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Toyota · Known Issues

2023-2026 Toyota bZ4X Problems: 14 Known Issues

2023-2026 model years · 4,210+ owner reports · Updated September 2026

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Issue summary

According to Au7o's analysis of 4,210+ owner reports, the 2023-2026 Toyota bZ4X has 14 documented known issues, with 6 rated critical. The most serious are Wheel Hub Bolt Loosening - Safety Recall 22V-651 ($0-$0 repair), Battery ECU Memory Write Conflict Shuts Down Drive System - Recall 26V393 ($0-$0 repair), Heat Pump A/C Compressor and Expansion Valve Seizure Requiring Full Refrigerant System Replacement ($3,500-$9,000 repair), Rearview Camera May Freeze or Fail to Display on Panoramic View Monitor - Recall 25V744, Defroster/Defogger May Become Inoperative During HVAC Fault - Recall 25V577 (25TA07) and 12V Auxiliary Battery Premature Failure and No-Start. The most commonly reported issue is Wheel Hub Bolt Loosening - Safety Recall 22V-651 with 2,600 owner reports. Across all issues with published estimates, repair costs range from $200 to $9,000. DIY maintenance guides at au7o.io.

In This Article

  • bZ4X Electrical7
  • bZ4X Safety/Recalls3
  • bZ4X HVAC2
  • bZ4X Brakes1
  • bZ4X Body/Panels1
  • Recalls4
  • FAQ
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In This Article

  • Electrical7
  • Safety/Recalls3
  • HVAC2
  • Brakes1
  • Body/Panels1
  • Recalls4
  • FAQ

All 14 Known Issues

NHTSA Recalls4 recalls

VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2023-2025 bZ4X, Lexus RZ, and Subaru Solterra vehicles. During certain HVAC system faults, such as electrical compressor failure, the defroster and defogger system may become inoperative.

Campaign #25V57700004/09/2025

BACK OVER PREVENTION:DISPLAY FUNCTION

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2022-2026 Toyota, Lexus, and Subaru Solterra vehicles equipped with a Panoramic View Monitor (PVM) system. Please see the recall report for a complete list of models. A software error may cause the rearview camera to freeze or display a blank screen when the vehicle is in reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."

Campaign #25V74400030/10/2025

EQUIPMENT:OTHER:LABELS

Gulf States Toyota, Inc. (GST) is recalling certain Toyota 2023 GR Supra, 2024 4 Runner, Corolla, Grand Highlander, Grand Highlander Hybrid, Land Cruiser Hybrid, Tacoma, Tacoma Hybrid, 2023-2024 BZ4X, Corolla Cross Hybrid, GR Corolla, GR86, Highlander, Highlander Hybrid, Prius, Prius Prime, Sequoia Hybrid, Tundra, Tundra Hybrid, Venza Hybrid, 2023-2025 Crown, and 2025 Camry Hybrid vehicles equipped with GST accessories. The load carrying capacity modification label may display inaccurate added weight values. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 110, "Tire Selection and Rims."

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Frequently Asked Questions

What are the most common Toyota bZ4X problems?

According to Au7o's analysis of 4,210+ owner reports, the 2023-2026 Toyota bZ4X has 14 documented issues. The most frequently reported are: Wheel Hub Bolt Loosening - Safety Recall 22V-651, Battery ECU Memory Write Conflict Shuts Down Drive System - Recall 26V393, Heat Pump A/C Compressor and Expansion Valve Seizure Requiring Full Refrigerant System Replacement. Of these, 6 are rated critical and should be addressed promptly.

Is the Toyota bZ4X reliable?

The 2023-2026 Toyota bZ4X has 14 known issues documented across 4,210+ owner reports. 6 issues are rated critical: Wheel Hub Bolt Loosening - Safety Recall 22V-651 and Battery ECU Memory Write Conflict Shuts Down Drive System - Recall 26V393 and Heat Pump A/C Compressor and Expansion Valve Seizure Requiring Full Refrigerant System Replacement and Rearview Camera May Freeze or Fail to Display on Panoramic View Monitor - Recall 25V744 and Defroster/Defogger May Become Inoperative During HVAC Fault - Recall 25V577 (25TA07) and 12V Auxiliary Battery Premature Failure and No-Start. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Toyota bZ4X problems?

