2018 Gmc Yukon problems, complaints & recalls
Most-reported problem areas: Engine (18) · Power Train (14) · Suspension (6)
🧭 Reliability snapshot
Compared against other Gmc Yukon model years — complaint volume vs the model's median year, recalls and severity. How we score →
🛣️ Complaints by mileage
20 NHTSA complaints that reported an odometer reading.
Safety recalls (3)
Service Brakes, Hydraulic:power Assist:vacuum 2020-10-01 · campaign 20V603000 · 14,620 vehicles
Defect: General Motors LLC (GM) is recalling certain 2018 Cadillac Escalade, Chevrolet Silverado 1500 and Tahoe, GMC Sierra 1500 and Yukon vehicles equipped with either a 5.3L or 6.2L V8 engine. The output of the mechanical vacuum pump can decrease over time, decreasing the amount of vacuum/power brake assist.
Risk: A decrease in brake assist can increase the brake pedal effort and distance required to stop the vehicle, increasing the risk of a crash.
Fix: GM will notify owners, and dealers will reprogram the Electronic Brake Control Module, free of charge. The recall began November 11, 2020. Owners may contact GM customer service at 1-866-522-9559, Cadillac customer service at 1-800-458-8006 or Chevrolet customer service at 1-800-630-2438. GM's number for this recall is N202300860.
Service Brakes 2019-10-24 · campaign 19V761000 · 652,967 vehicles
Defect: General Motors LLC (GM) is recalling certain 2015-2020 Chevrolet Suburban, Tahoe, and GMC Yukon, and 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 5.3-liter engine, a 3.08-ratio rear axle and four-wheel drive. If a wheel-speed sensor fails, while the vehicle is traveling between 41 and 60 mph in four-wheel or automatic mode, the Electronic-Brake Control Module (EBCM) software may activate the driveline-protection system.
Risk: Unintended activation of the driveline-protection system will cause unintended braking on the wheel on the opposite side of the failed sensor, causing the vehicle to pull to one side unexpectedly, increasing the risk of a crash.
Fix: GM will notify owners, and dealers will reprogram the EBCM, free of charge. The recall began December 11, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438 or GMC customer service at 1-800-462-8782. GM's number for this recall is N192261050.
Service Brakes, Hydraulic:power Assist:vacuum 2019-09-06 · campaign 19V645000 · 3,456,719 vehicles
Defect: General Motors LLC (GM) is recalling certain 2015-2017 Cadillac Escalade, 2014-2018 Chevrolet Silverado, GMC Sierra, 2015-2018 Chevrolet Suburban, Tahoe, GMC Yukon vehicles. The amount of vacuum created by the vacuum pump may decrease over time.
Risk: As the vacuum level drops, the brake assist decreases, increasing braking effort, extending the distance required to stop the vehicle, thereby increasing the risk of a crash.
Fix: GM will notify owners, and dealers will reprogram the Electronic Brake Control Module, free of charge. The recall began October 8, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-458-8006 or GMC customer service at 1-800-462-8782. GM's number for this recall is N192268490.
Service bulletins (1,115)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2026-09-26 · PIT5698F · Service Bulletin/Repair Instructions
this pi provides diagnostics tips on how the lin bus works and how to diagnosis it.
Unknown Or Other 2026-09-04 · PIP4902W · Service Bulletin/Repair Instructions
this preliminary information advises a dealer on how to email gds2 session logs into technical assistance.
Unknown Or Other 2026-07-21 · PIT5099J · Service Bulletin/Repair Instructions
pi to help diagnose a/c concern
Unknown Or Other 2026-07-21 · PIT5509N · Service Bulletin/Repair Instructions
this pi provides diagnostic tips for diagnosing electric trailer brakes issues.
Unknown Or Other 2026-05-14 · PIT5509M · Service Bulletin/Repair Instructions
this pi provides diagnostic tips for diagnosing electric trailer brakes issues.
Unknown Or Other 2026-04-01 · PIT3271Q · Service Bulletin/Repair Instructions
this preliminary information communicates information about how to determine if a wheel and tires size change is available.
Showing the 6 most recent of 1,115 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-10-13 · Electrical System:instrument Panel:speedometer/Odometer · 160,000 mi“odometer fraud. the contact owns a 2018 gmc yukon. it was discovered that there was a mileage discrepancy. the vehicle was a dealer sale. at the time of purchase, the vehicle mileage was 72,499. after three months, the vehicle experienced an engine failure, and a worker at a third-party automotive parts distributor and recycling center discove…”
2026-05-13 · Engine“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. …”
2026-04-13 · Power Train“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 is…”
2026-04-03 · Engine And Engine Cooling:cooling System:radiator Assembly · 128,640 mi“the contact owns a 2018 gmc yukon. the contact stated that the vehicle was taken to a local dealer for service, and the contact was informed that the radiator was leaking and needed to be replaced. the contact stated that there were no signs of a leak prior to taking the vehicle for service. the contact was advised by the dealer that it was a commo…”
2026-03-29 · Power Train“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 transm…”
2026-03-10 · Power Train“the 2018 yukon denali has been at the dealership for 7 weeks waiting 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. the transmission was already replaced on this vehicle at 500 miles.…”
2026-01-08 · Vehicle Speed Control“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 b…”
2025-12-23 · Power Train · 104,000 mi“the contact owns a 2018 gmc yukon. the contact stated after the vehicle was serviced, while driving 30 mph and depressing accelerator pedal, the vehicle failed to respond. the contact stated that the vehicle hesitated, and the contact shifted to a lower gear to drive to the residence safely. a dealer was contacted. the vehicle was towed to the deal…”
2025-11-21 · Suspension“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. …”
2025-10-28 · Engine“what component or system failed or malfunctioned, and is it available for inspection upon request? engine failure due to lifter failure and bent push rod and needed cam replaced. it is available for inspection. how was your safety or the safety of others put at risk? could have been catastrophic if i didn't bring in for repair if the engine failed…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.