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Engine coolingPart report

2009 Chevrolet Avalanche Engine cooling Problems

Complaints
1about this part
Share
1%of 76 total for the year
Median mileage
30,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the engine cooling of the 2009 Chevrolet Avalanche, 1% of the 76 complaints for this model year. Where a mileage was given, the median is 30,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“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 assist and parking assist toggle on and off in rapid succession causing driver to nearly lose control of vehicle. Incidents last for approximately 10 seconds at a time. Incidents happen in clusters and may go weeks or months at a time without incident. …”

NHTSA complaint #10422849, filed 2011-09, 30,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
200911%
200842%
200731%
200557%
200464%
200363%
2002358%

Other parts of the 2009 Chevrolet Avalanche

Air bags
41 complaints
Other or unknown
28 complaints
Body and structure
8 complaints
Electrical system
4 complaints
Vehicle speed control
4 complaints
Fuel system
2 complaints
Brakes
1 complaints
Electronic stability control
1 complaints
Engine
1 complaints
Equipment
1 complaints
Exterior lighting
1 complaints
Steering
1 complaints

← All problems reported for the 2009 Chevrolet Avalanche

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology