Home · 2025 GMC Yukon Denali Xl 1500 · Complaints

What 46 owners told NHTSA about the 2025 GMC Yukon Denali Xl 1500

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (46)Crash / fire / injury (1)Engine (30)Electrical system (6)Driver assistance (5)Transmission & drivetrain (5)Brakes (2)Fuel system (2)Lane Departure (2)Airbags (1)Backup camera & sensors (1)Speed control (1)

1 of 46 complaints match · Speed control · clear filters

Oct 9, 2025Speed controlDriver assistance

After less than 2000 miles, the OnStar module failed, which removed the capability for emergency assistance, GPS, advanced cruise control, etc. The part is on back order with no ETA, and it appears, based on my research, that this is a common problem with GM vehicles for the past several years. Not having the emergency assistance phone system available is an extreme safety issue, as there are many areas of the US that do not have adequate cell coverage to get assistance in an emergency. It seems as though GMC does not care.

NHTSA ODI 11692360

Working with the data? Download all 46 complaints as CSV · fetched from NHTSA July 25, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2025 GMC Yukon Denali Xl 1500 verdict →