2008 GMC Yukon Problems

The contact owns a 2008 GMC Yukon. The contact received notification of NHTSA Campaign Number: 21V050000 (Air Bags) and the vehicle was taken to the dealer for the recall repair; however, the dealer failed to repair the vehicle on the scheduled date and retained the vehicle without providing a loaner vehicle. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not notified of the issue. The contact had not experienced a failure.

the passenger-side frontal airbag inflators, The determination was made that the propellant in these inflators may degrade after long-term exposure to high humidity and temperature cycling, which could cause the inflator to rupture during a deployment.

It started shutting off at a light for autostop.but when it would turn green it would intermittently just drop out of autostop without restarting. Then may start back up or maybe not, many time after restarting at the light it would died in the middle of the inspection. A parasitic draw kept killing the accessory 12 V battery replaced the 12 V battery but the problem continued. When the truck was running it would run flawlessly,before stalling. The code said to replace the auxiliary fluid pump. I had it a new auxiliary fluid pump installed. After this the vehicle wouldnt crank. They then worked through a service bulliten fixing a list of areas were the harness was chaffed and shorted. The truck has been out of commission the past 10 months and intermittently started twice during this time, it ran rough for 5 mins and died out at the first stop sign and wont crank again. Some times it will crank but not start.

MY 2008 YUKON HAS HAD AN ELECTRICAL MYSTERY FOR AWHILE NOW. WHEN YOU OPEN THE DOORS THE "CHIME" WILL BE VERY FAINT AND THEN THE NEXT TIME IT'S VERY LOUD. THE CLOCK RESETS LIKE THE BATTERY HAS BEEN DISCONNECTED AFTER SHUTTING THE CAR OFF. THE DOOR LOCKS WILL LOCK AND UNLOCK BY THEMSELVES WILL I'M DRIVING. I CAN TURN THE CAR OFF AFTER DRIVING IT AND IT WILL BE COMPLETELY DEAD. IT WONT DO ANYTHING. YOU CAN'T LOCK THE DOORS, TURN ON THE RADIO, START THE CAR OR ANYTHING. ALMOST LIKE IT DOESNT HAVE A BATTERY AT ALL. WAIT 10 MINUTES OR SO AND SLAM A FEW DOORS AND IT STARTS RIGHT UP. WE'VE REPLACED BATTERIES, ALTERNATORS, FUSES AND TAKEN IT TO MECHANICS WITH NO LUCK. AFTER REPLACING THE BATTERY IT WILL WORK FOR SEVERAL MONTHS AND THEN IT WILL DO IT AGAIN. THERE HAS TO BE A SHORT SOMEWHERE AND AFTER GOOGLING IT THERE ARE 1000 OF PEOPLE HAVING THE SAME PROBLEMS. WE HAD PROBLEMS SINCE WE PURCHASED THE CAR IN 2017 AND I'M POSITIVE THE OWNER BEFORE ME HAD THE SAME ISSUES.

Dashboard is severely cracked & rattles so badly that it interferes with hearing outside & inside noises & communication. Has gotten worse over past year. Dealer confirmed that the problem was prevalent among several GM models, including my model. I was also told that a class action suit was filed against GMC for this problem, but was dismissed by judicial system.

MY DASHBOARD IS SEVERELY CRACKED TO WHERE A PIECE HAS FALLING APART. *TR

DOORS LOCKED WITH REMOTE. 2ND ROW PASSENGER DOOR BEHIND DRIVERS DOOR FAILED TO ACTUATE WITH REMOTE OR WITH DOOR LOCKS. WAS ABLE TO WORK WITH THE MANUAL LOCK ON THE DOOR FROM THE INSIDE TO FREE THE DOOR. ONCE FREED, THE DOOR FAILED TO RETURN TO THE CLOSED POSITION AND REMAINED STUCK UNTIL THE KEY FOB WAS PUSHED. REPEATED THE LOCK WITH THE KEY FOB, DOOR STILL WILL NOT ACTUATE TO THE OPEN POSITION. CHILD CAN UNLOCK AS THIS BYPASSES THE CHILD LOCKS ON THAT DOOR. CHILD COULD ALSO GET TRAPPED IN THE CAR-COULD NOT BE UNLOCKED WITHOUT MANUAL AGITATION OF THE INTERNAL LOCKS. INTERNET IS FULL OF HIS SAME ISSUE ON THE SAME MODEL VEHICLE. THIS IS A SERIOUS HAZARD. *TR

