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The video above shows you how to replace the battery in your 2004 Cadillac DeVille. We recommend changing the battery in Cadillacs 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 DeVille that you need to replace.
Replacing the battery in your DeVille involves removing the terminals. When you reconnect the terminals, your radio presets are likely to be cleared out. In some DeVilles, 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 Cadillac and they will give you the code for free. In many Cadillacs, 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.
Transmissions that leak fluid usually have never been flushed and the seal is finally leaking. The right stop leak product can cure a lot2004 Cadillac DeVille DTS 4.6L V8
If your blinker doesn't blink, or blinks rapidly, you likely have a burnt out bulb2004 Cadillac DeVille DTS 4.6L V8
Carmakers are hiding interior fuse boxes all over the place these days - see how to check your interior fuses here!2004 Cadillac DeVille DTS 4.6L V8
The best way to fix leaking hoses is to replace them, but if you don't have time, a stop leak product might work for you2004 Cadillac DeVille DTS 4.6L V8
A check engine light can be cleared with a simple fix or it could be a major problem - find out now!2004 Cadillac DeVille DTS 4.6L V8
Minor transmission fluid leaks can often be fixed with the right sealant - see how to do this2004 Cadillac DeVille DTS 4.6L V8