The 2001 GMC Sierra has 3 recalls, the most serious affecting trucks with the 8.1L V8 engine, where the crankshaft position sensor can fail and cause the engine to stall or shut down completely and refuse to restart.
This recall only affects Sierra models equipped with the 8.1L V8. When the sensor begins to fail intermittently, the engine may run rough and the service engine soon light may come on. A complete failure means the engine stops and will not restart at all, leaving the truck stranded and raising the risk of a crash if it happens while moving. On the brake side, certain 2500 and 3500 models with the 6.6L diesel engine have a warning light in the instrument cluster that may not illuminate when brake fluid drops to a low level, meaning a driver could lose partial braking capability without any visual alert inside the cab. There is also a label compliance issue on some trucks where the tire description and recommended inflation pressures printed on the certification and tire pressure label may not reflect the correct specifications for the vehicle.
At a glance
What can fail
The crankshaft position sensor may work on and off or stop working entirely. This can cause the check engine light to come on, rough running, engine stalling, and difficulty restarting.
What the fix does
The crankshaft position sensor will be replaced at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
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At a glance
What can fail
The brake warning light may not turn on when brake fluid is low. Low brake fluid could also reduce braking power and prevent the backup brake system from working properly.
What the fix does
Dealers will relocate a wire connection in the underhood electrical center to fix the warning light and brake system function.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The tire information label may not show correct tire specifications or pressure settings required by safety standards.
What the fix does
A new, corrected tire information label will be installed on your vehicle.
Summarized — see the official notice for exact wording, dates, and contacts.