Repair costs for known Toyota bZ4X issues range from $0 to $9,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Wheel Hub Bolt Loosening - Safety Recall 22V-651, typically costs $0-$0 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What year Toyota bZ4X is the most reliable?

Reliability varies across model years of the Toyota bZ4X. Based on documented issues, problems are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2023-2026 Toyota bZ4X with 14 documented issues documented across 4,210+ owner reports.

Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

Data sourced from 4,210+ owner reports, NHTSA recalls, TSBs, and automotive forums.

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ALL YEARS2026202520242023

Toyota recalled 20,991 model-year 2026 Toyota bZ (the renamed bZ4X), Lexus RZ, and Subaru Solterra EVs because the traction battery ECU contains two integrated circuits that can attempt to write to the same memory address at the same instant. Repeated collisions cause the memory to fail its operational self-check, which trips an EV System Malfunction warning, lights multiple indicators, and can shut down the electric drive system entirely. Power steering and power-assisted braking remain functional, but the vehicle loses motive power, which is most dangerous at highway speed. Owners on the bZ and Toyota Owners Club forums had been reporting spurious "EV System Malfunction" and drive-system dropouts before the campaign was filed.

Common Symptoms

  • EV System Malfunction warning message
  • Multiple warning indicators illuminate simultaneously
  • Sudden loss of motive power while driving
  • Vehicle will not accelerate but steering and brakes still assist
  • Car shuts down and requires restart

How to Fix

Free dealer reflash of the traction battery ECU software under NHTSA campaign 26V393; owner notification went out by mid-August 2026. If the car has already displayed EV System Malfunction and lost power, have the dealer confirm the recall remedy was applied and pull stored battery-ECU codes rather than assuming a reflash alone cleared it. Check the VIN at nhtsa.gov/recalls or Toyota Owners before assuming a used car has had the campaign performed.

Typical repair cost:$0 - $0

Research This Issue

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Community Reported
High ConfidenceVerifiedReviewed Aug 2026

Many 2023-2025 bZ4X owners report the 12V auxiliary battery going dead after the car sits idle for just 24-48 hours, leaving the vehicle completely unresponsive (no lights, no response to the start button) even when the high-voltage traction pack is fully charged. The 12V battery powers the contactors that bring the main pack online, so its failure immobilizes the car. Owners and complaint databases point to parasitic drain (connected-app/telematics and DC/DC converter behavior), and dealer-replaced batteries often pass diagnostics yet fail again within days or weeks.

This issue also affects: Toyota Tacoma, Lexus IS, Lexus RX

Common Symptoms

  • Car completely dead and unresponsive after sitting 24-48 hours
  • No exterior/interior lights and no response to the power/start button
  • Repeated 12V battery replacements that die again within days or weeks
  • Vehicle needs a jump-start or tow despite full traction-battery charge

How to Fix

Toyota dealers have replaced the auxiliary battery under warranty, though replacements frequently die again, indicating an underlying parasitic-drain/software cause; some owners report dealers denying claims because the battery passes diagnostic testing. Owners parking the car for long stretches are advised to use a 12V battery maintainer. As of 2026 there is no U.S. safety recall for the 12V issue; repeated unresolved failures may qualify for lemon-law relief.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Battery Tender Plus 021-0128 12V 1.25A charger and maintainer

    long-storage maintenance workaround after battery and parasitic-drain diagnosis, not a no-start repair Fitment/availability: 12V lead-acid, flooded, AGM, gel or sealed battery up to 80Ah; use only after confirming the installed bZ4X auxi…

    Tire Rack

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Research This Issue

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Community Reported
High ConfidenceVerifiedReviewed Jun 2026
Community reported
890 owners

The bZ4X's DC fast charging peaks at approximately 100kW but quickly tapers to 40-60kW, making charging sessions significantly longer than competitors. Cold weather reduces charging speed further, and the battery thermal management system is less aggressive than rivals.

Common Symptoms

  • DC fast charging slower than expected
  • Charging speed drops quickly above 30% SOC
  • Very slow charging in cold weather below 40F
  • Charging sessions take 60+ minutes for 10-80%

How to Fix

Pre-condition the battery before DC fast charging by using the climate control while driving to the charger. Toyota released OTA software updates improving charging curve management. Charge at higher power stations (150kW+) to maximize the initial charge burst. In cold weather, plan for significantly longer charging times. Level 2 home charging overnight is the most practical daily charging method.

