2017 GMC Yukon XL: check engine light

Filed Mar 22, 2026 · Fuel system · IA

Engine stalling, a rough-running engine, reduced power mode (sluggish acceleration), a "Check Engine" light, or the vehicle failing to start. It started puttering really bad and died in the middle of the intersection. Check engine light came on. I got it to start, was really hard start and puttered bad then it died again and then I got it to start again, was a really hard start and puttered and died again. I was able to start it again get in the driveway but couldn’t go very fast. Check engine codes present are P2635 and P018B

Filed Dec 8, 2025 · Brakes, Engine · 148,246 miles · UT

The contact owns a 2017 GMC Yukon XL. The contact stated that the check engine warning light was illuminated. The contact stated that while idling, the vehicle started shuddering violently. The contact stated that while driving to the residence at an undisclosed speed, the vehicle stalled and failed to restart. The vehicle was pushed into a church parking lot. The contact's father used a scanner to scan the vehicle, and a DTC for engine misfire was retrieved. The contact's father replaced the spark plugs, but the failure persisted. The vehicle was towed to an independent mechanic, where it was diagnosed and determined that the engine was blown. The vehicle was then towed to another independent mechanic, where the engine was replaced. Additionally, the contact stated that upon depressing the brake pedal, the brake pedal was stiff and required to be pumped several times for the vehicle to respond as intended. The contact stated that the failure occurred while starting the vehicle and while driving at various speeds. There was no warning light illuminated. The contact stated that the brakes had been replaced annually, but the failure persisted. The contact stated that the brake pedal shuddered upon starting the vehicle. The contact received a notification for ABS from the OnStar Mobile App. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 148,246.

Filed Dec 3, 2025 · Engine · NC

On July 3, 2025 we were traveling on a 4 lane at 55mph. Without any prior symptoms, the vehicle began to shake violently. It shook so hard that the skid warning light simultaneously came on. It was followed by the check engine light. The oil pressure guage started bouncing around. We stopped driving the vehicle and had it towed to VanYork GMC dealer in Asheboro, NC on this same day. (Invoice attached) VanYork GMC determined that cyclinder 5 was misfiring. We paid to have them repair it, and we began driving the vehicle again. (invoice attached) On or about August 1, 2025 we were traveling on an interstate at 70mph. Without any forewarning, the vehicle began to violently shake. Just as before, the skid warning light simultaneously came on, followed by the check engine light came on, and then the oil pressure guage started bouncing around. As there was heavy traffic on the interstate, the failure created a very dangerous situation for us as we tried to maintain our lane, and stay in control of the vehicle until which time we were able to safely maneuver to the side of the road. The vehicle was again towed to Vann York GMC in Asheboro, NC. (invoice attached) On December 3, 2025 we received a call from VannYork GMC saying that the vehicle repairs were complete. It had been in their repair shop for 4 months. This repair began with lifter and camshaft replacement. When this repair was unsuccessful, they decided that the vehicle needed a 'new' rebuilt engine. Since GMC has not offered any assistance with the expense of this new re-built engine, we will have to satisfy the $12,000 bill when we pick it up. After experiencing two very dangerous episodes, we are happy that we did not wreck, but certainly, this not the situation we expected from a high-end vehicle with only 76,169 miles on it.

Filed Nov 30, 2025 · Electrical, Engine · SC

At stop light vehicle began to sputter and make noise, I was very close to my home, no engine light on. Upon turning vehicle off and using a code reader codes P0106 and P0506 was on scanner. I had vehicle towed to Complete Car Care. Mis fire on multiple cylinders. Vehicle has 69,801 miles. 3 push rods bent and I valve spring broken. The right Cylinder head assembly had to be removed and replaced with 8 new push rods, 8 new lifters, gaskets, seals, and valve spring. Cost was $3304.79. In addition the rear tail light has been sporadic on and off, GM was to replace up to 70,000 miles. When I took it to them they stated the time limit had expired, yet I had not been informed until I did a google search. GM requesting $475 plus tax. I am concerned my vehicle has the same manufacturing defects as the GM motors being recalled with total engine failures.

Filed Nov 30, 2025 · Electrical, Engine · SC

At stop light vehicle began to sputter, run rough, and make noise. I was less than a mile from my home, no check engine light on. I turned the vehicle off, used a scanner to have codes P0106 and P0506 show. I had vehicle towed to Complete Car Care. Misfire on multiple cylinders, 3 push rods bent, one valve spring broken. The right Cylinder head assembly had to be removed and replaced with 8 new push rods, 8 new lifters, gaskets, seals, and valve spring. Total cost $3304.79, the vehicle only has 69,801 miles on it. In addition one of the rear tail lights has a known issue (found out on google), intermittently goes out, was never notified. I took the car to Jim Hudson GMC to be told it would cost $475 plus tax because I did not come in early enough even though it is to be warranted up to 70,000 miles. I am greatly concerned that this engine has the same manufacturing defects of the current recall and extended recall for the GMC Yukon Denali engines.

