2011 Chevrolet Impala Owner's Manual - Page 337

Vehicle Care 5. Use an adequate clamping device designed for towing to ensure that the front wheels are locked into the straight position. 6. Secure the vehicle to the dolly following the manufacturer's instructions. 7. Release the parking brake only after the vehicle being towed is firmly attached to the towing vehicle. 8. Turn the ignition to LOCK/OFF and remove the key. 10-81 Appearance Care Exterior Care If dirt and/or contaminants build up in the glass seals, use a cloth and water to clean the glass seals. Silicone grease on weatherstrips will make them last longer, seal better, and not stick or squeak. Apply silicone grease with a clean cloth. During very cold, damp weather frequent application may be required. See Recommended Fluids and Lubricants on page 11‑6. Notice: Certain cleaners contain chemicals that can damage the emblems or nameplates on the vehicle. Check the cleaning product label. If it states that it should not be used on plastic parts, do not use it on the vehicle or damage may occur and it would not be covered by the warranty. Do not wash the vehicle in direct sunlight. Use a car washing soap. Do not use cleaning agents that are petroleum based or that contain acid or abrasives, as they can damage the paint, metal or plastic on the vehicle. Washing the Vehicle The best way to preserve the vehicle's finish is to keep it clean by washing it often.