Typical repair cost:$0 - $0

Research This Issue

Based on 890 owner reports

GoogleRedditYouTubeNHTSA
Community Reported
High Confidence890 owner reportsLast reported by owners Feb 2026Reviewed Feb 2026
Community reported
720 owners

The bZ4X experiences 30-45% range reduction in cold weather (below 32F/0C), dropping from the EPA-rated 252 miles to 140-175 miles in winter conditions. The heat pump system helps but cannot fully compensate for battery efficiency loss and cabin heating demands.

Common Symptoms

  • Range estimate drops dramatically in cold weather
  • Actual range 30-45% less than EPA rating in winter
  • Battery SOC drops faster in cold temperatures
  • Climate control uses significant battery energy

How to Fix

Use scheduled departure to pre-condition the cabin and battery while plugged in (this uses grid power, not battery). Set climate to Eco mode and use heated seats/steering wheel instead of cabin heat when possible. Maintain tire pressure (cold weather drops PSI). OTA updates from Toyota have improved energy management. Plan routes with 30% extra range buffer in winter.

Typical repair cost:$0 - $0

Research This Issue

Based on 720 owner reports

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Community Reported
High Confidence720 owner reportsLast reported by owners Feb 2026Reviewed Feb 2026

The bZ4X exhibits dramatically reduced DC fast charging speeds in cold weather (below 40°F/4°C), sometimes charging at only 6-15 kW on a 150 kW charger. The battery thermal management system aggressively limits charging current to protect the battery, but owners report charging sessions taking 2+ hours for a 20-80% charge in winter. Pre-conditioning via the app helps but doesn't fully resolve the issue.

This issue also affects: Nissan Ariya, Fiat 500e, Mazda MX-30

Common Symptoms

  • DC fast charging at 6-15 kW instead of 100+ kW
  • Charging sessions taking over 2 hours
  • Battery temperature warning on dashboard
  • Estimated charge time showing excessive duration

How to Fix

Use the Toyota app to pre-condition the battery before arriving at a DC fast charger. Drive at highway speeds for at least 20 minutes before charging to warm the battery pack. In extremely cold weather, consider using Level 2 (AC) charging overnight instead. A software update (TSB T-SB-0109-23) improved cold-weather charging algorithms but didn't eliminate the limitation.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Grizzl-E Classic GR1-14-24-PB 40A J1772 Level 2 EVSE

    overnight Level 2 charging alternative; does not increase DC fast-charging speed Fitment/availability: 2023-2025 U.S. Toyota bZ4X J1772 AC inlet; 208-240V NEMA 14-50 EVSE adjustable 16-40A, with circuit and continuous-load setting verifi…

    The Home Depot

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Owner tips & cautions

  • TipDrive on the highway for 20-30 minutes before hitting a DCFC in cold weather. The battery needs to be above 60°F for decent charge rates. Pre-conditioning through the app while plugged in at home also helps.
Typical repair cost:$0 - $0

Research This Issue

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Community Reported
Medium Confidence

Owners report the charging connector becoming stuck or failing to lock/release in the bZ4X charge port, distinct from charging-speed problems. The electronic port-lock pin must retract before the connector can be removed; a faulty charge-port lid sensor or sticking locking mechanism can keep the port 'locked,' trapping the cable or preventing a session from starting. The 2023 charge-port door hinge has also been reported to loosen so the lid won't latch (Consumer Reports flags 'charge port door' as a reported trouble spot).

Common Symptoms

  • Charging connector stuck and won't release from the port
  • Cable won't lock/charge unless pushed or held in place
  • Charge-port door won't latch (loose/dropped hinge)
  • Charge session won't start due to port-lid sensor fault

How to Fix

Workarounds include unlocking the car with the key fob to release the connector (the connector auto-relocks ~30 seconds after unlocking), resetting the charging system (power off and unplug, then retry), and avoiding forcing the handle. Persistent cases need a dealer to inspect/replace the port actuator, lid sensor, and wiring, or apply a software update; loose/broken door hinges are repaired or replaced.

