Question about 2007 Jeep Commander Rocky Mountain

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2006 Commander won't shift

This has been an intermittant problem. Upon startup the message service parking assist is displayed. When put in gear all gear selections are highlighted as if in P R N D at the same time. On road transmission will not shift out of second (3,000 rpm @ 35mph or so). If I restart it will go back to working normally with the check engine warning light on. Is this "limp in mode?" What could be the issue? I still have some warranty but will be out soon so please help if you can.

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  • JerryF8 Nov 22, 2008

    I read somewhere else that this could be the shifter module. Someone else was having the same exact problem and the tech supplied that answer. Can anyone expand upon this or offer another solution?

  • cccb2006 Jan 07, 2009

    2006 Commander, trying without success to start jeep, the message service parking assist is displayed and 4 wd, check engine etc. displays.

    Commander will not start.

  • JerryF8 Sep 09, 2009

    Follow up, the electronic shift module (ESM) had to be replaced. Jeep Commanders are just huge repair costs waiting to happen. I traded mine off and anyone that owns one should too.

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  • 137 Answers

Yes shifter software is the problem.. depending on the hardware version you may just need a software update ... as for the no start always try to disconnect the battery and reconnect it before spending money once its out of warranty.. you would be amazed how much that can fix buy doing that

Posted on Feb 13, 2009

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1 Answer

HOW DO YOU TURN OFF THE REAR PARK AID?


Page 88 of your owners manual....

Reverse Sensing System (Park assist) (if equipped)
This feature sounds a warning tone to warn the driver of obstacles near
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1. Select this function from the
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PRNDL Display
The instrument panel cluster (IPC) displays the selected gear position as determined by the powertrain control module (PCM). The IPC receives a class 2 message from the PCM indicating the gear position. The PRNDL display blanks if:
• The PCM detects a malfunction in the transmission range switch circuit.
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• The IPC detects a loss of class 2 communications with the PCM.

Could be the transmission range sensor . Testing would need to be done , hooking up a scan tool ! Doing electrical testing etc...

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How do I get rid of my "Service Park Assist" message?


{: ) The "Service Park Assist" message cannot be erased or reset until the main cause of the problem is resolved. It will just keep on coming back. Let's say one or more of the park assist sensors are faulty, you should have it repaired or replaced first before the scan tool can successfully clear the trouble codes that were present then.
The SERVICE PARK ASSIST message is a reminder that a fault has been detected by the parking assist system and it will disable this system until the problem is being addressed. A scan tool can effectively trace the cause of the fault.

Jul 11, 2011 | 2007 GMC Yukon Denali

1 Answer

My park assit is on and the sensor are not working for backing up can they have dirt in them


{: ) The PARK ASSIST OFF message will be displayed when the parking assist system is disabled due to conditions that disable or inhibit the system. The object alarm module requests the DIC display PARK ASSIST OFF when it detects one of the following conditions:
• The parking assist system is manually disabled using the driver information center (DIC). • An object is attached to the rear of the vehicle, such as a trailer, bicycle rack, trailer hitch receiver, or tow bar. • The object alarm sensors are covered by snow, mud, dirt, slush, or ice. • The vehicle bumper is damaged. • Excessive paint thickness on a replacement object alarm sensor. • The object alarm sensors are disrupted by vibrations, like those caused by a large nearby vehicle or from heavy equipment such as a jackhammer.

The SERVICE PARK ASSIST message will be displayed when the object alarm module detects a malfunction in the parking assist system and the system is disabled. It could be one of your sensors is at fault or even the module.

May 18, 2011 | 2007 GMC Yukon Denali

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The park assist service light comes on when i start the vehicle. i do not have an owners manual to reference.


{: ) The driver information center (DIC) displays SERVICE PARK ASSIST when the object alarm module detects a malfunction in the parking assist system and the system is disabled. The DIC also displays SERVICE PARK ASSIST when a loss of communication occurs with the object alarm module. Usually this is caused by faulty components or wirings. Better visit your dealer if still under warranty, for one park assist sensor only costs too much. If your bumper had been knocked off or had previous repairs outside the dealership, that's another thing.
The PARK ASSIST OFF message is displayed in the DIC when the parking assist system is disabled due to conditions that disable or inhibit the system. The object alarm module requests the DIC display PARK ASSIST OFF when it detects one of the following conditions:
• The parking assist system is manually disabled using the driver information center (DIC). • An object is attached to the rear of the vehicle, such as a trailer, bicycle rack, trailer hitch receiver, or tow bar. • The object alarm sensors are covered by snow, mud, dirt, slush, or ice. • The vehicle bumper is damaged, • Excessive paint thickness on a replacement object alarm sensor. • The object alarm sensors are disrupted by vibrations, like those caused by a large nearby vehicle or from heavy equipment such as a jackhammer.

Apr 14, 2011 | 2009 GMC Yukon

1 Answer

Park assist warning came on.


{: ) SERVICE PARK ASSIST The driver information center (DIC) displays SERVICE PARK ASSIST when the park assist module detects a malfunction in the object detection system and sends a request to the DIC for display of the message. The DIC also displays SERVICE PARK ASSIST when there is a loss of communication with the park assist module.
PARK ASSIST OFF The PARK ASSIST OFF message is displayed in the DIC when the park assist system is disabled due to conditions that disable or inhibit the system. The red LED in the rear display, as well as, the telltale in the switch will be lit, notifying the driver the PARK ASSIST system is disabled. The object alarm module requests the DIC via the serial data circuit to display PARK ASSIST OFF when it detects that one of the following conditions is true:
• The object alarm system is disabled through DIC vehicle customization feature. Refer to the Owners Manual for more information. • An object is attached to the rear of the vehicle, such as a trailer, bicycle rack, or hitch receiver. • An object is hanging out of the endgate. • The park brake is not fully released. • The system receives vibrations from a large nearby vehicle or from a heavy equipment such as a jackhammer. In the case of objects attached to the rear of the vehicle such as a trailer, hitch receiver, or a bicycle rack, or objects hanging out of the endgate, the rear parking assist (RPA) will have an Automatic Object induced disable feature where the RPA will determine if the rear object is moving with the vehicle. If the RPA detects such a condition, the park assist will be disabled. The PARK ASSIST OFF message will continue to be displayed until the trailer hitch receiver is removed and the vehicle is driven forward above 24 km/h (15 mph).

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


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

Jan 04, 2010 | 2007 Jeep Commander Rocky Mountain

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


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Jan 13, 2009 | 2007 Jeep Commander Rocky Mountain

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