GMC Complaints

REAR MAIN SEAL FAILED DUE TO CLOGGED PCV VALVE. ONE DAY THE CAR SEAMED FINE, NO VISABLE OIL LEAKS, THE NEXT DAY, DAUGHTER BACKED OUT OF DRIVEWAY AND THERE WAS A LARGE PUDDLE OF OIL UNDER HER VEHICLE. SHE DIDN'T SEE THE PUDDLE, ALL THE OIL LEAKED OUT OF THE VEHICLE, NO ENGINE LIGHT CAME ON, HAD TO HAVE IT TOWED TO SHOP, $1200 ESTIMATE TO REPAIR. THIS IS A KNOWN ISSUE WITH GM.

TL* THE CONTACT OWNS A 2016 GMC SIERRA 2500. ON SEVERAL OCCASIONS, THE VEHICLE STALLED WITHOUT WARNING AT ANY RATE OF SPEED. MASTRIA BUICK GMC (1525 NEW STATE HWY, RAYNHAM, MA 02767, (508) 880-7000) WAS NOTIFIED OF THE FAILURE SEVERAL TIMES. THE VEHICLE WAS TAKEN TO THE DEALER NUMEROUS TIMES, BUT THEY COULD NOT DUPLICATE OR DIAGNOSE THE CAUSE OF THE FAILURE. THE MANUFACTURER WAS NOTIFIED AND STATED THAT THE MATTER WOULD BE ESCALATED. THE CONTACT HAD NOT YET RECEIVED A RESPONSE FROM THE MANUFACTURER. THE FAILURE MILEAGE WAS NOT AVAILABLE.

REAR WINDOW SHATTERING. APPARENTLY FROM WHAT I HAVE READ, IT HAS SOMETHING TO DO WITH REAR DEFROSTER SHORTING OUT AND OVER HEATING WINDOW.

THE BULBS IN THE TAIL LIGHTS CORRODE IN PLACE DUE TO EXCESS ROAD GRIME (SALT, SAND, ETC.) BEING SPLASHED UP ON THEM. THIS CAUSES THEM TO BURN OUT PREMATURELY AND REMOVAL IS IMPOSSIBLE DUE TO THE CORROSION OF THE BULB INTO THE SOCKET. THIS RESULTS IN HAVING TO REPLACE THE ENTIRE WIRING HARNESS. ACCORDING TO MY LOCAL GMC DEALERSHIP (WEST HERR), THIS IS A COMMON PROBLEM THAT GM ISN'T COVERING. SO, I HAD TO PAY FOR A NEW WIRING HARNESS OUT OF POCKET IN ORDER TO REPLACE ONE OF THE TAIL LIGHT BULBS.

2017 GMC CANYON EQUIPPED WITH DIESEL ENGINE WILL SPORADICALLY SHUT-OFF WHILE OPERATING WHEN DRIVING WITH A TANK THAT IS LESS THAN 1/4 FULL. ON 1/31/19 (ODOMETER ~14200 MILES) VEHICLE WAS DRIVING FINE WITH AN AMBIENT AIR TEMPERATURE OF ROUGHLY 0F, FUEL TANK AT 1/3, WHEN ALL OF SUDDEN THE ENGINE DIED IN TRAFFIC WITH NO WARNING. VEHICLE THEN NEEDED TO BE TOWED TO THE DEALERSHIP FOR SERVICE AT WHICH POINT THEY COULDN'T FIND ANYTHING WRONG WITH IT. AGAIN ON 3/4/19 (ODOMETER ~15100 MILES) VEHICLE WAS DRIVING FINE WHEN THE DASH LIT UP WITH MULTIPLE CODES AND TRUCK WENT INTO REDUCED POWER MODE, AMBIENT AIR TEMPERATURE 10F GAS TANK AT 1/8TH. GOT OUT OF TRUCK AND IT SMELLED LIKE IT WAS ON FIRE. CALLED TO HAVE VEHICLE TOWED TO DEALERSHIP. VEHICLE KEPT FOR MULTIPLE DAYS AT DEALERSHIP, DEALER WORKED WITH GM TO IDENTIFY AN ISSUE AND NO FIX WAS FOUND. DEALER CALLED TO INSTRUCT ME TO NOT DRIVE THE VEHICLE WITH LESS THAN 1/4 TANK DURING WINTER AND ALSO MENTIONED THAT THIS HAS BEEN AN ISSUE WITH A FEW OTHER CANYON AND TERRAIN DIESEL MODELS. GM NEEDS TO FIND A FIX FOR THIS! IT IS TOTALLY UNSAFE AND UNACCEPTABLE TO HAVE A TRUCK THAT WILL UNEXPECTEDLY LOOSE TOTAL POWER WHEN DRIVING DUE TO A DESIGN FLAW IN THEIR SYSTEMS.

