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NHTSA Campaign 23E079000

POWER TRAIN:DRIVELINE:DRIVESHAFT

Issued by Allison Transmission, Inc. · Reported Oct 11, 2023 · 8,498 vehicles affected

What's wrong

Allison Transmission, Inc. (ATI) is recalling certain models B3400xFE_R and B400R, with part numbers B3400xFE_R and B400R. The transmission yoke may separate, resulting in driveshaft separation and a sudden loss of drive power.

Consequence

A sudden loss of drive power can increase the risk of a crash. Additionally, a disabled bus may require an evacuation procedure in an uncontrolled traffic situation, increasing the risk of injury to passengers.

Remedy

Dealers will inspect the output yoke bolts, and if necessary, tighten loose output yoke bolts, free of charge. Owner notification letters were mailed December 9, 2023. Owners may contact ATI customer service at 1-317-242-5000. ATI's number for this recall is 2023FA04.

Vehicles affected by this recall

Make Model Year Units
ALLISON TRANSMISSION, INC B3400 8,498
ALLISON TRANSMISSION, INC B400 SERIES TRANSMISSION 8,498

Source: NHTSA Campaign 23E079000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.