Home · 2015 GMC Acadia Denali · Complaints
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.
29 of 247 complaints match · Electrical system · clear filters · page 2 of 2
SIDE DETECTION, FRONT AND REAR CAMERAS FAILED DUE TO CORROSION OF HARNESS (84004718) AND TWO MODULES (84031087). REPLACEMENT OF THESE COMPONENTS REQUIRED TO REPAIR PROBLEM. HAD TO WAIT OVER A MONTH FOR REPLACEMENT PARTS. THIS IS A SAFETY HAZARD.
NHTSA ODI 11084958
WHEN DRIVING STABLITRAC, ABS, ALL WHEEL DRIVE FAILS GIVING ALARMS ON THE DASH. SUV STARTS SO SHUTTER AND LOOSE ACCELERATION. IF THE CAR IS STOPPED AND SHUT OFF IT WILL CLEAR. WHEN YOU START DRIVING AGAIN IT WILL RANDOMLY DO IT AGAIN, SUCH AS WHEN YOU TURN A CORNER OR PULL OUT TO PASS SOMEONE. I HAS HAPPENED A COUPLE OF TIMES. THE LAST TIME WAS WORSE. I ALMOST GOT HIT BECAUSE IT LOST POWER. LOOKING ON LINE IT LOOKS LIKE THE SAME PROBLEM THAT OTHER GMC VEHICLES HAVE A HISTORY OF.
NHTSA ODI 11047312
LETTER FROM SENATOR FEINSTEIN INQUIRY ON BEHALF OF CONSTITUENT IN REGARDS TO HAVING PROBLEMS WITH GMC SIERRA DENALI PICKUP 2015. *LD THE CONSUMER STATED THE VEHICLE HAS HAD MULTIPLE ISSUES WITH THE SUSPENSION, TRANSMISSION, AND ELECTRONICS. THE VEHICLE WOULD RIDE ROUGH AND THE STABILITY LIGHT WOULD ILLUMINATE. THE TRANSMISSION NEEDED TO BE REPLACED. THE ELECTRONIC DASH BLACKED OUT AND WOULD NOT FUNCTION, THE SETTIGNS SWITCHED ON THEIR OWN. THE VEHICLE DIED AND SHIFTED DANGEROUSLY. THE MANUFATURER WAS NOTIFIED. THE CONSUMER A FIX WAS UNAVAILABLE. UPDATED 08/09/2017*JS
NHTSA ODI 11014368
DRIVING AT 34-45 MPH LOSE ALL ENGINE POWER AND HAVE TO PULL OVER. VEHICLE TOTALLY LOSES ALL POWER. ENGINE SHUTS OFF.
NHTSA ODI 10825510
Working with the data? Download all 247 complaints as CSV · fetched from NHTSA July 25, 2026