2014 Gmc SIERRA DENALI problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
14 owner complaints analyzed
0 distinct recall campaigns
59,496 mi median reported failure mileage
Scope: 2014 model year. Data snapshot: . 13 complaints include usable failure mileage.
Most common problems
Unknown Or Other is the most frequently named component, appearing in 4 of 14 complaints (28.6%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 5 | 35.7% |
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 | 4 |
| Service Brakes | 3 |
| Air Bags | 2 |
| Structure:Body | 2 |
| Engine | 1 |
| Exterior Lighting | 1 |
| Fuel/Propulsion System | 1 |
| Power Train | 1 |
Unknown Or Other: 4; Service Brakes: 3; Air Bags: 2; Structure:Body: 2; Engine: 1; Exterior Lighting: 1; Fuel/Propulsion System: 1; Power Train: 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 | 2 |
| 25,000 to 49,999 | 3 |
| 50,000 to 74,999 | 5 |
| 75,000 to 99,999 | 2 |
| 100,000 to 149,999 | 1 |
| 150,000 and above | 0 |
Under 25,000: 2; 25,000 to 49,999: 3; 50,000 to 74,999: 5; 75,000 to 99,999: 2; 100,000 to 149,999: 1; 150,000 and above: 0
50,000 to 74,999 miles has the most reports with usable mileage (5). 1 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 |
|---|---|
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 3 |
| 2021 | 1 |
2017: 2; 2018: 4; 2019: 4; 2020: 3; 2021: 1
Pattern summary
Unknown Or Other leads the component reports. Braking behavior appears in 5 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 11170676 · 2019-01-17 (January 17, 2019)
VACUUM PUMP FAILURE WAS NOTICED WHEN PARALLEL PARKING. AFTER HITTING BRAKE SEVERAL TIMES THEY STOPPED WORKING. TOOK EXCESSIVE AMOUNT OF FORCE TO STOP VEHICLE.
Owner-reported narrative. 46,000 miles reported. Look up ODI 11170676 at NHTSA ↗
Owner report 11187199 · 2019-03-16 (March 16, 2019)
IF THE BRAKES ARE PUMPED 2-3 TIMES THE PEDDLE WILL BECOME REALLY FIRM AND HARD TO PRESS. WHEN THIS OCCURS THE TRUCK WILL NOT STOP. YOU HAVE TO STAND ON THE BRAKE PEDAL WITH BOTH FEET TO GET THE TRUCK TO STOP. PRETTY UNNERVING FOR A 75K MIKE TRUCK STILL UNDER DRIVETRAIN WARRANTY BUT NOT COVERED. I USE THIS TRUCK FOR WORK AND HAULING MY KIDS. I DON'T LIKE HAVING MY KIDS IN THIS VEHICLE!
Owner-reported narrative. 70,000 miles reported. Look up ODI 11187199 at NHTSA ↗