8.0

pretty bad
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
5,000 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2009 Chevrolet Silverado 1500 Hybrid cooling system problems

cooling system problem

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2009 Chevrolet Silverado 1500 Hybrid Owner Comments

problem #1

Dec 192009

Silverado 1500 Hybrid 4WD 8-cyl

  • 5,000 miles

A D V E R T I S E M E N T S

I hear a high pitched whining noise under the hood. Varies with engine RPM, vehicle can be parked and you'll still hear it. Only happens in extreme cold situations, usually sub zero. I live in fairbanks. Other than the noise, vehicle operates just fine. It can be quite loud. This problem is intermittent. Haven't been able to make it to the dealership while it's happening. Dealership suggested changing the heat setting from floor/dash to just floor. That fixes it. Apparently this isn't enough info for them as they don't know what to fix. I wanted this on record in the event something broke just after it went out of warranty. Currently approaching 25K miles on the truck.

- Fairbanks, AK, USA

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