2021 GMC Yukon Other or unknown Problems
- Complaints
- 23about this part
- Share
- 7%of 344 total for the year
- Median mileage
- 86,000miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 23 complaints about the other or unknown of the 2021 GMC Yukon, 7% of the 344 complaints for this model year. Where a mileage was given, the median is 86,000 miles.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I was driving down the highway and all at once a bunch of different lights and emergency warnings started flashing on my dashboard and my car was almost like sputtering like it wasn’t getting the gas it needed or something. You could feel lots of movement right up front and I was forced to pull over and get towed. They said the engine would need to be completely replaced.”
NHTSA complaint #11759232, filed 2026-08“The GMC is starting to loss power in the engine. GMC has not send me an appointment to inspect the engine. This vehicle is my only transportation to work and doctors appointment. This is not fair for a powerful company like GMC is not taking the ownership of the engine in this vehicle. I need action asap. Please assist. Thank you”
NHTSA complaint #11674211, filed 2025-07“On a road trip out of state we stopped for gas. We got back on the road and few miles out the car suddenly slowed and gave a message on the screen something about acceleration. We pulled over and next the reverse didn’t work. We stayed overnight then next day the reverse still did not work. We were able to place in drive and continue on but we don’t have fully functioning reverse mode.”
NHTSA complaint #11477200, filed 2022-08“I was driving about 40 mph on a rural road when my vehicle stalled. I thought I was out of gas but I wasn’t. I tried to turn it around but I had no power. I pressed the gas but it would not do anything . It would not crank back up. I called my husband and he came and put gas in it and it still wouldn’t work. I was left stranded in the middle of the road on a curve. No warning lamps were on that I could recall. I’m having it towed to the dealer today. There are 39K miles on the car.”
NHTSA complaint #11547668, filed 2023-10“I have a 2021 GMC Yukon with 74,000 miles I was recently told I need a new transmission.I am am trying to understand why a car that is 5 years with all the services done by Lehman GMC in North Miami would need a new transmission they have been servicing this car and no one mention anything breaking down of need of repair until now. I spoke with the service manager Franklin and he stated to me another client had the same issue and he flush the transmission just like I am doing today and it only worked for a short time and afterwards he had to replace the transmission. …”
NHTSA complaint #11710688, filed 2026-01Related service bulletins
- 11038139Oct 5, 2026This preliminary PI was created to advise techniians in the field that they will not be able to perform a GDS automated bleed with the scan tool dues to a issue with the software…
- 11037555Sep 26, 2026This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
- 11037260Sep 10, 2026This preliminary information communicates diagnostic tips for air leveling suspension system.
- 11037253Sep 4, 2026This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- 11036702Aug 26, 2026This PI provides a diagnostic tip when fuse F4DR is opening and dealerships are to inspect the wiring at the center console lid.
- 11036392Aug 20, 2026This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
- 11035351Jul 24, 2026This PI Communicates information to ensure Memory Recall is enabled to ensure memory mirrors return to set position after curbview assist is used.
- 11035340Jul 21, 2026PI to help diagnose A/C concern
- 11035308Jul 21, 2026This PI provides diagnostic tips for diagnosing electric trailer brakes issues.
- 11034769Jun 23, 2026This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.
Other or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 3 | 7% |
| 2025 | 6 | 11% |
| 2024 | 9 | 8% |
| 2023 | 21 | 9% |
| 2022 | 10 | 5% |
| 2021 | 23 | 7% |
| 2020 | 3 | 8% |
| 2019 | 5 | 9% |
| 2018 | 8 | 11% |
| 2017 | 23 | 12% |
| 2016 | 32 | 12% |
| 2015 | 44 | 8% |
| 2014 | 24 | 43% |
| 2013 | 52 | 44% |
| 2012 | 35 | 56% |
| 2011 | 55 | 35% |
| 2010 | 39 | 37% |
| 2009 | 30 | 32% |
| 2008 | 29 | 15% |
| 2007 | 64 | 15% |
| 2006 | 6 | 22% |
| 2005 | 3 | 4% |
| 2004 | 7 | 4% |
| 2003 | 4 | 2% |
| 2002 | 4 | 3% |
| 2001 | 4 | 2% |
| 2000 | 2 | 1% |
| 1999 | 1 | 0% |
| 1998 | 3 | 4% |
| 1997 | 2 | 2% |
| 1996 | 2 | 3% |
| 1995 | 5 | 6% |
Other parts of the 2021 GMC Yukon
190 complaintsFuel system
56 complaintsTransmission and drivetrain
55 complaintsEngine cooling
32 complaintsElectrical system
31 complaintsForward collision avoidance
19 complaintsAir bags
18 complaintsBrakes
12 complaintsSteering
11 complaintsSeats
7 complaintsSuspension
6 complaintsVehicle speed control
6 complaints
← All problems reported for the 2021 GMC Yukon
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology