2003 Chevrolet
Avalanche 1500 AWD
Auto 4-spd, 8 cyl, 5.3 L, FLEX-FUEL
Chevrolet Avalanche 1500: best and worst years
Overview
- Body
- Sport Utility Vehicle - 4WDEPA, from EPA, last updated 6/22/2026
- Drivetrain
- 4-Wheel or All-Wheel DriveEPA, from EPA, last updated 6/22/2026
- Transmission
- Automatic 4-spdEPA, from EPA, last updated 6/22/2026
- Powertrain
- GasEPA, from EPA, last updated 6/22/2026
- Fuel
- Gasoline or E85EPA, from EPA, last updated 6/22/2026
Engine & performance
- Aspiration
- Naturally aspiratedEPA, from EPA, last updated 6/22/2026
Efficiency
- MPG Hwy
- 17 mpgEPA, from EPA, last updated 6/22/2026
- MPG City
- 13 mpgEPA, from EPA, last updated 6/22/2026
- MPG Comb
- 14 mpgEPA, from EPA, last updated 6/22/2026
- Fuel $/yr
- $4,450EPA, from EPA, last updated 6/22/2026
- Elec. Range
- 0 miEPA, from EPA, last updated 6/22/2026
Dimensions & capacity
- Wheelbase
- 130 inNHTSA vPIC, from NHTSA vPIC, last updated 10/13/2026
- Curb Weight
- 5,437 lbNHTSA vPIC, from NHTSA vPIC, last updated 10/13/2026
- GVWR class
- Class 2E (6,001 to 7,000 lb)NHTSA vPIC, from NHTSA vPIC, last updated 10/13/2026
Safety NHTSA record NHTSA, model year
- Recalls
- 0
- Owner complaints
- 182 See on NHTSA
- Reported injuries
- 2
Reported problems NHTSA record NHTSA owner complaints, model year
- ELECTRICAL SYSTEM40%
- SERVICE BRAKES13%
- SERVICE BRAKES, HYDRAULIC11%
- AIR BAGS6%
- VEHICLE SPEED CONTROL5%
- STEERING4%
Source: NHTSA owner complaints, 210 total.
Chevrolet Avalanche 1500: best and worst yearsWarranty manufacturer terms, by make
- Basic
- 3 yr / 36k mi
- Powertrain
- 5 yr / 60k mi
- Roadside assistance
- 5 yr / 60k mi
- Maintenance
- 1 yr / 12k mi
- EV battery
- 8 yr / 100k mi
Source: www.gmfleet.com as of 2026-06
Information is gathered on a best-effort basis from public sources, may be incomplete or out of date, and is not purchasing or financial advice. Verify with the manufacturer or dealer before buying.