2015 Gmc SIERRA problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
53 owner complaints analyzed
6 distinct recall campaigns
2,750 mi median reported failure mileage
Scope: 2015 model year. Data snapshot: . 40 complaints include usable failure mileage.
Most common problems
Exterior Lighting is the most frequently named component, appearing in 29 of 53 complaints (54.7%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Transmission and shifting | 5 | 9.4% |
| Steering behavior | 5 | 9.4% |
| Braking behavior | 4 | 7.5% |
| Electrical and battery issues | 1 | 1.9% |
| Fuel system concerns | 1 | 1.9% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Exterior Lighting | 29 |
| Power Train | 6 |
| Steering | 6 |
| Air Bags | 4 |
| Engine | 2 |
| Exterior Lighting:Headlights | 2 |
| Service Brakes | 2 |
| Unknown Or Other | 2 |
Exterior Lighting: 29; Power Train: 6; Steering: 6; Air Bags: 4; Engine: 2; Exterior Lighting:Headlights: 2; Service Brakes: 2; Unknown Or Other: 2
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 34 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 2 |
| 100,000 to 149,999 | 1 |
| 150,000 and above | 3 |
Under 25,000: 34; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 2; 100,000 to 149,999: 1; 150,000 and above: 3
Under 25,000 miles has the most reports with usable mileage (34). 13 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2014 | 3 |
| 2015 | 19 |
| 2016 | 22 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 1 |
2014: 3; 2015: 19; 2016: 22; 2022: 3; 2023: 3; 2024: 2; 2025: 1
Pattern summary
Exterior Lighting leads the component reports. Transmission and shifting appears in 5 complaint narratives. Steering behavior appears in 5 complaint narratives. Braking behavior appears in 4 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10693290 · 2015-03-10 (March 10, 2015)
2015 GMC SIERRA 6-SPEED AUTOMATIC TRANSMISSION FAILURE @ 1800 MILES. AS I WAS DECELERATING FROM APPROXIMATELY 30 MPH TO MAKE A TURN INTO A ROAD THE TRANSMISSION DOWNSHIFTED AS EXPECTED TO LOW GEAR. AS I ACCELERATED THE TRANSMISSION SHIFTED TO 2ND NORMALLY. AT THIS POINT THE TRANSMISSION SHOULD HAVE SHIFTED INTO 3RD GEAR BUT THE TACHOMETER JUMPED TO 3000RPM BEFORE I REALIZED THAT THE TRANSMISSION HAD SHIFTED INTO WHAT SEEMED LIKE NEUTRAL. THIS LEFT ME BLOCKING TRAFFIC WITH A TRUCK THAT WOULD NOT GO OVER 20 MPH. WHEN I SLOWED SUFFICIENTLY THE …
Owner-reported narrative. 1,800 miles reported. Look up ODI 10693290 at NHTSA ↗
Owner report 10747035 · 2015-08-07 (August 7, 2015)
TL* THE CONTACT OWNS A 2015 GMC SIERRA. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE TRANSMISSION VIBRATED CAUSING A HESITATION WHEN THE GEARS SHIFTED. THE CONTACT MENTIONED THAT THE FAILURE WAS MOST SEVERE WHILE DRIVING AT SPEEDS BETWEEN 40-50 MPH. THE VEHICLE WAS TAKEN TO A DEALER WHO CHANGED THE GEAR RATIO AND ADJUSTED THE REAR END. THE VEHICLE WAS REPAIRED, BUT THE FAILURE RECURRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 250.
Owner-reported narrative. 250 miles reported. Look up ODI 10747035 at NHTSA ↗
Owner report 10717123 · 2015-05-18 (May 18, 2015)
TL* THE CONTACT RENTED A 2015 GMC SIERRA. WHILE DRIVING AT AN UNKNOWN SPEED, THE CONTACT HEARD A NOISE COMING FROM THE STEERING WHEEL AND THE VEHICLE INDEPENDENTLY VEERED TO THE LEFT. IN ADDITION, THE CONTACT STATED THAT THE STEERING WHEEL BECAME DIFFICULT TO TURN. THE CONTACT HAD TO APPLY FORCE TO THE STEERING WHEEL IN ORDER TO TURN THE VEHICLE. IN ADDITION, THE SERVICE POWER STEERING AND THE DRIVE WITH CARE MESSAGES WERE DISPLAYED ACROSS THE MESSAGE BOARD. THE FAILURE RECURRED ON NUMEROUS OCCASIONS. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. …
Owner-reported narrative. 900 miles reported. Look up ODI 10717123 at NHTSA ↗
Owner report 10810811 · 2015-12-16 (December 16, 2015)
STEERING WHEEL AND TRUCK VIBRATES/SHAKES AND VARIOUS SPEEDS.
