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Nova Bus LFS Recall 18V670: Transit Bus Transmission May Fail, Causing Sudden Loss of Drive

NHTSA campaign 18V670, reported September 26, 2018, 2 vehicles potentially affected.

What this recall means for you

Certain 2017 transit buses with Allison hybrid drive units may have pressure switches that can fail. If a switch fails, the bus can lose drive unexpectedly and shut down while in operation, which increases the risk of a crash.

Owners will be notified by the manufacturer. Allison Transmission service centers will replace the C1 and C2 pressure switches at no cost to the owner. To check whether a bus is affected or to ask about the recall, contact Nova customer service at 1-800-350-6682 and reference recall CR4435. You can also check your vehicle identification number (VIN) for open recalls.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 18V670Nova Bus
Component
POWER TRAIN:AUTOMATIC TRANSMISSION
Problem
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.
Risk
A loss of drive can disable the vehicle unexpectedly, increasing the risk of a crash.
Remedy
Nova will notify owners, and Allison Transmission service centers will replace the C1 and C2 pressure switches, free of charge. The recall began October 5, 2018. Owners may contact Nova customer service at 1-800-350-6682. Nova's number for this recall is CR4435.
Notes
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 www.safercar.gov.

Affected vehicles

Nova Bus LFS2017
Nova Bus LFS Artic2017