DOOR LOCK ACTUATORS. THREE OF FOUR DOOR ACTUATORS ARE BROKEN AND LOCKS MUST BE CONTROLLED MANUALLY. GMC WANTED 655.00 TO FIX THE TWO I KNEW WERE BROKEN. GMC IS WELL AWARE OF THE THOUSANDS OF COMPLAINTS OF THIS DEFECTIVE PART. I WAS NOT AWARE THE THIRD LOCK HAD FAILED UNTIL MY SON OPENED A BACK DOOR AND STEPPED INTO TRAFFIC. I WAS UNDER THE IMPRESSION HIS DOOR WAS LOCKED. ALL I COULD DO WAS SCREAM AT THE TOP OF MY LUNGS IN AN ATTEMPT TO KEEP HIM FROM GETTING HIT BY TRAFFIC. DOES IT TAKE A DEATH OR SEVERAL DEATHS BEFORE GMC RECALLS THIS DEFECTIVE PART?!!! THIS IS A SERIOUS SAFETY ISSUE WHEN YOU HAVE A CHILD IN THE CAR AND SHOULD BE LOOKED AT BEFORE AN INJURY OF DEATH OCCUR. *TR

the passenger-side frontal airbag inflators, The determination was made that the propellant in these inflators may degrade after long-term exposure to high humidity and temperature cycling, which could cause the inflator to rupture during a deployment.

I purchased a MagnaFlow aftermarket catalytic converter system for my 2008 GMC Yukon SLT 5.3L through Walmart’s online marketplace, sold by a third-party vendor called OurDealsRock. The product was advertised as “50-state legal” and compatible with vehicles registered in New York State. However, shortly after installation, my check engine light turned on, and diagnostic codes P0420 and P0430 (Catalyst System Efficiency Below Threshold) appeared. Initially, I thought this was a minor sensor issue, but over time, the vehicle’s performance gradually deteriorated. I noticed reduced acceleration, poor fuel economy, and eventually significant loss of power. The vehicle began shaking under load, misfiring, and overheating. These symptoms worsened steadily—not immediately—but progressively after continued driving with the aftermarket converter installed. I had the vehicle inspected by a certified mechanic, who confirmed that the MagnaFlow converter was not CARB-compliant, was not approved for use in New York, and that it had been illegally marketed as such. He also informed me that prolonged use of a non-compliant, malfunctioning converter caused excessive backpressure, leading to complete engine failure over time. The diagnosis was confirmed by a second mechanic before I committed to the engine replacement. The product was later removed from Walmart’s site, becoming unavailable for sale in my zip code [XXX] ) shortly after my initial complaint. This shows clear acknowledgment that it should never have been sold to a New York consumer in the first place. But by the time it was taken down, the damage had already been done. Component/system that failed: •MagnaFlow aftermarket catalytic converter system •Ultimately caused failure of the vehicle’s engine block Safety concerns: •My family and I were unknowingly driving with a damaged and failing engine •The vehicle’s degraded performance, overheating, and power loss could have compromised our safety during highway d INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORM

I WAS IN A SMALL IMPACT ACCIDENT , AIR BAGS DEPLOYED AND BROKE MY LEFT INDEX FINGER.

