"How reliable is the 2009 Chevrolet Avalanche?"

"Based on 96 NHTSA complaints, the 2009 Chevrolet Avalanche has a median complaint mileage of 75000 miles. The most common issue is AIR BAGS."

"What are common problems with the 2009 Chevrolet Avalanche?"

"The most frequently reported component in NHTSA complaints for the 2009 Chevrolet Avalanche is AIR BAGS, accounting for a significant portion of the 96 total complaints filed."

2009 Chevrolet Avalanche: Reliability Data

Source: NHTSA — 96 complaints

Total Complaints

75,000mi

Median Mileage

AIR BAGS

Top Issue

Crash Reports

When Do Complaints Happen?

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

60,000 25th Percentile

75,000 Median Mileage

88,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

AIR BAGS

UNKNOWN OR OTHER

VEHICLE SPEED CONTROL

ELECTRICAL SYSTEM

STRUCTURE:BODY

FUEL/PROPULSION SYSTEM

STRUCTURE:INTERIOR PANELS:DASHBOARD

STRUCTURE

POWER TRAIN

ENGINE

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"TL* THE CONTACT OWNS A 2009 CHEVROLET AVALANCHE. WHILE THE CONTACT WAS STOPPED WITH THE VEHICLE IN DRIVE THE VEHICLE SUDDENLY ACCELERATED WITHOUT WARNING CAUSING THE CONTACT TO CRASH INTO A GARAGE DOOR. THE ACCELERATION COULD ONLY BE STOPPED BY PLACING THE VEHICLE INTO THE PARK GEAR. THE VEHICLE WA..."

"IPCW INPROCARWEAR.COM FROM CALIFORNIA-USA. I PURCHASED TAIL LIGHTS FOR MY TRUCK FROM THIS WEBSITE, THE LIGHTS STARTED ON FIRE AND ALMOST BURNED MY TRUCK DOWN. I PURCHASED A SECOND SET THINKING THE FIRST WHERE FAULTY AND THE SECOND SET ALSO FAILED TO WORK PROPERLY AND HAVE ELECTRICAL ARC MARKS INSIDE..."

"WHILE DRIVING AT HIGHWAY SPEEDS IN A 2009 CHEVROLET AVALANCHE, THE ELECTRONIC POWER WILL SHUT OFF TO THE VEHICLE ON AN INTERMITTENT BASIS. INTERIOR LIGHTS FLASH DISORIENTING THE DRIVER, LOCKS SWITCH ON AND OFF, POWER TO THE ENGINE IS INTERMITTENT AND SURGES FORWARD UPON POWER COMING BACK. TRACTION ..."

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