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Toyota · Known Issues

2021 Toyota Camry Problems: 3 Known Issues

2021 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026

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Vehicle data and repair guidance on this site are compiled with AI assistance and may contain errors. Always verify with your service manual or a qualified mechanic.

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Issue summary

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Toyota Camry has 3 documented known issues. None of the listed issues is rated critical; this is not a complete reliability assessment. DIY maintenance guides at au7o.io.

In This Article

  • Camry Engine1
  • Camry Electrical1
  • Camry HVAC1
  • Recalls5
  • FAQ
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In This Article

  • Engine1
  • Electrical1
  • HVAC1
  • Recalls5
  • FAQ

All 3 Known Issues

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ALL YEARS20262025202420232022202120202019201820172016201520142013201220112010200920082007200620052004200320022001200019991998199719961995199419931992

On the 2018-2024 Toyota Camry A25A-FKS 2.5L I4, toyota T-SB-0010-24 applies to 2018-2024 Camry vehicles with the A25A-FKS engine that misfire after a cold soak when engine-coolant temperature in freeze-frame data is 14-41 degrees F. The bulletin identifies P030027, P030000, P030100, P030200, P030300, and P030400. It does not authorize lash-adjuster replacement from a rough-start complaint alone: compression, spark plugs and coils, direct- and port-injector resistance, and the fuel system must first meet specification.

This issue also affects: Lexus GS, Lexus LX, Lexus IS

Common Symptoms

  • Cold-soak misfire with coolant freeze-frame temperature of 14-41 degrees F
  • Rough running immediately after an eligible cold soak
  • MIL with one or more exact T-SB-0010-24 misfire DTCs

How to Fix

Confirm that an exact listed DTC is present and that freeze-frame coolant temperature was 14-41 degrees F. Follow T-SB-0010-24 to verify cylinder compression, spark-plug and ignition-coil operation, direct- and port-injector resistance, and fuel-system operation. If every prerequisite is within specification and the bulletin's decision path is satisfied, replace all eight exhaust-side hydraulic lash adjusters and required one-time-use seals/gaskets using the bulletin and current VIN-specific parts information. Do not substitute a generic P0300 diagnosis, assume intake carbon is the cause, or order an old/superseding part number from this card.

Owner tips & cautions

  • TipSave the exact seven-character DTC and freeze-frame coolant temperature before clearing codes; both determine whether T-SB-0010-24 applies.
  • WarningThe bulletin requires compression, ignition, both injector systems, and fuel-system checks before eight lash adjusters are authorized, and it expressly says not to use superseding part numbers from its table.

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High ConfidenceVerifiedReviewed Jul 2026

On the 2020-2021 Toyota Camry, toyota T-SB-0095-20 applies to some 2020-2021 Camry and Camry Hybrid vehicles that may have a depleted 12-volt battery while the ignition is off. The same DCM firmware condition may also present with B15A804 in current or history, a red SOS LED that remains on after bulb check, an inoperative Toyota App, inability to subscribe to remote services, or inability to activate Wi-Fi. This evidence does not support a generic 2018-2023 claim or prove that every discharged Camry battery is caused by the DCM.

This issue also affects: Lexus UX

Common Symptoms

  • Depleted 12-volt battery while the ignition is off
  • DTC B15A804 in current or history
  • Red SOS LED remains on after bulb check
  • Toyota App or remote services inoperative
  • Unable to activate vehicle Wi-Fi

How to Fix

Test the 12-volt battery and charging system and measure key-off draw before assigning the cause. If the vehicle is an applicable 2020-2021 Camry or Camry Hybrid and has the T-SB-0095-20 condition, follow Toyota's DCM reset and firmware-update procedure with the required battery support and Techstream steps. Continue normal parasitic-draw diagnosis when the vehicle, DCM firmware, DTC, or symptoms do not match. Do not replace a battery, relay, telematics module, or buy a maintainer from this card without diagnosis.

Owner tips & cautions

  • TipRecord battery state, key-off draw, DCM firmware and B15A804 history before clearing codes or disconnecting power; a weak battery and a DCM draw can coexist.
  • WarningT-SB-0095-20 is limited to 2020-2021 Camry/Camry Hybrid and does not make a battery, maintainer, relay, or telematics module an automatic repair.

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On the 2007-2022 Toyota Camry, toyota T-SB-0080-19 Rev1 documents an environmental condition in particular geographic areas where an insect nest may obstruct the HVAC evaporator drain hose on some 2007-2022 Camry and Camry Hybrid vehicles. Reduced condensate drainage can contribute to water backing up at the HVAC case, but wet carpet alone does not prove this cause; windshield/body/cowl entry, A/C case or hose displacement and coolant leakage must be distinguished. The bulletin is not a recall and lists the optional service as not applicable to warranty.

Common Symptoms

  • Wet carpet near the HVAC case
  • Little or no evaporator condensate draining beneath the vehicle while the A/C operates

How to Fix

Identify the liquid and entry path before disturbing the HVAC drain. Check for normal condensate discharge while the A/C operates, inspect the drain hose/case connection and separately test windshield, cowl, body-seam, door and heater-core/coolant possibilities. If an insect nest obstructs a covered vehicle's drain, follow T-SB-0080-19 and the VIN-specific repair manual to remove the hose and install the optional ARINIX tip with the exact hose/grommet procedure required for production origin and model year. The tip contains pesticide and requires the bulletin's PPE/handling rules. Dry the carpet and underlay fully and inspect any wet connectors. Do not probe the case, flush it, or buy the prior cleaner/hose from this card.

