2004 GMC Sierra 15 Hybrid
17MPG
Combined
2
Trims
2004
2005 →
Updated February 27, 2026
Get the full picture on the 2004 GMC Sierra 15 Hybrid. As a Truck, it achieves 16–17 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.
2004 GMC Sierra 15 Hybrid Specifications
| Spec | Value |
|---|---|
| Combined MPG | 16–17 combined MPG depending on trim |
| City MPG | 16 |
| Highway MPG | 19 |
| Body Style | Truck |
| Fuel Type | Regular |
| Drive | RWD |
| Available Trims | 2 |
Available Trims
| Trim | MPG (City/Hwy/Combined) | Engine | Transmission |
|---|---|---|---|
| Auto | 16/19/17 | 5.3L 8cyl | Automatic 4-spd |
| Auto | 15/17/16 | 5.3L 8cyl | Automatic 4-spd |
Annual Fuel Cost
Based on EPA estimates, the 2004 GMC Sierra 15 Hybrid costs approximately $2,675 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.
Compare the 2004 GMC Sierra 15 Hybrid
See how it stacks up against similar vehicles:
Other Model Years
- 2018 GMC Sierra 15 Hybrid
- 2017 GMC Sierra 15 Hybrid
- 2016 GMC Sierra 15 Hybrid
- 2013 GMC Sierra 15 Hybrid
- 2012 GMC Sierra 15 Hybrid
- 2011 GMC Sierra 15 Hybrid
- 2010 GMC Sierra 15 Hybrid
- 2009 GMC Sierra 15 Hybrid
- 2006 GMC Sierra 15 Hybrid
- 2005 GMC Sierra 15 Hybrid
- 2004 (this page)
Check Vehicle History
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