NHTSA Recall 19V402000: Check valve (service brakes)
Proterra Inc. reported this safety recall to NHTSA on , covering an estimated 147 vehicles. It affects 2017–2018 Proterra Catalyst.
| NHTSA campaign | 19V402000 |
|---|---|
| Component | SERVICE BRAKES, AIR › SUPPLY › CHECK VALVE |
| Report received | May 30, 2019 |
| Owner notification | July 26, 2019 |
| Initiated by | Manufacturer |
Defect
Proterra, Inc. (Proterra) is recalling certain 2017-2018 Catalyst buses. The vehicles are equipped with swivel valves that may insufficiently protect the air brake system from an air leak between the service reservoir and the source of air pressure. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems."
Safety risk
If the swivel valves are unable to protect the air brake system against loss of air pressure, this may lead to service brake failure and the possibility for the uncontrolled application of the safety brake. Either condition increases the risk of crash.
Remedy
Proterra will notify owners, and will replace the swivel valve with a check valve that is sufficient to protect the air brake system, free of charge. The recall began July 26, 2019. Owners may contact Proterra customer service at 1-864-438-0000.
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.
Vehicles covered by recall 19V402000
Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.