1995 GMC Yukon Owner's Manual - Page 461

At Least Once a Year Key Lock Cylinders Lubricate the key lock cylinders with the lubricant specified in Part D. Body Lubrication Lubricate all fuel door, body hood and body door hinges, rear compartment hinges, tailgate and tailgate handle pivot points, tailgate mounted spare tire carrier pivot points, latches, locks, and folding seat hardware. Part D tells YOLI what to use. More frequent lubrication may be required when exposed to a corrosive environment. Starter Switch A CAUTION: When you are doing this check, the vehicle could move suddenly. If it does, you or others could be injured. Follow the steps below. 1 . Before you start, be sure you have enough room around the vehicle. I t should be parked on a level surface. 2. Firmly apply both the parking brake (see "Parking Brake" in the Index if necessary) and the regular brake. NOTE: Do not use the accelerator pedal, and be ready to turn off the engine immediately if it starts. 3. On automatic transmission vehicles, try to start the engine i n each gear. The starter should work only in PARK ( P ) or NEUTRAL (N). If the starter works i n any other position, your vehicle needs service. On manual transmission vehicles, put the shift lever i n NEUTRAL (N), push the clutch down halfway and try to start the engine. The starter should work only when the clutch is pushed down all the way to the floor. If the starter works when the clutch isn't pushed all the way down, your vehicle needs service. 7-93