How do you change battery 2006 dts cadillac?

To change the battery in a 2006 Cadillac DTS, first, ensure the vehicle is turned off and parked on a flat surface. Open the hood and locate the battery; disconnect the negative terminal (usually marked with a minus sign) first to prevent any electrical short, followed by the positive terminal. Remove any securing brackets or covers, then lift out the old battery and replace it with the new one, connecting the positive terminal first and then the negative terminal. Finally, secure the battery in place and close the hood.