2011 Gmc Sierra: Reliability Data

Source: NHTSA — 67 complaints
67
Total Complaints
45,000mi
Median Mileage
UNKNOWN OR OTHER
Top Issue
1
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

18,000 25th Percentile
45,000 Median Mileage
63,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

UNKNOWN OR OTHER
11
AIR BAGS
10
ENGINE
7
ELECTRONIC STABILITY CONTROL (ESC)
4
VEHICLE SPEED CONTROL
4
POWER TRAIN
4
STRUCTURE:BODY
4
SERVICE BRAKES
3
ELECTRICAL SYSTEM
3
STRUCTURE
3

Severity Assessment

1
Crashes
0
Fires
2
Injuries
0
Deaths

Sample Complaint Reports

"THE HEADLIGHTS DIM THEN RETURN TO NORMAL EVERY TIME THE BREAK IS APPLIED. INTERIOR LIGHTS DIM AND RETURN TO NORMAL WHEN HAZARD LIGHTS ARE ACTIVATED. DEALER FOUND THE COMPLAINT TO BE VALID. BATTERY TESTED AND FOUND TO BE GOOD. VOLTAGE TEST OF ALTERNATOR CHECKED OUT NORMAL. ENGINE AND BODY GROUNDS CHE..."
"THE HEADLIGHTS DIM THEN RETURN TO NORMAL EVERY TIME THE BREAK IS APPLIED. INTERIOR LIGHTS DIM AND RETURN TO NORMAL WHEN HAZARD LIGHTS ARE ACTIVATED. DEALER FOUND THE COMPLAINT TO BE VALID. BATTERY TESTED AND FOUND TO BE GOOD. VOLTAGE TEST OF ALTERNATOR CHECKED OUT NORMAL. ENGINE AND BODY GROUNDS CHE..."
"THE HEADLIGHTS DIM THEN RETURN TO NORMAL EVERY TIME THE BREAK IS APPLIED. INTERIOR LIGHTS DIM AND RETURN TO NORMAL WHEN HAZARD LIGHTS ARE ACTIVATED. DEALER FOUND THE COMPLAINT TO BE VALID. BATTERY TESTED AND FOUND TO BE GOOD. VOLTAGE TEST OF ALTERNATOR CHECKED OUT NORMAL. ENGINE AND BODY GROUNDS CHE..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

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