Won't start

Theresa Cheek

Asked by Theresa Apr 22, 2012 at 12:11 PM about the 2008 Jeep Commander

Question type: Maintenance & Repair

I have a used 2008 Jeep Commander Sport and have had no issues until now. Made a short trip to grocery
store, when I got back in,,,nothing. Lights come on the dash but engine will not turn over.??

8 Answers

Theresa Cheek

My battery is new, key has new battery as well and I had no warning lights on the dash.

7 out of 7 people think this is helpful.
Dan Malloy

does it crank at all and just not start or does the starter not even turn

7 out of 7 people think this is helpful.
Theresa Cheek

It just clicks, happened with no warning

4 out of 4 people think this is helpful.
Theresa Cheek

my interior lights come on, dash lights up and still have beeping sounds from leaving key in ignition

3 out of 3 people think this is helpful.
Theresa Cheek

Turned out to need a software update that caused "inconsistent starting".

13 out of 13 people think this is helpful.

This is to all jeep commander owners and also jeep grand Cherokees made n the same year. My no start issue started a year ago after a flood which I promptly associated the starter issue with. I had everything mechanical replaced the start issue arose. I went in repeatedly which ended up with re-replacement of mechanical parts. Still no fix. So this is what I have done to fix the problem- fuses 39 and 40 of the integrated power module, drivers side forward fuse box, behind the battery has 4 total electrically actuated switches "1/2 A 190" that can be purchased at any auto parts store- REPLACE THEM. I pulled all of mine to be safe a my Commander has run ever since and started immediately each time that I have tried. My original switches were so hot that they burned my fingers. Being inquisitive I broke them apart to reveal a mechanical contact that had burnt points to the point of actual metal blow out and arc marks. In the mean time repeatedly(fast) try to start the vehicle and it should start.. This issue is like a ghost haunting your cars as the vehicle started sometimes with no repeatability or codes. also tap on those switches to reset if the switch is stuck also feel if they are hot after driving, could be a key indicator of a future problem, they should be warm but not hot. Good luck and I hope this helps.


another pic on the other side of the micro contact


This is an issue that many people are dealing with and one that Jeep is not admitting to. A class action lawsuit is also in process to replace the integrated power module with something more robust. I hope this helps.

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