CARFOCALvehicle research
Research CarsCompareRankingsArticles
  1. Home›
  2. Manufacturers›
  3. GMC›
  4. Sierra›
  5. 2014›
  6. Complaints

2014 GMC Sierra Owner Complaints

Updated May 30, 20262 Critical Recalls
Ryan Davis

Complaint Summary

The 2014 GMC Sierra has 132 reported complaints.

  • Top issues involve exterior lighting and power train.

Reliability Score

Reliability Score

7.9/ 10

Based on 132 complaints

Most Frequent Issues

EXTERIOR LIGHTING

60 45.5%

POWER TRAIN

10 7.6%

ELECTRICAL SYSTEM

9 6.8%

ENGINE

8 6.1%

STEERING

7 5.3%

Quick Insights

  • The top category is EXTERIOR LIGHTING, accounting for 45.5% of all complaints.

  • Owners have reported issues across 22 distinct vehicle systems.

  • Note: Complaint data reflects owner reports and may not always indicate a verified defect. Compare with Recalls and TSBs for a complete picture.

Subscribe to Recall Alerts

Get notified when a new recall or important ownership update lands for the 2014 GMC Sierra.

Free alerts based on U.S. recall data. Unsubscribe anytime.

Complaint Summary

What owners keep reporting on the 2014 GMC Sierra

The 2014 GMC Sierra has 132 owner complaints in this dataset. EXTERIOR LIGHTING is the most common complaint category, representing about 45% of the reports shown here.

Most common complaint categories

The top complaint groups for the 2014 GMC Sierra are EXTERIOR LIGHTING (60), POWER TRAIN (10), ELECTRICAL SYSTEM (9).

Are these complaints a serious red flag?

Potentially. 35 complaint reports involve higher-attention systems like brakes, steering, engine, powertrain, fuel, suspension, airbags, or electrical components, which is enough to justify a focused inspection.

What should buyers inspect on a used 2014 GMC Sierra?

Start with the top complaint systems, compare them against the recall report, then inspect service records for evidence that those same areas were already repaired or monitored.

Read the full buyer guideRecall report and remedy notesMaintenance costs and intervals2013 Sierra complaints2015 Sierra complaints2016 Sierra complaints

Detailed Complaint Log

Showing 22 of 22 systems

EXTERIOR LIGHTING

60 Reports45% of total

Previewing the first 2 complaint summaries.

TL* THE CONTACT OWNS A 2014 GMC SIERRA. THE CONTACT STATED THAT THE HEADLIGHTS DID NOT PROJECT GOING DOWN A HILL AND TURNING ON A CURVE. THE VEHICLE WAS TAKEN TO A DEALER, WHO STATED THAT THE HEADLIGHTS WERE DESIGNED THAT WAY. THE MANUFACTURER WAS CONTACTED. THE APPROXIMATE FAILURE MILEAGE WAS 10,000.

6/18/2014

2014 GMC SIERRA. CONSUMER WRITES IN REGARDS TO VEHICLE ELECTRICAL PANEL FROZE WHILE DRIVING. *SMD ALSO, THE POWER STEERING LOCKED UP, THE HEADLIGHTS DID NOT WORK PROPERLY AND THE ALARM SOMETIMES SOUNDED AFTER THE WAS REMOVED FROM THE IGNITION. ALSO, THE ENGINE LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER TWICE. HOWEVER, THE PROBLEM WAS STILL NOT RESOLVED. THERE WAS A HESITATION/LURCH COMING FROM THE TRANSMISSION, AND AN ISSUE WITH THE TIRE PRESSURE MONITORING SYSTEM. THE INSTRUMENT PANEL MALFUNCTIONED ON THE WAY BACK FROM THE DEALER. THE CHECK ENGINE LIGHT, ILLUMINATED SPORADICALLY. UPDATED 07/10/14 THE CONSUMER STATED THERE WAS A STEERING ISSUE, AS WELL. THE DEALER WAS UNABLE TO REPLICATE THE PROBLEMS. UPDATED 08/06/14

6/30/2014

58 more complaints are available in this category.

POWER TRAIN

10 Reports8% of total

Previewing the first 2 complaint summaries.

2014 GMC SIERRA 1500 ROLLS BACKWARDS WHEN PARKED ON AN INCLINE AND THE TRANSMISSION IS IN PARK. *TR

1/11/2014

VEHICLE HESITATES AND STALLS UPON ACCELERATION. ACCORDING TO GM DOCUMENT ID NUMBER [XXX] THIS IS A NORMAL CONDITION AND THEY HAVE PROGRAMMED THE VEHICLE TO DO THIS. IF GOING INTO TRAFFIC AND TRYING TO ACCELERATE, THE BUILT IN DELAY CAN CAUSE CLOSE CALLS AT BEST AND WORST CASE AN ACCIDENT. THIS COUPLED WITH THE TRANSMISSION ISSUES MENTIONED IN DOCUMENT ID NUMBER 3575856 CREATES THE PERFECT STORM FOR INJURY AND / OR DEATH. GM REFUSES TO ADDRESS THE ISSUE OTHER THAN TO SAY THEY FEEL IT IS NOT A PROBLEM. THIS COVERS VIRTUALLY ALL GM VEHICLES SINCE 2007 WITH THE 6 SPEED TRANSMISSION. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

3/5/2014

8 more complaints are available in this category.

