1999-2006 GMC Sierra: Recall History

1999-00 Sierra: Clearance between front right-hand brake pipe and body cross sill could decrease and allow contact, which could result in damage and loss of brake fluid and pressure.

1999-02 Sierra: In environmentally corrosive areas of specified "salt belt" states, unwanted antilock braking activation may occur, causing increased stopping distance during low-speed brake application.

1999-04 Sierra: The tailgate support cables may corrode, resulting in the sudden loss of the tailgate. Dealers will inspect and replace affected parts.

1999-2005 Sierra w/manual shift and PBR or TRW parking-brake system: Friction linings may wear to an extent that makes the parking brake ineffective in holding the vehicle.

2000 Sierra: Hydraulic pump driveshaft may fracture, resulting in immediate loss of power-steering assist; same condition could produce loss of assist from hydro-boost power brakes after reserve pressure is depleted, but neither condition totally eliminates the ability to steer or slow the vehicle.

2000 Sierra w/4-wheel disc brakes: Out-of-spec spring clip in antilock brake system could allow motor bearing to become misaligned; eventually, ABS would be nonfunctional and dynamic-rear-proportioning system would become inoperative.

2001 Sierra with 8.1-liter V8 engine: The engine may run rough or stall, and may not restart, due to an intermittently-operating crankshaft position sensor. Dealers will replace the crankshaft position sensor.

2003-04 Sierra: Certain vehicles may have been produced with an out-of-specification brake relief valve, making steering difficult when braking. Dealers will inspect and replace affected parts.

2003-04 Sierra CNG: Only one seating position, the center rear, is equipped with a child restraint lower anchorage.

2003-05 Sierra: Seatbelt routing for second-row center occupant may make it difficult to position the lap portion of the belt low around the occupant's hips.

2004-05 Sierra w/Bosch hydro-boost braking: Hydraulic brake booster pressure accumulator may crack and separate during normal operating conditions, possibly issuing fragments and allowing fluid leakage.

2005 Sierra: Bolt that attaches intermediate steering shaft to steering gear may fracture, resulting in loss of steering.

2005 Sierra: During extreme steering maneuvers, power steering hose might fracture and leak fluid, leading to loss of steering assist and increase in steering effort; could also affect operation of the hydro-boost power brakes.

2005 Sierra: Under certain vehicle-starting conditions, shift-lever position indicator in instrument panel may not illuminate.

2005 Sierra Denali: Owner's manual may indicate incorrect seat locations with upper and lower child-restraint tether anchors, and also provide incorrect installation instructions.

2005 Sierra w/5.3-liter V8: Engine fuel rail crossover tube retainer screws may break, allowing fuel leakage and possible engine stalling.

2005 Sierra w/aftermarket leather seats: Testing has indicated that the aftermarket leather seat covers can cause the passenger sensing system to malfunction. If the passenger sensing system malfunctions, the front air bag on the passenger side may be disabled when it should be enabled, or enabled when it should be disabled. GM will purchase these vehicles for the full price paid for it (not exceeding the fair market value at the time it was bought), including taxes and fees, if the vehicle is returned to GM's possession by January 31, 2007. Through January 31, 2007, GM will also pay for the removal of any aftermarket accessories that may have been installed and return them to the customer.