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Manufacturer recall number

Proterra recall SC-22-158

Proterra calls it SC-22-158. NHTSA filed it as campaign 22V855000 on Nov 18, 2022: parking brake on the 2019–2022 Proterra Catalyst and 1 other Proterra model, 386 vehicles potentially affected. One recall, two numbers — the dealer quotes the manufacturer’s, the federal record carries NHTSA’s.

What NHTSA has under this number

Source: 49 CFR Part 573 filings
NHTSA campaignVehiclesComponentFiledAffectedSeverity
22V8550002019–2022 Proterra Catalyst and 1 other Proterra modelParking BrakeNov 18, 2022386high
Problem Proterra Operating Company, Inc. (Proterra) is recalling certain 2020-2021 Catalyst and 2019-2022 ZX5 transit buses. Back pressure in the shared air exhaust for the pneumatic ride height system and parking brake control valve may engage the parking brake while the vehicle is in motion. Risk Unintentional engagement of the parking brake increases the risk of a crash. Fix Proterra will install a redesigned air circuit, free of charge. Owner notification letters were mailed on December 21, 2022. Owners may contact Proterra's customer service at 1-864-438-0000.

The manufacturer’s own words as filed for 22V855000. Every model year it covers, the build window and the filed PDFs →

Two numbers, one recall

Every safety recall carries two identifiers. SC-22-158 is the number Proterra assigned in its own system: it is what appears on the owner letter, on the dealer’s service screen and on the repair order. 22V855000 is the number NHTSA filed the same recall under when the manufacturer reported it, and it is the one every federal record, this site included, is keyed on.

The repair is free by federal law for vehicles up to fifteen years old. Whether one particular vehicle is included is settled by its VIN against the manufacturer’s build list, not by its model year.

Check one specific vehicle

Both lookups check a VIN against the manufacturer’s own list and say whether the repair is still outstanding on that vehicle.

Common questions

Source: NHTSA, 49 CFR Part 573

Is SC-22-158 the same recall as 22V855000?

Yes. SC-22-158 is Proterra’s own number for it; 22V855000 is NHTSA’s. One recall, two references.

Which vehicles does SC-22-158 cover?

2019–2022 Proterra Catalyst and 1 other Proterra model, 386 vehicles by the manufacturer’s count. A recall covers a build range, so the VIN decides whether one particular vehicle is in it.

Does the SC-22-158 repair cost anything?

No. The manufacturer must remedy a safety defect at no charge for vehicles up to 15 years old from first sale.