LED BRAKE LIGHTS FAILED IN BOTH TAIL LAMPS. LED IS SUPPOSED TO BE A LONGER LASTING ALTERNATIVE TO STANDARD LIGHTS. UNFORTUNATELY THE WAY GM DESIGNED THESE YOU CANNOT SERVICE OR REPAIR THEM LIKE YOU CAN WITH A TRADITIONAL BULB. AFTER MUCH RESEARCH IT APPEARS THAT THERE IS A THIN STRIP THAT BREAKS IN THE CIRCUIT CAUSING BOTH TAILLAMPS TO LOOSE FUNCTIONALITY, THERE IS NO BULB OUT WARNING SO THE DRIVER IS NOT ALERTED. AND WITH NO BRAKE LAMPS THIS COULD RESULT IN A CRASH OR INJURY.

I WAS DRIVING WHEN MY CAR STARTED MAKING A NOISE AND VIBRATION. I DROVE IT 3 MILES AS THE VIBRATION AND NOISE WAS GETTING WORSE TO THE DEALERSHIP.ACCORDING TO THE DEALERSHIP THE ENGINE PCV VALVE BECAME CLOGGED WITH SLEDGE OR ICE AND PUSHED THE OIL OUT THE REAR SEAL OF THE ENGINE CAUSING FAILURE. IN ADDITION THE ECM FAILED TO DISPLAY A LOW ENGINE OIL WARNING OR A CHECK ENGINE WARNING. AFTER TALKING TO THE MECHANIC AT THE DEALERSHIP AND RESEARCHING ON THE INTERNET, THIS IS A DESIGN FLAW FOR THE 2.4 ECOTC ENGINE THAT GM HAS FAILED TO ADDRESS AND IS CAUSING PEOPLE THOUSANDS OF DOLLARS. MY REPAIR WILL COST $3000.00. RECALL 14882

IST TIME-CAR STATIONARY-STARTED CAR AND IT STARTED SHAKING-TRACTIONARY CONTROL WARNING CAME ON-TURNED CAR OFF-WAITED A FEW MINUTES AND TURNED IT ON AND IT WAS FINE -THE NEXT DAY AFTER DRIVIING 250 MILES IT HAPPENED AGAIN AFTER STOPPING FOR A TOLL BOOTH-THE CAR SHUT DOWN WITH THE SAME WARNING-AFTER TWO TRIES IT STARTED AND WE DROVE TO A CHEVROLET DEALER AND THEY REPLACED THE THROTTLE BODY

THE PLASTIC BUSHINGS USED IN THE WIPER LINKAGE ASSEMBLY ARE POOR QUALITY AND REGULAR USE WEAKENS THEM OR THEY BECOME CORRODED. THE BUSHING CONNECTING THE WIPER TRANSMISSION TO THE REST OF LINKAGE ASSEMBLY DETACHED FROM ITSELF WHILE I WAS DRIVING DURING A SNOW STORM CAUSING MY WINDSHIELD WIPERS TO STOP WORKING COMPLETELY, LEAVING ME WITH NO VISIBILITY. THE CAR HAD TO STAY PARKED WHERE IT WAS UNTIL THE WEATHER CLEARED.

PASSENGER SIDE REAR BRAKE LIGHT WAS WORKING INTERMITTENTLY AND NOW HAS STOPPED WORKING ALL TOGETHER. THE BRAKE LIGHT UNIT IS A SEALED UNIT THAT CAN NOT BE SERVICED, IT MUST BE REPLACED ENTIRELY. VERY COMMON PROBLEM ON THIS MODEL DUE TO A FAULTY BRAKE LIGHT ASSEMBLY. FAILURE OF BRAKE LIGHTS PUTS THE SAFETY OF MY FAMILY IN JEOPARDY.