GMC Sierra Complaints

15,732 consumer complaints on file.

#10622442August 15, 2014
SERVICE BRAKES
WHEN ATTEMPTING TO USE BRAKES AT HIGHWAY SPEEDS (70-75 MPH), PEDAL WENT IMMEDIATELY TO FLOOR WITH VERY LITTLE EFFORT. PEDAL HAD HELD FIRM MOMENTS BEFORE. NO REDUCTION IN SPEED FROM PUMPING PEDAL. NO WARNING OF MALFUNCTION UNTIL DANGER WAS IMMINENT. A CERTAIN CRASH WAS AVOIDED IF EVASIVE DRIVING WAS NOT IMPLEMENTED WITH A COMBINATION OF SHIFTING TO NEUTRAL, KICKING ON THE EMERGENCY BRAKE, AND SHIFTING TO THE BERM. STOPPING DISTANCE ESTIMATED TO BE AT LEAST A HALF MILE TO 3/4. VEHICLE SUFFERED MINOR FRONT END DAMAGE FROM USING THE BERM TO AVOID OTHER VEHICLES. UPON FURTHER INVESTIGATION, A HARD STEEL REAR BRAKE LINE ABOVE FRAME HAD FULLY RUSTED THROUGH. IT HAD COME APART WITH A LARGE WINDOW, RATHER THAN A SMALL PERFORATION WHICH WOULD HAVE ALLOWED SOME BRAKE MODULATION. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10622451August 15, 2014
ELECTRICAL SYSTEM, EXTERIOR LIGHTING
HEADLIGHTS ARE WEAK. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10622479August 15, 2014
ELECTRICAL SYSTEM
MY IGNITION CYLINDER IS BINDING BADLY AND IM CONCERNED THAT MY VEHICLE IS GOING TO HAVE THE SAME PROBLEMS AS OTHER GM VEHICLES. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10622507August 15, 2014
EXTERIOR LIGHTING
THE HEADLIGHT OUTPUT ON MY NEW 2014 GMC SIERRA IS SO POOR THAT I CANNOT DRIVE THE VEHICLE SAFELY AT NIGHT. IN FACT, I DO NOT DRIVE IT AT ALL UNLESS IT IS ABSOLUTELY NECESSARY. NOT ONLY ARE THE LIGHTS VERY DIM BUT THE SHAPE OF THE BEAM IS ALSO VERY POOR. WITH THE CURRENT OEM HEADLIGHT EQUIPMENT, THIS VEHICLE IS UNSAFE TO OPERATE AT NIGHT. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10622345August 14, 2014
AIR BAGS
TL* THE CONTACT OWNS A 2008 GMC SIERRA 1500. THE CONTACT STATED WHILE ATTEMPTING TO ACCELERATE FROM A COMPLETE STOP, ANOTHER VEHICLE CRASHED INTO THE VEHICLE AND THE AIR BAGS FAILED TO DEPLOY. THE FRONT DRIVER'S SIDE SEAT BELT BUCKLE RELEASED INDEPENDENTLY. A POLICE REPORT WAS FILED. THE CONTACT SUSTAINED A BROKEN RIB AND AN INJURY TO THE SHOULDER. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC AND REPAIRED FOR THE EXTERIOR DAMAGES. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 35,300.