ELECTRICAL SYSTEM

9 Reports7% of total

Previewing the first 2 complaint summaries.

2014 GMC SIERRA. CONSUMER WRITES IN REGARDS TO VEHICLE ELECTRICAL PANEL FROZE WHILE DRIVING. *SMD ALSO, THE POWER STEERING LOCKED UP, THE HEADLIGHTS DID NOT WORK PROPERLY AND THE ALARM SOMETIMES SOUNDED AFTER THE WAS REMOVED FROM THE IGNITION. ALSO, THE ENGINE LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER TWICE. HOWEVER, THE PROBLEM WAS STILL NOT RESOLVED. THERE WAS A HESITATION/LURCH COMING FROM THE TRANSMISSION, AND AN ISSUE WITH THE TIRE PRESSURE MONITORING SYSTEM. THE INSTRUMENT PANEL MALFUNCTIONED ON THE WAY BACK FROM THE DEALER. THE CHECK ENGINE LIGHT, ILLUMINATED SPORADICALLY. UPDATED 07/10/14 THE CONSUMER STATED THERE WAS A STEERING ISSUE, AS WELL. THE DEALER WAS UNABLE TO REPLICATE THE PROBLEMS. UPDATED 08/06/14

6/30/2014

THE LIGHTS ON THIS VEHICLE ARE UNSAFE IN THAT THEY ONLY PROJECT FOR A SHORT DISTANCE AND DON'T ALLOW ANY LIGHT TO THE SIDES ON CORNERS OR ON UPSLOPES OF HIGHWAY DIPS. *TR

9/15/2014

7 more complaints are available in this category.

ENGINE

8 Reports6% of total

Previewing the first 2 complaint summaries.

I HAD MY TRUCK'S ECM REPROGRAMMED LAST FRIDAY (1/17) DUE TO RECALL #14V007, AND EARLIER THIS EVENING (1/24) THE CHECK ENGINE LIGHT CAME IN AND THE DIC SHOWED AN "ENGINE POWER IS REDUCED" MESSAGE. THE ENGINE RAN VERY SLUGGISH AND I PARKED IT AS GM RECOMMENDED TO DO IN THEIR RECALL LETTER. THIS IS THE SECOND TIME THIS HAS HAPPENED NOW. I THOUGHT THAT THE NEW SOFTWARE WAS SUPPOSED TO CORRECT THAT ISSUE? *TR

1/24/2014

VEHICLE HESITATES AND STALLS UPON ACCELERATION. ACCORDING TO GM DOCUMENT ID NUMBER [XXX] THIS IS A NORMAL CONDITION AND THEY HAVE PROGRAMMED THE VEHICLE TO DO THIS. IF GOING INTO TRAFFIC AND TRYING TO ACCELERATE, THE BUILT IN DELAY CAN CAUSE CLOSE CALLS AT BEST AND WORST CASE AN ACCIDENT. THIS COUPLED WITH THE TRANSMISSION ISSUES MENTIONED IN DOCUMENT ID NUMBER 3575856 CREATES THE PERFECT STORM FOR INJURY AND / OR DEATH. GM REFUSES TO ADDRESS THE ISSUE OTHER THAN TO SAY THEY FEEL IT IS NOT A PROBLEM. THIS COVERS VIRTUALLY ALL GM VEHICLES SINCE 2007 WITH THE 6 SPEED TRANSMISSION. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

3/5/2014

6 more complaints are available in this category.

STEERING

7 Reports5% of total

Previewing the first 2 complaint summaries.

2014 GMC SIERRA. CONSUMER WRITES IN REGARDS TO VEHICLE ELECTRICAL PANEL FROZE WHILE DRIVING. *SMD ALSO, THE POWER STEERING LOCKED UP, THE HEADLIGHTS DID NOT WORK PROPERLY AND THE ALARM SOMETIMES SOUNDED AFTER THE WAS REMOVED FROM THE IGNITION. ALSO, THE ENGINE LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER TWICE. HOWEVER, THE PROBLEM WAS STILL NOT RESOLVED. THERE WAS A HESITATION/LURCH COMING FROM THE TRANSMISSION, AND AN ISSUE WITH THE TIRE PRESSURE MONITORING SYSTEM. THE INSTRUMENT PANEL MALFUNCTIONED ON THE WAY BACK FROM THE DEALER. THE CHECK ENGINE LIGHT, ILLUMINATED SPORADICALLY. UPDATED 07/10/14 THE CONSUMER STATED THERE WAS A STEERING ISSUE, AS WELL. THE DEALER WAS UNABLE TO REPLICATE THE PROBLEMS. UPDATED 08/06/14