Filed Jun 12, 2025 · Transmission · VA

In May 2025, my vehicle suddenly started jerking, shaking, and almost stalled out while driving. I was on a busy 3 lane roadway with 6 passengers total. As I would try to accelerate, the power was significantly decreased. I felt it jerk between shifting several times. My check engine light came on. I was so scared that someone would hit my vehicle and injure us. I brought it to a GMC dealership. They said that my transmission failed, metal in the transmission fluid. How is this possible? Upon researching this problem, this is a common issue with the 2017 GMC Yukon Denali. There are class action law suits and lemon law lawsuits against GMC regarding this problem which causes major safety concerns. My vehicle has been well maintained with lots of service records to prove it. I have babied her and I’ve never towed anything. This transmission issue needs to be addressed and recalled. I need a new transmission which will cost between $5,000-$7,000. This is just horrible and disappointing regarding the quality and reported issues that are not being recalled by GMC.

Filed Nov 19, 2022 · Visibility · MI

Not sure if this is the correct raea to notify regarding this incident. I had windshield replaced by Safelite Auto Glass in Cadillc Mi.After the service the technician said he calibrated everything and all is fine. Upon my initial driving after the windshield service the vehicle engine light was flashing and the display was telling me the advanced collision and lane departure warning systems were inoperable. Additionally the vehicle would not accelerate. The vehicle could not be driven safely. I contacted Safelite in Cadillac Michigan the next morning and was initially told the warnings have nothing to do with the service they performed and they do not have to do anything to help me. The manager advised that they ran 3 scans with their equipment and all scans came out good. The manager is saying that confirms everything was OK. I see that as an admission of something being wrong since the technician ran 3 scans. Why run additional scans if all is good. What he was seeing is that the vehicle was displaying warning lights and was not running properly. That is why he kept running scans over and over. Even after 7 scans now they are still saying it's not their problem. Obviously their equipment is incapable of calibrating the new windshield to the vehicle. Additionally they have caused a problem within the engine control module by hooking up faulty electronic device. The vehicle is inoperable. Additionally Safelite knows that they are incapable of performing windshield replacement on this vehicle. The technician no more than left my driveway and I received a text from Safelite saying: "Modifications to your vehicle may cause your advanced safety systems to not function a intended" That is admission thjat Safelite knows they are incompetent in this matter. The windshield is in of the most important safety feature in a vehicle. It is unacceptable the an industry leading automotive aftermarket company is continuing to operate this way. Please look into this.

Filed Jun 27, 2022 · Engine · 32,000 miles · CA

The contact owns a 2017 GMC Yukon XL. The contact stated that the check engine warning light illuminated on the instrument panel. The contact stated that the vehicle was running rough. The vehicle was taken to the dealer for diagnostic testing. The dealer stated that the fuel injector had failed and the vehicle was experiencing the failure stated in TSB: N182198000 (Engine). The manufacturer was contacted and stated that the vehicle was not included in TSB: N182198000. The manufacturer offered no additional assistance. The approximate failure mileage was 32,000.

Filed Apr 20, 2021 · Transmission · 60,500 miles · NC

About 500 miles past the original powertrain warranty of 60,000 miles, the transmission fluid temperature sensor failed. I know this because an engine light came on displaying p0700 and p0711 and the gauge on the dash is erratic. I did research, and the transmission for these vehicles model gear 2015 and 2016 have several issues including this one as outlined in special coverage n192291660 which extends the coverage for this issue to 120,000 miles. If gmc has the same issue with the previous year transmissions and knows about it enough to issue a special coverage, they should do the same for the 2017 models.

Filed Feb 26, 2021 · Engine, Transmission · 85,000 miles · UT

Car struggled to start when I started it. Idle was/has been really shaky. Engine light came on. I got a diagnosis from 2 companies for my engine. Both said I needed to replace all 8 fuel injectors. Gmc has an extended warranty to cover these issues, but it is not available for my state of utah. Here is the code for reference for yukon #n182198000. My car is a yukon xl 2017 that needed fuel injectors at 85,000 miles! How is this okay? The repair cost $1,990.28. The power train warranty has been changed for 2016 and 2017 gmc vehicles so that it is now 60,000 miles or 5 years. Mechanics have reported that gm has changed the way they are building engines in order to reduce costs, but it appears that consumers such as myself are bearing the brunt of the costs. I would appreciate if the extended service warranty could be extended to all states in the u.s. Vs. Those who have mandated it because of legislation or legal enforcement.

Filed Oct 2, 2020 · Fuel system, Transmission · CA

Brake problems when starting brakes loose vacuum pressure still no fix after recall. 2nd check engine light came on at about 36,500 miles fuel injectors defective 3rd transmission problems valve body defective paid over 85,000 and this SUV its not worth it defective all defectives under 43,000 miles

Filed Sep 30, 2018 · Electrical, Engine · 14,171 miles · NJ

While driving, the check engine light intermittently flashes. Vehicle runs extremely rough, sluggish at times. Dealer checked vehicle over a period of time and eventually confirmed random misfires. Unable to fix issue. Unable to determine cause. Vehicle was later confirmed to have a faulty transmission transmission replaced by dealer.