Crash:
Yes
Fire:
No
Injuries:
1
Deaths:
0
#10622415August 14, 2014
AIR BAGS, STRUCTURE
THERE ARE CRACKS ON DRIVERS SIDE DASH & AROUND AIR BAG ON PASSENGER SIDE. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10622004August 13, 2014
SERVICE BRAKES
DEALER STATES THAT THE BRAKE MODULAR AND PLUG ARE NO GOOD. THE COST OF THE REPAIR WOULD BE $1200.00. THE SERVICE TRACTION CONTROL LIGHT WOULD COME ON. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10622157August 13, 2014
SERVICE BRAKES
WHILE DRIVING IN TOWN, I DEPRESSED THE BRAKE PEDAL TO SLOW FOR A STOP SIGN TRAVELING UNDER 25 MPH. THE PEDAL PRESSURE FELT FIRM/NORMAL FOR A BRIEF SECOND AND THEN WENT NEARLY TO THE FLOOR AND I WAS BARELY ABLE TO STOP. THE BRAKE LIGHT ON THE DASH DID NOT ILLUMINATE UNTIL APPROXIMATELY THE 10TH TIME I TRIED TO STOP. IF THERE HAD BEEN SOMEONE IN FRONT OF ME OR I WAS TRAVELING IN A HIGHER SPEED ZONE, I MOST CERTAINLY WOULD NOT HAVE STOPPED IN TIME. THE DIAGNOSIS IS THE REAR BRAKE LINE RUSTED THROUGH. I'VE BEEN TOLD BY SEVERAL MECHANICS THAT ALL THE BRAKE LINES WILL HAVE TO BE REPLACED AS THEY ARE ALL SO RUSTED NO ONE LINE CAN BE REPLACED WITHOUT DAMAGING THE REST OF THE LINES BECAUSE OF THEIR CLOSE PROXIMITY TO EACH OTHER. I CAN'T FIND ANYONE THAT WILL TAKE ON THE JOB. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10621613August 12, 2014
SERVICE BRAKES
BRAKES FAILED IN MY DRIVEWAY. BRAKE PEDAL WENT TO THE FLOOR WITH ALMOST NO RESISTANCE. FORTUNATELY I DIDN'T HIT ANYTHING. I INSPECTED BRAKE MASTER CYLINDER & FOUND ALL FLUID HAD LEAKED OUT, AREA UNDER IT WAS WET WITH FLUID, ALSO, THE BRAKE LINES UNDER THE CYLINDER LOOKED VERY RUSTED. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10621718August 12, 2014
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS
TL* THE CONTACT OWNS A 2003 GMC SIERRA. WHILE DRIVING APPROXIMATELY 30 MPH, THE BRAKE PEDAL SANK TO THE FLOORBOARD WHEN IT WAS DEPRESSED. THE CONTACT HAD TO SHIFT TO A LOWER GEAR TO SLOW DOWN THE VEHICLE AND THE BRAKE SERVICE WARNING INDICATOR ILLUMINATED. THE CONTACT DISCOVERED THAT THE BRAKE FLUID LINES WERE RUPTURED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 100,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10621729August 12, 2014
SERVICE BRAKES
WHILE DRIVING IN THE CITY MY BRAKE PEDAL WENT ALL THE WAY TO THE FLOOR AND I HAD MINIMAL BRAKING POWER. I WAS ABLE TO STOP THE VEHICLE SAFELY BUT THE BRAKES LINES ARE COMPLETELY GONE. THEY ARE ALL RUSTED AND HAVE SEVERAL HOLES IN THEM AND MUST BE REPLACED. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10621818August 12, 2014
EXTERIOR LIGHTING
THE HEADLIGHTS ON THE 2014 GMC SIERRA DO NOT SUPPLY ENOUGH LIGHT WHILE DRIVING AT NIGHT. I WAS SHOCKED AT HOW LITTLE LIGHT THEY PUT OUT. IT IS ALMOST DANGEROUS TO DRIVE AT NIGHT DUE TO THE FACT THAT VISIBILITY IS SO LIMITED. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10621298August 11, 2014
SERVICE BRAKES
STOPPING IN DRIVEWAY. BRAKE PEDAL WENT TO THE FLOOR WITHOUT RESISTANCE. AFTER VEHICLE STOPPED OBSERVED FLUID LEAK UNDER FRONT DRIVER SIDE AFT OF FRONT TIRE. INSPECTED ENGINE COMPARTMENT AND OBSERVED SEVERELY CORRODED BRAKE LIVES AND BRAKE FLUID IN ENGINE COMPARTMENT. BRAKE LINE APPARENTLY CORRODED AND RUPTURED RESULTING IN BRAKE FAILURE. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10621367August 11, 2014
EXTERIOR LIGHTING
HEADLIGHT ARE EXTREMELY INADEQUATE!! VERY POOR VISIBILITY ESPECIALLY ON LOW BEAM! *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10621446August 11, 2014
