GMC Sierra Complaints (2007)

440 consumer complaints on file.

#10702865March 31, 2015
POWER TRAIN
TL* THE CONTACT OWNS A 2007 GMC SIERRA 1500. WHILE DRIVING APPROXIMATELY 60 MPH, THE VEHICLE JERKED VIOLENTLY WITHOUT WARNING. THE VEHICLE WAS TAKEN TO A DEALER, WHERE IT WAS DIAGNOSED THAT THE TRANSMISSION NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED, BUT THE FAILURE RECURRED AND THE TRANSMISSION HAD TO BE REPLACED A SECOND TIME. THE FAILURE RECURRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 25,499.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10702996March 31, 2015
STRUCTURE, AIR BAGS
MY TRUCK HAS A FAULTY DASHBOARD AND IT IS A SAFETY CONCERN IF I GET IN AN ACCIDENT. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10701504March 24, 2015
ENGINE AND ENGINE COOLING, POWER TRAIN, FUEL/PROPULSION SYSTEM
WHY IS GM RECALL 14121 LIMITED TO NEW VEHICLES? IT HAS BEEN A RECURRENT, COMMON PROBLEM SINCE LONG BEFORE 2000. LONG BEFORE I BOUGHT MY 2007 GMC SIERRA CLASSIC 2500HD WHICH IS ON THE THIRD REPAIR. I JUST REPLACED A TRANSMISSION COOLER LINE IN MY DRIVEWAY. TODAY. WHICH IS STEADILY ERODING BY WAY OF CONTINUOUS TRANSMISSION COOLER LEAKS. IT CONTINUOUSLY COATS THE UNDERSIDE OF VEHICLE, REDUCING LIFE OF BELTS AND HOSES. GM DEALERS FEEL ITS NOT COVERED BY 5/100K POWERTRAIN WARRANTY, OR 36K BUMPER-BUMPER WARRANTY BECAUSE IT'S A LONG TIME GM PROBLEM AS WELL AS WARRANTIES IN GENERAL. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10695182March 18, 2015
AIR BAGS, SEAT BELTS
TL* THE CONTACT OWNED A 2007 GMC SIERRA. THE CONTACT STATED THAT WHILE DRIVING AT 65 MPH, THE VEHICLE CRASHED HEAD ON INTO ANOTHER VEHICLE. THE SEAT BELT BECAME UNBUCKLED AND THE AIR BAG DID NOT DEPLOY. THE VEHICLE WAS TOWED AND DEEMED DESTROYED. THE CONTACT SUSTAINED A CONCUSSION AND CUT ON THE LEG, WHICH REQUIRED MEDICAL ATTENTION. A POLICE REPORT WAS FILED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 103,000. UPDATED 8/27/15*CN
Crash:
Yes
Fire:
No
Injuries:
1
Deaths:
0
#10692424March 6, 2015
POWER TRAIN, ENGINE
GENERAL MOTORS GMC SIERRA DURAMAX EQUIPPED PICK UP TRUCKS (LMM SERIES) HAVE AN ISSUE WITH LEAKING TRANSMISSION COOLING LINES WHERE THE RUBBER HOSES ARE CRIMPED TO THE STEEL CONNECTORS. THE PROBLEM IS A FIRE HAZARD DUE TO LEAKING TRANSMISSION FLUID. GM HAS ALREADY ISSUED REPLACEMENT OF THESE HOSES FOR THE 2008 MODEL YEAR. IN 2007 GM HAD A SPLIT YEAR OFFERING FOR THE DURAMAX. THE 2007 VERSION WAS A SERIES LBZ. IN THE SECOND HALF OF 2007 (DUE TO EMISSIONS REQUIREMENTS) GMC INTRODUCED THE MODEL YEAR DESIGNATION 2007.5. THE 2007.5 WERE THE FIRST OF THE LMM SERIES. THE 2007.5 ARE IDENTICAL TO MODEL YEAR 2008. THE 2007.5 LMM SERIES HAVE THE SAME LEAKING TRANSMISSION COOLER LINES AND SHOULD BE INCLUDED IN THE SAME DECISION AS THE 2008 MODELS. SINCE THE 2007.5 SHOW UP AS "2007" MODEL YEAR THEY HAVE NOT BEEN INCLUDED. GM HAS MISSED THIS SMALL GROUP OF 1/2 YEAR VEHICLES (I BELIEVE AN OVERSIGHT) IN THE HOSE REPLACE RECALL. SINCE THIS ISSUE HAS ALREADY BEEN IDENTIFIED FOR 2008 VEHICLES THE SAME ISSUE APPLIES FOR 2007.5 MODELS. THEY SHOULD ALSO BE INCLUDED BUT CURRENTLY ARE NOT. I'M HOPING THAT THE AWARENESS OF THE UNUSUAL SPLIT YEAR MODELS (SERIES LMM) IS REALIZED AND THEIR VIN NUMBERS ADDED TO THE RECALL. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10691876March 3, 2015
ENGINE
