The Recall Desk
Our severity:HighNHTSA·22E065000·Announced 2022-07-29

Proterra Recalls S1-15 Battery Packs Due to Unexpected Shutdown Risk

Proterra is recalling specific S1-15 battery packs because an insufficient connection may cause the battery management system to shut down unexpectedly, leading to a sudden loss of drive power.

What this means for you

Our assessment, not the agency’s: severity 3/5 (High).

Real risk of harm even if no illness or injury has been reported yet. Stop using the product and follow the agency's guidance.

Our severity reasoning: The recall involves a risk-of-harm product (sudden loss of drive power increasing crash risk) where no specific injuries or fatalities are reported in the source text, aligning with the 'High' severity criteria.

Plain-English summary

Proterra Operating Company, Inc. is recalling certain battery packs, model number S1-15, with part numbers 129-6202, 139-6181, and 163-3642. The recall involves an insufficient connection in the battery pack that may cause the battery management system to shut down unexpectedly.

An unexpected battery management system shut down can result in a sudden loss of drive power, which increases the risk of a crash. The source text does not specify the number of affected vehicles or the specific vehicle models involved.

Proterra will replace the battery pack free of charge. Owner notification letters were mailed on November 26, 2022. Owners may contact Proterra's customer service at 1-864-438-0000 or the NHTSA Vehicle Safety Hotline at 1-888-327-4236.

The recalled product

Product
ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY recall
Manufacturer
Proterra Operating Company, Inc.
Category
Vehicle — Electric Vehicle Battery
Hazard
Affected units
99

Distribution

Distributed nationwide across the United States.

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