2015 GMC Yukon XL service brakes problems
62 owner complaints filed with NHTSA name the service brakes on the 2015 GMC Yukon XL — 20% of all complaints for this model year.
What owners report
“Service Box appears indicating - "Trailer Brake System" with a loud BING, BING, BING Alert sound. It continues every few minutes... Please note: we aren't using a trailer... I have googled/youtube it and found that this is an issue with many owners. They indicate that the wire harness in between…”
filed Jun 9, 2025
“I purchased a 2015 GMC Yukon in March 2024 I drive the vehicle 9 mons, 7500 miles the vehicle has been in service at my local dealership since Dec 13, 2024, for engine and transmission replacement, I have had the vehicle back 3 weeks not the warning light and service warning chime for the "Service…”
filed May 28, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Service Brakes problems in other Yukon XL years
| Year | Reports | Share |
|---|---|---|
| 2025 Yukon XL | 5 | 23% |
| 2024 Yukon XL | 1 | 2% |
| 2023 Yukon XL | 8 | 4% |
| 2022 Yukon XL | 3 | 2% |
| 2021 Yukon XL | 6 | 3% |
| 2020 Yukon XL | 3 | 7% |
| 2019 Yukon XL | 4 | 6% |
| 2018 Yukon XL | 10 | 19% |
| 2017 Yukon XL | 22 | 15% |
| 2016 Yukon XL | 40 | 20% |
| 2013 Yukon XL | 1 | 5% |
| 2008 Yukon XL | 1 | 1% |
Other reported problem areas on the 2015 GMC Yukon XL
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.