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Resources for the Repair and Maintenance of your 2003 Chevrolet Avalanche 1500

2003 Chevrolet Avalanche 1500

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2003 Chevrolet Avalanche 1500 Problems

Drive Train -- Verified

The 4WD transfer case encoder motor position sensor or the selector switch may fail causing the service 4WD message to be displayed. Fault code(s) stored in the transfer case control module will be of assistance in determining the exact fault causing the message to be displayed.

Electrical & Lights -- Verified

The speedometer or other instrument panel gauge may begin to work erratically at times. Our technicians tell us that the instrument cluster must be sent to a repair facility to correct this fault. The warranty has been extended on some of these units to 7 years or 70,000 miles.

Suspension & Steering -- Verified

The steering may develop a clunk type noise from the upper intermediate steering shaft.  Our technicians tell us that you should check with you local GM dealer to find out what the latest repair is for this condition.

Electrical & Lights -- Verified

The daytime running lights are prone to burning out. Our technicians tell us that the light sockets may show signs of heat damage but usually are OK. Always be sure to use the correct replacement bulb for the best life expectancy. The new bulb recommendation for 2002-2003 models is #4114K (trade number).

Exhaust & Emissions -- Verified

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

2003 Chevrolet Avalanche 1500 Recalls (Recent)

Body, Interior & Misc., July 21, 2005

RepairPal Expert Overview:

The second row center seat belt routing may make it difficult to position correctly on smaller passengers. If the seat belt rides up to fit around the abdomen, the risk of internal injury is increased in a crash. Dealers will cut the guide loop, remove a portion of the loop, and the remaining sides should be folded over and secured with a retainer. The recall began July 21, 2005. The GM recall number is 05037.

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Body, Interior & Misc., September 18, 2004

Summary: ON CERTAIN PICKUP TRUCKS AND SPORT UTILITY VEHICLES, THE GALVANIZED STEEL TAILGATE SUPPORT CABLES THAT RETAIN THE TAILGATE IN THE FULL OPEN (HORIZONTAL) POSITION MAY CORRODE, WEAKEN, AND EVENTUALLY FRACTURE. IF BOTH CABLES FRACTURED, THE TAILGATE WOULD SUDDENLY DROP AND STRIKE THE TOP SURFACE OF THE REAR BUMPER.

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Brakes, June 18, 2004

RepairPal Expert Overview:

The hydro-boost housing relief valve bore may be out of specification. The seal may fracture as a result, which may reduce braking assist and slightly increase the steering effort while braking. Under certain conditions, more braking effort will be required to stop the vehicle. Dealers will replace the hydro-boost relief valve. The recall began June 18, 2004. The GM recall number is 04004.

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Engine, February 20, 2003

RepairPal Expert Overview:

In 30 degree left angle frontal crash conditions with a severe enough impact, the fuel tank may be punctured by a torn mid-frame cross member. A fuel leak in the presence of an ignition source may result in a fire. Dealers will install a fuel tank shield. The recall began February 20, 2003. The GM recall number is 03002.

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2003 Chevrolet Avalanche 1500 Questions and Answers

tecarlyle, 2003 Chevrolet Avalanche 1500, Tyler, TX

Driver info center (dash board)is telling me the "left rear door ajar" when it's not. Fuses are good. The door switch is inside the door and can not be seen. What do I do?

Verno, 2003 Chevrolet Avalanche 1500, Janesville, WI

When I bought my car from the dealer used, the knock sensor light came on, and dealer told me that they reset it, and that if it comes on again, they would pay for a new sensor.

What if it'...

pat jr, 2003 Chevrolet Avalanche 1500, Billings, MT

when you turn off the vehicle the heater blower stays on

Visitor, 2003 Chevrolet Avalanche 1500, West Hills, CA

abs and brake lights come on whenever im going over a small bump or pot hole it also says to service brake system when i already serviced the brakes... my speedometer isnt working also..i dont know...

Visitor, 2003 Chevrolet Avalanche 1500, Biloxi, MS

handheld scanner said multiple cyl.misfire,coilpacks on right side would stall running vehicle if disconnected,left side had no change and would not stall vehicle after disconnecting coil packs.

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2003 Chevrolet Avalanche 1500 Reviews

bought my 2003 new - like it but do have a couple problems -the last 3 years in a row ive had to replace all 4 rotors due to rust (truck has 63k miles)and sometimes it decides to go into 4wd by itself when you start it.(already replaced the switch) right now i need to replace the tailgate handle and need to know do i have to remove the interior panel to do this google says no but i cant see how to do it with the upper trim on any help would be greatly appreciated - please send advice to 80yellowvette@comcast.net

why doesn't my chevy avalanche pick up speed fast what could be something that can couse this?

I love my 2003. I have made several upgrades that makes it eveb better with great gas miles. The one thing I don't live is that the drive side fog light burns out about every other month. I also notice we I see other ones that this same light is out on thier truck too. I think it's a Chevy problem. The self leveling thing is a little bit of a pain in the a$$ when towing. Other then that I tell everyone to buy one. My brother bought one after seeing mine. GREAT Truck! I wish Chevy could make more like it.

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