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Hummer h-2 shift lock wont release out of park...brake lites work..

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  • Hummer Master
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Park Problem – Emergency procedure
and repair procedure
This is a more serious problem as the truck is totally immobilized. You will have to do something if you want to get to where you are going. Fortunately, the solution is very easy. Note that The park problem can occur at the same time as the key problem so you may have to do both to get out of a bind .


The repair of the shifter as described below will fix both problems.
Here is the repair procedure
Open the center console glove box and using the Phillips screw driver, remove the 4 screws that hold the center console "glove box" in place. The box is the tub right under the flip up door. Remove the tub then stick you hand into the hole toward the shifter. While jiggling the shifter feel where the bottom of the shifter goes. Somewhere near the bottom, you will feel a round mushroom shaped thing, with the round part facing the PASSENGER SIDE. If you press on this, the shifter can now be shifted out of park using the regular method. You need to hold the button down when you want to shift out of park. The lock is only for park so all other gears are ok from this point on. Remember- every time you go to park position, the shifter will lock and you need to access the “button” each time to get out of park.


What is the cause of the problem?

One frequent cause is a broken wire that goes to the shifter (the break is located in the center console). These wires control both the key removal and the parking lock. If you have either of these problems then have the cable checked or you can fix it your self as indicated below:

Shifter stuck or key stuck repair
Put the parking brake on
Make sure the engine is off
Put the shifter into 1 (farthest back position)
Remove the shifter handle. To do this you need to loosen the allan screw (it is actually a torx screw but an allan wrench will work fine) There is a screw on the front of the shifter that needs to be loosened, Pop the shifter console off the center console. There are 4 very hard to release metal clips that hold the shifter cover on. To release, you need to pull straight up on the shifter cover. Beware, you might break the plastic around the clips so be careful. The cover does come off perhaps with a lot of effort. If you are worried about breaking it go to a dealer for the repair.
Once the cover is off you will see a cable and connector near a mushroom shaped button. This button is the one you pressed to release the shifter from park. Either the connector is off or the wires to the connector are broken due to the flex back and forth that occurs during movement of the shift lever. Find which wire is broken and fix it. It is preferable to use a small gauge, highly flexible wire to extend the harness to connector cable length. It is also preferable to use **** splices rather then solder joints.

Test it and then put everything back together.

Posted on Jul 15, 2009

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Posted on Jan 02, 2017

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Stuck in park will not shift


Automatic Transmission Shift Lock Control System
The automatic transmission shift lock control is a safety device that prevents an inadvertent shift out of PARK when the ignition is ON. The driver must press the brake pedal before moving the shift lever out of the PARK position. The system consists of the following components:
?€¢
The automatic transmission shift lock control solenoid.


?€¢
The automatic transmission shift lock control switch.


?€¢
The park/neutral position switch.

With the ignition in the ON position, battery positive voltage is supplied to the park/neutral position switch. When the transmission is in the PARK position the contacts in the park/neutral position switch are closed. This allows current to flow through the switch to the automatic transmission shift lock control switch. The circuit continues through the normally-closed switch to the automatic transmission shift lock control solenoid. The automatic transmission shift lock control solenoid is permanently grounded. This energizes the automatic transmission shift lock control solenoid, locking the shift linkage in the PARK position. When the driver presses the brake pedal the contacts in the automatic transmission shift lock control switch open, causing the automatic transmission shift lock control solenoid to release. This allows the shift lever to move from the PARK position.
Park Lock Solenoid
The park lock solenoid is a safety device that prevents an inadvertent shift out of PARK when the key is in the OFF position. The key must be in the RUN position to release the park lock solenoid. The system consists of the park lock solenoid. With the ignition in the ON position, voltage is supplied to the park lock solenoid. The park lock solenoid energizes through a permanent ground unlocking the shift lever. With the ignition in the OFF or ACCY position the park lock solenoid de-energizes and locks the shift lever in the park position.
Shift Lever Does Not Move with Brake Pedal Depressed
DEFINITION: Transmission shift lever will not move out of the PARK position with the ignition ON and the brake pedal pressed.

