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Old 12-30-2022, 11:21 PM   #1
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2022 Jeep Grand Cherokee towing issues

Hello. Recently purchased 2022 Jeep Grand Cherokee for towing behind my class A motorhome. Tried to flat tow it last weekend and had the following issue. Followed the procedure described in the manual to switch it to N, attached to the motorhome (tried to push/pull the car to make sure it is in Neutral), drove it for ~500 miles. When I went in the car there was a warning message showing the tire pressure system was not working. I disconnected the car from the motorhome, shifted out of Neutral and started driving it. The tire pressure warning disappeared in a couple of min and started showing the tire pressure values.
Then I towed the car for ~200 miles - no issues.
Towed it again for ~500 miles and had the same issue - tire pressure system did not work, plus blind spot detection system did not work as well. Both issues went away in 2-3 min after driving the car.
Also both times there was a strange smell, like burning rubber, but I was not able to find the source of the smell.
Anyone had something similar?
Thx.
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Old 12-31-2022, 12:09 AM   #2
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Not sure about the tpms issue but the burning smell is very common, theres a long thread on here, most agree it is road dust buildup on the exhaust while towing that burns off when motor is started.

Every time I tow my Jeep wrangler i smell it just as you describe, so far not an issue.
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Old 12-31-2022, 06:04 AM   #3
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Originally Posted by Jon_C View Post
Not sure about the tpms issue but the burning smell is very common, theres a long thread on here, most agree it is road dust buildup on the exhaust while towing that burns off when motor is started.

Every time I tow my Jeep wrangler i smell it just as you describe, so far not an issue.
I smelled it right after I finished towing, so before the motor was started.
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Old 12-31-2022, 06:12 AM   #4
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I’ve been towing Jeeps since 2003.
1. The smell is the diesel exhaust it will go away.
2. The TPMS on my 2022 Wrangler gave the alert after towing too, it will clear up and go away after driving it a few miles. I don’t know why it does that but after pulling mine 12,000 miles this yr. It’s has no harmful affect. You will get an alert in the Jeep app too. Eventually my app alert went away too
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Old 12-31-2022, 06:24 AM   #5
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I agree with others about the smell. It happens with our '21 GC about 80% of the time but I have not noticed any abnormal tire wear.


What are your Power and Headlight Delay timer settings? The TPMS and other features may be related to the delay timer. I copied this from another thread on flat towing:


Thanks to a thread on the North American Grand Cherokee Association (NAGC) forum...
https://www.nagca.com/threads/steeri...-towing.72560/

"Once the transfer case is re-engaged and in gear, and the vehicle is turned off, power is still showing on the transmission lights by the shifter for a time. This tells the EPS to not engage steering assist (EPS thinks the transfer case is still in neutral).

If on the "radio" head unit, under key off options, key off power delay and headlights off delay are enabled, add that time to key off (unless you open door to kill the delay time). In addition another 15 to 30 seconds of key off still required before lights on transmission display are off.

By setting the head unit key off options, key off power delay and headlight off power delay, to zero seconds, then 15 to 30 seconds of key off is enough time for the lights on the trans display to go out. At that point restarting the vehicle, EPS power steering works correctly.

So it is a timing issue of how long the Jeep must have no power before EPS steering assist works again.

Multiple restarts do not work to reset the EPS unless the total time off is met first (on one event).

When you re-engage the transfer case into gear, you must turn off the Jeep until the lights by the transfer case go entirely out. At that time the steering will return to normal..."


Tried this and it works every time. Short version recap:
- under Settings, Key Off Options: set both the radio and headlight delay times to zero
- after re-engaging the transfer case, turn the key OFF until the lights next to the shifter go completely dark. This means both the Yellow gear indicator light AND the Light Blue shift position background light.
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Old 12-31-2022, 10:03 PM   #6
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The error messages are common and if you check out the GC-L thread youíll see the same reports. Id also recommend looking at the procedure the L owners use to disable certain auto braking aids that have causes problems.

Iíve towed my GC-L around 10,000 miles and it does great. Every time I disconnect it takes driving around the block to clear errors and re-engage driving aids.
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Old 01-10-2023, 02:36 PM   #7
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Thanks everyone for your answers. Strange behavior to drive a couple of miles to clear the error messages. Why would not Jeep fix it and disable "problem" systems as a part of Neutral button...
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Old 01-10-2023, 02:37 PM   #8
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Originally Posted by 04266832 View Post
The error messages are common and if you check out the GC-L thread youíll see the same reports. Id also recommend looking at the procedure the L owners use to disable certain auto braking aids that have causes problems.

Iíve towed my GC-L around 10,000 miles and it does great. Every time I disconnect it takes driving around the block to clear errors and re-engage driving aids.
Do you mind sharing the link to "the procedure the L owners use to disable certain auto braking aids that have causes problems"? thx
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