6/30/2014

I HAVE HAD MY TRUCK BACK THE DEALERSHIP 8 TIMES FOR THE SAME PROBLEM A VIBRATION THAT YOU CAN FEEL IN THE SEAT STEERING WHEEL AND GAS PEDAL, THEY HAVE HAD THE FACTORY ENGINEERS OUT THREE TIME AND LOOKED AND WORKED ON IT, FIRST TIME THE ENGINEER DID A COUPLE OF THINGS AND SAID THAT IT WAS UP TO FACTORY SPECS AND THAT WAS ALL HE COULD DO, I DROVE IT HOME AND BEFORE I WAS A BLOCK AWAY I COULD TELL THAT THEY DID NOT FIX IT, WHEN I GOT HOME I CALLED THE DEALER BACK AND TOLD HIM SO HE CALLED GM AND THE NEXT WEEK THEY SENT OUT THE SAME GUY AND THIS TIME HE WORKED ON 5 OR 6 OTHER THINGS THAT HE DID NOT WORK ON THE FIRST TIME AFTER TELLING ME THEY DID ALL THEY COULD DO THE FIRST TIME. RIGHT THERE TELLS YOU THEY ARE LYING IF THERE WAS NOTHING THEY COULD DO WHY COME BACK AND WORK ON IT AGAIN! BUT AFTER HE GOT DONE IT WAS JUST LIKE IT WAS, I WILL TRY TO LIST SOME OF THE STUFF THAT THEY SAID THEY DID, 1) ROTATED THE TIRES 2) RE-TORQUE THE WHEELS 3) BALANCED THE TIRES 4) BALANCED THE DRIVE SHAFT 5) SHIMMIED THE REAR END 6) CHECKED THE REAR SHOCKS 7) TOOK OFF DEALER INSTALLED MUD FLAPS! 8) CHECKED THE EXHAUST SYSTEM, I KNOW BUT THEY DID 9) ROAD FORCED TESTED THE TIRES TWICE AND REPLACED TWO THE SECOND TIME AND RE-BALANCED THE TIRES. AND I'M SURE I HAVE NOT LISTED ALL THEY HAVE TRIED, AND STILL I HAVE THE SAME PROBLEM, THIRD TIME THE ENGINEER CAME OUT HE HAD THE REGIONAL MANAGER WITH HIM AND THIS TIME THEY DROVE MY TRUCK AND 2 OTHERS THEY HAD ON THE LOT AND SAID THAT THEY ARE SIMILAR TO MINE AND THEY WAS NOT GOING TO DO ANY MORE TO MY TRUCK THAT THEY HAD DONE ALL THEY COULD OR WOULD DO BUT IF I HAD ANY OTHER PROBLEMS TO BRING IT BACK. *TR

10/1/2014

5 more complaints are available in this category.

SUSPENSION

5 Reports4% of total

Previewing the first 2 complaint summaries.

I HAVE A 2014 GMC SIERRA 1500 CREW CAB. THE VEHICLE HAS A VIBRATION ABOVE 40 MPH SINCE I PURCHASED THE VEHICLE NEW IN JULY 2013. I HAVE HAD IT TO THE DEALERSHIP 6 TIMES, OF 4 TIRES ON THE VEHICLE THEY HAVE REPLACE 5 TIRES. THE VEHICLE STILL HAS THE VIBRATION AND AT HIGH SPEEDS, THE VIBRATION INCREASES. *TR

12/13/2013

WHEN WE TOOK OUR NEW TRUCK FOR A TEST DRIVE WE NOTICED A VIBRATION. THE DEALERSHIP SUPPOSEDLY CHECKED IT OUT AND TOOK CARE OF IT. WHEN TOOK DELIVERY OF THE TRUCK AND DROVE IT HOME THE VIBRATION WAS BETTER AT A SLOWER SPEED BUT INCREASED AS THE SPEED INCREASED. WE RETURNED THE TRUCK TO THE DEALERSHIP AND THEY CHECKED IT OUT AND SAID THAT THEY BALANCED THE TIRES AND ROTATED THE DRIVESHAFT 180 DEGREES. IT SEEM TO BE A LITTLE BETTER. BECAUSE WE TAKE THIS TRUCK TO FLORIDA FOR THE WINTER AND IT IS LOADED MY HUSBAND DECIDED THAT HE WOULD PUT SOME WEIGHT IN THE BACK OF IT TO SEE HOW IT WOULD AFFECT IT. THE VIBRATION WAS BETTER AT A SLOWER SPEED AND WORSE AT A HIGH SPEED ON THE HIGHWAY. THE TRUCK HAS NOW BEEN BACK AT THE DEALERSHIP FOR A WEEK AND WE HAVE NOT HEARD ANYTHING IN REGARDS TO IT. THEY ARE SUPPOSED TO BE DOING AN ELECTRONIC VIBRATION ANALYSIS ON IT. MY HUSBAND HAS RESEARCHED THIS PROBLEM ON THE INTERNET AND THERE SEEMS TO BE A LOT OF COMPLAINTS ABOUT THIS PROBLEM. HOPEFULLY PEOPLE ARE REGISTERING THEM ON YOUR WEBSITE. *TR

10/18/2014

3 more complaints are available in this category.

AIR BAGS

5 Reports4% of total

Previewing the first 2 complaint summaries.

I WAS STOPPED AT A RED LIGHT BEHIND 2 OTHER VEHICLES. A VEHICLE FROM BEHIND STRUCK ME AT APPX 40 MPH AND RAMMED ME INTO VEHICLE IN FRONT OF ME. THE CAB OF MY TRUCK FILLED WITH A WHITE. "SMOKE". I WAS TOLD BY BOTH FIREMEN AND WRECKER DRIVER AIRBAGS HAD ACTIVATED BUT NOT DEPLOYED. MY WIFE WAS WITH ME. BOTH OUR SEATBELTS LOCKED UP AS THEY SHOULD. CONCERN IS HAD THE AIRBAG DEPLOYED IT MIGHT HAVE HELPED WITH BACK AND SHOULDER INJURY. MAYBE WE WOULD NOT HAVE BOUNCED AROUND AS MUCH. I NOTIFIED GMC AND THEY MADE A CASE FILE BUT AFTER A WEEK STILL HAVE NOT CONTACTED ME. EVEN AFTER NUMEROUS VOICE MESSAGES LEFT. *TR

1/28/2014

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

8/9/2014

3 more complaints are available in this category.