Owner tips & cautions

  • WarningWet carpet is not proof of a clogged A/C drain. Identify the liquid and entry path so a windshield/body leak or heater-core coolant leak is not missed.
  • TipToyota's optional ARINIX tip contains pesticide and has model-specific hose and PPE requirements; use T-SB-0080-19 rather than probing or chemically flushing the HVAC case.

Research This Issue

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NHTSA Recalls5 recalls

AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2020-2021 Avalon, Avalon Hybrid, Corolla, Highlander, Highlander Hybrid, RAV4, RAV4 Hybrid, Lexus ES350, Lexus RX350, Lexus RX450H, 2021 Sienna Hybrid, Lexus ES250, 2020-2022 Camry, Camry Hybrid, and ES300H vehicles. A short circuit may develop in the Occupant Classification System (OCS) sensor, preventing the front passenger air bag from deploying.

Campaign #23V86500020/12/2023

WHEELS:LUGS/NUTS/BOLTS/STUDS

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2023 Camry and Camry Hybrid vehicles. The lug nuts that attach the wheels to the vehicle may be loose, which can result in wheel detachment.

Campaign #23V43200015/06/2023

SEATS

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2023-2024 Camry and Camry Hybrid vehicles. The second-row center and right-side seats may have insufficiently welded head restraint brackets. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 202, "Head Restraints."

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Other Toyota Models

Toyota RAV460Toyota Corolla54Toyota Highlander51Toyota 4Runner47Toyota Tacoma46Toyota Sienna32

Frequently Asked Questions

What are the most common Toyota Camry problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Toyota Camry has 3 documented issues. The most frequently reported are: A25A-FKS Cold-Soak Misfire Diagnosis (T-SB-0010-24), 2020-2021 DCM-Related 12-Volt Battery Discharge (T-SB-0095-20), Certain 2007-2022 HVAC Drain-Hose Insect Obstruction - T-SB-0080-19. None are rated critical, but regular maintenance is recommended.

Is the Toyota Camry reliable?

The 2021 Toyota Camry has 3 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. None of the matching records is rated critical; this is not a complete reliability assessment. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

What is the 2018-2024 Toyota Camry A25A-FKS Cold-Soak Misfire Diagnosis (T-SB-0010-24)?

Toyota T-SB-0010-24 applies to 2018-2024 Camry vehicles with the A25A-FKS engine that misfire after a cold soak when engine-coolant temperature in freeze-frame data is 14-41 degrees F. The bulletin identifies P030027, P030000, P030100, P030200, P030300, and P030400. It does not a… Severity: medium.

What is the 2020-2021 Toyota Camry 2020-2021 DCM-Related 12-Volt Battery Discharge (T-SB-0095-20)?

Toyota T-SB-0095-20 applies to some 2020-2021 Camry and Camry Hybrid vehicles that may have a depleted 12-volt battery while the ignition is off. The same DCM firmware condition may also present with B15A804 in current or history, a red SOS LED that remains on after bulb check, a… Severity: medium.

What is the 2007-2022 Toyota Camry Certain 2007-2022 HVAC Drain-Hose Insect Obstruction - T-SB-0080-19?

Toyota T-SB-0080-19 Rev1 documents an environmental condition in particular geographic areas where an insect nest may obstruct the HVAC evaporator drain hose on some 2007-2022 Camry and Camry Hybrid vehicles. Reduced condensate drainage can contribute to water backing up at the H… Severity: low.

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 compiled from NHTSA recalls, manufacturer TSBs, automotive forums, and AI-assisted research. No aggregated owner-report counts available for this vehicle yet.

Campaign #24V12800021/02/2024

ENGINE AND ENGINE COOLING

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2020 Toyota Avalon Hybrid, Camry, Camry Hybrid and Lexus ES300h and 2019-2020 RAV4 and RAV4 Hybrid vehicles equipped with 2.5L 4-Cylinder engines. Porosity in the engine castings may result in cracks than can allow coolant to leak internally and/or externally.

Campaign #20V06400006/02/2020

FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018-2019 4Runner, 2019-2020 Avalon, 2019 Corolla Hatchback, 2017-2019 Highlander, 2018-2020 Camry, 2020 Corolla, 2018-2019 Land Cruiser, 2017-2020 Tacoma, 2019-2020 RAV4, 2019-2020 Sequoia, 2017-2020 Sienna, 2019-2020 Tundra, 2018-2020 Lexus ES350, 2017 Lexus GS200t, 2017-2019 Lexus GS350, 2019 Lexus GS300, 2018-2020 Lexus LC500h, 2019-2020 Lexus LS500, 2018-2019 Lexus GX460, 2017 Lexus IS200t, 2019 Lexus IS300, 2019 Lexus IS350, 2018-2020 Lexus LC500, 2018 Lexus LS500, 2019 Lexus LS500h, 2018-2019 Lexus LX570, 2017 Lexus RC200t, 2019 Lexus RC300, RC350, 2017 and 2019-2020 Lexus RX350, 2018-2020 RX350L, 2019 Lexus UX200, 2018-2019 Lexus NX300 vehicles. The low-pressure fuel pump inside the fuel tank may fail.

Campaign #20V68200004/11/2020

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