Most common 2005 Chevrolet Avalanche 1500 problems
Share of the 129 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Chevrolet Avalanche 1500 complaints by model year
Best Avalanche 1500 years: 2010, 2012, 2006. Years to avoid: 2003, 2005, 2004, 2002, 2007. Compare all years →
2005 Chevrolet Avalanche 1500 recalls (1)
Engine and engine cooling
On certain trucks equipped with an 8.1l v8 (rpo l8-VIN g) engine have a condition in which the engine fuel rail pulse damper retainer clip May fracture resulting in inadequate retention of the damper.
Remedy: Dealers will replace the engine fuel rail pulse damper retainer clip free of charge. The recall began on August 31, 2006. Owners May contact Chevrolet at 1-800-630-2438 and GMC trucks at 1-866-996-9463.
What 2005 Chevrolet Avalanche 1500 owners say
Electrical system all 47 →
Odometer Fraud. The contact purchased a 2005 Chevrolet Avalanche 1500. It was discovered that there was a mileage discrepancy. The vehicle was a private sale from a towing company. At the time of purchase, the vehicle mileage was 163,428, and at the time of registration, it was discovered that the mileage was 167,126. The contact stated that the Carfax Report indicated that the mileage was 141,207, and that the odometer had been rolled back.
The fan motor control relay and connector short circuited and burned up. The location of this relay is behind and slightly below the glove box. General motors issued a service bulletin special coverage adjustment bulletin no 11046 for this problem, however it was only valid in Canada, not the united states.
Transmission & drivetrain
While cruising on rt 101 at 65 MPH, vehicle automatically downshifted into second gear for no reason. In response, I was forced to decelerate to 35 MPH. Tried explicitly placing vehicle in third instead of "d" for drive, but, the drive train was unresponsive. Shortly thereafter, a "hot transmission" message appeared on dash and I pulled over and checked fluids. Fluids looked good. Drove vehicle home in second gear without issue. Upon investigation, I discovered that my Avalanche was built with a widely recognized design flaw and undersized transmission. Various sources suggested I file complaint this address: https://www-odi.NHTSA.dot.gov/vehiclecomplaint/index.xhtml.
Driving down county rd stopped at stop sign. Started to take off it started slipping then quit pulling completly.puet it in all drives 1,2,3, & d nothing happened cut engine off put it in drive it started out like nothing happened for short distance then same thing again.
Fuel & propulsion system
The defective fuel lines rubbed together and caused a leak. I paid a local dealership about $1100 dollars to replace the fuel lines as it was unsafe. My vehicle is not under a recall but in researching, it was discovered that others have a recall. I opened an incident with Chevrolet as a defect but they were not able to assist as my truck is over 70K miles and pasted the warranty, the fuel lines are next to the catalytic converter and would have caused a fire.
While fueling there seems to be a backlash air bubble that occurs and it takes approximately 10 minutes to put $30 worth of fuel. While pumping the gas no matter how slow or fast as the safety is in place to stop the fuel from coming out of the fuel neck where it meets the fuel going in this is normal to kick off the fuel so spillage does not become a problem however when you stop fueling there is a burp back as in a air bubble that splashes outside the vehicle which could potentially splash in a face or on your skin and it also runs down the side of the body of the vehicle again that is when fueling has stopped it burps the fuel out of the vehicle. Obviously the vehicle is stationary while fueling. This occurs no matter what gas station is used old new it doesn't matter.
2005 Chevrolet Avalanche 1500 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 5.3L 8-cyl | 4-speed automatic | RWD | 13 / 18 / 15 |
| 5.3L 8-cyl | 4-speed automatic | 4WD/AWD | 13 / 17 / 14 |
EPA ratings. Class: SUV.
Frequently asked questions
Is the 2005 Chevrolet Avalanche 1500 a good car?
Based on 129 owner complaints filed with NHTSA, the 2005 Avalanche 1500 rates avoid: 3.5× as many complaints as a typical year of the Avalanche 1500 at the same age. It is one of the Avalanche 1500 years we suggest avoiding. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2005 Chevrolet Avalanche 1500?
The electrical system — 47 complaints, 36% of all complaints for this model year, most often about instrument cluster/panel. Next are the transmission & drivetrain (17) and fuel & propulsion system (14).
How many recalls does the 2005 Chevrolet Avalanche 1500 have?
There is 1 recall for the 2005 Chevrolet Avalanche 1500, the most recent from August 3, 2006 (engine and engine cooling). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Chevrolet Avalanche 1500?
The best years by complaints, compared at the same age, are 2010, 2012 and 2006. Years to avoid or approach with caution: 2003, 2005, 2004, 2002 and 2007. See the full Chevrolet Avalanche 1500 years comparison.
At what mileage do 2005 Chevrolet Avalanche 1500 problems happen?
The median mileage reported in complaints is about 63,000 miles; 32% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.