Research This Issue

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Community Reported
Medium ConfidenceVerifiedReviewed Jun 2026

bZ4X owners across 2023-2025 report the central infotainment/audio head unit intermittently freezing, going black, or rebooting on its own, and wireless Apple CarPlay / Android Auto failing to connect or dropping mid-trip. Common complaints include having to manually re-enable CarPlay, Android Auto not staying connected (must be re-set each drive), and phones failing to connect (sometimes even wired). Toyota service bulletins reference 'intermittent screen freezing' and 'intermittent rebooting' on the multimedia unit.

Common Symptoms

  • Infotainment screen freezes, goes black, or reboots on its own
  • Wireless CarPlay must be re-enabled manually
  • Android Auto fails to stay connected / must be re-set every drive
  • Phone won't connect (even wired), worse in cold weather

How to Fix

Toyota addresses the head-unit freezing/rebooting with a software update for the audio/multimedia unit; owners should have the latest head-unit software flashed at a dealer. Power-cycling the head unit (long-press the power button) and re-pairing the phone are interim workarounds for CarPlay/Android Auto dropouts.

Research This Issue

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Community Reported
Medium ConfidenceVerifiedReviewed Jun 2026
Community reported
2,600 owners

Early 2023 bZ4X models were recalled for hub bolts that can loosen during driving, potentially causing wheel detachment. The hub bolts can lose torque due to a manufacturing defect. Toyota halted sales and issued recall 22V-651 with a stop-drive notice.

Common Symptoms

  • Clicking or clunking noise from wheels
  • Steering wheel vibration
  • Vehicle pulling to one side
  • Visible wheel wobble
  • Hub bolt torque loss on inspection

How to Fix

This is covered under recall 22V-651 at no cost. All hub bolts are replaced with redesigned bolts and retorqued. Toyota dealers will inspect and replace all hub bolts. Do NOT drive the vehicle if you suspect loose hub bolts - contact Toyota for towing assistance. Re-torque hub bolts at every tire rotation as maintenance.

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Call to confirm they service Toyota vehicles and check your VIN, recall eligibility, parts availability, and appointment options.

Owner tips & cautions

  • TipCheck NHTSA.gov for active recalls — repairs are performed free at authorized dealers
Typical repair cost:$0 - $0

Research This Issue

Based on 2,600 owner reports

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Community Reported
High Confidence2,600 owner reportsLast reported by owners Feb 2026Reviewed Feb 2026

A software error in the Parking Assist ECU (part of the Panoramic View Monitor system) can cause the rearview camera image to briefly freeze when reverse is selected shortly after startup, and the image may fail to display at all on the next ignition cycle if the vehicle is started and stopped within a short window. A frozen or missing backup image during a reversing maneuver reduces rear visibility and increases crash risk. NHTSA campaign 25V744000 covers over 1 million Toyota/Lexus/Subaru vehicles including the bZ4X; this is a federal FMVSS 111 rear-visibility compliance recall.

Common Symptoms

  • Backup camera image freezes when shifting into reverse right after startup
  • Rearview camera does not display on the next start after a quick off/on cycle
  • Blank or stuck Panoramic View Monitor screen while backing up

How to Fix

Dealers will update the Parking Assist ECU / Panoramic View Monitor software at no cost under recall 25V744. Interim owner notifications were sent first, with follow-up letters once the final remedy software is available.

Find a Toyota dealer

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Call to confirm they service Toyota vehicles and check your VIN, recall eligibility, parts availability, and appointment options.

Research This Issue

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Community Reported
High ConfidenceVerifiedReviewed Jun 2026

Certain 2023-2024 bZ4X vehicles equipped with Gulf States Toyota (GST) dealer-installed accessories carry a load-carrying-capacity modification label that displays inaccurate added-weight values. A vehicle with an incorrect maximum capacity weight value may be overloaded, increasing crash risk, and the affected vehicles fail to comply with FMVSS 110 ('Tire Selection and Rims'). NHTSA campaign 24V548000 covers roughly 33,848 units across affected Toyota models.

Common Symptoms

  • Load-carrying-capacity modification label shows wrong added-weight value
  • Stated maximum payload is inaccurate (overload risk if relied upon)

How to Fix

Under recall 24V548, Gulf States Toyota mails corrected load-capacity labels to owners free of charge for the owner to apply (replacement also available at any Toyota dealer at no charge). No mechanical repair is required; the fix is the corrected weight-information label.

