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Kia · Known Issues

2026 Kia EV9 Problems: 6 Known Issues

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

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Issue summary

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2026 Kia EV9 has 6 documented known issues. None of the listed issues is rated critical; this is not a complete reliability assessment. Across all issues with published estimates, repair costs range from $150 to $1,600. DIY maintenance guides at au7o.io.

In This Article

  • EV9 Electrical2
  • EV9 Suspension1
  • EV9 Body/Panels1
  • EV9 Safety/Recalls1
  • EV9 Interior1
  • Recalls10
  • FAQ
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In This Article

  • Electrical2
  • Suspension1
  • Body/Panels1
  • Safety/Recalls1
  • Interior1
  • Recalls10
  • FAQ

All 6 Known Issues

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ALL YEARS202620252024

On the 2024-2026 Kia EV9, eV9 owners report the 12V auxiliary battery going flat repeatedly while the high-voltage pack is nearly full, leaving the vehicle completely dead - doors, screens and the start button unresponsive, and no way to enter Ready mode no matter how much range is showing. NHTSA has 6 logged 12V auxiliary battery depletion complaints on the 2024-2025 EV9 and the owner forums carry far more. Crucially this is not always ICCU failure: a large share of these cases show a healthy ICCU and no 'Check Electric Vehicle System' warning, and the cause is parasitic draw from body or telematics modules that fail to go to sleep. The most repeatable owner-identified trigger is a Digital Key phone or fob left within range of the parked vehicle overnight - typically a garage adjacent to the house - which repeatedly wakes the welcome/approach logic and drains the small AGM battery. Repeated deep discharges then permanently damage the 12V battery itself, so the car keeps dying even after the software cause is addressed. Because the 12V is what closes the main HV contactors, a flat 12V immobilizes the vehicle completely and requires a jump at the underhood terminals.

Common Symptoms

  • Vehicle completely dead and unresponsive despite a nearly full HV battery
  • Will not enter Ready mode
  • Doors will not unlock with the fob; mechanical key needed
  • Screens dark, no power at the start button
  • Needs a jump start every few weeks
  • Repeat 12V battery replacements

How to Fix

Two-part fix. First, have the dealer apply the current body and telematics software updates - Kia has issued updates addressing parasitic drain on E-GMP vehicles - and have them run and document a parasitic draw test (a healthy sleeping EV9 should settle to a low milliamp draw within roughly 30-60 minutes; a sustained draw much above ~50 mA is a fault to chase). Second, if the battery has been deep-discharged several times, replace the 12V AGM battery itself ($200-350 at a dealer, less DIY) because a repeatedly flattened AGM will not hold charge again. As an interim measure, store the Digital Key phone and fob away from the wall nearest the vehicle, and confirm no accessory is wired to an always-hot circuit. Have the ICCU checked in the same visit to rule out the separate ICCU failure mode - if 'Check Electric Vehicle System' appears alongside the dead 12V, that is the ICCU, not parasitic drain.

Typical repair cost:$0 - $350

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Community Reported
Low ConfidenceVerifiedReviewed Aug 2026

On the 2024-2026 Kia EV9, as a new electric vehicle, the Kia EV9 has experienced typical first-generation software issues including infotainment freezes, occasional display glitches, OTA update failures, and EV charging session interruptions. The dual-screen display setup occasionally desynchronizes, and some owners have reported inaccurate range estimation in extreme temperatures. Kia has been actively pushing software updates to address these issues. These are expected growing pains for a new EV platform.

Common Symptoms

  • Infotainment screen freezing or rebooting
  • Dual displays desynchronizing
  • OTA update installation failures
  • Charging session interruptions at public chargers
  • Inaccurate range estimation in extreme temperatures

How to Fix

Typical repair cost:$0 - $0

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Community Reported
Medium Confidence

On the 2024-2026 Kia EV9, a large number of EV9s — heavily concentrated in the 2024 launch year but still appearing on later builds — were delivered with rear toe and camber outside specification. Combined with roughly 5,900 lb curb weight, instant torque to the rear axle, and factory tires that start at only about 9/32 in of tread, the rear tires scrub away on the inner shoulder. Owners on the Kia EV forums report rear tires down to the wear bars between 2,000 and 10,000 miles, with fronts following shortly after. Kia's 8,000-mile rotation interval is too long to mask it, and dealers frequently blame driving style before anyone puts the vehicle on an alignment rack.

Common Symptoms

  • Rear tires worn to cords on the inner shoulder by 5,000-10,000 miles
  • Uneven inner-edge wear
  • Tire noise increasing with mileage
  • Front tires wearing out shortly after the rears

How to Fix

Insist on a four-wheel alignment with a printed before/after sheet — do not accept 'it's within spec' verbally. Rear toe and camber are adjustable; a correct alignment on an early car often takes a large correction. Have this done at delivery or as soon as uneven inner-shoulder wear appears, and shorten rotation to every 3,000-4,000 miles. Keep the alignment printout to support a goodwill tire claim with Kia.

