2009 Gmc Sierra: Reliability Data

Source: NHTSA — 48 complaints
48
Total Complaints
41,000mi
Median Mileage
AIR BAGS
Top Issue
3
Crash Reports

When Do Complaints Happen?

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

30,750 25th Percentile
41,000 Median Mileage
59,250 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

AIR BAGS
8
ELECTRICAL SYSTEM
8
ENGINE
3
STRUCTURE:BODY:DOOR
3
STEERING
2
VEHICLE SPEED CONTROL
2
ELECTRONIC STABILITY CONTROL (ESC)
2
UNKNOWN OR OTHER
2
STRUCTURE:BODY
2
EQUIPMENT
1

Severity Assessment

3
Crashes
0
Fires
2
Injuries
0
Deaths

Sample Complaint Reports

"2009 GMC SIERRA HAD A INCORRECT MARKED WIRE FOR THE TRAILER POWER. *NJ THE CONSUMER STATED WHEN CONNECTING THE TRAILER POWER, HE CONNECTED THE WIRE AT THE FUSE PANEL MARKED TRAILER POWER FEED. WHEN THERE WAS NO POWER AT THE TRAILER CONNECTION HE CONTACTED THE DEALER. THEY DETERMINED THAT THE WIRE ..."
"I RECENTLY PURCHASED A GMC SIERRA CREW CAB PICKUP . WHEN IT RAINS, THE RIGHT FRONT HEADLIGHT FOGS UP CREATING A HAZARD AS ON COMING TRAFFIC CANNOT SEE MY TURN SIGNAL. THE LEFT LIGHT DOES NOT FOG UP. NOW, THE LAW OF PHYSICS TELLS ME THERE IS A LEAK IN THE HEADLIGHT AND NATURALLY THE MOISTURE WILL C..."
"TL*THE CONTACT OWNS A 2009 GMC SIERRA 1500. THE CONTACT STARTED THE IGNITION AND HEARD A LOUD KNOCKING NOISE ON THE OUTSIDE OF THE VEHICLE. THE FAILURE BEGAN ONE WEEK AFTER THE VEHICLE WAS PURCHASED. IN ADDITION, THE BRAKES WOULD SHAKE AND VIBRATE WHEN THEY WERE ENGAGED. THE ENGINE CONSUMED AN EXCES..."

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