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The video above shows you how to replace the battery in your 2003 GMC Sierra 1500. 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 1500 that you need to replace.
Replacing the battery in your Sierra 1500 involves removing the terminals. When you reconnect the terminals, your radio presets are likely to be cleared out. In some Sierra 1500s, you may need to re-enter a security code to get your radio to work again. Check for this code in your owners manual - it will usually be either a sticker or small card in the booklet. If you can't find it, call GMC and they will give you the code for free. In many GMCs, the transmission "learns" how you drive over time and makes adjustments, so you may experience altered driving dynamics as your car re-learns your driving style after changing the battery.
Unlike a waist belt, these usually become looser as they age! Learn how to check it here2003 GMC Sierra 1500 WT 4.8L V8
Learn where your spare tire and jack are located before you need it on the side of the road2003 GMC Sierra 1500 WT 4.8L V8
If your blinker doesn't blink, or blinks rapidly, you likely have a burnt out bulb2003 GMC Sierra 1500 WT 4.8L V8
Avoid tickets and accidents with both working headlights! New bulbs are much brighter too2003 GMC Sierra 1500 WT 4.8L V8
Sure you can take it in for a $19 lube, but are you OK with a stripped oil pan and cheap parts in return?2003 GMC Sierra 1500 WT 4.8L V8
The burnt out tail light: classic reason for a cop to pull you over - change yours now2003 GMC Sierra 1500 WT 4.8L V8