Typical repair cost:$150 - $1,600

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Community Reported
High ConfidenceVerifiedReviewed Aug 2026

On the 2024-2026 Kia EV9, the EV9's motorized charge port door is a recurring owner complaint in two distinct failure modes. Electrically, the release actuator does not wake with the vehicle — the door will not pop when pushed or when commanded from the fob or screen, and owners sometimes hear the motor run without the door releasing, consistent with the internal gear slipping. Mechanically, the recessed groove around the flap packs with snow and slush that refreezes, and the release mechanism itself has been found excessively tight from the factory, so in cold weather the door will not open at all. Owners report Kia denying some of these claims as 'outside influence' rather than a warranty defect.

Common Symptoms

  • Charge port door will not pop open when pushed
  • Motor audible behind the flap but door stays shut
  • Door frozen shut after snow or freezing rain
  • Charge door will not latch or lock fully when closed
  • Cannot charge until door is forced open

How to Fix

For the no-release electrical case, wake the body control module: open and close a rear passenger door, or lock and then hold the unlock button on the fob for several seconds, then push the flap. If the motor runs but nothing releases, the charge port door assembly/actuator needs replacement. Ask the dealer to check and free the release mechanism if it is tight from the factory — several owners had this adjusted under warranty. In winter, precondition the cabin before charging, clear ice from the groove around the flap, and treat the seal with silicone lubricant so it does not bond.

Typical repair cost:$0 - $500

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Community Reported
Medium ConfidenceVerifiedReviewed Aug 2026

On the 2024-2026 Kia EV9, eV9 owners using Highway Driving Assist 2 report the vehicle wandering rhythmically from one lane edge to the other instead of tracking the lane center, a behaviour owners call ping-ponging. The pattern described is Lane Following Assist going dormant while the camera still sees both lane markings: the car drifts until Lane Keeping Assist catches it near the boundary, nudges it back, and the cycle repeats, producing a slow side-to-side weave with intermittent steering-torque corrections. It is markedly worse on pavement with longitudinal rain grooves, and much of the reporting comes from owners who moved from an EV6 and found that car's lane centering noticeably steadier, which argues this is an EV9 calibration issue rather than a normal limit of the technology. The risk is twofold - the weave is fatiguing and unnerving to passengers, and drivers who have learned to trust the system on other Hyundai/Kia products may not have hands ready when the correction comes late near a lane edge. As of the owner reports gathered here, no OTA update had been released that resolves it, and safety systems are the second-largest NHTSA complaint category on the EV9 (36 complaints).

Common Symptoms

  • Vehicle weaves side to side within the lane under HDA2
  • Repeated steering corrections near lane edges
  • Worse on pavement with rain grooves
  • Lane centering drops out while lane markings are clearly visible
  • Behaviour noticeably worse than the same system on an EV6

How to Fix

There is no recall or published remedy for this behaviour. Have the dealer confirm the front camera and radar are running current software and that the front camera has been recalibrated - a camera left uncalibrated after a windshield replacement or front-end repair reproduces exactly this symptom and is a genuine fixable cause. Verify wheel alignment and that tire pressures are even side to side, since a vehicle that pulls forces the system into constant correction. If calibration and alignment are correct and the weave persists, treat it as a system limitation: keep hands on the wheel, and consider using Lane Following Assist with adaptive cruise rather than full HDA2 lane centering on grooved pavement. File an NHTSA complaint - ADAS calibration changes are delivered by OTA and are driven by complaint volume.

Typical repair cost:$0 - $400

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Community Reported
Low ConfidenceVerifiedReviewed Aug 2026

On the 2024-2026 Kia EV9, on EV9s equipped with power second-row seats and the one-touch easy-entry function, the seat control module loses its stored 'seat limit position' parameter. Once that happens the third-row easy-access button on the seat shoulder stops responding entirely, and the second-row fold-flat buttons in the cargo area stop working too - the seat either does nothing or starts moving forward and halts partway without folding. Owners also report a touchscreen prompt asking them to verify the driver seat position when they press the control, which is the module refusing to run the motion because it has no valid travel limit stored. On a three-row family SUV this is not cosmetic: it blocks third-row access for children and blocks the seat fold needed to load cargo, and there is no manual override on the powered seats. This condition is distinct from the SC329 missing seat mounting bolt recall, which is a structural fastener defect rather than a control-module memory fault.

Common Symptoms

  • One-touch third-row access button does nothing
  • Second-row fold-flat buttons in the cargo area stop working
  • Seat starts moving forward then stops before folding
  • Touchscreen message asking to verify the driver seat position
  • Second-row seat unresponsive to both the seat button and the touchscreen control

How to Fix

The seat cannot be re-initialized by the owner. The dealer must reprogram the seat limit position with a Kia diagnostic scan tool, which restores both the easy-access button and the cargo-area fold buttons. This is normally covered under the 5-year/60,000-mile basic warranty; out of warranty expect roughly $150-250 of diagnostic and programming labour. If the position keeps being lost after reprogramming, ask the dealer to check for seat control module software updates and to inspect the seat harness under the rail for chafing or an intermittent connector, since a dropped connection mid-travel is what wipes the learned limit. Before booking, confirm the front seat is not positioned so far rearward that it mechanically blocks second-row travel - the system refuses to move in that case, which mimics the fault.

