Allison Transmission, Inc.: Safety Recalls in 2018

Updated on March 19, 2026.

There was 1 safety recall made by Allison Transmission, Inc. in 2018. See the detail of the recall below.

You can also see similar information for other manufacturers.

Data Source: NHTSA.

See this for other years:

August 20, 2018

(Campaign #: N/A)

Loss of Drive from Fractured Pressure Switch

Allison Transmission, Inc. (Allison) is recalling certain H 50 EP, H 40 EP, H 50 Cert, and H 40 Cert Drive Units. The pressure switches on these Drive Units may fail, possibly resulting in a loss of drive.

NHTSA ID: 18E085000

Component: POWER TRAIN

# of Units Affected: 592

Consequence Summary:

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

Corrective Action:

Allison will notify the vehicle manufacturers that purchased the affected transmissions, and dealers will replace the C1 and C2 pressure switches, free of charge. The recall began September 14, 2018. Owners may contact Allison customer service at 1-800-252-5283.

Park Outside Advisory: No

Do not Drive Advisory: No

Completion Rate (%): 4.39

View Full Recall Details