Lockers icon blinking after towing

[Jems007]

I was just getting home from a trip towing a small RV and when I put on the brakes I felt a few shutters. Felt like the trailer brakes were jolting on and off. After that, the locker light came on and is flashing. Looks like my lockers still work and can engage and disengage, but the light keeps blinking when unlocked. Any advice before taking to dealer ?

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[Wbrook24]

Most likely a dealer visit. With this type of issue, if you have more then one dealer in your area, research them first. Dealers can be vastly different in how they treat a jeep that is modded. I know there are a few here who have experienced similar issues.

 

[ShadowsPapa]

Several threads on this - and oddly enough, it seems to be happening after towing for a number of folks. Interesting.
Get it to a dealer..........

 

[Jems007]

Several threads on this - and oddly enough, it seems to be happening after towing for a number of folks. Interesting.
Get it to a dealer..........

Papa, I couldn’t find the other thread that specifically is when someone is towing. Can you point me to which ones discuss this?

 

[ShadowsPapa]

Here's one - may try to find others later.........
https://www.jeepgladiatorforum.com/...-automatically-in-2h.31407/page-6#post-608040

 

[Renegade]

This is definitely more common when towing a trailer of some sort. It would be interesting to do a test with two vehicles towing identical trailers, 1 which is plugged into the trailer wiring, and 1 which wasn’t.

 

[ShadowsPapa]

This is definitely more common when towing a trailer of some sort. It would be interesting to do a test with two vehicles towing identical trailers, 1 which is plugged into the trailer wiring, and 1 which wasn’t.

That's what I thought I observed, but bear with me here a bit - why? Electrical? How can that be? Those systems are very isolated.
Power, "parking lights", trailer brakes (with the output coming from a brake controller), left and right turn and brake lights (I believe powered through the ABS module)
Heat? More heat in towing.......?

 

[Renegade]

That's what I thought I observed, but bear with me here a bit - why? Electrical? How can that be? Those systems are very isolated.
Power, "parking lights", trailer brakes (with the output coming from a brake controller), left and right turn and brake lights (I believe powered through the ABS module)
Heat? More heat in towing.......?

I don’t know that towing generates much more heat in the differential than having large tires. I guess it could, which could be why Jeep recommends heavier gear oil if towing. I bet most people don’t swap it out before towing. Maybe a short somewhere? I don’t know enough about CANBUS.

 

[gsxr310]

This happened to me. Dealer replaced the rear axle under warranty. Haven’t towed since.

 

[PDiddy]

This makes me nervous. I tow a travel trailer with my JTR once every few months. I have about 1500 miles towing so far with no issues. I just regeared it today. Hoping that won’t effect the warranty if this happens to me.

I didn’t know we should be running a different diff oil if we are towing. I’ll have to look into that.

 

[OMTBiker]

The issue is well known and covered in the JL forums and here, it is the locker sensor getting gear oil infiltration and shorting out the sensor. The sensor is not available separately and the entire axle needs replaced, if you regear they may or may not cover under warranty (depends on dealer) and you would have to pay to have the axle regeared again.

For anyone that regears, you need to pot the sensor to try and keep this from happening.

When I have mine regeared I am having the sensors potted. ZAutomotive has a kit that blocks the error but does not fix the problem and only hides it.

 

[Dan_Ballard_Offroad]

The issue is well known and covered in the JL forums and here, it is the locker sensor getting gear oil infiltration and shorting out the sensor. The sensor is not available separately and the entire axle needs replaced, if you regear they may or may not cover under warranty (depends on dealer) and you would have to pay to have the axle regeared again.

For anyone that regears, you need to pot the sensor to try and keep this from happening.

When I have mine regeared I am having the sensors potted. ZAutomotive has a kit that blocks the error but does not fix the problem and only hides it.

Exactly.

I have the Z Automotive fix and it has been perfect since. Plug and play.

 

[Jaxmax]

I also did the "Z" fix, works fine, all dash lights work, shows when locked or unlocked, but the sensor being out of the circuit can not prove you are locked, just that you selected it. I had a real problem with Jeep taking out my whole rear end, doing brakes, axle swaps and putting it all back together, then a member posted here his second one failed, and getting another rear changeout. Apparently, they would rather send out a whole axle instead of a small part that will still fail as no improvement yet (??). So, I paid the money got the Z kit and am happy, I can unplug the kit and take it in to be fixed when they have upgraded potted sensors, or perhaps just not worry about it. I actually for my use would have rather have had a limited slip rear, that although not as off road capable works when you need it not while you are trying to push a button......Jack

 

[JeepCares]

I was just getting home from a trip towing a small RV and when I put on the brakes I felt a few shutters. Felt like the trailer brakes were jolting on and off. After that, the locker light came on and is flashing. Looks like my lockers still work and can engage and disengage, but the light keeps blinking when unlocked. Any advice before taking to dealer ?

Sorry to hear this, Jems007. Have you visited the dealer yet for this? If so, send us a private message; we would like to discuss further.

Kate
Jeep Cares

 

[Jems007]

Sorry to hear this, Jems007. Have you visited the dealer yet for this? If so, send us a private message; we would like to discuss further.

Kate
Jeep Cares

I have an appointment tomorrow. I am going to PM you now.

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