Find a Toyota dealer

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Call to confirm they service Toyota vehicles and check your VIN, recall eligibility, parts availability, and appointment options.

Research This Issue

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Community Reported
High ConfidenceVerifiedReviewed Jun 2026

Separate from the 25V577 software failsafe recall, bZ4X owners have suffered outright hardware failure of the electric heat-pump compressor and/or the thermal expansion valve, usually first appearing in sub-freezing weather. The heat pump serves both cabin heat and the traction battery chiller, so when the compressor seizes the car loses cabin heat, windshield defrost, and battery thermal conditioning at the same time, and it throws HVAC/EV system malfunction messages. Toyota's published repair for a seized compressor that has contaminated the loop is not a compressor swap but replacement of the entire refrigerant system — compressor, battery chiller, gas cooler, and the associated lines and valves — because metal debris circulates through the whole circuit. The job requires dash removal and, on a low-volume model, the parts have repeatedly gone on backorder, stranding cars at dealers for weeks.

Common Symptoms

  • Cabin heat fades away during sub-freezing highway driving
  • Windshield will not defrost
  • HVAC system faulty / A/C system malfunction message
  • No cooling in summer after a winter heat-pump failure
  • Battery preconditioning stops working and fast charging slows further
  • Car held at dealer for weeks awaiting compressor backorder

How to Fix

Have the dealer scan the HVAC/battery thermal ECU and confirm whether it is the recall software condition (25V577 reflash, free) or a genuine seized compressor/expansion valve. Hardware failures within the powertrain/EV component warranty are covered; out of warranty the full-system replacement is a very large bill. Do not let a shop simply install a compressor without flushing or replacing the chiller and gas cooler after a seizure, or the debris will kill the new compressor. Owners in cold climates report fewer failures when the car is preconditioned while still plugged in rather than cold-cycling the heat pump at start-up.

Typical repair cost:$3,500 - $9,000

Research This Issue

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Community Reported
Medium ConfidenceVerifiedReviewed Aug 2026

During certain HVAC faults, such as an electrical (A/C) compressor failure, the bZ4X climate system can enter a failsafe state that leaves the windshield defroster and defogger inoperative, reducing driver visibility in cold or damp conditions. NHTSA recall campaign 25V577000 (Toyota code 25TA07) covers approximately 94,320 certain 2023-2025 Toyota bZ4X, Lexus RZ, and Subaru Solterra vehicles. Owner notification letters were mailed in October 2025.

Common Symptoms

  • Windshield defroster fails to clear glass in cold/damp weather
  • Defogger becomes inoperative
  • Loss of cabin heat/defrost when the A/C compressor faults
  • Reduced forward visibility / fogged windshield

How to Fix

Under recall 25V577, dealers update the HVAC control ECU software free of charge and inspect the electrical compressor, replacing it at no cost if necessary. Owners can contact Toyota customer service at 1-800-331-4331 referencing campaign 25TA07.

Find a Toyota dealer

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Open Toyota dealer map in Google Maps ↗

Call to confirm they service Toyota vehicles and check your VIN, recall eligibility, parts availability, and appointment options.

Research This Issue

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Community Reported
High ConfidenceVerifiedReviewed Jun 2026

The bZ4X's regen strategy is far more conservative than most EVs, and owners report the regen "Boost" mode and one-pedal-style deceleration are simply unavailable a large fraction of the time — one long-running forum thread documents it being unavailable roughly 75-80% of driving. Owners expect the limitation near a full pack, but report it also refuses to engage at states of charge below 40% and after any cold soak, and that once the system disables regen it often will not re-enable for the rest of the drive without a full power cycle. The car displays a regen-unavailable message and blends in friction braking instead, which changes pedal feel and deceleration rate without warning. This is a control-strategy/battery-acceptance behavior rather than a hardware defect, but it is a persistent, widely reported complaint that catches drivers out mid-corner or in traffic.

