2003 Chevrolet TrailBlazer Ext
16MPG
Combined
4
Trims
Updated February 27, 2026
Get the full picture on the 2003 Chevrolet TrailBlazer Ext. As a SUV, it achieves 14–16 combined MPG depending on trim and has not yet been rated by NHTSA. Below you’ll find detailed specs for every trim, plus recall information and competitor comparisons.
2003 Chevrolet TrailBlazer Ext Specifications
| Spec | Value |
|---|---|
| Combined MPG | 14–16 combined MPG depending on trim |
| City MPG | 14 |
| Highway MPG | 19 |
| Body Style | SUV |
| Fuel Type | Regular |
| Drive | AWD/4WD |
| Available Trims | 4 |
Available Trims
| Trim | MPG (City/Hwy/Combined) | Engine | Transmission |
|---|---|---|---|
| Auto | 13/19/15 | 4.2L 6cyl | Automatic 4-spd |
| Auto | 13/16/14 | 5.3L 8cyl | Automatic 4-spd |
| Auto | 14/19/16 | 4.2L 6cyl | Automatic 4-spd |
| Auto | 14/18/15 | 5.3L 8cyl | Automatic 4-spd |
Annual Fuel Cost
Based on EPA estimates, the 2003 Chevrolet TrailBlazer Ext costs approximately $2,950 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.
Compare the 2003 Chevrolet TrailBlazer Ext
See how it stacks up against similar vehicles:
Other Model Years
- 2007 Chevrolet TrailBlazer Ext
- 2006 Chevrolet TrailBlazer Ext
- 2005 Chevrolet TrailBlazer Ext
- 2004 Chevrolet TrailBlazer Ext
- 2003 (this page)
- 2002 Chevrolet TrailBlazer Ext
Check Vehicle History
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