Question about 2005 Jeep Grand Cherokee

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Service 4-wheel drive light is on might this just be that the system needs to be updates?

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Usually this is built into the system at certain miles on the vehicle. I would have a reliable auto center check it out.

Posted on Feb 02, 2010

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The service Four wheel drive light is to alert the operator the system is not being read properly by the ECU.

If the ECU loses contact with or position of the Transfer case actuator motor the service light will come on. Same thing goes for the front diff actuator.

So it may be a bad switch, sensor, or an actual problem in the 4WD linkage. This is not a Oil Change light that you can ignore a few extra weeks - it indicates a problem that should be taken care of ASAP to avoid costlier problems down the road.
Thanks for using FixYa - a FixYa rating is appreciated!!

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