GMC Sierra Complaints

15,732 consumer complaints on file.

#10680289January 31, 2015
SERVICE BRAKES
BRAKES FAILED UNEXPECTEDLY. THE PEDAL WENT ALL THE WAY TO THE FLOOR AND BARELY SLOWED DOWN THE TRUCK AT ALL. THIS WAS DUE TO A BRAKE LINE THAT RUSTED THROUGH. THE REPAIR WAS $765. HAD I BEEN IN AN AREA WITH HIGHER TRAFFIC THERE WOULD HAVE BEEN AN ACCIDENT. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10679788January 29, 2015
SERVICE BRAKES
I WAS DRIVING AND WENT TO APPLY BRAKES FOR THE STOP SIGN AHEAD, AND I HAD NO BRAKES. ONCE I HAD THE TRUCK HOME I PARKED IT. I DETERMINED THAT THE BRAKE LINES HAD RUSTED THROUGH BY HAVING A PIECE OF CARDBOARD UNDER THE TRUCK TO LOCATE THE LEAKING BRAKE FLUID. I'M SO LUCKY THAT I DIDN'T HAVE A CAMPER ON THE TRUCK AND HAD GONE ON VACATION TO COLORADO, AS I INTENDED THIS TO BE MY RECREATIONAL VEHICLE FOR THIS PURPOSE. I AM HAUNTED BY THE POSSIBLE SCENARIOS AND CRASHES THAT COULD HAVE OCCURRED TO ME AND MY FAMILY. WIFE, SON, AND TWO DAUGHTERS. THIS NEEDS TO BE ADDRESSED BEFORE OTHER HUMAN BEINGS END UP SERIOUSLY INJURED, TRAUMATIZED, OR DEATH BEING VERY HIGHLY LIKELY. SO I HAVE A NEAR NEW TRUCK SITTING IN THE YARD FOR NEARLY THE PAST FIVE YEARS. MY ATTEMPT TO INSTALL AFTER-MARKET BRAKE LINES HAS BEEN A FAILURE. GM SHOULD BE RESPONSIBLE FOR THIS CATASTROPHIC FAILURE. I KNOW AS TIME GOES BY OTHER BRAKE LINES ON THESE MODELS WILL RUST AND FAIL. I WILL BE HERE AS A WITNESS, AND SO WILL THE TRUCK AS I HAVE REFUSED OFFERS TO SELL IT. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10679802January 29, 2015
EXTERIOR LIGHTING
WHEN I FIRST STARTED DRIVING MY NEW 14 GMC I HAD NEVER HAD A TRUCK WITH PROJECTOR HEADLIGHTS SO I WAS UNSURE IF IT WAS JUST ME THAT HAD TO ADJUST TO THE BEAM OF LIGHT THEY PROVIDE OR IF IT WAS A PROBLEM WITH THE LIGHTING ITSELF. AFTER HAVING DRIVEN MY 14 SILEVRADO WORK TRUCK WITH STANDARD LIGHTS I REALIZE THERE IS A HUGE PROBLEM WITH THE GMC PROJECTOR LIGHTS THEY ARE SO BAD IT MAKES YOU THINK THERE IS A FAULTY GROUND WIRE OR SOMETHING EXTRA ORDINARY WRONG WITH THE HEADLIGHTS. IT IS SO BAD THAT I EVEN LOOKED INTO UPGRADING THE BULBS BUT YOU CAN'T EVEN DO THAT BECAUSE PHILIPS OWNS THE RIGHTS TO PRODUCE THEM AND WANTS TO OVER CHARGE THE AFTERMARKET FOR THE USE OF THE DESIGN, SO I AM STUCK WITH A HEADLIGHT SYSTEM THAT IS WORSE THEN A 6V HEADLIGHT FROM THE 40S. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10679831January 29, 2015
ELECTRICAL SYSTEM