TRUCK STALLS ON TAKE OFFS ,AT TIMES IT JUMPS ON TAKE OFFS TO WHERE YOU HAVE TO LOCK THE BRAKES UP .AT TIMES YOU CAN SMELL THE HYBRID BATTERY GETTING HOT ,THERE TIMES IT WONT START UP ,IM AFRAID MY WIFE WILL LEAVE A LIGHT AND IT WILL DIE AND HER GETTING HIT BECAUSE OF IT IVE SEEN MANY COMPLAINTS ON THESE TRUCKD

The contact owns a 2008 GMC Yukon. The contact stated that while driving at an undisclosed speed, the transmission shifted from first gear to second gear and the vehicle intermittently stalled. The contact shifted to park and restarted the vehicle, and the vehicle was shifted into drive and returned to normal operation. The failure reoccurred on several occasions. The vehicle was taken to several independent mechanics; however, the diagnostic result was unknown. The manufacturer was not notified of the failure. The failure mileage was unknown.

It started shutting off at a light for autostop.but when it would turn green it would intermittently just drop out of autostop without restarting. Then may start back up or maybe not, many time after restarting at the light it would died in the middle of the inspection. A parasitic draw kept killing the accessory 12 V battery replaced the 12 V battery but the problem continued. When the truck was running it would run flawlessly,before stalling. The code said to replace the auxiliary fluid pump. I had it a new auxiliary fluid pump installed. After this the vehicle wouldnt crank. They then worked through a service bulliten fixing a list of areas were the harness was chaffed and shorted. The truck has been out of commission the past 10 months and intermittently started twice during this time, it ran rough for 5 mins and died out at the first stop sign and wont crank again. Some times it will crank but not start.

When beginning to drive forward after coming to a stop at an intersection. The vehicle will often stall in the middle of the intersection. Requiring me to switch it transmission into natural and restart it as it’s rolling. I almost gotten rear ended many times I always get honked at. It just a matter of time before it causes an accident. It sometime happens after turning as well. I looked at forums on this gmc Yukon hybrid. And it looks like many other owners are asking the same question and nobody is coming up with any answers. Other customers say the dealer told them the hesitation is Normal. I took my truck into a local repair shop and he called me after three weeks saying it was done, but it still had the check engine light on and still is stalling out in intersections. Charge me $2000. This has been happening daily since I got the vehicle

Model Year(s):2009Manufacturer:GENERAL MOTORS CORP.Campaign ID Number:09V154000Potential Number of Units Affected:27188Summary:GM IS RECALLING 27,188 MY 2009 CADILLAC ESCALADE, ESCALADE HYBRID, ESCALADE ESV, AND ESCALADE EXT; CHEVROLET AVALANCHE, SUBURBAN, TAHOE, TAHOE HYBRID, AND COLORADO; AND GMC YUKON, YUKON HYBRID, YUKON XL, AND CANYON VEHICLES. THE FUEL SYSTEM CONTROL MODULES MAY HAVE A CONDITION IN WHICH AN ADHESIVE SEPARATION OF THE ROOM TEMPERATURE VULCANIZING (RTV) SEAL BETWEEN THE SEAL AND THE HOUSING MAY ALLOW WATER TO SEEP INTO THE MODULE.Consequence:WATER IN THE MODULE COULD CAUSE A SHORT OR OPEN CIRCUIT, ILLUMINATION OF THE SERVICE ENGINE SOON LAMP, SETTING OF DIAGNOSTIC TROUBLE CODES OR THE ENGINE MAY BE HARD TO START, MAY NOT START OR MAY STALL INCREASING THE RISK OF A CRASH

the passenger-side frontal airbag inflators, The determination was made that the propellant in these inflators may degrade after long-term exposure to high humidity and temperature cycling, which could cause the inflator to rupture during a deployment.

TL* THE CONTACT OWNS A 2008 GMC YUKON. WHILE DRIVING AT APPROXIMATELY 25 MPH AND APPROACHING A STOP SIGN, THE BRAKE PEDAL WAS DEPRESSED BUT THE VEHICLE DID NOT STOP. THE ACCELERATOR PEDAL WAS DEPRESSED, BUT THE VEHICLE DID NOT ACCELERATE. ANOTHER VEHICLE CRASHED INTO THE FRONT PASSENGER OF THE CONTACT'S VEHICLE. THE AIR BAGS DID NOT DEPLOY. THE CONTACT SUFFERED A CONCUSSION AND THE PREGNANT FRONT PASSENGER SUSTAINED BACK INJURIES AND RECEIVED MEDICAL ATTENTION. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHERE IT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 100,000.

