KNOWN FAULTS · Toyota

Toyota bZ4X common problems.

2022–2026 · Electric

Sources are not verified in real time and no entry confirms that your car is affected.

2 known faults with sources

Engines: bZ4X (Electric)

Applies if: Toyota USA tech tip for all its models: it applies if the judder began after wheels, pads or discs were removed or changed.

Brake judder from wheel nuts over-tightened or tightened unevenly (Toyota tech tip)Brakes

Engine / equipment: Any Toyota: it depends on how the wheels are tightened
Period mentioned: 2016 tech tip for all its models
Symptoms: Vibration in the steering wheel and the pedal when braking, even gently and at any speed, often shortly after wheels, pads or discs were changed.
Possible cause described: Toyota points out in a tech tip that if the wheel nuts are over-tightened or tightened unevenly (a single one is enough), the brake disc is left with runout and brake judder appears. It happens above all when they are run fully home with an impact gun instead of a torque wrench in a star pattern.
Check for the garage: Ask the garage to loosen and re-tighten the nuts with a torque wrench, to the manual's torque and in a star pattern, and to measure whether the discs have been left warped; if so, they will need skimming or replacing.
Cost cited in the source: No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.

Engines: bZ4X (Electric)

Applies if: Cars from the first months of production (2022); confirm by VIN.

bZ4X hub bolts that can loosenSuspension and steering

Engine / equipment: Toyota bZ4X electric (also Subaru Solterra)
Period mentioned: 2022
Symptoms: Noises or vibration from a wheel and, in the worst case, the wheel coming off the car, even at low mileage.
Possible cause described: The hub bolts could loosen. Toyota recalled the first cars (NHTSA 22V-444, June 2022), asked owners not to drive them until repaired, and fitted new bolts with washers and improved wheels.
Check for the garage: Check by VIN that the recall was done; with wheel noise or vibration, stop.
Cost cited in the source: Free under the recall.A rough figure from the original database, not an up-to-date quote.