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What 639 owners told NHTSA about the 2017 GMC Acadia Denali

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 (639)Crash / fire / injury (14)Transmission & drivetrain (221)Electrical system (169)Airbags (75)Engine (53)Brakes (33)Steering (26)Lights (25)Electronic Stability Control (esc) (13)Lane Departure (11)Seat belts (11)

2 of 639 complaints match · Seat belts · crash/fire/injury only · clear filters

Mar 4, 2024Seat belts1 injury

Seatbelt buckles are defective. Unable to latch properly in first 2 rows. In 3 led row seatbelt is also defective. Somehow my daughter got tangled in seatbelt and could not breathe, I was forced to cut seatbelt with scissors. Always had seatbelt problems since purchase. However due to the trauma my daughter faced I am very concerned.

NHTSA ODI 11575342

Jun 26, 2019AirbagsSeat beltsCrash2 injuries

MY HUSBAND AND I WERE IN A VERY SERIOUS CAR ACCIDENT AND I'M CONCERNED BECAUSE OUR AIR BAGS DID NOT DEPLOY. WE WERE TRAVELING ON A DIAGONAL STREET IN CHICAGO AND HE WAS GOING STRAIGHT. MY RIGHT FRONT FENDER HIT HIS RIGHT FRONT FENDER. HIS AIR BAGS DEPLOYED BUT OURS DID NOT. THE ER TOLD ME IT WAS LIKELY I HIT THE STEERING WHEEL AND IT COULD TAKE UP TO NINE MONTHS TO HEAL FROM HAVING WHIPLASH IN MY SHOULDERS AND NECK. MY HUSBAND HAS BEEN DIAGNOSED AS HAVING A CONTUSION. WE HIT REALLY HARD I WAS TRAVELING ABOUT 25 MPH AND HE WAS PROBABLY DOING 45 MPH. THIS IS A REAL SAFETY ISSUE. MY AIR BAGS MAY OR MAY NOT HAVE MADE THE DIFFERENCE BUT I BELIEVE THEY SHOULD HAVE DEPLOYED.

NHTSA ODI 11222811

Working with the data? Download all 639 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 2017 GMC Acadia Denali verdict →