VISIBILITY/WIPER

5 Reports4% of total

Previewing the first 2 complaint summaries.

THIS VEHICLE HAS THE WORST HEADLIGHTS OF ANY NEW VEHICLE I'VE EVER OWNED. IT SEEMS DANGEROUS TO DRIVE AT NIGHT, AND I AVOID IT WHERE I CAN. THE BEAM PATTERN IS AWFUL AND THE ILLUMINATION IS POOR. I'VE BEEN DRIVING CARS WITH PROJECTOR HEADLIGHTS FOR YEARS, SO I KNOW THAT IS NOT THE REAL ISSUE. THESE LIGHTS ARE JUST POORLY DESIGNED OR CHEAP. TRIPS TO THE DEALER ARE UNFRUITFUL. THE DEALER KNOWS THEY ARE POOR, BUT CAN DO NOTHING EXCEPT BE SURE EVERYTHING IS PROPERLY ADJUSTED. IF YOU ARE LOOKING AT BUYING A 2014 GMC PICKUP, BUY SOMETHING ELSE. THEY ARE THAT BAD. I JUST KNOW I'M GOING TO HIT A DEER SOON ENOUGH. *TR

11/6/2014

THE HEADLIGHT PERFORMANCE ON THIS TRUCK IS THE WORST I'VE SEEN IN ANY VEHICLE, BUT FOR A TRUCK, I CANNOT BELIEVE THEY ARE ALLOWED ON THE ROAD AT NIGHT. THE OWNER'S MANUAL STATES THEY ARE FACTORY SET AND DO NOT NEED ADJUSTMENT. THAT INFORMATION WAS OBVIOUSLY NOT CHECKED DURING THE QUALITY CHECK OR CHECKED BUT FELT IT WAS AS GOOD AS IT GETS. ON HIGH BEAM, THE DRIVER'S SIDE LIGHT IS POINTING SO FAR UP, IT'S IN THE TREES AND ABOVE THE ROAD. THE RIGHT SIDE HIGH AND LOW BEAMS ARE INADEQUATE FOR ALL PURPOSES, ESPECIALLY SEEING AROUND CURVES AND TURNS. YOU ARE LITERALLY BLIND ON A DARK STREET, EVEN WITH THE FOG LIGHTS. VERY POOR ILLUMINATION OF THE ROAD. I'VE TAKEN IT IN TO THE DEALER FOR ADJUSTMENT AND THEY DID NOT CHANGE ANYTHING. THIS WILL BE THE LAST GM PRODUCT I BUY SINCE IT SEEMS THE LAST THREE VEHICLES I'VE OWNED HAD ISSUES THAT COULD NOT BE RESOLVED. AND I AM A MEMBER OF THE GM FAMILY. FOR THE PRICE OF THESE VEHICLES, THEY SHOULD BE TOP QUALITY. GM SHOULD BE ASHAMED OF THE QUALITY THEY DELIVER TO CUSTOMERS FOR VEHICLES PRICED OVER $45K. *TR

12/29/2014

3 more complaints are available in this category.

STRUCTURE:BODY

4 Reports3% of total

Previewing the first 2 complaint summaries.

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

8/9/2014

WHILE ON VACATION I BOUGHT A 2014 SIERRA DENALI THAT WAS PREVIOUSLY DRIVEN BY A GM EXECUTIVE AND BOUGHT BY THE DEALERSHIP IN W.VA. AFTER COMING HOME I LOOKED UNDERNEATH AND SAW THAT THE FRAME AND DRIVESHAFT WERE COVERED IN RUST. HAVE READ OTHER COMPLAINTS ON THE INTERNET ABOUT THIS SAME PROBLEM WITH THIS YEAR AND MODEL TRUCK. *TR

10/14/2014

2 more complaints are available in this category.

EXTERIOR LIGHTING:HEADLIGHTS

4 Reports3% of total

Previewing the first 2 complaint summaries.

TL* THE CONTACT OWNS A 2014 GMC SIERRA. THE CONTACT STATED THAT WHILE DRIVING AFTER DARK, THE FRONT HALOGEN HEADLIGHTS BECAME DIM. THE CONTACT STATED THAT THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE FRONT HEADLIGHTS NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 700.

12/5/2014

TL* THE CONTACT OWNS A 2014 GMC SIERRA. WHILE DRIVING VARIOUS SPEEDS AT NIGHT, THE HEADLIGHTS WERE DIM AND CAUSED POOR VISIBILITY. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VIN AND FAILURE MILEAGE WERE NOT AVAILABLE.

12/12/2014

2 more complaints are available in this category.

SEATS

2 Reports2% of total

Previewing the first 2 complaint summaries.

