2018 GMC Yukon Problems

I started my vehicle and as I accelerated I started to hear a knocking noise. The vehicle and engine have been inspected by the dealership. The problem has also been confirmed by the dealership.There were no warning lights or messages before the knocking noise started.

The 2018 Yukon has been at the dealership several timeswaiting for a valve body for the transmission. There are valve body recalls for other year GM vehicles with the same transmission, but not for the 2018 model even though it appears to be the same part number. I don’t understand how this 2018 model apart of the recalls when it’s got the same issues as the newer ones. This is the second Yukon I’ve bought in the last seven years and the other one had the exact same issue.

The 2018 Yukon has been at the dealership several timeswaiting for a valve body for the transmission. There are valve body recalls for other year GM vehicles with the same transmission, but not for the 2018 model even though it appears to be the same part number. I don’t understand how this 2018 model apart of the recalls when it’s got the same issues as the newer ones. This is the second Yukon I’ve bought in the last seven years and the other one had the exact same issue.

I purchased my used GMC YUKON from a used car dealership 3/28/26. I signed the papers for the agreement while I was driving the vechicle home I lost power and it wouldn't go forward with gas applied. The check engine light came on, I pulled the suv over and it was towed. The code that popped up 0700 and 02723 both codes having to do with the transmission.

As of [XXX] , I witnessed a squealing sound coming from the rear end of my 2018 Denali Yukon XL truck. And it's affecting my braking. And it jerked when I changed my gears on my truck . And there are lights on in my dashboard on my truck. The engine light was blinking on and off and the traction control light was blinking on and off also. But the back driver side of the truck was squealing also. Please help me to resolve this situation. In the name of Jesus. Thanks again [XXX] and [XXX] . INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Air conditioner condenser faulty and had to repaired. Premium Ride Shocks faulty and had to be repaired. Lifters and bent pushrod faulty and had to be repaired. Vehicle currently has approximately 70,000 miles. These are all known issues by GM and very expensive to fix and no recalls.

ENGINE WORK VALVE INTAKE LIFTER AND CAMSHAFT REPAIRS / OIL SENSOR HAS BEEN GOING HAYWIRE / REAR STRUTS KEEP POPPING OFF AND AFTER STRUTS REPAIRED BOUGHT THE TRUCK 05/2024 AND HAD TO TAKE TO REPAIR 12/2024 AND ONCE MONTH EVER SINCE.

I have noticed the amount of pressure needed to apply brakes at a slow speed is a lot to where it seems like I will crash into the car or object in the way of my vehicle. I took my vehicle to a GMC dealership and was told the brake vacuum pump needs to be replaced. These vacuum pumps were already recalled by NHTSA. NHTSA #19V645000, GM #N192268490. This recall was expanded to include additional vehicles. NHTSA #20V603, GM #N202300860. I strongly believe my vehicle needs to be included in this recall. GMC repair invoice is attached.

As of [XXX] , I witnessed a squealing sound coming from the rear end of my 2018 Denali Yukon XL truck. And it's affecting my braking. And it jerked when I changed my gears on my truck . And there are lights on in my dashboard on my truck. The engine light was blinking on and off and the traction control light was blinking on and off also. But the back driver side of the truck was squealing also. Please help me to resolve this situation. In the name of Jesus. Thanks again [XXX] and [XXX] . INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

No warning light presented to warn of transmission issues. While driving is hesitating sluggish when accelerating and stalling around 60mph then shifts . Putt Putt then pick up a bit then back down.

While driving I made a right hand turn. As soon as the turn was made, the powering steering completely went out. The power steering is found to fail upon cold starts, then return to normal after operating. The vehicle has been taken to gmc numerous times with no explanation as to why or how it has happened. When asked to replace the steering rack. They stated vehicle is working as expected. It is unsafe. GMC has had recalls on the steering for many years now.

