Vehicle shown in this step: 2005 Chevrolet Silverado 2500 HD 6.6L V8 Turbo Diesel Extended Cab Pickup (4 Door)
Procedure notes
Where is the battery located in a GMC Sierra 2500 HD?
The video above shows you how to replace the battery in your 2005 GMC Sierra 2500 HD. We recommend changing the battery in GMCs every 4 years. Although some batteries last much longer, most batteries begin breaking down chemically after four years, so you could experience dimmer headlights and other negative effects before you have a dead battery in your Sierra 2500 HD that you need to replace.
The battery location in a GMC Sierra 2500 HD can typically be found in the engine bay, but may be in the trunk, fender or inside of the vehicle. You may need to remove the air filter housing, a plastic engine cover or parts of the cowl to find the battery in your Sierra 2500 HD. See exactly where the battery is located in your 2005 GMC Sierra 2500 HD.