MY FAN HIGH SPEED BURST OUT AND I HAD A STRONG ELSE TRIAL BURNING SMELL. I HAD MY TRUCK LOOKED AT TO FIND THAT MY WIRING HARNESS AND RESISTOR HAD BURNT. I HAD THEM REPLACED THIS LAST SEPTEMBER. SINCE THEN I HAVE HAD TO REPLACE TWO MORE RESISTORS AND ONE MORE WIRING HARNESS. I TALKED TO TWO DEALERSHIPS AND NO ONE TOLD ME ABOUT THE, "SPECIAL WARRANTY ADJUSTMENT". I HAD TO RESEARCH THE INTERNET TO FIND THIS OUT. WHEN I TOOK MY TRUCK BACK TO THE ORIGINAL DEALER, THEY BLAMED ME FOR NOT KNOWING THE LANGUAGE. I AM GLAD I DID NOT BURN MY TRUCK UP LIKE SEVERAL OTHER HAD (FOUND ON THE INTERNET). NOW THE DEALER TELLS ME THAT MAIN CONTROLLER HAS FAILED AND I HAVE TO PAY OVER $400 IN REPAIRS. HOW DO I KNOW THAT THE MAIN CONTROLLER DID NOT BURN OUT THE RESISTOR OR WIRING HARNESS? I AM CONCERNED THAT LARGE CORPORATIONS ARE PLAYING WITH OUR LIVES. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10679505January 28, 2015
POWER TRAIN
I HAD MADE A COMPLAINT TO CHAPDELAINE BUICK- GMC THAT MY BRAND NEW TRUCK DID NOT SEEM TO GO INTO FOUR WHEEL DRIVE. I WAS TOLD TO BRING THE TRUCK TO THE DEALERSHIP AND THEY WOULD CHECK IT FOR ME. I WAS TOLD BY THE SERVICE DEPARTMENT THAT THE TRUCK WORKED JUST FINE IN FOUR WHEEL DRIVE. I THEN NOTICED THAT THE TRUCK SEEM TO SHIFT VERY ROUGH AND I CALLED THE SERVICE DEPARTMENT AND TOLD THEM THAT SOMETHING HAD TO BE WRONG. THE SERVICE DEPARTMENT ASKED ME TO BRING THE TRUCK BACK DOWN TO THEM THE NEXT DAY AND THEY WOULD TAKE IT FOR A TEST DRIVE. WHILE I WAS DRIVING THE TRUCK TO THE DEALERSHIP IT SHIFTED FROM DRIVE INTO NEUTRAL.I COASTED TO A STOP PUT THE VEHICLE INTO PARK SHUT OFF AND RESTARTED THE ENGINE AND THEN SHIFTED BACK INTO DRIVE AND TRIED TO DRIVE AGAIN. THIS TIME THE VEHICLE SERVICE ENGINE LIGHT CAME ON AND THE VEHICLE STAYED IN LOW GEAR AND WOULD NOT SHIFT INTO A HIGHER GEAR. THE BEST SPEED I COULD MAKE WAS 10 MPH. I STOPPED THE VEHICLE AND RESTARTED TWO MORE TIMES. ON THE SECOND TRY THE VEHICLE DID GO INTO DRIVE. I MADE IT TO THE DEALERSHIP AND THEY TOOK IT FOR A TEST DRIVE AND UPON THEIR RETURN GAVE ME A LOANER VEHICLE. THEY HAD TO REBUILD THE TRANSMISSION ON MY BRAND NEW TRUCK WHICH TOOK ABOUT THREE DAYS. THANKFULLY THIS EVENT TOOK PLACE ON A BACK ROAD WITH LITTLE TRAFFIC. IF IT HAD HAPPENED ON A BUSY ROAD AN ACCIDENT MIGHT HAVE OCCURRED. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10679558January 28, 2015
STRUCTURE, AIR BAGS
THE DASHBOARD IS CRACKING DUE TO A DESIGN FLAW AROUND THE PASSENGER AIRBAG WHICH CAN CAUSE THE AIRBAG TO TEAR AND OR FAIL TO DEPLOY PROPERLY IN A ACCIDENT. IN RESEARCHING THIS SUBJECT ON THE INTERNET I CAME TO FIND OUT THAT THIS IS A COMMON ISSUE IN ALL GMC AND CHEVROLET LIGHT DUTY TRUCKS FROM 2007-2012. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10679355January 28, 2015
ENGINE, SERVICE BRAKES, STEERING
