2015 Jeep Cherokee Owner Manual - Page 644

642 MAINTAINING YOUR VEHICLE Operation of the wipers on dry glass for long periods • Wear Or Uneven Edges may cause deterioration of the wiper blades. Always use • Foreign Material washer fluid when using the wipers to remove salt or dirt • Hardening Or Cracking from a dry windshield. Avoid using the wiper blades to remove frost or ice from • Deformation Or Fatigue the windshield. Keep the blade rubber out of contact with If a wiper blade or wiper arm is damaged, replace the petroleum products such as engine oil, gasoline, etc. affected wiper arm or blade with a new unit. Do not NOTE: Life expectancy of wiper blades varies depending attempt to repair a wiper arm or blade that is damaged. on geographical area and frequency of use. Poor perforFront Wiper Blade Removal/Installation mance of blades may be present with chattering, marks, water lines or wet spots. If any of these conditions are CAUTION! present, clean the wiper blades or replace as necessary. The wiper blades and wiper arms should be inspected Do not allow the wiper arm to spring back against periodically, not just when wiper performance problems the glass without the wiper blade in place or the glass are experienced. This inspection should include the fol- may be damaged. lowing points: