ACTUATORS STOPPED FUNCTIONING PROPERLY TO CONTROL A/C AND HEAT IN VEHICLE WHEN TURNED ON. IF A/C IS TURNED ON, IT MAY RUN FOR AWHILE THEN TURN TO HEATING CYCLE ON ONE SIDE OF THE VEHICLE OR THE OTHER. THIS HAPPENS WHETHER THE VEHICLE IS IN MOTION OR NOT. IF HEAT IS CALLED FOR IN WINTER, I.E. TO DEFROST WINDOWS, THE HEAT MAY OR …
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ACTUATORS STOPPED FUNCTIONING PROPERLY TO CONTROL A/C AND HEAT IN VEHICLE WHEN TURNED ON. IF A/C IS TURNED ON, IT MAY RUN FOR AWHILE THEN TURN TO HEATING CYCLE ON ONE SIDE OF THE VEHICLE OR THE OTHER. THIS HAPPENS WHETHER THE VEHICLE IS IN MOTION OR NOT. IF HEAT IS CALLED FOR IN WINTER, I.E. TO DEFROST WINDOWS, THE HEAT MAY OR MAY NOT RUN OR IF RUNNING MAY TURN TO A/C. MANY TIMES IN WINTER THE HEAT TURNS TO A/C AND THERE IS NO HEAT ENTERING THE VEHICLE. NOTED THERE WERE NUMEROUS GMC VEHICLES WITH THE SAME ISSUE AS LATE AS 2015 WHEN LOOKING ON THE INTERNET.
NHTSA ODI #11063006
105,000 miles · Aug 11, 2015
Unknown Or Other
I NOTICED THAT THE CAR WAS MAKING A RATTLING SOUND. AT LOW SPEEDS YOU CAN HEAR IT AND SOMETIMES WHEN IT IS IDLING. SEEMS TO COME FROM THE EXHAUST NEXT TO THE GAS TANK.
NHTSA ODI #10747974
84,000 miles · Mar 22, 2010
Unknown Or OtherVehicle Speed Control
2004 GMC YUKON. SPEEDOMETER MALFUNCTIONS. SPEEDOMETER ERRATIC. READS UP TO 120 MILES PER HOUR AND VEHICLE TRAVELING AT 55 MPH BY GPS TRACKING DEVICE. VEHICLE HAS APPROX. 85K MILES.*DT
ON CERTAIN CREW CAB PICKUP TRUCKS AND SPORT UTILITY VEHICLES, THE 2ND ROW CENTER OCCUPANT SEAT BELT ROUTING MAY MAKE IT DIFFICULT TO POSITION THE LAP PORTION OF THE SAFETY BELT LOW AROUND THE HIPS OF OCCUPANTS, ESPECIALLY SMALLER OCCUPANTS, SEATED IN THIS POSITION. APPROPRIATE USE OF A CHILD SEAT OR BOOSTER SEAT, AS RECOMMENDED FOR SMALL CHILDREN, DOES IMPROVE THE FIT CONDITION FOR THIS USER GROUP. IN ADDITION TO INSTRUCTIONS ON PROPER INFANT AND YOUNG CHILD RESTRAINT (WITH CHILD SEATS OR BOOSTERS), SPECIAL VERBIAGE FOR RESTRAINING OLDER CHILD IS INCLUDED IN THE OWNER'S MANUAL. ALSO, THE SUGGESTED SEAT BELT FIT/ROUTING FOR ADULTS, IRRESPECTIVE OF SEATING POSITION, IS DESCRIBED IN THE OWNER'S MANUAL TEXT.
Consequence & remedy
Consequence: A LAP PORTION OF THE SEAT BELT ROUTING THAT IS NOT LOW AND SNUG ON THE HIPS CAN ALLOW THE LAP BELT TO RIDE UP ON AN OCCUPANT'S ABDOMEN INSTEAD OF FITTING LOW AROUND THEIR HIPBONES, AND THEREFORE, CAN EXPOSE THEM TO MORE RISK OF ABDOMINAL AND INTERNAL ORGAN INJURY.
Remedy: DEALERS WILL CUT OPEN THE GUIDE LOOP, REMOVE A PORTION OF THE LOOP, AND THEN THE REMAINING TWO SIDES SHOULD BE FOLDED OVER AND SECURED WITH A RETAINER FREE OF CHARGE. THE RECALL BEGAN ON JULY 21, 2005. OWNERS MAY CONTACT CADILLAC AT 1-866-982-2339, CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463, OR HUMMER AT 1-800-732-5493.
CERTAIN SPORT UTILITY VEHICLES, PICKUP TRUCKS, AND PASSENGER VANS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 135, ?PASSENGER CAR BRAKE SYSTEMS.? SOME OF THESE VEHICLES WERE PRODUCED WITH AN OUT-OF-SPECIFICATION BRAKE HYDRO-BOOST HOUSING RELIEF VALVE BORE.
Consequence & remedy
Consequence: CONSEQUENTLY, THE VALVE O-RING SEAL MAY FRACTURE. STEERING EFFORTS MAY BE SLIGHTLY INCREASED WHILE BRAKING OR PARKING. UNDER CERTAIN DRIVING CONDITIONS, A FRACTURED SEAL MAY REQUIRE A SLIGHT INCREASE IN THE APPLIED BRAKE PEDAL EFFORT TO ACHIEVE THE SAME VEHICLE DECELERATION RATE AS PRIOR TO THE SEAT FRACTURE.
Remedy: DEALERS ARE TO REPLACE THE HYDRO-BOOST RELIEF VALVE. THE RECALL BEGAN ON JUNE 18, 2004. OWNERS SHOULD CONTACT CADILLAC AT 1-866-982-2339; CHEVROLET AT 1-800-630-2438; GMC AT 1-866-996-9463; OR HUMMER AT 1-866-486-6376.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
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