Proterra Operating Company – Missing Air Brake Supply Reservoir / FMVSS 121

Proterra , (Proterra) is recalling certain 2015-2018 Catalyst 40 transit buses. The affected vehicles lack a Graham White air brake supply reservoir, possibly resulting in long term moisture build up in the air brake system. As a result, these vehicles fail to comply with Federal Motor Vehicle Safety Standard (FMVSS) number 121, “Air Brake Systems.”


Report Received Date 01/29/2019
NHTSA ID 19V061000
Consequence Summary Built-up of moisture in the air brake system may lead to brake failure, increasing the risk of crash.
Corrective Action Proterra will notify owners, and dealers will install a supply reservoir with a drain between the air dryer and the air supply manifold, free of charge. The recall is expected to begin March 28, 2019. Owners may contact Proterra customer service at 1-864-438-0000.
Recall Code NR (Not Reported)
Potentially Affected 55
Fire Risk When Parked No
Do Not Drive No
Recall Link Go to Recall (https://www.nhtsa.gov/recalls?nhtsaId=19V061000)