Vehicle Data Hub

2003 Chevrolet Avalanche 1500 problems

NHTSA has received 213 complaints about the 2003 Chevrolet Avalanche 1500, and 40% of them involve electrical system. Next are brakes (26%) and air bags (6%).

At a glance

Complaints
213 filed with NHTSA
Most reported
Electrical system 40% of complaints
Crashes and fires
9 and 3
Injuries and deaths
4 and 0
Typical mileage
90,000 miles 175 complaints with mileage

Source: NHTSA owner complaints

Where the complaints are

Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.

  • Electrical system 40%
  • Brakes 26%
  • Air bags 6%
  • Cruise control 5%
  • Steering 4%
  • Body & structure 4%
  • Engine 2%
  • Wipers, windshield & visibility 2%
  • Fuel system 2%
  • Suspension 2%

When problems show up

Complaints by mileage, 2003 Chevrolet Avalanche 1500 Complaints by odometer reading in 20,000-mile steps. The median is about 90,000 miles. 0k to 20k miles: 6 complaints 20k to 40k miles: 6 complaints 40k to 60k miles: 29 complaints 60k to 80k miles: 33 complaints 80k to 100k miles: 31 complaints 100k to 120k miles: 23 complaints 120k to 140k miles: 15 complaints 140k to 160k miles: 13 complaints 160k to 180k miles: 8 complaints 180k to 200k miles: 3 complaints 200k+ miles: 8 complaints 040k80k120k160k200k miles Typical: 90,000 miles
Based on 175 complaints that include mileage. 23% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.
View the numbers
MileageComplaints
0k to 20k miles6
20k to 40k miles6
40k to 60k miles29
60k to 80k miles33
80k to 100k miles31
100k to 120k miles23
120k to 140k miles15
140k to 160k miles13
160k to 180k miles8
180k to 200k miles3
200k+ miles8

What the data shows

Of the 175 complaints that include odometer readings, half describe a problem before roughly 90,000 miles. For electrical system specifically, the median reported mileage is about 85,000 miles (72 complaints with mileage).

Safety-related details: 9 complaints mention a crash; 3 complaints mention a fire; 4 injuries reported.

Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 2003 ranks 2nd most-complained-about out of 10 model years of the Chevrolet Avalanche 1500 with enough data (88 complaints in that window).

What owners wrote

A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.

Speedometergauge stoop working along with the oil pressure gauge tailgate caused a one [xxx] to rupture the tendants in his left knee due to the malfunctioning of the cable straps that hold the tailgate. ”

Reported at 109,097 miles, December 2009 FireInjury

I was driving west on peters rd in middlefield when I hit a patch of black ice putting the truck into a skid which put me in the ditch I hit a mailbox and a culvert (drain pipe) head on tearing up the whole front end of the avalanche it hit right on the sensors but the air bags never deployed.

Reported at 172,000 miles, January 2015 CrashInjury

The plastic cladding on my 2003 chevrolet avalanche turned from its original black to a chalky color with streaking. This was not covered under the warranty, according to the dealership. The truck was exposed to normal environmental conditions in alabama and tennessee.

Reported at 36,000 miles, October 2005

I have complained before, want to know why this has not been recalled. Light came on for no reason. Wasn't in any kind of an accident. It is defective and no one will help get it fixed. There already is TSB from 2006. We moved from pennsylvania to florida and after a couple of months it came on and stayed on.

Reported at 120,000 miles, October 2012

Other model years of the Avalanche 1500

Best and worst years for the Chevrolet Avalanche 1500