Question about 2007 Jeep Commander Rocky Mountain

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How do you service park assist system on a grand cherokee?

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I got a 2007 jeep grand cherokee diesel and at times the service park assist will flash and the engine light will come on. a box forms around the gears on the display and it feels like it trannys slipping and its rough out of 1st gear. if you throw it in neutral then back to drive everything is fine again. After hours of research i found that you have to get your computer flashed. It if commom for many people and the dealership wont know what your talking about. so you have to lets them know!!!! else they have no clue

Posted on Jan 29, 2010

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If by park assist you mean parking brake, just make sure the cables are free and that they are operating the rear brakes as they should. If you have a specific problem with them then ask. Generally only problems are a frozen cable, broken lever lock or rear brakes themselves needing replacement.

Posted on Jan 05, 2010

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Posted on Jan 02, 2017

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SOURCE: my park assist warning come on while driving for no reason

You can take it to your Jeep dealer and have the service department try to flash the computer. This may fix it. If not you will need to purchase a shift control module. They are about $ 590.00. This is a very common problem on the Jeep Cherokees and Grand Cherokees. Hopefully you are under warranty still. If you ignore this problem this is what will eventually happen: You will be driving down the road and your vehicle will not want to go over 15 mph and it will shift erratically. Do not wait to correct this problem or you will regret it. Yes it is a very expensive part, but a computer in itself that the vehicle needs to function correctly.

Posted on Dec 08, 2009

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SOURCE: what does "service park assist system" mean on my 2008 jeep?

The park assist system detects objects 59 inches or less in back of your vehicle, to warn u so u don't strike the object. I'm guessing that since the service park assist system comes on in the ice and snow, the monitor is detecting something (ice and snow covering the sensor). If u clean off the snow and ice, the message should shut off.

Posted on Jan 13, 2009

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I have parking sensors on my 2006 jeep grand cherokee front and back. they do not work any more. the computer is telling me to service them. how? I do have two red lights on the displays and i can't...


When you put your jeep into reverse you will see the red lights. These will still work even when is says service parking assist system needs service. The problem is in your transmission control unit. This is a common problem in the Grand Cherokees. You will have two options here. You can take it to your Jeep dealership and ask them to flash the TCU. This may or may not work. The other option is they will have to replace the TCU. They run about $600.00. Hopefully if they flash the TCU it will work again. Good luck

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You can take it to your Jeep dealer and have the service department try to flash the computer. This may fix it. If not you will need to purchase a shift control module. They are about $ 590.00. This is a very common problem on the Jeep Cherokees and Grand Cherokees. Hopefully you are under warranty still. If you ignore this problem this is what will eventually happen: You will be driving down the road and your vehicle will not want to go over 15 mph and it will shift erratically. Do not wait to correct this problem or you will regret it. Yes it is a very expensive part, but a computer in itself that the vehicle needs to function correctly.

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2005 Jeep Grand Cherokee, parking sensor is not working. any idea on how i could repair it?


Usually caused by the system being turned off. Scroll through the menu button on the dash until u get to park assist make sure the system is on. If the car has had body work done to it possible the sensors in the bumper could have been damaged to.

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What does "service park assist system" mean on my 2008 jeep?


The park assist system detects objects 59 inches or less in back of your vehicle, to warn u so u don't strike the object. I'm guessing that since the service park assist system comes on in the ice and snow, the monitor is detecting something (ice and snow covering the sensor). If u clean off the snow and ice, the message should shut off.

Jan 13, 2009 | 2007 Jeep Commander Rocky Mountain

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