AI Damage2024 Toyota BZ4X: common problems
Owners of the 2024 Toyota BZ4X filed 24 complaints with NHTSA, most often about electrical system and structure. The maker issued 104 service bulletins for this year. We found 4 repair videos on YouTube. Details by component below, with sources.
Key figures
- Owner complaints
- 24
- involving a crash
- 4
- Technical service bulletins (TSB)
- 104
- YouTube repair videos
- 4
What fails most often
- 1 Electrical system 42% of all complaints
- 2 Structure 21% of all complaints
- 3 Lane departure 13% of all complaints
- 4 Service brakes 13% of all complaints
- 5 Visibility 13% of all complaints
- 6 Wheels 8% of all complaints
- 7 Forward collision avoidance 8% of all complaints
- 8 Tires 4% of all complaints
- Electrical system: 10 complaints (42% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 26.
- Structure: 5 complaints (21% of all); manufacturer bulletins for this component: 23.
- Lane departure: 3 complaints (13% of all), 1 of them with a crash reported by the owner.
- Service brakes: 3 complaints (13% of all), 1 of them with a crash reported by the owner.
- Visibility: 3 complaints (13% of all).
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- electric
- automatic, 1-speed
Drive: FWD, AWD
Symptoms owners describe
How many of the 24 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 10 | 1 | 26 |
| Structure | 5 | 0 | 23 |
| Lane departure | 3 | 1 | 0 |
| Service brakes | 3 | 1 | 0 |
| Visibility | 3 | 0 | 0 |
| Wheels | 2 | 1 | 2 |
| Forward collision avoidance | 2 | 0 | 0 |
| Tires | 1 | 0 | 1 |
| Air bags | 1 | 1 | 0 |
| Fuel/propulsion system | 1 | 0 | 0 |
| Powertrain | 1 | 0 | 0 |
| Seats | 1 | 0 | 0 |
| Steering | 1 | 1 | 0 |
| Vehicle speed control | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Driver sustained severe hand injuries due to airbag deployment while the hand was on the horn pad. Possible over-aggressive deployment or module failure. Incident occurred on [XXX], while driving a 2024 Toyota BZ4X (VIN: [XXX] ).
Steering system, potentially related to electric power steering (EPS) or driver-assist systems (lane keeping or steering assist). While completing a routine right-hand turn, my husband began to straighten the steering wheel when the steering system suddenly and sharply turned further right without any driver input.
I was driving during heavy rain when I heard and felt a big thump. I wasn't sure what happened as I did not hit anything in the road. I was in my neighborhood driving at low speeds (<30mph). When I got home, I realized my fender liners and lower splash guard of my car were missing.
The car show on the screen a message in regards to the Adaptative Cruise Control Malfunction and it’s showing an orange sign light.. Another problem it’s in regards the AC.. it’s not working
There were no warning lights. The failure had occurred 3 times. When attempting to start the vehicle one day, the vehicle failed to start. The tow company came and provided a jump-start, and then advised the contact to drive carefully, but if it failed to go in reverse.
The HVAC system, specifically the electric A/C compressor, has failed. The system produces a loud grinding/buzzing noise and has been diagnosed by authorized Toyota dealerships as requiring full compressor replacement. The vehicle is available for inspection upon request.
I leased a toyota bz4x the parking brake lights and other lights come on and off while I am driving and fob is not touched. I took car in to be service for regular maintenance and was told I had to pay $295 and I am under warranty. I was sold the car brand new and I don't think it is.
On multiple occasions, the brake pedal became stiff and unresponsive while driving, and the parking brake system failed to engage properly. In addition, the ignition system often failed to start, even when the battery and all power indicators appeared normal.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 1,179 of 2,102 model years in the NHTSA data (among the 44% least complained about).
On average one model year of the BZ4X has 12 complaints (3 years in the data). This year has 24, above average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
- Lane departure. Windshield camera: calibration after windshield replacement.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Some 2023 – 2025 model year bZ4X vehicles may exhibit a creaking noise coming from the strut mounting…
Some 2023 – 2025 model year bZ4X vehicles may exhibit a creaking noise coming from the strut mounting bearing of the front suspension when turning. A new part has been developed to address this condition.
- Some Customers for the above vehicles may have complaint of the following
unable to charge the vehicle using the supplied level 1 or 2 charger. Additionally, most will indicate one or more of the LEDs on the charger will illuminate at the time of no charge. Charging at other stations is…
- Some Customers for the listed vehicles may have complaint of the following
unable to charge the vehicle using the supplied level 1 or 2 charger. Additionally, most will indicate one or more of the LEDs on the charger will illuminate at the time of no charge. Charging at other stations is…
- Toyota is conducting a noncompliance equipment recall involving certain Rear Combination Lamp service…
Toyota is conducting a noncompliance equipment recall involving certain Rear Combination Lamp service parts for Toyota bZ4X sold from December 2023 to November 2025 in the U.S. Approximately 80 service parts are…
- Some 2005 – 2026 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a…
Some 2005 – 2026 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition…
- Model Year 2023-2025 bZ4X vehicles have charge ports that use the CCS standard
This program is for lessees and owners of these vehicles to receive 1 complimentary NACS Charging Adapter per vehicle to enable charging at stations using the NACS standard.
- Some ECUs can set a DTC that is common with other ECUs
This can lead to accidental use of the wrong repair manual when diagnosing these type of DTCs.
- The air conditioning dye injection tool kit has been developed to aid in identifying the location of air…
The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service Bulletin aid in locating, inspecting, and…
- To assist with the early detection and early resolution of audio related concerns you may be asked to…
To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the…
- Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the ECU
Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Global Techstream+ (GTS+) ECU flash reprogramming…
- The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master…
The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys will be erased and can never be reused…
- OBSOLETE NOTICE February 11, 2025
This bulletin is now obsolete. Please see T-SB-0021-25.
NHTSA lists 104 bulletins for this year; the 12 newest are shown here.
Repair videos
We do not copy videos: these are YouTube links credited to their authors. Amounts are as stated by the author and not verified by us.
Other years of this model
Questions and answers
What are the most common problems with the 2024 Toyota BZ4X?
Owner complaints to NHTSA most often mention: electrical system, structure, lane departure. Total complaints: 24. The most frequent symptoms in complaint texts: warning lights, check engine (25%), rollaway, parking brake (17%), A/C or heater (13%).
How many service bulletins (TSB) were issued for the 2024 Toyota BZ4X?
NHTSA lists 104 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2024 Toyota BZ4X from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2024 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.