I AM AN ASE MASTER TECHNICIAN, I OWN AN AUTO/TRUCK REPAIR FACILITY. WE ARE A STATE OF OREGON AUTHORIZED DEQ REPAIR FACILITY, STATE OF OREGON DAS FLEET REPAIR FACILITY, US ARMY BASE VEHICLE REPAIR SHOP AND MORE. DRIVING MY TRUCK TO TACOMA WASHINGTON. I WAS TOWING A VEHICLE ON IN THE RIGHT SLOW LANE, AND "REDUCED ENGINE POWER" LIGHT CAME ON. ENGINE VIBRATED AND RUNS ON 1/2 CYLINDERS. CANNOT BRAKE OR STEER, TOTAL LACK OF POWER. SEMI-TRUCK NEARLY REAR ENDS ME AS I CANNOT GO OVER 10 MPH. NO THROTTLE RESPONSE, PERIOD. I WAS IN ROAD CONSTRUCTION ZONE AND EVERYONE WAS SLAMMING ON THEIR BRAKES TO AVOID PILE-UP AS I HAD NO SHOULDER TO PULL OVER TO. A MILE OR SO LATER I PULLED OVER, AND SHUT OFF TRUCK. RESTARTED FEW MINUTES LATER AND CEL WAS ON, BUT REDUCED ENGINE POWER LIGHTS OUT. I CONTINUED MY DRIVE, BUT NOW CAUTIOUSLY. IT HAPPENED 3 MORE TIMES GETTING TO TACOMA, AND 5 TIMES RETURNING BACK TO PDX. NOW AFRAID OF TRUCK. I FINALLY ARRIVED TO MY SHOP THE NEXT DAY AND SCANNED. CODES READ MAF FAIL, TPS FAIL. REPLACED THROTTLE PEDAL ASSY, THROTTLE BODY WITH POSITION SENSOR, WIRING TO THE THROTTLE BODY, CHECKED GROUNDS, REPLACED BATTERY AND MORE AS STATED BY GM TECH'S. STILL HAPPENS EVERY DAY. SEEMS LIKE UNDER LOW ACCELERATION, ENGINE BUCKS THEN CEL APPEARS AND REDUCED ENGINE POWER RETURNS. GM HAS NO OFFERS OR EXPLANATIONS FOR REPAIRS. I AM A CERTIFIED ASE MASTER TECHNICIAN AND HAVE NEVER SEEN OR HEARD OF THIS UNTIL I WENT ONLINE TO SEE IF THIS HAPPENS TO OTHERS. THIS IS A MAJOR PROBLEM WITH MOST GM OWNERS IN THE "FLY BY WIRE" TYPE OF VEHICLES. NO FIXES, NO HELP FROM GM. THIS HAS AND IS STILL OCCURRING EVEN TODAY 1/27/2015 WITH NO FIXES. VEHICLE IS BEING PARKED UNTIL FURTHER NOTICE AS THIS VEHICLE IS DANGEROUS TO DRIVE. ASE MASTER TECHNICIAN #[XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).' *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10679359January 28, 2015
SERVICE BRAKES
BRAKE LINES ARE SO RUSTY THEY LEAK. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10679432January 28, 2015
EXTERIOR LIGHTING
THE HEADLIGHTS ON THIS VEHICLE ARE HORRIBLE. DRIVING ON ROADS WITH NO STREET LIGHTS IS DANGEROUS. THE HIGH BEAMS DO NOTHING AT ALL EXCEPT LIGHT UP TREE TOPS. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10679213January 27, 2015
ELECTRICAL SYSTEM, VISIBILITY/WIPER, EXTERIOR LIGHTING
DURING NIGHT OPERATION WITH THE INSTRUMENT CLUSTER ADJUSTED TO PROPER BRIGHTNESS THE CENTER CONSOLE LIGHTS AND MOST NOTABLY, THE INTELLILINK SCREEN ARE DANGEROUSLY BRIGHT. THE INTELLILINK SCREEN DOES NOT HAVE AN INDEPENDENT BRIGHTNESS CONTROL FROM THE DIMMER. WHEN SET TO OFF IN AN ATTEMPT TO MITIGATE THE PROBLEM, THE INTELLILINK SCREEN REACTIVATES WITH SUBSYSTEM ADJUSTMENT, E.G. TEMPERATURE ADJUSTMENT, ABSOLUTELY DESTROYING NIGHT VISION OF THE DRIVER. IF ADJUSTING THE BRIGHTNESS LEVEL TO ACCEPTABLE FOR THE CENTER CONSOLE LIGHTING AND INTELLILINK THE INSTRUMENT CLUSTER IS SO DIM THAT IT REQUIRES UNSAFE LEVELS OF DRIVER ATTENTION TO PROCESS THE DIMLY LIT INFORMATION. DEALER VERIFIED ISSUE ON TWO SERVICE VISITS BUT UNABLE TO CORRECT PER MANUFACTURER. SAFETY COMPLAINT REGISTERED BY ME WITH GMC INFOTAINMENT CUSTOMER SUPPORT. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10679309January 27, 2015
