1998 GMC Suburban Owner's Manual - Page 328

Battery Every new vehicle has a Delco Freedom' battery. You never have to add water to one of these. When it's time for a new battery, we recommend a Delco Freedom battery. Get one that has the replacement number shown on the original battery's label. Contact your dealer to learn how to prepare your vehicle for longer storage periods. Also, for your audio system, see"Theft-Deterrent Feature" in the Index. Bulb Replacement Before you replace any bulbs, be sure that all the lamps are off and the engine isn't running. For the proper bulb type, see "Replaceme.nt Bulbs" in the Index. Vehicle Storage If you're not going to drive your vehicle for 25 days or more, remove the black, negative (-) cable from the battery. This will help keep your battery from running down. Halogen Bulbs I A CAUTT 3N: r - - Batteries have acid that can burn that canexplode. You can be badly aren't careful. See "Jump Starting" for tips on working around battery a getting hurt. you and gas hurt you if in the Index without Halogen bulbs have pressurized gas inside and can burstif you drop or scratch the bulb. or You others could be injured. sure to read and Be follow the instructions on the bulb package. 6-36