I HAVE A 2014 GMC SIERRA SLT WITH POWER SEATS. THE DRIVER'S SEAT IS LOOSE (NOT THE SAME ISSUE THAT WAS RECENTLY RECALLED WITH MANUALLY RECLINING SEATS). WHEN YOU MAKE A SHARP TURN AT SPEED THE DRIVERS SEAT SLIDES LEFT OR RIGHT DEPENDING ON THE DIRECTION YOU ARE TURNING. THERE ARE NUMEROUS COMPLAINTS IDENTICAL TO THIS ONE ON THE FORUMS ONLINE AND GM CLAIMS THEY HAVE NO SOLUTION AND TO SPEAK WITH THE LOCAL DEALER. MY LOCAL DEALER DOES NOT NOW KNOW WHAT TO DO AND SAYS THEY CANNOT FIX IT. THIS IS A VERY DANGEROUS SITUATION AND COULD CAUSE AN ACCIDENT! PLEASE HAVE GM FIX IT OR ISSUE A RECALL! *TR

11/12/2013

I HAVE HAD MY TRUCK BACK THE DEALERSHIP 8 TIMES FOR THE SAME PROBLEM A VIBRATION THAT YOU CAN FEEL IN THE SEAT STEERING WHEEL AND GAS PEDAL, THEY HAVE HAD THE FACTORY ENGINEERS OUT THREE TIME AND LOOKED AND WORKED ON IT, FIRST TIME THE ENGINEER DID A COUPLE OF THINGS AND SAID THAT IT WAS UP TO FACTORY SPECS AND THAT WAS ALL HE COULD DO, I DROVE IT HOME AND BEFORE I WAS A BLOCK AWAY I COULD TELL THAT THEY DID NOT FIX IT, WHEN I GOT HOME I CALLED THE DEALER BACK AND TOLD HIM SO HE CALLED GM AND THE NEXT WEEK THEY SENT OUT THE SAME GUY AND THIS TIME HE WORKED ON 5 OR 6 OTHER THINGS THAT HE DID NOT WORK ON THE FIRST TIME AFTER TELLING ME THEY DID ALL THEY COULD DO THE FIRST TIME. RIGHT THERE TELLS YOU THEY ARE LYING IF THERE WAS NOTHING THEY COULD DO WHY COME BACK AND WORK ON IT AGAIN! BUT AFTER HE GOT DONE IT WAS JUST LIKE IT WAS, I WILL TRY TO LIST SOME OF THE STUFF THAT THEY SAID THEY DID, 1) ROTATED THE TIRES 2) RE-TORQUE THE WHEELS 3) BALANCED THE TIRES 4) BALANCED THE DRIVE SHAFT 5) SHIMMIED THE REAR END 6) CHECKED THE REAR SHOCKS 7) TOOK OFF DEALER INSTALLED MUD FLAPS! 8) CHECKED THE EXHAUST SYSTEM, I KNOW BUT THEY DID 9) ROAD FORCED TESTED THE TIRES TWICE AND REPLACED TWO THE SECOND TIME AND RE-BALANCED THE TIRES. AND I'M SURE I HAVE NOT LISTED ALL THEY HAVE TRIED, AND STILL I HAVE THE SAME PROBLEM, THIRD TIME THE ENGINEER CAME OUT HE HAD THE REGIONAL MANAGER WITH HIM AND THIS TIME THEY DROVE MY TRUCK AND 2 OTHERS THEY HAD ON THE LOT AND SAID THAT THEY ARE SIMILAR TO MINE AND THEY WAS NOT GOING TO DO ANY MORE TO MY TRUCK THAT THEY HAD DONE ALL THEY COULD OR WOULD DO BUT IF I HAD ANY OTHER PROBLEMS TO BRING IT BACK. *TR

10/1/2014

STRUCTURE

2 Reports2% of total

Previewing the first 2 complaint summaries.

TL* THE CONTACT OWNS A 2014 GMC SIERRA. THE CONTACT STATED THAT THE VEHICLE WAS DESIGNED WITH LARGE HOLES IN THE GRILL. WHILE DRIVING VARIOUS SPEEDS, WEEDS WOULD ENTER THE GRILL AND ACCUMULATE NEAR THE RADIATOR. AS A RESULT, THE VEHICLE OVERHEATED. THE DEALER STATED THAT THE VEHICLE WAS DESIGNED IN THAT FASHION. NO REPAIRS WERE MADE AND THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS 10. UPDATED 8/22/14*CN

7/14/2014

WHEN WE TOOK OUR NEW TRUCK FOR A TEST DRIVE WE NOTICED A VIBRATION. THE DEALERSHIP SUPPOSEDLY CHECKED IT OUT AND TOOK CARE OF IT. WHEN TOOK DELIVERY OF THE TRUCK AND DROVE IT HOME THE VIBRATION WAS BETTER AT A SLOWER SPEED BUT INCREASED AS THE SPEED INCREASED. WE RETURNED THE TRUCK TO THE DEALERSHIP AND THEY CHECKED IT OUT AND SAID THAT THEY BALANCED THE TIRES AND ROTATED THE DRIVESHAFT 180 DEGREES. IT SEEM TO BE A LITTLE BETTER. BECAUSE WE TAKE THIS TRUCK TO FLORIDA FOR THE WINTER AND IT IS LOADED MY HUSBAND DECIDED THAT HE WOULD PUT SOME WEIGHT IN THE BACK OF IT TO SEE HOW IT WOULD AFFECT IT. THE VIBRATION WAS BETTER AT A SLOWER SPEED AND WORSE AT A HIGH SPEED ON THE HIGHWAY. THE TRUCK HAS NOW BEEN BACK AT THE DEALERSHIP FOR A WEEK AND WE HAVE NOT HEARD ANYTHING IN REGARDS TO IT. THEY ARE SUPPOSED TO BE DOING AN ELECTRONIC VIBRATION ANALYSIS ON IT. MY HUSBAND HAS RESEARCHED THIS PROBLEM ON THE INTERNET AND THERE SEEMS TO BE A LOT OF COMPLAINTS ABOUT THIS PROBLEM. HOPEFULLY PEOPLE ARE REGISTERING THEM ON YOUR WEBSITE. *TR

10/18/2014

UNKNOWN OR OTHER

2 Reports2% of total

Previewing the first 2 complaint summaries.

