2011 GMC Sierra 1500Service bulletins
2011 GMC Sierra 1500 Technical Service Bulletins
801 technical service bulletins (TSBs) are on record for the 2011 GMC Sierra 1500. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.
- 10034428Feb 1, 2010Fuel system. Chevrolet:gmc: engineering information-fuel tank pressure sensor, dtcs p0446, p0451 or p0454 set. Gmc engineering is attempting to determine the root cause of the above concern.
← All problems reported for the 2011 GMC Sierra 1500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.