The headlamp washers may be inoperative on some 2006 GMC Envoy and Envoy XL models built before 9/01/05. The headlamp washer supply hose may be too long, causing the hose to kink.
If the washer supply hose is kinked, shorten the length of the supply hose by up to 25 mm (1 in). Then reinstall the hose and check it for kinks. If there are no kinks, check the operation of the headlamp washer system.
- Thanks to Ron Erman
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