Allison Transmission (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.
Allison Transmission – Loss of Drive from Fractured Pressure Switch
| Report Received Date | 08/20/2018 |
| NHTSA ID | 18E085000 |
| 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. |
| Recall Code | N/A |
| Potentially Affected | 592 |
| Fire Risk When Parked | No |
| Do Not Drive | No |
| Recall Link | Go to Recall (https://www.nhtsa.gov/recalls?nhtsaId=18E085000) |
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