SERVICE BRAKES
WHEN TRYING TO EXIT HIGHWAY OFFRAMP BRAKES COMPLETELY FAILED DUE TO BRAKE LINES RUSTING THROUGH. VEHICLE WAS BROUGHT TO A STOP WITH PARKING BRAKE. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10679336January 27, 2015
EXTERIOR LIGHTING
VERY POOR VISIBILITY AT NIGHT DRIVING. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10678961January 26, 2015
ELECTRICAL SYSTEM
TL*THE CONTACT OWNS A 2005 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE AT A STOP SIGN, ALL THE LIGHTS ON THE INSTRUMENT PANEL BEGAN FLASHING INTERMITTENTLY. ALSO, THE HEADLIGHTS TURNED ON AND OFF INDEPENDENTLY, THE SPEEDOMETER AND TEMPERATURE GAUGES SHOWED INACCURATE READINGS. THE VEHICLE WAS TAKEN TO THE DEALER, WHERE IT WAS DIAGNOSED WITH ELECTRICAL FAILURES ON THE COMPUTER SYSTEM. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 70,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10679063January 26, 2015
POWER TRAIN, STEERING
THE PART BROKE IN HALF AT LOW SPEED WHILE I WAS DRIVING IN A CONSTRUCTION AREA (MY OWN DRIVEWAY BEING INSTALLED) I HIT SOMETHING AND THE METAL CASING OF THE AXLE WHERE IT ATTACHES TO THE FRONT DIFF. BROKE IN HALF. I AM 60 YEARS OLD MY WIFE WAS IN THE TRUCK I WAS GOING SO SLOW THE SPEEDOMETER WAS ON 0. THE DEALER SAID THE PART WAS CRACKED BY THE IMPACT. THIS IS SUPPOSED TO BE A HEAVY DUTY 4X4 P/U, IF I WAS GOING AT 40 MPH OFF ROAD WHAT WOULD HAVE BROKE AND WHAT WOULD HAVE BEEN THE RESULT? I THINK THE METAL OF THE CASING WAS FLAWED AND I AM AFRAID TO KEEP THE TRUCK. THE DEALER SAID THIS ISN'T A WARRANTY ISSUE I HAD TO PUT A CLAIM INTO MY INS. THIS IS NOT ONLY A CONCERN FOR SAFETY BUT FOR FINANCES AS WELL. I PAID $44,000. CASH FOR THIS TRUCK, IT IS THE SIERRA SLT NOT ONLY A 4X4 BUT IT HAS 20" RIMS FOR ADDED HEIGHT. THIS WAS NOT HIT HARD ENOUGH TO CRACK A STEEL CASING. THE TRUCK IS AT A GMC/BUICK DEALER IN MOUNT DORA FL. THEY SAID IT MIGHT TAKE AWHILE TO FIND THE PARTS TO FIX IT. I DO NOT THINK GMC MAKES CHEAP TRUCKS OR DANGEROUS TRUCKS BUT I THINK AFTER THIS GETS FIXED I WILL BE LOOKING INTO TRADING IT. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10678693January 24, 2015
SERVICE BRAKES
I WAS TURNING AROUND IN MY DRIVEWAY, WHEN SUDDENLY THE BRAKE PEDDLE WENT TO THE FLOOR AND ALL BRAKING POWER WAS LOST. TRIED PUMPING THE BRAKES MULTIPLE TIMES WITH NO SUCCESS. THERE WAS NO WARNING (LIGHTS OR OTHERWISE) BEFORE THE INCIDENT, AND NO DASH LIGHTS LIT DURING THE INCIDENT EITHER. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10678466January 23, 2015
