1995 GMC Sonoma Owner's Manual - Page 325

Starter Switch 1 . Before you start, be sure you have enough room around the vehicle. 2. Firmly apply both the parking brake (see "Parking Brake'? i n the 1nde.x 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. If The starter shouldwork only in PARK (P) or NEUTRAL (N). the starter works in any other position, your vehicle needs service. On manual transmission vehicles, put the shift lever in 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 a l l the way down, your vehicle needs service. Steering Column Lock While parked, and with the parking brake set, try to turn the key to LOCK in each shift lever position. With an automatic transmission, the key should turn to LOCK only when the shift lever is in PARK (P). With a manual transmission, the key should turn to LOCK only when the shift lever is in REVERSE (Rj. On vehicles with a key release button, try to turn the key to LOCK without pressing the button. The key should turn to LOCK only with the key button depressed. On all vehicles. the key should come out only in LOCK. 7-37