Owner-reported narrative. 200 miles reported. Look up ODI 10810811 at NHTSA ↗
Owner report 10693427 · 2015-03-10 (March 10, 2015)
THE PROJECTION STYLE HEADLIGHTS DO NOT ILLUMINATE THE ROADWAY SUFFICIENTLY ENOUGH AT NIGHT TO TRAVEL MORE THAN 30 MPH. WHILE TRAVELING ON RURAL AND MOUNTAIN ROADS YOU CANNOT SEE FAR ENOUGH TO SEE OBSTRUCTIONS, WILDLIFE OR PEDESTRIANS AT NIGHT. THE HORIZONTAL CUTOFF LINE OF THE LIGHTS ON LOW BEAM DOES NOT ALLOW YOU TO SEE THE TOPS OF SMALL RISES IN THE ROADWAY AS CLOSE AS 30 FEET AWAY. WITH THIS STYLE OF PROJECTION LIGHTING THERE IS NO SPILLAGE OF LIGHT ABOVE ESTABLISHED LIGHT SHADE COVER SETTING ON LOW BEAMS. IT IS COMPLETELY DARK ABOVE THIS LI…
Owner-reported narrative. 1,000 miles reported. Look up ODI 10693427 at NHTSA ↗
Owner report 10839187 · 2016-03-01 (March 1, 2016)
DRIVING NORTH ON THE GARDEN STATE PARKWAY IN THE CENTER LANE IT FELT LIKE I HAD A BACK TIRE BLOWOUT BUT WHAT HAPPENED WAS MY REAR AXLE BROKE CAUSING MY VEHICLE TO BE EXTREMELY HARD TO CONTROL. I WAS TRYING TO STEER THE VEHICLE BUT COULD NOT CONTROL THE TRUCK, IT FELT LIKE I HAD LIMITED BRAKING ABILITY, SMASHING INTO GUARDRAIL IT FINALLY CAME TO A STOP.
Owner-reported narrative. 16,469 miles reported. Look up ODI 10839187 at NHTSA ↗
Owner report 10852825 · 2016-03-31 (March 31, 2016)
I HAVE BEEN HAVING A PROBLEM WITH THE TRAILER BRAKE CONTROLLER ON MY K3500 TRUCK. RECENTLY THE MESSAGE "CHECK TRAILER WIRING" HAS BEEN COMING ON FREQUENTLY. AT THE SAME TIME, THE BRAKING CONTROLLER SHUTS OFF POWER TO THE TRAILER BRAKES. THIS HAS RESULTED IN A VERY UNSAFE CONDITION, ESPECIALLY WITH A TRAILER THAT WEIGHS OVER 14,000 POUNDS. THIS HAS BEEN GOING ON FOR 6 MONTHS NOW. REPEATED ATTEMPTS BY BOTH THE GMC DEALER AND THE TRAILER DEALER HAVE FAILED TO RESOLVE THE PROBLEM. I HAVE BEEN TOLD, BY THE DEALER, THAT THE PROBLEM STARTED APPR…
Owner-reported narrative. 8,000 miles reported. Look up ODI 10852825 at NHTSA ↗
Owner report 11657768 · 2025-04-30 (April 30, 2025)
The contact owns 2015 GMC Sierra 1500. The contact stated that while driving on several occasions at various speeds, the vehicle lost motive power. The contact stated that the check engine warning light was illuminated for approximately a month. The vehicle was taken to an independent mechanic and the contact was informed the high-pressure fuel pump was leaking fuel into the crank case, and the high-pressure fuel pump needed to be replaced. The vehicle was repaired; however, the failure reoccurred approximately 1 year and 5 months later. The ve…
Owner-reported narrative. 178,137 miles reported. Look up ODI 11657768 at NHTSA ↗