Engine won't start - immobilizer?

[JamesM]

I have a 2020 Rubicon, manual trans. For the third time in about as many months, I've gone out to the garage, pressed the start button and just gotten a click. Nothing otherwise different this time than any of the hundreds of other times Ive started it. Two the times before, I had to jump start it. One of the other times, I just touched the starter button with my key fob -- which makes me think the problem is the immobilizer. But, that does not work every time and I know the fob has a new battery. Any ideas? Thanks!

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[Mr._Bill]

I have a 2020 Rubicon, manual trans. For the third time in about as many months, I've gone out to the garage, pressed the start button and just gotten a click. Nothing otherwise different this time than any of the hundreds of other times Ive started it. Two the times before, I had to jump start it. One of the other times, I just touched the starter button with my key fob -- which makes me think the problem is the immobilizer. But, that does not work every time and I know the fob has a new battery. Any ideas? Thanks!

Are you still running on the original batteries? If so, it's time to replace both of them.

 

[ShadowsPapa]

nd I know the fob has a new battery.

Has the FOB battery been tested? I've found dead ones directly from a store, even from Amazon.
Hey, it's new, it's got to be good............ until I do a test on it and it's not.

But like suggested above - check your battery voltage on the TRUCK batteries.....
The fact you said you had to jump start points to the batteries in the truck.
It's a 2020 - bet they are bad. That's at least 3 years which is about typical life span on batteries these days.

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