2008 Gmc SIERRA DENALI problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
18 owner complaints analyzed
0 distinct recall campaigns
58,000 mi median reported failure mileage
Scope: 2008 model year. Data snapshot: . 15 complaints include usable failure mileage.
Most common problems
Air Bags is the most frequently named component, appearing in 3 of 18 complaints (16.7%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 2 | 11.1% |
| Electrical and battery issues | 1 | 5.6% |
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 |
|---|---|
| Air Bags | 3 |
| Structure:Body | 3 |
| Unknown Or Other | 3 |
| Electrical System | 2 |
| Structure:Body:Door | 2 |
| Electronic Stability Control (Esc) | 1 |
| Exterior Lighting | 1 |
| Fuel System, Gasoline | 1 |
Air Bags: 3; Structure:Body: 3; Unknown Or Other: 3; Electrical System: 2; Structure:Body:Door: 2; Electronic Stability Control (Esc): 1; Exterior Lighting: 1; Fuel System, Gasoline: 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 | 5 |
| 25,000 to 49,999 | 2 |
| 50,000 to 74,999 | 2 |
| 75,000 to 99,999 | 3 |
| 100,000 to 149,999 | 2 |
| 150,000 and above | 1 |
Under 25,000: 5; 25,000 to 49,999: 2; 50,000 to 74,999: 2; 75,000 to 99,999: 3; 100,000 to 149,999: 2; 150,000 and above: 1
Under 25,000 miles has the most reports with usable mileage (5). 3 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 |
|---|---|
| 2009 | 1 |
| 2010 | 1 |
| 2011 | 2 |
| 2012 | 2 |
| 2013 | 1 |
| 2014 | 4 |
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 2 |
2009: 1; 2010: 1; 2011: 2; 2012: 2; 2013: 1; 2014: 4; 2015: 2; 2016: 1; 2017: 1; 2018: 1; 2019: 2
Pattern summary
Air Bags leads the component reports. Braking behavior appears in 2 complaint narratives. Electrical and battery issues appears in 1 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 10640690 · 2014-10-02 (October 2, 2014)
MY TRUCK STARTED TO ACTIVATE THE BRAKES IN THE MIDDLE OF THE 3 LANE 680 FREEWAY, DOORS STARTED TO LOCK AND UNLOCK, NAVIGATION WENT DARK, MULTIPLE DIFFERENT DISPLAYS ON DASHBOARD, NUMBER OF LIGHTS FROM THE AIR CONDITIONER UNIT, CAME ON. ACCELERATION OR BRAKES WOULD NOT RESPOND, WE WERE UNABLE TO DRIVE OFF THE FREEWAY. IT WAS A SCARY MOMENT, WE WERE LUCKY THAT NO BIG RIG WAS FOLLOWING US, OR IT WOULD HAD RUNS US OVER, AND PROBABLY KILLED US. *TR
Owner-reported narrative. 128,000 miles reported. Look up ODI 10640690 at NHTSA ↗
Owner report 10667174 · 2014-12-18 (December 18, 2014)
I WAS DRIVING ON THE HIGHWAY WHEN ALL THE LIGHTS ON THE INSTRUMENT CLUSTER CAME ON AND WENT CRAZY AND SO DID THE RADIO. THE TRUCKS BRAKES LOCKED UP AND CAME TO A COMPLETE STOP. THE TRUCK TURNED OFF AND WHEN I TRIED TO TURN IT BACK ON IT WAS DEAD. OPEN UP THE HOOD AND DISCONNECTED THE BATTERY AND RECONNECTED AND THE TRUCK TURNED ON THIS HAS NOT BEEN THE ONLY TIME IT HAS HAPPEN. *TR
Owner-reported narrative. 91,030 miles reported. Look up ODI 10667174 at NHTSA ↗