2015 Jeep Grand Cherokee Owner Manual SRT - Page 549

MAINTAINING YOUR VEHICLE 547 The external lock cylinders should be lubricated twice a year, preferably in the Fall and Spring. Apply a small amount of a high quality lubricant, such as MOPAR® Lock Cylinder Lubricant directly into the lock cylinder. Windshield Wiper Blades Clean the rubber edges of the wiper blades and the The wiper blades and wiper arms should be inspected windshield periodically with a sponge or soft cloth and a periodically, not just when wiper performance problems mild nonabrasive cleaner. This will remove accumulaare experienced. This inspection should include the foltions of salt or road film. lowing points: Operation of the wipers on dry glass for long periods may cause deterioration of the wiper blades. Always use • Wear Or Uneven Edges washer fluid when using the wipers to remove salt or dirt • Foreign Material from a dry windshield. • Hardening Or Cracking Avoid using the wiper blades to remove frost or ice from the windshield. Keep the blade rubber out of contact with • Deformation Or Fatigue petroleum products such as engine oil, gasoline, etc. If a wiper blade or wiper arm is damaged, replace the affected wiper arm or blade with a new unit. Do not attempt to repair a wiper arm or blade that is damaged. NOTE: Life expectancy of wiper blades varies depending on geographical area and frequency of use. Poor performance of blades may be present with chattering, marks, water lines or wet spots. If any of these conditions are present, clean the wiper blades or replace as necessary. 7