What does "Service 4WD System" light indicate in terms of issues and cost?
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2006 Jeep Grand Cherokee Question: 4WD SERVICE LIGHT
Answer #1Bret Bodas from RepairPal Test Shop, January 15, 2010, 17:23Master
A fault has been detected by the computer that monitors the 4WD system, and your looking at normally 1 hour of diagnosis time to figure out what is wrong. When the diagnosis is completed, only then can an estimate for the repair be given.