PROTERRA 2017 PROTERRA CATALYST Recall
Check Your Product
According to the National Highway Traffic Safety Administration (NHTSA)
Product
2017 PROTERRA CATALYST
Brand
PROTERRA
Lot Codes / Batch Numbers
Not specified in NHTSA notice. Check official source for details.
Products Sold
Model Year 2017
Proterra is recalling certain 2017 PROTERRA CATALYST vehicles due to service brakes, air:disc:caliper issues. Breakage of the guide pin can cause loss of braking ability or loss of tire pressure, increasing the risk of a crash..
Summary derived from NHTSA notice
Reason for Recall
As stated by NHTSA
Proterra is recalling certain 2016-2017 Proterra Catalyst 40 transit buses equipped with axles with radial air disk brakes. Surface roughness of a guide pin in the radial brake calipers may cause the brake carriage guide pin support bolt to break.
Reported concern (NHTSA)
Breakage of the guide pin can cause loss of braking ability or loss of tire pressure, increasing the risk of a crash.
Recommended Action
Per NHTSA guidance
Proterra will notify owners and have them replace the calipers on the affected axles, free of charge. Owners may contact Proterra customer service at 1-864-438-0000.
Verify this information on the official source
For complete details and official instructions, check the National Highway Traffic Safety Administration (NHTSA) directly.
View official NHTSA recall noticePage updated: Jan 10, 2026