2015 Mack Granite (gu), 2015 Mack Pinnacle (cxu) Recall: Affected vehicles contain an incorrectly wired Automatic Shut-down…
NHTSA campaign 14V738000 · Engine · filed Nov 20, 2014 · verified Jul 30, 2026
The defect
Mack Trucks, Inc. (Mack) is recalling certain model year 2015 CXU and GU trucks manufactured January 1, 2014, to August 20, 2014. The affected vehicles contain an incorrectly wired Automatic Shut-down Protection System, which may not operate as expected.
The risk
If the Automatic Shut-down Protection System does not operate as expected, the operator may be unable to control the increase in the engines rpms, increasing the risk of engine failure and vehicle fire.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Mack will notify owners, and dealers will inspect the system for correct operation and repair if necessary, free of charge. The recall began on January 16, 2015. Owners may contact Mack customer service at 1-610-709-2131. Mack's number for this recall is SC0386.
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
| Make | Model | Model years |
|---|---|---|
| Mack | Granite (gu) | 2015 |
| Mack | Pinnacle (cxu) | 2015 |
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Other campaigns involving Mack vehicles
Source: NHTSA recall database, campaign 14V738000 (manufacturer number SC0386). Data last verified Jul 30, 2026.