CR4435 - Loss of Drive from Fractured Pressure Switch - 2017 Nova Bus LFS Hybrid & LFS Arctic Hybrid Transit Buses

NHTSA Campaign Number: 18V670
Manufacturer Nova Bus
Components POWER TRAIN
Potential Number of Units Affected 2


Loss of Drive from Fractured Pressure Switch

A loss of drive can disable the vehicle unexpectedly, increasing the risk of a crash.



Nova Bus (Nova) is recalling certain 2017 Nova Bus LFS Hybrid and LFS Arctic Hybrid transit buses equipped with certain Allison transmission hybrid drive units. The pressure switches on these drive units may fail, possibly resulting in a loss of drive.



Nova will notify owners, and Allison Transmission service centers will replace the C1 and C2 pressure switches, free of charge. The recall is expected to begin November 20, 2018. Owners may contact Nova customer service at 1-800-350-6682. Nova's number for this recall is CR4435.



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


Download (PDF, 317KB)

Recall Acknowledgement

October 18, 2018

Download (PDF, 240KB)

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Last update on 2020-04-10 / Affiliate links / Images from Amazon Product Advertising API

Last update on 2020-04-10 / Affiliate links / Images from Amazon Product Advertising API

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