Common Symptoms

  • Regenerative braking unavailable message on the display
  • Boost regen button does nothing
  • Car coasts instead of decelerating when lifting off the accelerator
  • Brake pedal feel changes between drives
  • Regen never re-enables after dropping out until the car is restarted
  • Noticeably worse efficiency in cold weather

How to Fix

There is no repair for the underlying strategy; it is how the BMS protects the cell chemistry when the pack is cold or near full. Practical mitigations owners use: precondition the battery on the charger before departure, set the charge limit to 80% rather than 100% so there is headroom for regen current, and drive gently for the first several miles in winter until the pack warms. Ask the dealer to confirm the car has the latest battery/brake control software, since Toyota has revised regen calibration over the model run. If regen never returns after a drop-out even with a warm pack at mid state of charge, have the brake control ECU and hybrid/EV battery ECU scanned for stored codes.

Research This Issue

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Community Reported
Medium ConfidenceVerifiedReviewed Aug 2026

The plastic front underbody splash/aero shield on the bZ4X is retained by push clips and thin sheet-metal screws into the lower bumper cover. Owners report the shield sagging, then catching air/water and tearing free after driving through ordinary road puddles, slush, or a dip at normal speeds. Because the shield is fastened to the lower edge of the front bumper cover, when it lets go it frequently rips the bumper cover's lower tabs and clips out with it, leaving the fascia hanging or partially detached. Reports appear across the bZ4X owner forums, Reddit, and NHTSA complaints, including cars with barely 11,000 miles, which points to under-engineered retention rather than impact damage.

Common Symptoms

  • Loud scraping or flapping noise from under the front of the car
  • Plastic panel visibly drooping below the front bumper
  • Front bumper cover hanging loose or detached on one side after driving through a puddle
  • Rattling at highway speed from the front underbody
  • Parking sensor or radar fault after underbody panel damage

How to Fix

Have the dealer replace the failed retainers/clips and the front engine-under-cover; if the bumper cover's lower mounting tabs are torn, the fascia itself must be replaced and repainted. Many owners preemptively add larger-flange fender washers or extra clips at the leading edge and inspect the shield at each tire rotation, since a drooping shield is the warning sign before it departs. Damage found soon after delivery is often covered under the basic warranty as a workmanship claim, though dealers routinely try to write it off as road hazard.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Genuine Toyota 51441-42210 front motor under-cover

    torn or missing front motor under-cover branch; exact clips and bolts remain VIN/location-specific Fitment/availability: 2023-2025 Toyota bZ4X electric; confirm VIN and inspect all adjacent covers and bumper tabs Fitment/availability: sh…

    ToyotaPartsDeal

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Typical repair cost:$200 - $1,200

Research This Issue

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Community Reported
High ConfidenceVerifiedReviewed Aug 2026
Campaign #24V54800023/07/2024

WHEELS:HUB

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2023 Subaru Solterra and Toyota BZ4X vehicles. The hub bolts on the wheels may loosen, causing a wheel to detach from the vehicle after low-mileage use.

Campaign #22V44400023/06/2022

Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.

get a full repair guide

What is the 2023 Toyota bZ4X Wheel Hub Bolt Loosening - Safety Recall 22V-651?

Early 2023 bZ4X models were recalled for hub bolts that can loosen during driving, potentially causing wheel detachment. The hub bolts can lose torque due to a manufacturing defect. Toyota halted sales and issued recall 22V-651 with a stop-drive notice. Repairs typically run $0-$0. Severity: high.

What is the 2026 Toyota bZ4X Battery ECU Memory Write Conflict Shuts Down Drive System - Recall 26V393?

Toyota recalled 20,991 model-year 2026 Toyota bZ (the renamed bZ4X), Lexus RZ, and Subaru Solterra EVs because the traction battery ECU contains two integrated circuits that can attempt to write to the same memory address at the same instant. Repeated collisions cause the memory… Repairs typically run $0-$0. Severity: high.

What is the 2023-2025 Toyota bZ4X Heat Pump A/C Compressor and Expansion Valve Seizure Requiring Full Refrigerant System Replacement?

Separate from the 25V577 software failsafe recall, bZ4X owners have suffered outright hardware failure of the electric heat-pump compressor and/or the thermal expansion valve, usually first appearing in sub-freezing weather. The heat pump serves both cabin heat and the traction b… Repairs typically run $3,500-$9,000. Severity: high.

What is the 2023-2025 Toyota bZ4X Rearview Camera May Freeze or Fail to Display on Panoramic View Monitor - Recall 25V744?

