AI Damage2004 Chevrolet Avalanche 2500: common problems
Owners of the 2004 Chevrolet Avalanche 2500 filed 10 complaints with NHTSA, most often about service brakes and electrical system. Details by component below, with sources.
Key figures
- Owner complaints
- 10
- involving a crash
- 2
What fails most often
- 1 Service brakes 70% of all complaints
- 2 Electrical system 10% of all complaints
- 3 Fuel system 10% of all complaints
- Service brakes: 7 complaints (70% of all), 2 of them with a crash reported by the owner.
- Electrical system: 1 complaints (10% of all).
- Fuel system: 1 complaints (10% of all).
Symptoms owners describe
How many of the 10 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Service brakes | 7 | 2 | 0 |
| Electrical system | 1 | 0 | 0 |
| Fuel system | 1 | 0 | 0 |
| Other | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
The info that was put in your system is incorrect, the odi number is 10305220 the vechice does not stop short, it takes alot longer to stop, as the brakes fail during anti lock failures also, the vehicle was involved in an accident do to not stopping properly.
The brake line failed due to rust. Braking ability with only the rear brakes active was virtually nonexistent and there was no warnings on the display. I do not understand how the previous investigation into gm brake lines was dismissed.
552(b)(6) brake failure chevrolet avalanche 2500 vin [xxx] , model year 2004 due to corrosion as described by grossman chevrolet service manager brent turchi ( rotted and leaking brake line ) - owner [xxx] brake pedal went all the way to the floor - mr.
I have a 2500 avalanche. Main fuel tank or lines are leaking. This is a 2004.
Speedo at 60 miles per hour when stopped. Increases from there when moving. Can not tell correct speed. Appears to be a common problem with 03 to 06 chevy vehicles. Warranty up on vehicle due to age not miles. Dealer says cost is over $500.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 10,921 of 36,659 model years in the NHTSA data (top 30% most complained about).
On average one model year of the Avalanche 2500 has 15 complaints (6 years in the data). This year has 10, below average.
What to check before buying
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
Other years of this model
Questions and answers
What are the most common problems with the 2004 Chevrolet Avalanche 2500?
Owner complaints to NHTSA most often mention: service brakes, electrical system, fuel system. Total complaints: 10. The most frequent symptoms in complaint texts: brake failure (20%), rust, corrosion (20%), A/C or heater (10%).
How many service bulletins (TSB) were issued for the 2004 Chevrolet Avalanche 2500?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2004 Chevrolet Avalanche 2500 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2004 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.