SERVICE BRAKES
WAS COMING TO A STOP LIGHT AND BRAKE PEDAL WENT ALL THE WAY TO FLOOR. HAD TO STEP ON SEVERAL TIMES TO GET STOPPED. THE FACTORY ELECTRICAL WIRE IN FACTORY LOOM IN FACTORY CLAMP HOOKED TO BRAKE LINE WORE A HOLE THROUGH BRAKE LINE TO RIGHT FRONT WHEEL. WORE THROUGH DIRECTLY UNDER THE MASTER CYLINDER. LUCKILY I WAS NOT GOING AT HIGH SPEED OR THIS COULD HAVE BEEN A FATAL INCIDENT!!!!!!!!! THIS IS SOMETHING THAT COME FROM FACTORY AND NEEDS TO BE ADDRESSED. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10678559January 23, 2015
EXTERIOR LIGHTING
THE HEADLIGHTS DO NOT ADEQUATELY ILLUMINATE THE ROAD. THERE IS NO LIGHT TO THE SIDE OF ROAD. I CAME VERY CLOSE TO DRIVING INTO A DITCH. WHEN DRIVING DOWN OR UP GRADES THE ROAD IS IN COMPLETE DARKNESS. NO DISCERNIBLE DIFFERENCE BETWEEN HIGH AND LOW BEAMS. IT'S VERY DANGEROUS DRIVING ON UNLIT COUNTRY ROADS NEAR MY HOME IN UPSTATE NY. WHEN RAINING THE PROBLEM IS EVEN WORSE. THE HEADLAMPS ON ALL 4 OF MY PREVIOUS GM TRUCKS 9JIMMYS, YUKON AND SUBURBAN) WERE FAR SUPERIOR TO THOSE ON MY NEW $55,000 SIERRA. THIS TRUCK SHOULD NOT BE DRIVEN AT NIGHT BUT THAT'S UNAVOIDABLE, SOMEONE'S GOING TO BE HURT OR KILLED!!! *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10678651January 23, 2015
ELECTRICAL SYSTEM, VISIBILITY/WIPER
VISIBILITY FROM THE VEHICLES HEADLIGHTS IS VERY POOR. I'M AFRAID TO DRIVE AT NIGHT BECAUSE LIGHTING IS POOR. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10678418January 22, 2015
SERVICE BRAKES
WHILE DRIVING TO THE STORE I APPLIED THE BRAKE AND IT WENT STRAIGHT TO FLOOR WITHOUT ANY PRE-WARNING OF A BRAKE ISSUE. I WAS ABLE TO STOP WITHOUT CRASHING AND FOUND THAT THE BRAKE LINE ROUTED OVER THE GAS TANK RUSTED THROUGH SPILLING OUT BRAKE FLUID WHICH CAUSED THE BRAKE RESERVOIR TO EMPTY. AFTER DOING SOME RESEARCH NHTSA IS WELL AWARE OF THE RUSTED BRAKE LINES ON GM MODELS, SO I AM NOT TELLING YOU ANYTHING NEW. I EXPECT ALTERNATORS, STARTER MOTORS, AND OTHER MECHANICAL COMPONENTS TO FAIL AND NEED REPLACED BUT BRAKE LINES SHOULD BE MANUFACTURED USING STAINLESS STEEL. HOW CAN THIS BE ANY DIFFERENT THAN A CAR IGNITION TURNING OFF CAUSING POTENTIAL CRASHES AND LOSS OF LIFE. NHTSA SHOULD HAVE GM RECALL VEHICLES AND/OR REIMBURSE OWNERS FOR THIS HIGHLY POTENTIAL SAFETY ISSUE. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10678353January 22, 2015
EXTERIOR LIGHTING
MY COMPLAINT IS WITH THE HOW DIM THE OEM HEADLIGHTS ARE. I HAVE COMPLAINED TO GMC REGARDING THE HEADLIGHTS AND THE RESPONSE IS THAT THEY ARE OK WITH HOW DIM THE LIGHTS ARE. COMPARED TO OTHER VEHICLES I OWN/HAVE OWNED THE HEADLIGHTS ARE EXTREMELY DIM TO THE POINT OF BEING DANGEROUS. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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