TL*THE CONTACT OWNS A 2007 GMC SIERRA. THE CONTACT STATED THAT THE COOLING SYSTEM WAS LEAKING FLUID CAUSING THE VEHICLE TO OVERHEAT. THE FAILURE RECURRED SEVERAL TIMES. THE VEHICLE WAS NOT DIAGNOSED OF REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 83,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10691926March 3, 2015
ELECTRICAL SYSTEM
TL*THE CONTACT OWNS A 2007 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE TRACTION CONTROL WARNING LIGHT ILLUMINATED, THE INTERNAL/EXTERNAL LIGHTS INDEPENDENTLY FLASHED ON/OFF AND THE DOOR LOCKS INDEPENDENTLY LOCKED AND UNLOCKED. IN ADDITION, THE SPEEDOMETER GAUGE WOULD FLUCTUATE FROM 30 TO 50 MPH. THE VEHICLE WAS TAKEN TO THE DEALER, WHO WAS UNABLE TO DETERMINE THE FAILURE. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS UNAVAILABLE.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10669923January 4, 2015
SERVICE BRAKES
AS I WAS TRAVELING ABOUT 35MPH APPROACHING A RED STOPLIGHT I PROCEEDED TO PRESS THE BRAKE PEDAL ALL THE WAY TO THE FLOOR, WITH NO BRAKING OF THE VEHICLE. LUCKILY I WAS ABLE TO QUICKLY SHIFT THE VEHICLE INTO NEUTRAL AND ENGAGE THE EMERGENCY BRAKE AND AVOID COLLISION. AFTER FURTHER INSPECTION I FOUND THE HARD BRAKE LINE RUNNING TO THE FRONT LEFT WHEEL HAD RUPTURED CAUSING THE LOSS OF BRAKE FLUID. THE LINE RUPTURED IN AN AREA WHERE IT WAS SEVERELY CORRODED AND UPON INSPECTION, THE OTHER HARD BRAKE LINES OF THE SYSTEM LOOKED SEVERELY CORRODED ALSO. ALL WILL HAVE TO BE REPLACED! THIS FAILURE COULD HAVE HAD A VERY BAD CONSEQUENCES AT A HIGHER SPEED, CLOSER PROXIMITY TO OTHER VEHICLES, OR WITH A LESS EXPERIENCED DRIVER! *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10663110December 9, 2014
SERVICE BRAKES, ELECTRICAL SYSTEM
VEHICLE IS EQUIPPED WITH FACTORY INTEGRATED TRAILER BRAKE CONTROL (ITBC). BACK IN JAN., 2011 I GOT A MESSAGE IN THE DRIVER INFORMATION CENTER (DIC): IT SAID "SERVICE TRAILER BRAKE SYSTEM". MESSAGE INTERMITTENT AT FIRST, AND THEN MORE FREQUENTLY , AND THEN MESSAGE APPEARED AT START-UP EVERY TIME. DEALER FIXED PROBLEM. IN APRIL OF 2013 THE SAME PROBLEM HAS RETURNED IN EXACTLY THE SAME PATTERN AS THE PREVIOUS FAULT. THIS A FAULTY SYSTEM AT BEST, AND HAS SERIOUS DESIGN FLAWS. THE SERIOUS SAFETY ISSUE HERE IS: WHEN THE "SERVICE TRAILER BRAKE SYSTEM" MESSAGE APPEARS ON THE DIC; ALL TRAILER BRAKING IS LOST. THERE IS NO DEFAULT OR BACK-UP SYSTEM IN WHICH TO APPLY TRAILER BRAKES. EVEN THE MANUAL TRAILER BRAKE CONTROL BUILT INTO THE ITBC IS ALSO RENDERED INOPERABLE. THIS ITBC FAILURE COULD HAPPEN AT ANY TIME, AND AT ANY SPEED. THIS VEHICLE IS RATED TO TOW A TRAILER OF 10,000LBS. PLUS. MANY PEOPLES LIVES COULD BE PUT IN JEOPARDY IF SUDDENLY ALL TRAILER BRAKING WERE LOST ON A STEEP DOWNGRADE. THIS ITBC SYSTEM NEEDS TO BE RE-DESIGNED SO THAT A VEHICLE OPERATOR CAN OPERATE THE TRAILER BRAKES MANUALLY IF AUTOMATIC TRAILER BRAKE CONTROL IS LOST WHEN THE OPERATOR GETS A "SERVICE TRAILER BRAKE SYSTEM" ON THE DIC. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10663244December 9, 2014
SEAT BELTS
TL* THE CONTACT OWNS A 2007 GMC SIERRA 1500. THE CONTACT STATED THAT THE FRONT DRIVER AND PASSENGER SIDE SEAT BELTS FAILED TO LATCH. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 107,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10654815November 13, 2014
AIR BAGS
TL* THE CONTACT OWNS A 2007 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE DRIVING 48 MPH, HE CRASHED INTO ANOTHER VEHICLE AND THE AIR BAGS FAILED TO DEPLOY. A POLICE REPORT WAS FILED. THE CONTACT SUSTAINED RIB INJURIES BUT DID NOT REQUIRE MEDICAL ATTENTION. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 106,000.
