2012 Jeep Grand Cherokee Owner Manual - Page 594

592 MAINTAINING YOUR VEHICLE hood latching components to ensure proper function. Avoid using the wiper blades to wipe frost or ice from the When performing other underhood services, the hood windshield. Keep the blade rubber out of contact with latch, release mechanism and safety catch should be petroleum products such as engine oil, gasoline, etc. cleaned and lubricated. NOTE: Life expectancy of wiper blades varies dependThe external lock cylinders should be lubricated twice a ing on geographical area and frequency of use. Poor year, preferably in the Fall and Spring. Apply a small performance of blades may be present with chattering, amount of a high quality lubricant, such as MOPAR௡ marks, water lines or wet spots. If any of these conditions Lock Cylinder Lubricant or equivalent directly into the are present, clean the wiper blades or replace as necessary. lock cylinder. Windshield Wiper Blades Clean the rubber edges of the wiper blades and the windshield periodically with a sponge or soft cloth and a mild nonabrasive cleaner to remove accumulations of salt or road film. Operation of the wipers on dry glass for long periods may cause deterioration of the wiper blades. Always use washer fluid when using the wipers to remove salt or dirt from a dry windshield. Rear Wiper Blade Removal/Installation 1. Lift the pivot cap on the rear wiper arm upward, this will allow the rear wiper blade to be raised off of the liftgate glass.