ON 12/12/14, MY HUSBAND CAME HOME AT APPROXIMATELY 2:00 PM AND APPROXIMATELY AN HOUR THE GARAGE WAS ON FIRE AND FIRE APPEARS TO HAVE STARTED IN THE TRUCK. GM CAME OUT AND INVESTIGATED WITH USAA BUT SINCE THERE IS NOTHING LEFT OF THE TRUCK THE CAUSE IS UNDETERMINED. THE ENTIRE HOUSE IS A TOTAL LOSS. THERE IS NO ROOF LEFT TO TRUCK. GM TRYING TO BLAME ON A REFRIDGERATOR CORD OR CORD IN WORKSHOP OR SPRINKLING SYSTEM. *JS

2/6/2015

THE FACTORY SUPPLIED RUNNING BOARDS HAVE TREADS THAT FAIL TO PROVIDE ANY TRACTION FOR FEET WHILE ENTERING OR EXITING. THE TREADS NEED TO BE ROTATED 90 DEGREES AND MADE OF A SOFTER RUBBER WITH A DEEPER AND MORE AGGRESSIVE TREAD PATTERN. AS THEY EXIST THEY ARE VERY SLIPPERY ESPECIALLY WHEN WET OR FROZEN. GIVEN THE ADDED HEIGHT OF TRUCKS IT REQUIRES SOME USE OF THE RUNNING BOARDS TO ENTER/EXIT THE TRUCK. ESPECIALLY WHEN YOU ARE 68. AS DESIGNED AND MANUFACTURED THEY ARE ACTUALLY AN ACCELERANT IN SLIPPING FEET. I FEEL THEY ARE OF DEFECTIVE DESIGN AND MANUFACTURE AND COULD/SHOULD BE MADE SAFER. I FELL THREE TIMES IN THE PAST MONTHS WHILE EXITING MY SIERRA 1500.

11/3/2015

EQUIPMENT ADAPTIVE/MOBILITY

1 Report1% of total

Previewing the first 1 complaint summaries.

VEHICLE HESITATES AND STALLS UPON ACCELERATION. ACCORDING TO GM DOCUMENT ID NUMBER [XXX] THIS IS A NORMAL CONDITION AND THEY HAVE PROGRAMMED THE VEHICLE TO DO THIS. IF GOING INTO TRAFFIC AND TRYING TO ACCELERATE, THE BUILT IN DELAY CAN CAUSE CLOSE CALLS AT BEST AND WORST CASE AN ACCIDENT. THIS COUPLED WITH THE TRANSMISSION ISSUES MENTIONED IN DOCUMENT ID NUMBER 3575856 CREATES THE PERFECT STORM FOR INJURY AND / OR DEATH. GM REFUSES TO ADDRESS THE ISSUE OTHER THAN TO SAY THEY FEEL IT IS NOT A PROBLEM. THIS COVERS VIRTUALLY ALL GM VEHICLES SINCE 2007 WITH THE 6 SPEED TRANSMISSION. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

3/5/2014

TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS

1 Report1% of total

Previewing the first 1 complaint summaries.

2014 GMC SIERRA. CONSUMER WRITES IN REGARDS TO VEHICLE ELECTRICAL PANEL FROZE WHILE DRIVING. *SMD ALSO, THE POWER STEERING LOCKED UP, THE HEADLIGHTS DID NOT WORK PROPERLY AND THE ALARM SOMETIMES SOUNDED AFTER THE WAS REMOVED FROM THE IGNITION. ALSO, THE ENGINE LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER TWICE. HOWEVER, THE PROBLEM WAS STILL NOT RESOLVED. THERE WAS A HESITATION/LURCH COMING FROM THE TRANSMISSION, AND AN ISSUE WITH THE TIRE PRESSURE MONITORING SYSTEM. THE INSTRUMENT PANEL MALFUNCTIONED ON THE WAY BACK FROM THE DEALER. THE CHECK ENGINE LIGHT, ILLUMINATED SPORADICALLY. UPDATED 07/10/14 THE CONSUMER STATED THERE WAS A STEERING ISSUE, AS WELL. THE DEALER WAS UNABLE TO REPLICATE THE PROBLEMS. UPDATED 08/06/14

6/30/2014

VEHICLE SPEED CONTROL

1 Report1% of total

Previewing the first 1 complaint summaries.