THIS IS IN REGARDS TO GMC BULLETIN #PIP4112J : SAG OR HESITATION ON ACCELERATION (NORMAL OPERATION CHARACTERISTICS) - (JUL 21, 2011). I'VE BEEN HAVING THIS PROBLEM SINCE DAY ONE AND TOOK THE SUV TO MANY DEALERS BUT DEALERS COULD NOT VERIFY THE CONCERN UNTIL NOW. THE 2008 GMC YUKON XL DENALI WOULD STOP ACCELERATING FOR 2-3 SECONDS WHEN THE GAS PEDAL IS PRESSED. MOST OF THE TIME IT IS WHEN I AM TRYING TO PASS A LANE, TRYING TO ENTER HIGHWAY, TRYING TO CLIMB A MILD HILL OR TRYING TO AVOID A POTENTIAL ACCIDENT. AFTER THE DELAY, THE TRANSMISSION WOULD DOWN SHIFT AND I THINK IT DOWN SHIFTS TO EITHER 1ST OR 2ND GEAR CAUSING THE SUV TO ROAR LIKE CRAZY AND SHOOTS OUT LIKE A CANNON. I HAD AN INCIDENT WHERE THE COPS GAVE ME A WARNING WITH THE LIGHTS AND SIREN PROBABLY THINKING THAT I WAS DRIVING RECKLESSLY. THERE WERE ALSO INCIDENTS WHERE I'VE HAD THE GAS PEDAL PRESSED DOWN ABOUT 80%-90% TRYING TO CLIMB A MILD ELEVATION AND EITHER THE ENGINE AND OR TRANSMISSION STARTED TO CHOKE. IT WAS SO BAD THAT THE DENALI ALMOST CAME TO A FULL STOP. YOU REALLY HAVE TO EXPERIENCE THIS ON YOUR OWN TO UNDERSTAND HOW SCARY AND NERVE WRECKING IT IS WHEN YOU HAVE VEHICLES ABOUT TO RAM YOU FROM BEHIND BECAUSE THE SUV SIMPLY WOULD NOT ACCELERATE. MANY TIMES, I HAD TO SWERVE BACK IN TO ORIGINAL LANE IN FEAR OF CAUSING A SERIOUS ACCIDENT. BECAUSE OF THIS, I DON'T EVEN LET MY WIFE DRIVE THE VEHICLE. SERVICE MANAGER WAS KIND ENOUGH TO RESEARCH ON THIS MATTER AND FOUND BULLETIN #PIP4112J AND HE CAN'T REALLY DO ANYTHING. I'VE BEEN EXPLAINED THAT DUE TO LARGE POWER FROM THE ENGINE, HE HAS SEEN THE REAR OF THE VEHICLES BREAK APART. I FULLY UNDERSTAND THE SERVICE MANGER'S POSITION ON THIS BUT I THINK THIS IS A MAJOR SAFETY CONCERN AND SOMEONE CAN SERIOUSLY GET HURT BY THIS. *KB

ON ALL 4 OCCASIONS, THE 2008 YUKON HYBRID, LUNGES FORWARD AT LOW SPEEDS, LOOSES BRAKES, POWER STEERING AND ALL POWER. EVERY TIME IT HAS TO BE TOWED TO THE DEALER. THIS HAS HAPPENED 4 TIMES SINCE AUGUST 2008. THE FIRST TIME THERE WAS A FIRE IN THE FUSE BOX, THEN WHILE THE DEALER HAD THE VEHICLE, IT CAUGHT ON FIRE AGAIN. THE DEALER KEEPS TELLING ME THAT IT IS FIXED AND SAFE TO DRIVE. THE YUKON IS BACK AT THE DEALER AND I AM NOT TAKING IT BACK. THIS VEHICLE IS VERY DANGEROUS AND THE GOVERNMENT NEEDS TO LOOK INTO THIS RIGHT AWAY. I NOW HAVE AN ATTORNEY AND WE ARE CONTACTING GM AS WELL. *TR

