NHTSA recall 20V588000
A recall listed here may apply to a vehicle of this year, make and model. Only the manufacturer can say whether it applies to one vehicle: check the VIN with the official lookups.
| Published by | NHTSA (United States) |
|---|---|
| Campaign number | 20V588000 |
| Manufacturer's number | A202307260 |
| Manufacturer | General Motors LLC |
| Reported | 2020-09-24 |
| Owners notified | 2020-12-09 |
| Component | SERVICE BRAKES |
| Units potentially affected | 3677 |
| Part numbers | 84774537, 84784557, 84871303, 84722407, 6000426, 60004350 |
| Report | Annual report 3, for 2024 quarter 4 to 2025 quarter 3 |
|---|---|
| Filed with NHTSA | 2025-10-06 |
| Vehicles in the campaign | 3677 |
| Reported remedied | 3584 (97%) |
| Reported unreachable | 1 |
| Reported removed | 1 |
These are the manufacturer's totals for the whole campaign at the end of 2025 quarter 3, as filed with NHTSA. They do not say whether one vehicle has been remedied: check the VIN with the official lookups. The reports are from data as of 2026-10-19.
What is wrong
General Motors LLC (GM) is recalling certain 2020 Chevrolet Corvette and Cadillac CT4, CT5 and XT4, 2021 Chevrolet Trailblazer, and 2020-2021 Buick Encore GX vehicles. Sensor connection contamination in the electronic brake boost system may cause an interruption of communication between the sensor and the brake boost system.
What can happen
If communication with the sensor is interrupted, the electronic brake boost assist could be lost. Extra pedal force will be required to slow and stop the vehicle, increasing the risk of a crash.
The remedy
GM will notify owners, and dealers will replace the electronic brake boost module, free of charge. The recall began December 9, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is A202307260.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
| 2020 BUICK ENCORE GX | |
|---|---|
| 2021 BUICK ENCORE GX | |
| 2020 CADILLAC CT4 | |
| 2020 CADILLAC CT5 | |
| 2020 CADILLAC XT4 | |
| 2020 CHEVROLET CORVETTE | |
| 2021 CHEVROLET TRAILBLAZER |
A vehicle with no link is not in this site's catalog, which covers cars, multipurpose vehicles and trucks by model year. The campaign is from data as of 2026-10-19.
Bulletins for the same vehicles and component
| 25-NA-065 | 2025-04-24. Service bulletin. This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis. |
|---|---|
| 21-NA-043 | 2025-02-12. Service bulletin. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer. |
| 17-NA-271 | 2024-12-19. Service bulletin. This service bulletin provides a procedure to clean the back side of the rims and rotors and to correct the customer concern of wheel clicking. |
| 24-NA-072 | 2024-12-10. Service bulletin. This technical bulletin provides a procedure a squeal noise heard from the front of the vehicle during light brake pedal application. |
| 21-NA-043 | 2024-12-10. Service bulletin. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer. |
| 24-NA-072 | 2024-12-04. Service bulletin. This technical bulletin provides a procedure a squeal noise heard from the front of the vehicle during light brake pedal application. |
| 24-NA-072 | 2024-11-21. Service bulletin. This technical bulletin provides a procedure a squeal noise heard from the front of the vehicle during light brake pedal application. |
| 24-NA-031 | 2024-11-16. Service bulletin. This service bulletin provides information for having brake pulsation and/or repeat brake pulsation. |
| 22-NA-026 | 2024-11-15. Service bulletin. This service bulletin provides information for dealers/technicians on Brake Pulsation, Noise and/or Visible Pitting Condition to Brake Rotor Surface. |
| 17-NA-239 | 2024-11-14. Service bulletin. This bulletin provides information on possible normal brake drag caused by the vehicle parked for an extended period of time. |
A bulletin is the manufacturer's note to its dealers. It is not part of this recall.