Remote start not working, Beeps once, no start

[Willys_Wonka]

Yup, problem solved. Took it out to the dealer. When i left my house after charging batteries my odometer showed 999999 miles instead of 30000 it had. after about 2 miles it went back to normal. Got to the dealer and it started with the remote. Tech got in it and it showed 999999 miles again. Both batteries tested bad even though it would start inside. Tech was sure the aux batt was bad and said we could try slow charging the main batt and see what happens. I decided to just change them both. I'm able to hang out in the garage if i want so i did. To change the aux batt you have to pull back the RF inner wheel well, 3 bolts to take out for the aux batt case to drop down to get to it.

I’m having the same issue, see video. The aux battery is probably failing and drawing the main down, as well. Dealer tested main, it’s at 60%, so that might at least be salvaged (not a cheap battery).

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[jludave]

Dealer tested main, it’s at 60%, so that might at least be salvaged (not a cheap battery).

Change the main.

You can find aftermarket batteries at many locations for much less than the dealer is going to charge you for one. You should be able to find one for no more than $250 if that.

Also look into bypassing the aux battery and going with an H7 main.

https://www.jlwranglerforums.com/forum/threads/jumperless-aux-battery-bypass.95945/

 

[Altitude2020]

Well this is happening to me. I was told by the dealer a door was open. I know they where shut. I already had a door sensor replaced. So I'm stuck because the dealer basically said it was fixed. We'll its not, they know what door it is. Looks like I'm going to bring it back.

 

[Jan2nellie]

on my JL the remote start doesn’t work if the doors are unlocked

so a person should lock the doors first then try it. mine make a noise like it want to start then does not

 

[UncleJimmy]

You need to ask what are the program parameters for the remote start and then test each one. I have seen similar lists for start/stop etc. But I have had a bad plunger/hood sensor that reeked havoc until I figured it out. You can try switching the leads on the two sensors to confirm or rule them out.

 

[Marley Rubicon]

I searched the forum and could not find an answer, did anyone else have this issue. When i try to remote start my 2018 JLU it will flash the lights and beep once and not start. Starts fine with push button start. I did disconnect the main battery to check voltage on aux battery, it was 11.7 . Also checked to see if it would start the jeep from inside on just the aux battery, it would not. Thinking aux battery issue may be the problem. Any thoughts or suggestions appreciated. Just went out of warranty on 1/31/21

My 2017 Rubicon is the same, beep 1 but won't start. BUT....Every time (many time) I wen't wheeling hard...it started working very good. When I came home it working for about a week then stopped. Have to go wheeling to fix IT. Lol

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