The contact owns a 2008 GMC Yukon. The contact stated that the wheel was corroded, causing the tires to leak air. The contact stated that the tire pressure warning light was illuminated. The vehicle was diagnosed at a local mechanic with needing the wheels replaced. The wheels were not replaced. The manufacturer was not informed of the failure. The failure mileage was approximately 89,000.

SAFTY LOCKS ON DOORS DON'T WORK FOR 2008 YUKON AND DEALER REPLACED 3 AND NOW THE 4 IS NO GOOD AND GM SAID IT WON'T REPLACE ACUATOR LOCK. DEALER SAID THEY HAVE REPLACED ABOUT 80 OF THESE ON YOKON IN 6 MONTHS. CAN NOT OPEN AND LOCK DOORS FROM OUT SIDE ON VECHICLE. CHILD IS UNSAFE IN BACK SEAT OF CAR AND GM HAS DONE NOTHING. *TR

Truck stop without any warning for no reason oil is leaking from the truck for no reason just got it not long ago

Front stabilizer broke off from the body of the SUV not secure swab bar to the on Suv this could have make the SUV roll over, it is a 2008 GMC Yukon Denali [XXX]. I called the dealership to ask if this was a common problem on these vehicle. So I would like to report this problem on my SUV. My name is [XXX][XXX]. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

VEHICLE WILL JUMP FORWARD WHEN GOING INTO AUTO STOP AS IF YOU ARE SITTING AT A LIGHT BEHIND SOMEONE YOU WOULD HIT THEM, SOMETIMES GOING DOWN THE ROAD WHEN GOING INTO HYBRID MODE IT WILL STALL AND START JERKING FORWARD AND STEERING LOCKED UP WOULDN'T TURN WITCH WOULD CAUSE TO RUN INTO SOMEONE

LOW BEAM HEADLAMPS HAVE POOR LIGHTING PERFORMANCE HIGH BEAMS ARE NOT ANY BETTER AND IS NOT MEASURABLE DIFFERENCE BETWEEN THEM. I HAVE BEEN DRIVING WITH THE HIGH BEAMS ON AND ONCOMING TRAFFIC DOES NOT EVEN FLASH ME TO TURN THEM OFF. *TR

Driving north on I-94, leaving the city of Chicago, the rear driver side tire (Bridestone Dueler P285/45R22) blew and the outer side wall seem to have a defect (weak side wall). This should never happen in a passenger car and the manufacturer should have better QUALITY CONTROL and prevent these defects from leaving the plants. I have a MS in Mechanical Engineering and have knowledge of the tire designs, as we did research for Firestone in the 1980's at my university, and this is definitely a defect within a weak part of the fabric in the sidewall. If you would like the tire for your investigation, please let me know ASAP. Other industries like the Medical and Pharma areas would not allow this kind of thing to happen and passenger vehicles with defective parts or components should never jeopardize any passenger to be in this kind of situation. Luckily, it was very early in the morning, with very light traffic, and no one in my car or any of the cars around me got hurt, as I was able to maneuver to the right side of the highway.

HI, MY HUSBAND AND I JUST PURCHASED THIS VEHICLE. A FEW DAYS AFTER WE TOOK A DRIVE WITH SEVERAL PASSENGERS. THE SEATBELT BEHIND THE DRIVER'S WOULD NOT AUTOMATICALLY CLICK. THE PASSENGER HAD TO TRY SEVERAL TIMES BEFORE THE SEATBELT LOCKED IN PLACE. THIS HAPPENS WHILE DRIVING AND ALSO WHILE NOT DRIVING.