Question about 2007 Pontiac Montana

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Ultrasonic rear parking assist URPA doesn't work, what should I look for?

Posted by Anonymous on

  • Mark Rutherford
    Mark Rutherford Aug 22, 2016

    park on flat ground, block a wheel front and back with bricks so the car will not roll, turn key on but do not start motor, set parking brake,put car in reverse, go to each sensor in the back bumper and listen for a clicking sount, if it clicks it is working move to the next..the ones that don't click are bad and need to be replaced, order from e bay, the dealer gets $150 each and e bay is under $15 each in most cases.

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  • Pontiac Master
  • 34,089 Answers

  • Dirty or defective sensors
  • Control board defects
  • Open fuse

Posted on Aug 24, 2016

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 98 Answers

SOURCE: My 1999 pontiac montana rear sliding power door will not work

I went to bulldogsecurity.com and looked up the wiring diagram for this vehcle. However, prior to checking this part, I would check to see if you have a blown fuse. It doesn't hurt and only takes a few minutes. There should be a fuse for that either somewhere on the side of the dash or near the brake pedal area. If not it may be under the hood, but it should be inside the vehicle. You may have multiple fuse boxes. If it has (2) sliding doors it will have a wire for the auto doors in each kick panel (under the plastic trim/molding) when you open the door and look down you will see all of the trim/molding it should snap out or may be held in place with a screw or (2). Once you remove that you should see the wires. It says for the left side it is either light blue or black and the right side is definitely light blue. Trace this wire until you find out where it ends (the motor or switch to control the auto doors) Then test the switch/motor to see if it is bad.

Posted on Mar 02, 2009

alicantecoli
  • 22114 Answers

SOURCE: power windows front and rear dont work

inside the door panel for the module ,speedo lights and fuel gauge is another problem

Posted on Mar 30, 2009

  • 625 Answers

SOURCE: how to replace rear wiper blade in pontiac transport montana 1998

When you purchase a wiper blade, the step-by-step instructions are included in the package. It will be a matter of carefully pulling up and out, then reverse the steps to install.

Posted on Jun 08, 2009

  • 105 Answers

SOURCE: 2002 Pontiac Montana, No Heat, I put the temp control on

the cabel from the heat dial to the heater box behind the dash could be snaped or jamed thus not opperating the lever which operates the flap which open and closes the heat box next to the matrix. or if your coolant is brown in colour it could be your matrix is clogged with sedament and needs flushing out. or it could be your water pump not pumping coolant round your engine or it could be a knackerd thermostat i hope these will help you id start with the easyest first thermostat

Posted on Dec 17, 2009

1ATony
  • 159 Answers

SOURCE: How do I install a rear wiper motor on 2003 Pontiac Montana?

Here's a great video that will show you how to install the rear wiper motor on a 97-05 Montana or Venture">

Posted on Mar 02, 2011

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1 Answer

2011 MKX Rear camera works, but parking assist quit showing up on the screen. Dealer says the camera needs to be replaced. Is this correct?


2011 MKX Rear camera works but parking assist quit showing up on the...

get your car fix right now

Mar 17, 2016 | 2011 Lincoln MKX

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Parking sensor fault


in bedded in the back bumper bar should be two ultrasonic components they might be out of alignment. get them checked by your local dealer.

Jan 27, 2014 | Cars & Trucks

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What is this for?


Button on theright apoears to be a thaction cintrol or anti skid conttrol.Button on the left could have something to do with parking brake release.

Mar 26, 2013 | Cars & Trucks

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Jan 21, 2013 | 2006 Jeep Grand Cherokee

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My rear parking assist sensor was tapped and now doesn't work


if it was hit and the sensor doesn't look bad look behind the bumper for damaged wires

Aug 12, 2012 | Chevrolet Uplander LT Cars & Trucks

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GMC 07 Serria backup sensor will not work. I had a new bumper installed. At first it beeper all the time. Now it will not come on. The DIC shows park assist off.


#PIT4878: Service Park Assist Message / LEDs Stay On Or Inop - keywords B0968 inoperative lamp led light lit module reverse urpa - (Jun 12, 2009) 999999995.gif Subject: Service Park Assist Message/ LED's Stay On or Inop Models: 2007-2009 Chevrolet Silverado 2007-2009 GMC Sierra With RPO UD7

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern: Some customers my comment of a Service Park Assist Message on the DIC and/or the LED indicators at the right rear pillar staying on or inoperative. This concern could be caused by the wiring harness to the LED indicators being pinched under a ground eyelet at the right rear pillar, as shown below.

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other issues could be the problem such as poor connections at each sensor or damaged sensors. to clear URPA codes,place ignition in run,(engine OFF),shift into reverse and turn key OFF.place shift lever into park and retest operation of URPA. if still inop URPA code(s) need to be retrieved before further diagnosis can be accurately done.

Sep 15, 2011 | 2007 GMC Sierra 1500

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).

Feb 07, 2011 | 2007 GMC Yukon Denali

2 Answers

2001 chevy venture Rear Parking Assist not working


Normally it will not work when the brakes are worn out so an inspection is needed to determine this is your problem

Jun 19, 2010 | 2001 Chevrolet Venture

2 Answers

The led panel over the rearview mirror says that the Parking Assist is disabled but I cannot enable it following the instructions in the owners manual and it doesn't reset when the ignition is turned off....


I had this situation too, exactly. Everybody told me it was probably a rear bumper sensor gone bad, but at least in my case, no such luck. It was the Park Assist Module, basically the control computer for the whole system. A new one fixed it, but was about $300.

Jun 16, 2009 | Lincoln Town Car Cars & Trucks

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