Safety Score
96
Safe
Recalls
0
Complaints
22
NCAP Stars
—
Recalls (0)
No recalls found for the 2015 GMC Sierra Denali.
Owner Complaints (showing up to 50)
| Date | Component | Crash | Injuries | Summary |
|---|---|---|---|---|
| 2025-12-01 | FUEL SYSTEM, DIESEL | No | 0 | The contact owns a 2015 GMC Sierra 2500 Denali. The contact stated that while driving at 65 MPH, the vehicle lost motiv… |
| 2025-03-22 | ENGINE AND ENGINE COOLING | No | 0 | See attached document for complaint. |
| 2023-03-09 | POWER TRAIN | No | 0 | The contact owns a 2015 GMC Sierra 1500 Denali. The contact stated that while shifting the vehicle from park(P) to driv… |
| 2020-10-01 | SERVICE BRAKES | No | 0 | 4 MONTHS AGO THE DISPLAY PORTRAYED A MESSAGE STATING, TRAILER BRAKE WARNING, HAVE SYSTEM CHECKED. SINCE THAT TIME I HA… |
| 2020-08-11 | UNKNOWN OR OTHER | No | 0 | AC BLOWS HOT AIR QONT GOLD FREON FOR LONGER THEN WEEK AND HALF AND IS BACK TO HOT AIR..LEAD TO BELIEVE ITS THE AC CONDE… |
| 2020-02-09 | SERVICE BRAKES | No | 0 | I WAS BACKING UP AT VERY LOW SPEED THE BRAKE PEDAL GOT VERY HARD AND THE VEHICLE ACTED LIKE IT DID NOT WANT TO STOP I H… |
| 2019-02-19 | SERVICE BRAKES | No | 0 | HARD BRAKE PEDAL WITH INCREASED EFFORT NEEDED TO DEPRESS THE BRAKE PEDAL. FEELS LIKE TRUCK WILL NOT STOP. HAD TO HAVE … |
| 2018-12-10 | SERVICE BRAKES | No | 0 | POOR BRAKE PERFORMANCE. THE BRAKE PEDAL GETS STIFF AT A LOW SPEED AND CAUSES THE TRUCK TO NOT BRAKE COMPLETELY |
| 2018-12-09 | SERVICE BRAKES | No | 0 | FAILURE OF THE BELT DRIVEN VACUUM PUMP WHILE DRIVING CAUSING VERY HARD BRAKING AND ALMOST CAUSED AN ACCIDENT. VACUUM PR… |
| 2018-11-09 | SERVICE BRAKES | No | 0 | POWER BRAKE VACUUM PUMP ISSUE. LOST BRAKES WHILE DRIVING IN STOP AND GO CITY TRAFFIC. HAD TO HAVE TRUCK TOWED, WAS UN… |
| 2018-11-06 | POWER TRAIN | No | 0 | WHEN COMING TO A STOP, APPLYING A STEADY AMOUNT OF BRAKE PRESSURE THE TRANSMISSION SHIFTS AND LOSES ALL FORMS OF ENGINE… |
| 2018-10-15 | ELECTRICAL SYSTEM | No | 0 | INTERIOR DASH LIGHTS GOES OUT AND A FEW MINUTES LATER THE ENGINE CUTS OFF WHILE I'M TRYING TO PARK. EACH TIME WHILE I … |
| 2018-06-18 | ELECTRICAL SYSTEM | No | 0 | VEHICLE STARTED SHOWING "SERVICE LANE DEPARTURE SYSTEM, SERVICE PARK ASSIST, SERVICE TRAILER BRAKE SYSTEM" ALARMS WHILE… |
| 2018-01-28 | SERVICE BRAKES | No | 0 | HARD BRAKE PEDAL. AT LOW SPEED THE BRAKE PEDAL GETS REALLY HARD AND MAKES IT HARD TO STOP THE TRUCK. PEDAL HAS TO GET P… |
| 2018-01-01 | POWER TRAIN | No | 0 | STARTING THE VEHICLE I'M PUTTING THE TRUCK IN REVERSE, THE TRUCK LUNGES BACKWARDS. ALSO A VIOLENT JERK OF THE VEHICLE H… |
| 2017-12-19 | STEERING | No | 0 | TL* THE CONTACT OWNS A 2015 GMC SIERRA DENALI. WHILE DRIVING APPROXIMATELY 60 MPH, THE STEERING LOST POWER AND THE POWE… |
| 2017-07-02 | ENGINE | No | 0 | MY GMC 2015 DIESEL DURIMAX TRUCK HAD THE ENGINE LIGHT TURN ON AND SAID EMISSION NEEDS SERVICED. IT PROCEEDED TO CUT MY … |
| 2017-05-01 | UNKNOWN OR OTHER | No | 0 | BAD WELD ON HVAC CONDENSER. WAITING 7+ WEEKS FOR NATIONAL BACK-ORDERED REPLACEMENT PART. WHY IS THERE NO RECALL SINCE… |
| 2017-04-01 | ELECTRICAL SYSTEM | Yes | 0 | TL* THE CONTACT OWNS A 2015 GMC SIERRA DENALI. THE CONTACT STATED THAT THE VEHICLE EXHIBITED NUMEROUS ELECTRICAL FAILUR… |
| 2016-12-01 | STRUCTURE:BODY:ROOF AND PILLARS | No | 0 | TL* THE CONTACT OWNS A 2015 GMC SIERRA DENALI. WHILE OPERATING THE VEHICLE, RAIN WATER FROM THE ROOF MOUNTED ANTENNA LE… |
| 2016-10-01 | AIR BAGS | No | 0 | 2015 GMC SIERRA. CONSUMER WRITES IN REGARDS TO SENSING AND DIAGNOSTIC MODULE SAFETY RECALL. *LD THE CONSUMER REQUEST… |
| 2016-07-01 | POWER TRAIN | No | 0 | TRANSMISSION IS NOT ABLE TO BE FIXED. THREE REPAIRS AND GM CAN'T FIX. TRANSMISSION JERKS, SLIPS, CLUNKS. UNCOMFORABLE T… |