2006 Jeep Grand Cherokee Overland: the dash warning lights Aug 28, 2011I have a 2006 Jeep Grand Cherokee Overland 5.7. When first starting the vehicle all of the dash warning lights go on as they do when the key is first turned to the 'on' position. At the same time the electrical components slow way down as if the system is under load or a short is present. The vehicle runs fine and only acts up when first jeep dash lights - Diagnostic World Dashboard symbols differ from vehicle to vehicle & our guides will tell you exactly what tools you need to reset the indicator light or warning light on dash. Turn off those warning lamps for good! If you need to reset a dashboard warning light or diagnose an engine diagnostic fault trouble code on your Jeep we would recommend the Autophix OM123 .