TL* THE CONTACT OWNS A 2014 GMC SIERRA. THE CONTACT STATED THAT WHILE ATTEMPTING TO ACCELERATE FROM A TRAFFIC LIGHT, THE ACCELERATOR PEDAL WAS DEPRESSED BUT THE VEHICLE HESITATED TO ACCELERATE. THE DEALER WAS UNABLE TO DIAGNOSE THE FAILURE AND ADVISED THE CONTACT THAT THE VEHICLE WAS WORKING UP TO SPECIFICATIONS. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 3,000.

10/31/2014

FUEL/PROPULSION SYSTEM

1 Report1% of total

Previewing the first 1 complaint summaries.

THE TRUCK WAS AVERAGING ABOUT 20 MPG BUT SHIFTING ERRATICALLY LIKE IT COULDN'T DECIDE WHAT GEAR TO BE IN. AFTER USING THE 4WD THE FIRST TIME THE MPG DROPPED OFF TO ABOUT 17 AND HAS BEEN DECLINING STEADILY CURRENTLY I GET 14 TO 15 MPG AND DRIVE 150 MILES PER DAY MOSTLY HIGHWAY. I HAVE TAKEN IT BACK TO THE DEALER TWICE THEY SAID THE COMPUTER COULDN'T GET USED TO MY DRIVING STYLE AND REPROGRAMMED THE COMPUTER. WHEN I TOOK IT BACK ABOUT THE MILEAGE A GUY CAME OUT AND SAID HE COULD TELL IF SOMETHING WAS STUCK AND SWITCHED THE 4WD A FEW TIME AND SAID IT WAS FINE. MY MPG IS GETTING WORSE AND IT SLAMS IN AND OUT OF GEAR 2-3 TIMES IN A MATTER OF SECONDS WHILE SUSTAINING A STEADY HIGHWAY SPEED ON A FLAT SURFACE. *TR

1/18/2015

LATCHES/LOCKS/LINKAGES

1 Report1% of total

Previewing the first 1 complaint summaries.

TL* THE CONTACT OWNS A 2014 GMC SIERRA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 70 MPH, THE FOUR DOORS UNLOCKED INDEPENDENTLY. THE FAILURE RECURRED SEVERAL TIMES. THE VEHICLE WAS TAKEN TO THE DEALER BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 13,000.

1/20/2015

STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS

1 Report1% of total

Previewing the first 1 complaint summaries.

I PURCHASED NEW IN 2014 A GMC SIERRA 4X4 I TAKE VERY GOOD CARE OF MY VEHICLES I PARK INSIDE A HEATED GARAGE AN WASH ONCE SOMETIMES TWICE A WEEK, INCLUDING UNDERCARRIAGE. IN JANUARY WHILE WASHING UNDERCARRIAGE I NOTICED THE COATING ON THE FRAME IS COMPLETELY COMING OFF THE FRAME WITH JUST THE SPRAY OF GARDEN HOSE. I NOTIFIED THE SERVICE DEPARTMENT AT UPSTATE CHEVROLET IN ATTICA AT MY LAST SERVICE MARCH 16 2015. THE DEALERSHIP WILL ALSO VERIFY HOW WELL I MAINTAIN MY VEHICLES. I AM NOW WAITING FOR A RESPONSE! IN THE MEAN TIME I WENT ON LINE TO SEE IF ANYONE ELSE IS HAVING SAME PROBLEM AND TO NO SURPRISE ALOT OF GMC TRUCK OWNERS ARE COMPLAINING OF THIS EXISTING PROBLEM AS WELL. PLEASE CONTACT ME. MY FAMILY AN I HAVE BEEN DEDICATED GM OWNERS AND I AM ASKING IF THIS FALLS UNDER THE LEMON LAW. THANK YOU FOR YOUR CONCERN. *TR

3/22/2015

STRUCTURE:BODY:TAILGATE

1 Report1% of total

Previewing the first 1 complaint summaries.

TL* THE CONTACT OWNS A 2014 GMC SIERRA. THE CONTACT STATED THAT THE HEADLIGHTS WERE DIM AND PROVIDED POOR VISIBILITY. THE FAILURE WAS WORSE IN RAINY CONDITIONS. THE VEHICLE WAS TAKEN TO A LOCAL DEALER WHO STATED THAT THE LIGHTS LACKED VOLUME; HOWEVER, THEY DID NOT OFFER ANY REMEDY. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 23,000. UPDATED 02/12/16*LJ THE CONSUMER STATED THE TAIL GATE ALLOWED DIRT TO ENTER INSIDE THE TRUCK. UPDATED 03/03/16

11/6/2015

ELECTRONIC STABILITY CONTROL (ESC)

1 Report1% of total

Previewing the first 1 complaint summaries.

