Jeep Grand Cherokee Problem Report
Jeep Grand Cherokee Software Updates Address Erroneous Illumination of Warning Lights
Software updates are available to solve various Check Engine Light and warning light related issues.
abs lights on and cruise not working but brakes seem to have no problem - Visitor
all brake warning lights are on but no code set.....cruise not working at onset of this problem - Visitor
ABS service 4wd light comes on ...car does not have any mechanical issue - Visitor
The warning is about the front differential- - jwernatl
ABS warning light comes on,goes off after sitting over night,comes back on with in a few miles of travel.Took to garage,ran tests, could not pin point problem,the two options, they gave me, is going to run into a lot of money,not sure that that will fix problem?,, - drmom
light apopears for no reason, not sure how to apply software updates - apr119
Warning on rear lights when all lights are working; Warning on low radiator fuild and fluid is...
Software updates are available to address erroneous illumination of the "Service 4WD System" warning light and other issues (e.g. shifting, performance).
Updated software will solve an intermittent problem where engine speed is limited to 3,900 RPM...
Problem seems to cycle - driving along, suddenly the check engine light comes on along with the electronic throttle control warning light, as the temp gauge drops to zero - which triggers the Check...
where can you get an update software for the PCM and is it free