Crash:
Yes
Fire:
No
Injuries:
1
Deaths:
0
#10654130November 11, 2014
WHEELS
I OWN A 2007 GMC SIERRA 2500HD PICKUP WITH 94278 MILES ON IT. THIS WEEK END THE RIGHT FRONT WHEEL BEARING ASSY FAILED FOR THE SECOND TIME, AND THE LEFT ONE WAS ON ITS WAY TO FAILING. AT A COST OF 375.00 EACH I REPLACED BOTH SIDES. THIS SEEMS VERY EXCESSIVE TO ME TO HAVE TO REPLACE THE WHEEL BEARINGS FOR THE SECOND TIME WITH LESS THAN ONE HUNDRED THOUSAND MILES ON THE VEHICLE. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10649324October 22, 2014
UNKNOWN OR OTHER
JUST LOOKING. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10644545October 14, 2014
POWER TRAIN
TL* THE CONTACT OWNS A 2007 GMC SIERRA. WHILE DRIVING VARIOUS SPEEDS, THE TRANSMISSION SLIPPED INTO THE THIRD AND FOURTH GEARS AND THE CHECK ENGINE WARNING INDICATOR ILLUMINATED. THE DEALER STATED THAT THE TRANSMISSION NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOT NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 60,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10644320October 13, 2014
SERVICE BRAKES
I DRIVE A COMPANY TRUCK DURING THE WEEK AND MAKE A HABIT OF DRIVING MY SIERRA ONCE A WEEK AS WELL. I WAS GOING DOWN THE DRIVEWAY TO THE MAIN ROAD WHEN THE PEDAL FELL TO THE FLOOR. NO BRAKES WHATSOEVER. I USED THE EMERGENCY BRAKE TO COME TO A SAFE STOP. I LOOKED UNDER THE HOOD TO REALIZE THAT THE BRAKE LINES WERE RUSTED AND HAD BLOWN A HOLE. THIS TRUCK IS NOT THAT OLD AND I DO NOT LIVE IN A NORTHERN STATE WHERE SALT CORROSION IS AN ISSUE. I BABY MY TRUCK AND KEEP IT UP. I LATER DID A SEARCH ON THE WEB AN FOUND OUT THAT THOUSANDS OF OTHERS ARE HAVING THIS ISSUE AS WELL. THIS IS RIDICULOUS, THIS IS A BAD MATERIAL CHOICE FOR BRAKE LINES. GMC NEEDS TO REALIZE THIS AND RECALL ALL OF US AND INSTALL COATED, OR BETTER YET, BRAIDED/POLY-COVERED LINES TO MAKE SURE THIS NEVER HAPPENS AGAIN. WHAT IF I WERE TRAVELING AT A HIGHER RATE OF SPEED AND HAD MY FAMILY IN THE CAR? I CAN SEE THEIR STAND ON THIS BEING A MAINTENANCE ISSUE, BUT I HAVE FRIENDS WITH EARLY 80'S AND 90'S MODEL TRUCKS THAT STILL HAVE THE ORIGINAL BRAKE LINES IN THEM, NOT CORRODED OR RUSTED, AND STILL WORK GREAT. GET ON THE BALL GMC AND TAKE RESPONSIBILITY FOR THIS. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10643625October 9, 2014
SERVICE BRAKES
WHILE FOLLOWING OTHER NORMALLY TRAVELING VEHICLES DOWNHILL - VEHICLES IN FRONT CAME TO A STOP - BRAKE PEDDLE WAS FULLY DEPRESSED...NO RESPONSE...BRAKE FULLY APPLIED 2ND TIME...NO RESPONSE...RESULTING IN A REAR END COLLISION MULTIPLE VEHICLES...POSSIBLE TOTAL OF MY 2007 SIERRA. DAMAGES ARE VERY EXTENSIVE . INSURANCE TO INVESTIGATE GM BRAKE POSSIBLE CAUSE....AIRBAG DEPLOYED CHEST & NECK INJURIES....MANY OTHER INCIDENTS INVOLVING GMC BRAKE SYSTEMS. NEED IMMEDIATE NHTSA INVESTIGATIONS !! THIS COULD HAVE CAUSED A FATALITY. *TR