THERE IS A EXTREMELY DANGEROUS ELECTRICS ISSUE WITH MY 2014 GMC SIERRA 1500 ALL TERRAIN. IN THE LAST 18 MONTHS MY TRUCK HAS LOCKED THE STEERING AT LOW SPEED WHILE TURNING 8 TIMES. (I COULD HAVE EASILY BROKEN A FINGER A LOST CONTROL OF MY TRUCK) .ON 5 OF THE TIMES I HAD STEERING ISSUE THE TRUCK HAD NO POWER TO ANYTHING INCLUDING KEY FOBS FOR A PERIOD OF 10 TO 15 MINUTES. THEN THE TRUCK WILL POWER UP AGAIN. FORTUNATELY THESE ISSUES HAVE OCCURRED AT LOW SPEED. THIS HAS HAPPEN 8 TIMES IN THE LAST 18 MONTHS . IT HAS BEEN TO DEALERSHIP FOR SERVICE REGARDING THIS ISSUE THEY CHANGED THE BATTERY AFTER ONLY 18 MONTHS (10/2015) THE ISSUE OCCUR AGAIN 2 DAYS AGO WHILE TRAVELING ON THE FREEWAY AT 70 MPH MY TRUCK SHUT DOWN NO POWER THEN IN LESS THAN A SECOND IT POWERED UP AGAIN ALL THE SETTING ON MY RADIO, CLIMATE CONTROL CHANGED.THAT DAY I STOPPED TO GET GAS GOT BACK IN MY TRUCK PULLED AWAY FROM THE PUMP THE STEERING LOCKED TRUCK SHUT DOWN AGAIN FOR 20 MINUTES. THIS TRUCK IS CURRENTLY AT A DEALERSHIP THEY STILL CAN NOT DIAGNOS THE ISSUE. I'M EXTREMLY CONCERN THAT SOMEONE COULD BE SERIOUSLY INJURED OR KILLED IF THIS WAS TO HAPPEN WHILE OPERATING THIS TRUCK. I DID SEE THAT MAY OTHER OWNER OF GMC SIERRA HAVE EXPRESSED SIMILAR CONCERNS. THE ISSUES NEEDS TO BE ADDRESSED IMMEDIATELY. AS FOR MYSELF I PLAN TO THIS TRUCK AFTER THE DEALERSHIP ATTEMPTS ANOTHER REPAIR.

3/24/2016

SEAT BELTS

1 Report1% of total

Previewing the first 1 complaint summaries.

The contact owns a 2014 GMC Sierra. The contact stated that while driving at 42 MPH, she was involved in a three-vehicle accident after a vehicle involved in another accident ricocheted and hit her vehicle. The driver's side air bag exploded but did not deploy. Black smoke was released from the steering wheel and the air bag fell on the contact's left leg. The driver seat belt retractor fell apart during the accident which sliced the top part of the contact's ear; in addition, the failure sent a part of the contact's earing into her ear canal. The driver of the vehicle that was originally hit in the accident died the next day in the hospital; another passenger in that same vehicle was critically injured. The contact was treated days later at a hospital for a severe burn to the left leg due to the airbag. Her leg remained infected despite the treatment received at the hospital. The contact's ear was not treated. A police report was filed. The contact's vehicle was initially towed to an independent mechanic and then to a friend's home. The contact's insurance had yet to make a decision on the repair for the vehicle. Upon investigation, the contact discovered NHTSA Campaign Number: 21V245000(Seat Belts) and 17V437000(Air Bags, Seat Belts) which she linked to her failure. The dealer nor the manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was 93,622.

7/6/2022

About This Data

Data and Methodology

MethodologyHow we score →

Scores are derived from NHTSA recalls and owner complaints, normalized by vehicle segment averages.

FAQ

What are the most common owner complaints for the 2014 GMC Sierra?

The most reported complaint category for the 2014 GMC Sierra is EXTERIOR LIGHTING, with 60 owner reports. That is about 45% of all complaints logged here. Other recurring themes include EXTERIOR LIGHTING, POWER TRAIN, ELECTRICAL SYSTEM.

Are complaints about the 2014 GMC Sierra a serious warning sign?

Potentially. 35 complaint reports fall into higher-attention systems such as brakes, steering, engine, powertrain, fuel, suspension, airbags, or electrical components. That does not prove every vehicle has a defect, but repeated complaints in those systems justify a more careful pre-purchase inspection.

How should buyers use complaint data for the 2014 GMC Sierra?

Use complaints as an early pattern to investigate, not a standalone verdict. Start with the top complaint categories, compare those themes against the recall report and maintenance guide, then inspect service records for evidence that the same problem areas were already addressed. If the same issue appears repeatedly across complaints and recalls, treat it as a real ownership-risk flag.

Are complaints about the 2014 GMC Sierra severe?

35 complaint reports involve higher-attention systems such as brakes, steering, engine, powertrain, fuel, suspension, airbags, or electrical components, which is enough to justify a focused inspection before purchase.

Complaint list entries are sourced from owner-submitted NHTSA ODI records.

Read complaint summaries

GMC Sierra: How should complaint data influence buying decisions?

Use complaint patterns together with recalls and maintenance guidance to estimate ownership risk and inspection priorities.

Carfocal links complaint data directly to recall and maintenance routes for the same model year.

Return to full vehicle report
Complaint entries
132
Top-topic view
5 grouped topics shown
Primary source
NHTSA ODI owner complaint records

We may earn a commission via links on this page.

In this guide

  1. 01Overview
  2. 02Common Problems
  3. 03Owner Complaints
  4. 04Data and Methodology

Start here

Buyer guideMaintenance guideRecall report

Get recall and ownership alerts for the 2014 GMC Sierra

Get our free model-year alerts and ownership updates.

Sign Up

We may earn a commission if you buy parts through our links. Learn more.

Carfocal

Automotive Research

Real data on vehicle reliability, safety, and ownership costs.

  • Used Car Research
  • Reliability Rankings
  • Buying Guides

  • Data Sources & Methodology
  • Editorial Standards
  • Contact
  • Privacy Policy
  • Legal Disclosures
  • Terms of Service

© 2026 Carfocal · All Rights Reserved