ON 3/20/21 I WENT OUT WITH THE FAMILY OUT GOT TO OUR DESTINATION WELL BUT WHEN I STARTED MY VEHICLE TO GO BACK HOME I GOT A MESSAGE ON THE DISPLAY "SERVICE POWER STEERING DRIVE WITH CARE" WHEN I WENT TO TURN THE STEERING WHEEL TO DRIVE I COULDN'T BECAUSE IT WAS TOO HARD, AFTER FIGHTING IT, I WAS ABLE TO DRIVE MY CAR BACK HOME WITH MY FAMILY IN IT. TODAY 3/22/21 I CALLED GMC TO DO A COMPLAINT AND ASK IF THERE IS A RECALL FOR THIS ISSUE ON THIS TYPE OF VEHICLE SINCE I DON'T HAVE ANY WARRANTY ANYMORE ON THE VEHICLE DUE TO PASSING THE 36 MONTHS BY 1 MONTH BUT NOT BY MILEAGE SINCE I HAVE 28500 MILES ON IT. I WAS TOLD BY THE GMC REPRESENTATIVE THAT AT THIS TIME GMC DOES NOT HAVE ANY RECALLS FOR THIS VIN NUMBER. AFTER DOING MUCH RESEARCH I FOUND THAT THIS IS A VERY RECURRING PROBLEM WITH GMC, CHEVROLET AND BUICK VEHICLES. ON THE PAST THEY HAVE DONE RECALLS FOR THIS TYPE OF PROBLEM BUT THE LOVELY AUTOMAKERS AND LOBBYIST ARE FINDING THE LOOP HOLES SO THEY ARE HELD ACCOUNTABLE FOR KNOWN MISTAKES UNTIL SOME FAMILY TRAGICALLY DIES IN AN ACCIDENT DUE TO AUTOMAKER NOT BEING HELD ACCOUNTABLE FOR KNOWN ISSUES. PLEASE DO SOMETHING ABOUT THIS ISSUE, TOOOOO MANY CUSTOMERS HAVING THIS ISSUE AND NO ACCOUNTABILITY ON AUTOMAKERS BEHALF.

INVOLVED IN A FRONT/SIDE PASSENGER SIDE COLLISION WITH SIGNIFICANT DAMAGE AND SPEED WITH NO AIRBAG DEPLOYMENT(S).

The contact owns a 2018 GMC Yukon. The contact stated that while operating the vehicle, the Service SRS message was displayed. The vehicle was taken to the local dealer who diagnosed that the front passenger’s seat air bag control module was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was not notified of the failure. The failure mileage was 50,000.

Keeps showing a service trailer brake system, it does it once in a while but when it does it keeps showing the message after pressing dismiss, I was researching online and apparently there is a lot of people dealing with this same issue and looks like it is a defect from factory.

May 31st 2022-While driving on the highway, I lost control of my power steering. Luckily my husband was with me to drive it back home. June 1st 2022-Took it to a service center and was told it needed a part to fix the problem. We ordered the part, which would not be delivered until may 6th 2022. June 4th 2022- Went to drive, made it a couple blocks down the road when the ABS, electronic stability control, & the engine light came on. So I turned around to take it back home, only now my power steering was completely out, my car would not shift out of first gear. After arriving home, I attempted to put it in park but was unable to. My motor shut off but would not allow me to place it in park or turn the electric power off. The only option I had was to disconnect the battery. I let it sit for a few hours, reconnected the battery, now my car will not start at all. I am now unable to take my car to the dealership due to power failure Note: June 2nd & 3rd, my vehicle was not driven I did contact my local dealer to check if there were any open recalls, was told no

The contact owns a 2018 GMC Yukon. The contact stated that the A/C unit failed to function properly. The vehicle was taken to a local dealer where it was diagnosed that the A/C coolant line was leaking and needed to be replaced. The vehicle was repaired under warranty. The contact was concerned that the failure could cause medical health risks during high weather temperatures. The manufacturer was not made aware of the failure. The failure mileage was approximately 54,000.

