2011 Buick Enclave Owner's Manual - Page 318

10-26 Vehicle Care WARNING (Continued) 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. . 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. . Contact your dealer if service is required. Wiper Blade Replacement Windshield wiper blades should be inspected for wear or cracking. See Scheduled Maintenance on page 11‑2 for more information. Replacement blades come in different types and are removed in different ways. To replace the wiper blade assembly: 1. Pull the windshield wiper arm away from the windshield. The ignition should turn to LOCK/OFF only when the shift lever is in P (Park). The ignition key should come out only in LOCK/OFF. . Contact your dealer if service is required. Park Brake and P (Park) Mechanism Check { WARNING When you are doing this check, the vehicle could begin to move. You or others could be injured and property could be damaged. (Continued) . 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. 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. 2. Press the button in the middle of the wiper arm connector and pull the wiper blade away from the arm connector.