"How reliable is the 2011 Gmc Sierra 3500?"

"Based on 24 NHTSA complaints, the 2011 Gmc Sierra 3500 has a median complaint mileage of 97500 miles. The most common issue is AIR BAGS."

"What are common problems with the 2011 Gmc Sierra 3500?"

"The most frequently reported component in NHTSA complaints for the 2011 Gmc Sierra 3500 is AIR BAGS, accounting for a significant portion of the 24 total complaints filed."

2011 Gmc Sierra 3500: Reliability Data

Source: NHTSA — 24 complaints

Total Complaints

97,500mi

Median Mileage

AIR BAGS

Top Issue

Crash Reports

When Do Complaints Happen?

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

35,000 25th Percentile

97,500 Median Mileage

106,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

AIR BAGS

FUEL/PROPULSION SYSTEM

WHEELS

POWER TRAIN

UNKNOWN OR OTHER

STRUCTURE:BODY

ELECTRICAL SYSTEM

SUSPENSION:FRONT

VISIBILITY/WIPER

SEAT BELTS

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"WHILE DRIVING A GMC 3500 DENALI HD 4X4 EQUIPPED WITH THE DIESEL ENGINE AND AUTOMATIC TRANSMISSION, WITH LESS THAN 90 MILES ON IT, THE REAR ADJUSTMENT BRACKET FOR THE LEFT SIDE TORSION BAR BROKE AND FELL OFF THE VEHICLE WHILE GOING OVER A SPEED BUMP AT LESS THAN 20MPH. MORE SPECIFICALLY, THE PART MO..."

"VEHICLE WAS TRAVELING DOWN ACCESS ROAD COMING UP TO INTERSTATE OFFRAMP. RIGHT BEFORE YIELD SIGN BOSCH CP4 PUMP FAILED STOPPING MOTOR. BRAKES AND STEERING AFFECTED. JUST ENOUGH MOMENTUM TO FIGHT TRUCK INTO ADJACENT PARKING LOT RIGHT AFTER RAMP. *TR"

"WHILE DRIVING UP HILL THE TRUCK JUST SHUT OFF. COULD NOT START IT AGAIN. THERE WAS NO WARNING SIGNS IT TOOK OVER 2 WEEKS AND 2 DIFFERENT GM DEALERS TO FIGURE OUT IT WAS A FUEL INJECTOR PUMP THAT EXPLODED. THERE WERE NO CODES ON THE TRUCKS COMPUTER TO ACKNOWLEDGE THERE WAS ANY PROBLEM WITH..."

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