Allison Transmission, Inc. recalls Allison Transmission 6th Gen Tcm

Recall date

July 24, 2023

Source

National Highway Traffic Safety Administration (NHTSA)

Recall number

23E056000

Brand / firm

Allison Transmission

Sold / distributed

Potentially affected: 584 units

Why it was recalled

Failure to achieve 4th gear lock up may prevent the vehicle from achieving the full sequence needed to pump water, which can increase the risk of injury in an emergency.

What was recalled

Allison Transmission, Inc. (ATI) is recalling certain Emergency Vehicle Series 6th Generation Transmission Control Modules (TCM). The transmission control module (TCM) may fail to achieve the 4th gear transmission lockup needed to initiate the water pump.

What to do

Vehicle manufacturers will update the TCM software, free of charge. ATI notified the affected vehicle manufacturers on July 31, 2023. Owners may contact ATI customer service at 1-317-242-5000.. Follow the official notice for full instructions.