SERVICE BRAKES
PULLING OUT OF DRIVEWAY, NO BRAKES. BROKEN CORRODED BRAKE LINE, APPEARS THAT ALL LINES LOOK IN THE SAME SHAPE .LUCKILY THERE WAS NO ONCOMING TRAFFIC. THE HOLE IN THE LINE IS DIRECTLY UNDER THE DRIVER SEAT. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10621127August 9, 2014
ENGINE, STRUCTURE:BODY, AIR BAGS
MY SON AND I WERE DRIVING MY GMC SIERRA 2014 TO HIS FRIENDS HOUSE BEFORE WE CRASHED. MY SON WAS DRIVING AND HAS HIS LEARNER'S PERMIT, HOWEVER, HAD BEEN DRIVING FOR 4 MONTHS. AT A FORK IN THE ROAD I TOLD MY SON QUICKLY TO MAKE A RIGHT RATHER THAN LEFT AND WE CRASHED INTO AN IMPROPERLY GRATED WALL OF DIRT CAUSING THE TRUCK TO GO FROM 40 MPH TO 0 WITH MY SON HAVING HIS SEATBELT ON, BUT I DID NOT. NEITHER AIRBAGS DEPLOYED AND BOTH OF US SUSTAINED SERIOUS INJURIES. MY SON BROKE HIS NOSE AND I AM SUFFERING FROM A BROKEN NOSE, CONCUSSION AND A BURST VERTEBRAE. NEITHER AIRBAGS DEPLOYED WHICH COULD'VE MADE A HUGE DIFFERENCE ON OUR INJURIES. *TR
Crash:
Yes
Fire:
No
Injuries:
2
Deaths:
0
#10621172August 9, 2014
EXTERIOR LIGHTING
WORST HEADLIGHT FOR A NEW VEHICLE. I HAVE OWNED VARIOUS GM TRUCKS FROM 1967 TO 2014. NEVER HAVE I OWNED A TRUCK WITH SUCH WORTHLESS HEADLIGHTS LIKE THE PROJECTOR BEAM HEADLIGHTS ON MY 2014 GMC SIERRA 1500 WITH THE ALL TERRAIN PACKAGE. THE PROJECTOR HEADLIGHT ARE VERY DIM AND DO NOT LIGHT THE ROAD MORE THAN 30 FEET AHEAD. AT HIGHWAY SPEEDS (55-70) THE PROJECTOR HEADLIGHTS ARE ONLY LIGHTING A HALF SECOND AHEAD OF YOU. ADDITIONALLY THERE IS NO LIGHTING TO ILLUMINATE THE SHOULDER AT ALL.. YOU MUST DRIVE FULL TIME WITH THE FOG LAMPS ON TO HAVE A SMALL INCREASE IN LIGHTING. WHEN USING THE HIGH BEAMS THERE IS VERY LITTLE EFFECT ON VISIBILITY. EXTREMELY DISAPPOINTED IN THE 2014 GMC SIERRA. AND WILL UNLIKELY PURCHASE ANOTHER GM PRODUCT IN THE FUTURE. AT A MSRP OF OVER 50 GRAND I WOULD EXPECT A TRUCK TO HAVE ADEQUATE HEADLIGHT TO LIGHT THE ROAD. WITHOUT THE AFTERMARKET COST TO INSTALL BETTER LIGHTING THE 2014 GMC SIERRA IS VERY UNSAFE TO OPERATE AT NIGHT. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10620857August 8, 2014
SERVICE BRAKES
BRAKE LINES RUSTING OUT. VEHICLE NOT DRIVABLE. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10620969August 8, 2014
SERVICE BRAKES
I BROUGHT MY 2006 GMC SIERRA 2500 HD IN FOR A BRAKE SERVICE AS NORMAL. TECHNICIAN INSTALLED BRAKES AND ROTORS AND TOOK TRUCK FOR A TEST RIDE. AS TECHNICIAN WAS BRINGING TRUCK BACK FROM THE TEST RIDE, BRAKE LINE RUPTURED AND SPLIT! THIS WAS THE REAR DRIVERS SIDE BRAKE LINE LOCATED UNDER A PLATE. TECHNICIAN SAID HE NEARLY CRASHED THE TRUCK INTO ANOTHER VEHICLE AND HAD TO USE THE EMERGENCY BRAKE AND CURB TO STOP THE TRUCK! WITH ALL THE TRUCKS OUT THERE, GM'S TRUCKS SEEM TO HAVE THE HIGHEST BRAKE LINE FAILURE. I AM WRITING TO YOU TO INFORM YOU OF THE PROBLEM THAT COULD ENDANGER THE LIVES OF ANYONE DRIVING THE VEHICLE AS WELL AS THE PEOPLE AROUND IT! MY HOPE IS THAT GM SEES THERE IS A PROBLEM AND CORRECTS IT BEFORE ANY FATALITIES ARISE FROM BRAKE FAILURE! *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10620976August 8, 2014
ELECTRICAL SYSTEM
THE INSTRUMENT CLUSTER PANEL ON MY 2005 GMC SIERRA PICK UP CONSTANTLY READS THE WRONG SPEED. AT TIMES IT REGISTERS 0 MPH WHEN IM ACTUALLY DRIVING OR IT READS 120MPH WHEN STOPPED. ALSO THE OIL PRESSURE GAUGE IS PEGGED OUT. THERE SAMES TO BE ALOT OF COMPLAINTS FOR THE SAME THING ON THE YEAR AND MODEL, YOU NEED TO MAKE GM DO A RECALL ON THIS. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

← Back to GMC Sierra