2003 Chevrolet Avalanche 1500 Electrical System Problems
Owners have filed 84 complaints with NHTSA about electrical system problems on the 2003 Chevrolet Avalanche 1500, 46% of all complaints for this model year. Half of the reports with a mileage happened before 85,000 miles. The words owners use most often: “speedometer started” (10% of reports).
- 84electrical system complaints
- 85,000median miles at failure
- 0mention a crash
- 0mention an injury
- 0related recalls
- $960typical repair cost reported by owners
- 62%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Speedometer started: mentioned in 8 of 84 complaints (10%)
- Instrument cluster: mentioned in 6 of 84 complaints (7%)
- Fast you going: mentioned in 5 of 84 complaints (6%)
How much does it cost to fix?
Owners who wrote down what they paid or were quoted put the typical electrical system repair on the 2003 Chevrolet Avalanche 1500 at $960, and half of them between $770 and $980.
Based on 5 NHTSA complaints about this problem alone that state a repair bill or quote (2007–2014), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.
At what mileage do electrical system problems happen?
Based on 71 complaints that reported the odometer reading.
How serious are the reports?
Of 84 complaints, 1 a fire.
Chevrolet Avalanche 1500 electrical system complaints by model year
| Model year | Electrical System complaints | Share of that year | Median miles |
|---|---|---|---|
| 2013 Avalanche 1500 | 2 | 7% | 55,000 |
| 2011 Avalanche 1500 | 4 | 14% | 65,000 |
| 2010 Avalanche 1500 | 1 | 17% | 120,000 |
| 2009 Avalanche 1500 | 2 | 10% | 61,000 |
| 2008 Avalanche 1500 | 7 | 19% | 36,500 |
| 2007 Avalanche 1500 | 11 | 10% | 51,000 |
| 2006 Avalanche 1500 | 4 | 10% | 87,000 |
| 2005 Avalanche 1500 | 47 | 36% | 59,823 |
| 2004 Avalanche 1500 | 53 | 37% | 72,000 |
| 2003 Avalanche 1500 | 84 | 46% | 85,000 |
| 2002 Avalanche 1500 | 11 | 7% | 115,500 |
When owners reported it
Related recalls (0)
No safety recall lists electrical system for the 2003 Chevrolet Avalanche 1500. A pattern of complaints does not always lead to a recall.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
Service light dose not come on when my truck won't not started up until i got it towed
I bought this vehicle and the cluster is out i do not know what model this is other than a z66 so i cannot see on how to program my phone at to the onstar or any of that i don't know if i have satellite radio there is no auxiliary plug in heated seats it's only the back of the seat that works i'm…
I am a new owner of a 2003 avalanche, i was satisfied with my purchase but my soonroof falls under the appropriate serial numbers (6,000,000-6,300,000) recall states that it may be covered by the company webasto hollandia. Vehicle is fine to drive places but sunroof must be fixed for coming winter…
Frequently asked questions
Do all 2003 Chevrolet Avalanche 1500s have electrical system problems?
No. NHTSA has 84 owner complaints about electrical system for the 2003 Chevrolet Avalanche 1500 (46% of the 182 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the 2003 Chevrolet Avalanche 1500 electrical system?
No recall currently lists electrical system for this vehicle.
At what mileage do electrical system problems start?
The median reported mileage is 85,000 miles: half of the reports with a mileage came before that.
How much does it cost to fix electrical system problems on the 2003 Chevrolet Avalanche 1500?
Owners report a typical cost of $960 (half paid between $770 and $980), from 5 complaints that state a repair bill or quote, in 2026 dollars.
What do owners say about electrical system problems on the 2003 Chevrolet Avalanche 1500?
The most frequent phrase is “speedometer started”, in 8 of 84 complaints, followed by “instrument cluster” (6).
See all 2003 Chevrolet Avalanche 1500 problems or electrical system problems across all Avalanche 1500 years.