AIR CONDITIONING CONDENSER REFRIGERANT LEAKED, PREVENTING AC FROM FUNCTIONING. COULD LEAD TO VISIBILITY ISSUES DUE TO DEFROSTER NOT FUNCTIONING PROPERLY. REPORTED PROBLEM IN NHTSA 10166241 (GM SPECIAL COVERAGE 17336), BUT VEHICLE HAD CONDENSER SHIELD USED AS 'SOLUTION' TO PROBLEM. STILL LEAKED AND GM WOULD NOT COVER REPAIR COSTS.

Headlights are terrible. Driving at night is treacherous because the headlights are not very bright unless I can use brights which seems like they could be low beam instead of high beam. With oncoming traffic it is hard to see the road and I get scared it may cause an accident, either hitting an oncoming car or going off the road myself. It's terrible. Others have commented on the headlights also asking me how can I see. There is no film on the covering over headlights. I Can see the bulbs just fine but they look burnt. My husband thought so too. Just scared driving at night. Need better Headlights!

Side rear brake lights work intermittently, often cutting out and losing all power while driving.

ENGINE WORK VALVE INTAKE LIFTER AND CAMSHAFT REPAIRS / OIL SENSOR HAS BEEN GOING HAYWIRE / REAR STRUTS KEEP POPPING OFF AND AFTER STRUTS REPAIRED BOUGHT THE TRUCK 05/2024 AND HAD TO TAKE TO REPAIR 12/2024 AND ONCE MONTH EVER SINCE.

NHTSA's recall number 25V-274. This vehicle should fall under this recall it happed to the this motor at 58k miles and I had to put a whole motor in it at 58k miles in 2022. The Yukon Denali has the L87 V8. I bought the new motor threw GM so it should be tied to this vin number

I WAS DRIVING MY VEHICLE AND EXITING THE HW. THE REAR WHEEL OF THE DRIVER SIDE BROKE OFF AND SEPARATED FROM THE CAR WHICH CAUSED MY CAR TO HIT THE CEMENT BEERIER ON FRONT AND THE SIDE OF THE DRIVER SIDE OF THE VEHICLE. THEN THE CAR TURNED 180 DEGREES AND HIT THE BEERIER ON THE PASSENGER SIDE AND THE REAR OF THE CAR. THE AIR BAGS NEVER DEPLOYED AND WE DISCOVERED THAT THE WHEEL BROOK OFF OF THE REAR AXE. NO DAMAGE TO THE WHEEL. SEVERAL INDUSTRY EXPORTS STATED THAT THIS SHOULD NEVER HAPPEN.

BEEN SINCE DAY PNE OVER PAYMENT RANDOM CALL WRONG SIZE TIRES INSURANCE CLAIM THAT THEY SENT TO FIX AND CLUED THE PIECE AND A REFURBISHED PART PINT CHIPPED WHEN I TOOK IT FOR MAINTENANCE THEY DO OTHER NONSENSE VERY DISAPPOINTED IN THE AMOUNT PAID WITH DDOWNPAIMT SHOWING NO PAYMENT ON CREDIT REPORT ABOUT TO HIRE A LAWYER I WANT A NEW TRUCK FOR ALL THE MONEY AND TIME SPEND OVERTIME OR FIX IT DND I DON'T LIKE A NEW CAR TO HAVE A RECALL I HAVE KIDS

PASSENGERS SIDE WHEEL BEARING BAD AT 37,000 MILES MAKING LOAD HUMMING NOISE WHILE DRIVING

MY FRONT END MAKES NOISES WHEN I TURN WHEEL OR STOP.I TOOK IT TWO THE CARMAX SERVICE DEPARTMENT AND THEY COULDN'T FIND ANYTHING WRONG.BUT IT'S STILL MAKING THE NOISE

NUMEROUS TIRES HAVE HAD SIDEWALL FAILURE. WE HAVE HAD TWO TIRES WITHING 8 MONTHS (7000 MILES).