Lexus GS430: problems, complaints, bulletins
Summary for the Lexus GS430 across 8 model years: 27 owner complaints and 0 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
What fails most often
- 1 Service brakes 22% of all complaints
- 2 Vehicle speed control 22% of all complaints
- 3 Air bags 11% of all complaints
- 4 Electronic stability control 11% of all complaints
- 5 Steering 11% of all complaints
- 6 Suspension 11% of all complaints
- 7 Electrical system 7% of all complaints
- 8 Structure 7% of all complaints
- Service brakes: 6 complaints (22% of all), 1 of them with a crash reported by the owner.
- Vehicle speed control: 6 complaints (22% of all), 4 of them with a crash reported by the owner.
- Air bags: 3 complaints (11% of all), 2 of them with a crash reported by the owner.
- Electronic stability control: 3 complaints (11% of all).
- Steering: 3 complaints (11% of all), 1 of them with a crash reported by the owner.
Symptoms owners describe
How many of the 27 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) |
|---|---|---|---|
| Service brakes | 6 | 1 | 0 |
| Vehicle speed control | 6 | 4 | 0 |
| Air bags | 3 | 2 | 0 |
| Electronic stability control | 3 | 0 | 0 |
| Steering | 3 | 1 | 0 |
| Suspension | 3 | 0 | 0 |
| Electrical system | 2 | 0 | 0 |
| Structure | 2 | 0 | 0 |
| Engine | 1 | 0 | 0 |
| Engine and cooling | 1 | 0 | 0 |
| Latches, locks, linkages | 1 | 0 | 0 |
| Seat belts | 1 | 0 | 0 |
| Tires | 1 | 1 | 0 |
| Wheels | 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.
Tl* the contact owns a 2006 lexus gx43, equipped with nexen tires n5000 245/40/r18 xl. When the traffic light changed to green and traveling approximately 15 mph, the passenger side front tire blew up. The contact lost control of the vehicle and went over a sidewalk and damaged the rear passenger side tire.
Tl* the contact owned a 2006 lexus gs430. While driving approximately 5 mph, the contact drove through a small puddle of water. The vehicle accelerated and the contact was unable to control the steering. The brake pedal was stiff and the contact could not steer or brake to control the vehicle.
Tl contact owns a 2003 lexus gs430. While driving 2 mph attempting to apply the brakes, the vehicle suddenly accelerated without warning causing the vehicle to crash into a cement pole. The front fender and hood of the vehicle were damaged.
The lexus finally came to a stop when they hit the car infront of them and the airbags did not deploy. My father is having back problems and my mother's leg is bruised, luckily my daughter is unharmed. The driver of the other vehicle is also injured.
2005 lexus gs430,2008-05-05, in the highway, the engine computer malfunction, I stepped on brakes, but the accelerator 100% cannot switch off, has the driving record material to confirm that (lexus provides freeze material), has the another gs430 same accelerator in the same year out of control, the driving death,…
After the vehicle was driven and parked for approximately 10-15 minutes, the contact noticed flames underneath the hood. The fire was extinguished by a friend. The fire department was not notified. The contact stated that the fire may have originated from the battery compartment. The vehicle was not diagnosed.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Vehicle speed control. Accelerator pedal, cruise control, throttle codes.
- Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
- Electronic stability control. ABS/ESC sensors, steering angle, codes after suspension repair.
Other models of this make
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 2026-11-05.