2019 Gmc Sierra Denali: Reliability Data
When Do Complaints Happen?
Distribution of NHTSA complaints by vehicle mileage at time of report.
What Fails?
Most reported component issues from NHTSA complaints.
Severity Assessment
Sample Complaint Reports
"TL* THE CONTACT OWNS A 2019 GMC SIERRA DENALI. WHILE DRIVING 55 MPH, THE TONNEAU COVER DETACHED FORM THE BED OF THE VEHICLE. THE CONTACT RECEIVED A RECALL NOTICE FOR NHTSA CAMPAIGN NUMBER: 19E031000 (EQUIPMENT) ON MAY 11, 2019, THE SAME DAY AS THE COVER DETACHED FROM THE VEHICLE. THE VEHICLE WAS NOT..."
"TL* THE CONTACT OWNS A 2019 GMC SIERRA DENALI. WHILE DRIVING 55 MPH, THE TONNEAU COVER DETACHED FORM THE BED OF THE VEHICLE. THE CONTACT RECEIVED A RECALL NOTICE FOR NHTSA CAMPAIGN NUMBER: 19E031000 (EQUIPMENT) ON MAY 11, 2019, THE SAME DAY AS THE COVER DETACHED FROM THE VEHICLE. THE VEHICLE WAS NOT..."
"TL* THE CONTACT OWNS A 2019 GMC SIERRA DENALI. WHILE DRIVING 55 MPH, THE TONNEAU COVER DETACHED FORM THE BED OF THE VEHICLE. THE CONTACT RECEIVED A RECALL NOTICE FOR NHTSA CAMPAIGN NUMBER: 19E031000 (EQUIPMENT) ON MAY 11, 2019, THE SAME DAY AS THE COVER DETACHED FROM THE VEHICLE. THE VEHICLE WAS NOT..."
Source: NHTSA ODI Complaints Database. Names and identifying details omitted.
When Were Complaints Filed?
Number of complaints by the year the issue occurred.
When Does Each Component Fail?
Median mileage at complaint for top components.
Where Are Complaints Coming From?
Top states by complaint count.
Who Files Complaints?
Gmc Sierra Denali — Other Years
See how this model compares across different model years.
Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.
Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.
Data through: 2026-03-28
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