2014 Chevrolet Silverado 1500 Extended Cab Owner Manual - Page 402

10-38 Vehicle Care shift lever out of P (Park) with normal effort. If the shift lever moves out of P (Park), contact your dealer for service. Park Brake and P (Park) Mechanism Check . Ignition Transmission Lock Check While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF in each shift lever position. . { Warning When you are doing this check, the vehicle could begin to move. You or others could be injured and property could be damaged. Make sure there is room in front of the vehicle in case it begins to roll. Be ready to apply the regular brake at once should the vehicle begin to move. Park on a fairly steep hill, with the vehicle facing downhill. Keeping your foot on the regular brake, set the parking brake. . To check the P (Park) mechanism's holding ability: With the engine running, shift to P (Park). Then release the parking brake followed by the regular brake. Contact your dealer if service is required. Wiper Blade Replacement Windshield wiper blades should be inspected for wear or cracking. See Maintenance Schedule on page 11-3. Replacement blades come in different types and are removed in different ways. For proper windshield wiper blade length and type, see Maintenance Replacement Parts on page 11-16. For automatic transmission vehicles, the ignition should turn to LOCK/OFF only when the shift lever is in P (Park). For manual transmission vehicles, the ignition should turn to LOCK/OFF only when you press the key release button. . On all vehicles, the ignition key should come out only in LOCK/OFF. Contact your dealer if service is required. To check the parking brake's holding ability: With the engine running and the transmission in N (Neutral), slowly remove foot pressure from the regular brake pedal. Do this until the vehicle is held by the parking brake only.