A software error in the Parking Assist ECU (part of the Panoramic View Monitor system) can cause the rearview camera image to briefly freeze when reverse is selected shortly after startup, and the image may fail to display at all on the next ignition cycle if the vehicle is start… Severity: high.

What is the 2023-2025 Toyota bZ4X Defroster/Defogger May Become Inoperative During HVAC Fault - Recall 25V577 (25TA07)?

During certain HVAC faults, such as an electrical (A/C) compressor failure, the bZ4X climate system can enter a failsafe state that leaves the windshield defroster and defogger inoperative, reducing driver visibility in cold or damp conditions. NHTSA recall campaign 25V577000 (To… Severity: high.

What is the 2023-2025 Toyota bZ4X 12V Auxiliary Battery Premature Failure and No-Start?

Many 2023-2025 bZ4X owners report the 12V auxiliary battery going dead after the car sits idle for just 24-48 hours, leaving the vehicle completely unresponsive (no lights, no response to the start button) even when the high-voltage traction pack is fully charged. The 12V battery… Severity: high.

What is the 2023-2025 Toyota bZ4X DC Fast Charging Speed Significantly Below Rated Capacity?

The bZ4X's DC fast charging peaks at approximately 100kW but quickly tapers to 40-60kW, making charging sessions significantly longer than competitors. Cold weather reduces charging speed further, and the battery thermal management system is less aggressive than rivals. Repairs typically run $0-$0. Severity: medium.

What is the 2023-2025 Toyota bZ4X Significant Range Reduction in Cold Weather?

The bZ4X experiences 30-45% range reduction in cold weather (below 32F/0C), dropping from the EPA-rated 252 miles to 140-175 miles in winter conditions. The heat pump system helps but cannot fully compensate for battery efficiency loss and cabin heating demands. Repairs typically run $0-$0. Severity: medium.

What is the 2023-2025 Toyota bZ4X Severely Reduced DC Fast Charging Speed in Cold Weather?

The bZ4X exhibits dramatically reduced DC fast charging speeds in cold weather (below 40°F/4°C), sometimes charging at only 6-15 kW on a 150 kW charger. The battery thermal management system aggressively limits charging current to protect the battery, but owners report charging s… Repairs typically run $0-$0. Severity: medium.

What is the 2023-2025 Toyota bZ4X Charge Connector / Port Locking Mechanism Sticking?

Owners report the charging connector becoming stuck or failing to lock/release in the bZ4X charge port, distinct from charging-speed problems. The electronic port-lock pin must retract before the connector can be removed; a faulty charge-port lid sensor or sticking locking mechan… Severity: medium.

What is the 2023-2025 Toyota bZ4X Infotainment Screen Freezing/Rebooting and CarPlay/Android Auto Dropouts?

bZ4X owners across 2023-2025 report the central infotainment/audio head unit intermittently freezing, going black, or rebooting on its own, and wireless Apple CarPlay / Android Auto failing to connect or dropping mid-trip. Common complaints include having to manually re-enable Ca… Severity: medium.

What is the 2023-2025 Toyota bZ4X Regenerative Braking Boost Unavailable and One-Pedal Regen Dropping Out Unpredictably?

The bZ4X's regen strategy is far more conservative than most EVs, and owners report the regen "Boost" mode and one-pedal-style deceleration are simply unavailable a large fraction of the time — one long-running forum thread documents it being unavailable roughly 75-80% of driving… Severity: medium.

What is the 2023-2025 Toyota bZ4X Front Underbody Splash Shield and Lower Bumper Cover Tearing Loose at Low Speed?

The plastic front underbody splash/aero shield on the bZ4X is retained by push clips and thin sheet-metal screws into the lower bumper cover. Owners report the shield sagging, then catching air/water and tearing free after driving through ordinary road puddles, slush, or a dip at… Repairs typically run $200-$1,200. Severity: medium.

What is the 2023-2024 Toyota bZ4X Incorrect Load Carrying Capacity Label - Recall 24V548?

Certain 2023-2024 bZ4X vehicles equipped with Gulf States Toyota (GST) dealer-installed accessories carry a load-carrying-capacity modification label that displays inaccurate added-weight values. A vehicle with an incorrect maximum capacity weight value may be overloaded, increas… Severity: low.