2011 Gmc SIERRA DENALI problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
28 owner complaints analyzed
0 distinct recall campaigns
65,000 mi median reported failure mileage
Scope: 2011 model year. Data snapshot: . 21 complaints include usable failure mileage.
Most common problems
Unknown Or Other is the most frequently named component, appearing in 17 of 28 complaints (60.7%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Transmission and shifting | 2 | 7.1% |
| Steering behavior | 2 | 7.1% |
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 |
|---|---|
| Unknown Or Other | 17 |
| Air Bags | 10 |
| Structure:Body | 8 |
| Power Train | 2 |
| Structure | 1 |
| Suspension | 1 |
| Wheels | 1 |
Unknown Or Other: 17; Air Bags: 10; Structure:Body: 8; Power Train: 2; Structure: 1; Suspension: 1; Wheels: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 0 |
| 25,000 to 49,999 | 5 |
| 50,000 to 74,999 | 7 |
| 75,000 to 99,999 | 7 |
| 100,000 to 149,999 | 2 |
| 150,000 and above | 0 |
Under 25,000: 0; 25,000 to 49,999: 5; 50,000 to 74,999: 7; 75,000 to 99,999: 7; 100,000 to 149,999: 2; 150,000 and above: 0
50,000 to 74,999 miles has the most reports with usable mileage (7). 7 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 |
|---|---|
| 2015 | 3 |
| 2016 | 1 |
| 2017 | 8 |
| 2018 | 3 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 2 |
2015: 3; 2016: 1; 2017: 8; 2018: 3; 2019: 5; 2020: 6; 2021: 2
Pattern summary
Unknown Or Other leads the component reports. Transmission and shifting appears in 2 complaint narratives. Steering behavior appears in 2 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 10746325 · 2015-08-05 (August 5, 2015)
ON JULY 29, 2015, WHILE DRIVING AT APPROXIMATELY 45 MPH, THE VEHICLE SUDDENLY DOWNSHIFTED ITSELF INTO FIRST GEAR CAUSING THE VEHICLE TO SLOW DOWN SUDDENLY WITH NO NOTICE. I WAS ABLE TO GET THE VEHICLE OFF THE ROAD AND INTO A GAS STATION. AFTER THE FACT THE CHECK ENGINE LIGHT WAS ILLUMINATED. THE VEHICLE WAS TOWED TO THE DEALERSHIP. I WAS TOLD THE TCM (TRANSMISSION CONTROL MODULE) NEEDED REPLACING AND THAT THERE IS A KNOWN ISSUE WITH THIS YEAR TRUCK. THIS IS A VERY DANGEROUS SITUATION TO HAVE YOUR VEHICLE SUDDENLY SLOW DOWN WHILE DRIVING AT…
Owner-reported narrative. 60,000 miles reported. Look up ODI 10746325 at NHTSA ↗
Owner report 11337567 · 2020-07-05 (July 5, 2020)
IN 2017 BEFORE MY VEHICLE COMPLETING TWO YEARS FROM THE DATE OF PURCHASE AT (70,000 KM) THE VEHICLE START SHUDDERING WHEN ACCELERATING AT LOW SPEED, WHEN THE SERVICE WAS DUE I TOOK THE VEHICLE TO DEALER FOR SERVICE & COMPLAINED ABOUT THE SHUDDERING ISSUE, AFTER DIAGNOSING THE VEHICLE THEY SAID THAT THEY HAVE TO REPLACE THE TORQUE CONVERTER, SO THEY DID REPLACE THE TORQUE CONVERTER UNDER WARRANTY AFTER FIXING THE TORQUE CONVERTER ISSUE I FOUND TRACE OF OIL IN FRONT DRIVER SIDE & AGAIN WHEN THE SERVICE WAS DUE I COMPLAINED ABOUT THE LEAK, AFTE…
Owner-reported narrative. 43,750 miles reported. Look up ODI 11337567 at NHTSA ↗
Owner report 10780600 · 2015-10-07 (October 7, 2015)
DASHBOARD CRACK ABOVE STEERING COLUMN AND ABOVE PASSENGER SIDE AIRBAG. THIS ISSUE POSES SAFETY CONCERNS REGARDING WHETHER THE AIRBAG WILL BE PUNCTURED OR OTHERWISE INEFFECTIVE DURING DEPLOYMENT DUE TO THE SHARP CRACKED EDGES OF THE DASH AS WELL AS THE POTENTIAL FOR SHARDS OF CRACKED DASH BECOMING PROJECTILES CAUSING INJURY TO OCCUPANTS DURING A COLLISION. NOTHING HAPPENED TO THE VEHICLE. WE WERE DRIVING DOWN THE FREEWAY AND NOTICED THE CRACK. THE CRACKS BECOME LARGER EVERYDAY.
Owner-reported narrative. 35,000 miles reported. Look up ODI 10780600 at NHTSA ↗
Owner report 10966473 · 2017-03-17 (March 17, 2017)
TL* THE CONTACT OWNS A 2011 GMC SIERRA DENALI. THE CONTACT OBSERVED A FRACTURE IN THE DASHBOARD LEADING TO THE AIR BAG AND STEERING WHEEL. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 80,000.
Owner-reported narrative. 80,000 miles reported. Look up ODI 10966473 at NHTSA ↗