Typical repair cost:$0 - $250

Research This Issue

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Community Reported
Medium ConfidenceVerifiedReviewed Aug 2026
NHTSA Recalls10 recalls

POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT

Kia America, Inc. (Kia) is recalling certain 2023 Niro EV and 2024 EV9 vehicles. The differential gear bolts in the gear drive unit may not be tightened properly, which can result in a loss of drive power or cause the differential to lock up.

Campaign #24V27100016/04/2024

SEAT BELTS:FRONT:RETRACTOR

Kia America, Inc. (Kia) is recalling certain 2024 EV9 vehicles. The front passenger seat belt retractor cover may not be secured properly, which can cause the front passenger seat belt automatic locking retractor (ALR) and emergency locking retractor (ELR) to not operate as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 208, "Occupant Crash Protection" and 209, "Seat Belt Assemblies."

Campaign #24V33800014/05/2024

STRUCTURE:INTERIOR PANELS:CEILING

Kia America, Inc. (Kia) is recalling certain 2024 EV9 vehicles. The headliner may not adequately protect passengers from impact in a crash. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 201, "Occupant Protection In Interior Impact."

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Frequently Asked Questions

What are the most common Kia EV9 problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2026 Kia EV9 has 6 documented issues. The most frequently reported are: Rear Alignment Out of Spec From the Factory Wearing Rear Tires Out Under 10,000 Miles, Charge Port Door Actuator Fails to Release or Freezes Shut in Winter, 12V Auxiliary Battery Repeatedly Drains Flat From Parasitic Module Wake - Vehicle Will Not Enter Ready Mode. None are rated critical, but regular maintenance is recommended.

Is the Kia EV9 reliable?

The 2026 Kia EV9 has 6 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.

How much does it cost to fix common Kia EV9 problems?

Repair costs for known Kia EV9 issues range from $0 to $1,600, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2024-2026 Kia EV9 Rear Alignment Out of Spec From the Factory Wearing Rear Tires Out Under 10,000 Miles?

A large number of EV9s — heavily concentrated in the 2024 launch year but still appearing on later builds — were delivered with rear toe and camber outside specification. Combined with roughly 5,900 lb curb weight, instant torque to the rear axle, and factory tires that start at… Repairs typically run $150-$1,600. Severity: medium.

What is the 2024-2026 Kia EV9 Charge Port Door Actuator Fails to Release or Freezes Shut in Winter?

The EV9's motorized charge port door is a recurring owner complaint in two distinct failure modes. Electrically, the release actuator does not wake with the vehicle — the door will not pop when pushed or when commanded from the fob or screen, and owners sometimes hear the motor r… Repairs typically run $0-$500. Severity: medium.

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 #24V40000004/06/2024

PARKING BRAKE:ELECTRICAL:CONTROL MODULE:SOFTWARE

Kia America, Inc. (Kia) is recalling certain 2024 EV9 vehicles. A software error may cause the remote smart parking assist feature, which allows the operator to remotely move the vehicle, to miscalculate stopping distances.

Campaign #24V69300017/09/2024

ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

Kia America, Inc. (Kia) is recalling certain 2024-2025 EV9 vehicles. Due to a software error, the instrument panel screen may fail. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 101, "Controls and Displays."

Campaign #24V75700010/10/2024

+ 5 more recalls. Check all on NHTSA.gov

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

What is the 2024-2026 Kia EV9 12V Auxiliary Battery Repeatedly Drains Flat From Parasitic Module Wake - Vehicle Will Not Enter Ready Mode?

EV9 owners report the 12V auxiliary battery going flat repeatedly while the high-voltage pack is nearly full, leaving the vehicle completely dead - doors, screens and the start button unresponsive, and no way to enter Ready mode no matter how much range is showing. NHTSA has 6 lo… Repairs typically run $0-$350. Severity: medium.

What is the 2024-2026 Kia EV9 Highway Driving Assist 2 Lane Centering Oscillates Side-to-Side (Ping-Ponging) as Lane Following Assist Drops Out?

EV9 owners using Highway Driving Assist 2 report the vehicle wandering rhythmically from one lane edge to the other instead of tracking the lane center, a behaviour owners call ping-ponging. The pattern described is Lane Following Assist going dormant while the camera still sees… Repairs typically run $0-$400. Severity: medium.

What is the 2024-2026 Kia EV9 Software Update and Infotainment Issues?

As a new electric vehicle, the Kia EV9 has experienced typical first-generation software issues including infotainment freezes, occasional display glitches, OTA update failures, and EV charging session interruptions. The dual-screen display setup occasionally desynchronizes, and… Repairs typically run $0-$0. Severity: low.

What is the 2024-2026 Kia EV9 Power Second-Row Seats Lose Stored Limit Position - One-Touch Third-Row Access and Cargo Fold Buttons Stop Working?

On EV9s equipped with power second-row seats and the one-touch easy-entry function, the seat control module loses its stored 'seat limit position' parameter. Once that happens the third-row easy-access button on the seat shoulder stops responding entirely, and the second-row fold… Repairs typically run $0-$250. Severity: low.