Crash:
Yes
Fire:
No
Injuries:
2
Deaths:
0
#10639746September 29, 2014
STRUCTURE
I HAVE OWNED MY 2007 GMC SIERRA 1500 FOR A FEW YEARS NOW AND AM CONCERNED ABOUT A SAFETY ISSUE WITH THE VEHICLE. I NOTICED RECENTLY THAT THE DASH BOARD IS CRACKED IN SEVERAL PLACES. I HAVE NEVER BEEN INVOLVED IN AN ACCIDENT AND THE VEHICLE IS MOSTLY GARAGE KEPT. WHAT CONCERNS ME IS THE CRACKING THAT IS AROUND THE PASSENGER SIDE AIR BAG AND THE POSSIBILITY OF THE CRACKED PIECES BECOMING PROJECTILES IF THE AIRBAG WERE TO DEPLOY. ONCE I FOUND OUT THAT THESE CRACKS WERE PRESENT I DID SOME RESEARCH AND FOUND THAT THIS IS A COMMON TRAIT AMONG 2007-2013 GM TRUCKS. I HAVE SEEN PICTURES ONLINE ON THE GM TRUCK FORUM AND ON A DEDICATED FACEBOOK PAGE REGARDING MANY OTHER OWNERS WHO HAVE VEHICLES WITH THESE CRACKS. SOME OF THEM EVEN OWN VEHICLES IN THE 20,000 MILE RANGE. I WANTED TO BRING THIS TO YOUR ATTENTION, AND LET YOU KNOW THAT THIS IS A COMMON PROBLEM WHICH COULD BECOME A SAFETY CONCERN FOR MANY GM TRUCK OWNERS. TO MY KNOWLEDGE THERE IS NO RECALL AT THIS TIME. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10639219September 26, 2014
AIR BAGS
TL* THE CONTACT OWNS A 2007 GMC SIERRA. WHILE DRIVING APPROXIMATELY 45 MPH, THE AIR BAG WARNING INDICATOR ILLUMINATED. THE FAILURE OCCURRED ON TEN OCCASIONS. THE DEALER STATED THAT THE AIR BAGS NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 15,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10638159September 22, 2014
ENGINE
TL* THE CONTACT OWNS A 2007 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 45 MPH, THERE WAS A REDUCTION IN THE ENGINE POWER EVEN THOUGH FORCE WAS APPLIED TO THE ACCELERATOR PEDAL. THE VEHICLE WAS MERGED TO THE SIDE OF THE ROAD WHERE THE ENGINE WAS TURNED OFF. THE VEHICLE RESTARTED AND RESUMED IN OPERATION NORMALLY. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, WHO REPLACED THE COMPUTER MOTHERBOARD. THE FAILURE RECURRED ONE MONTH AFTER THE REPAIR WAS PERFORMED. THE VEHICLE HAD NOT BEEN REPAIRED FOR RECENT FAILURE. THE MANUFACTURER WAS NOT NOTIFIED OF THE PROBLEM. THE APPROXIMATE FAILURE MILEAGE WAS 124,000. THE VIN WAS UNAVAILABLE.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#10633240September 15, 2014
POWER TRAIN, VEHICLE SPEED CONTROL
TRAVELING AT A LOW SPEED ON MY PROPERTY AND THE TRUCK ENTERED INTO A "REDUCED POWER" MODE. WHICH CUT OFF ALL POWER TO THE DRIVE TRAIN. YOU WERE LEFT WITH NO ABILITY TO GO FRONT OR BACK. AFTER SHUTTING OFF THE TRUCK AND RESTARTING IT RETURNED TO NORMAL. LOCAL GMC DEALER SAYS HE GETS ONE A MONTH FOR THIS CONDITION. COSTS TO REPAIR EXCEEDS A $1000. LOST OF POWER COULD HAPPEN ANY TIME. VERY DANGEROUS SITUATION. *TR
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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