1

Did you perform the Symptoms - Automatic Transmission Shift Lock Control tests and all the necessary inspection?
Go to Step 2
Go to Symptoms - Automatic Transmission Shift Lock Control

2

  1. Turn ON the ignition, with the engine OFF.
  2. Press and hold the brake pedal.
  3. Attempt to move the shift lever out of the PARK position.
Does the shift lever move out of the PARK position?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
NO Go to Step 3

3

  1. Turn OFF the ignition.
  2. Disconnect the automatic transmission shift lock control switch.
  3. Turn ON the ignition, with the engine OFF.
  4. Press and hold the brake pedal.
  5. Attempt to move the transmission shift lever out of the PARK position.
Does the transmission shift lever move out of the PARK position?
Go to Step 6
Go to Step 4

4

  1. Turn OFF the ignition.
  2. Disconnect the automatic transmission shift lock control solenoid.
  3. Turn ON the ignition, with the engine OFF
  4. Press and hold the brake pedal.
  5. Attempt to move the transmission shift lever out of the PARK position.
Does the transmission shift lever move out of the PARK position?
Go to Step 7
Go to Step 5
Inspect for poor connections at the harness connector of the automatic transmission shift lock control solenoid. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 10
Go to Step 9

6

Inspect for poor connections at the harness connector of the automatic transmission shift lock control switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 10
Go to Step 8

7

Repair the short to battery positive voltage in the A/T shift lock control solenoid supply voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 10
--

8

Replace the automatic transmission shift lock control switch. Refer to Stop Lamp Switch Replacement in Lighting Systems.
Did you complete the replacement?

Oct 13, 2015 | 2006 Hummer H2

2 Answers

What causes my gear shift to lock in park


Manufacturers have designed the shifters to lock in the Park position. This is to prevent children from accidentally moving the shifter out of Park if they are playing behind the wheel (as they should not be of course). The ignition must be in the ON position, with the brake pedal pressed, to release the shifter from PARK. If there is a malfunction, most cars have a bypass release button hidden near the shifter. Check your owners manual for details if needed.

Apr 18, 2015 | Cars & Trucks

1 Answer

Hummer H3. Wont shift out of park, key is stuck in ignition, will not turn on accessories or crank, break lights stay on. Removed interior carpet to apply herculiner. Any ideas as to what the problem


Many cars, I presume the Hummer also will not let you shift out of Park unless the Brake pedal is depressed. Most do this by an electronic interlock with the brake light switch. Yours is broke. Either the brake light switch has moved out of position or is defective, or your brake pedal is not retracting to the full off position.

Mar 30, 2014 | 2007 Hummer H3X

1 Answer

Hummer H3 airbag light wont go off


Airbag light on in a Hummer H3 Dashboard???Here is the fix...
Start the engine of your car, set the parking brake, hold the regular brake pedal down with your right foot. Push down the parking brakepedal to its fully-applied position with your left foot. Now while you are still holding the regular brake pedal down. Quickly release the parking brake, Pull the bottom edge of the lever, located above the parking brake pedal, with the parking brake
symbol, directly rearward to release the parking brake. Make sure pedal snaps hard all the way back releasing the parking brake... If this doesn't work the first try, try it 3-5 times and it shall work... The airbag light will go off...


NOTE: The parking brake pedal is located to the left of the regular brake pedal, near the driver's door.
&

The parking brake lever is located above the parking brake pedal, with the parking brake symbol.

May 28, 2012 | 2006 Hummer H3

1 Answer

97 mazda 626 wont shift from park. release button on side of shifter wont push in. removed knob, plastic rod in center wont move


The 1st thing you need to do is check the brake lights, if they are not wiorking the park lock solenoid doesn't get power and the park lock remains engaged.

Apr 17, 2012 | 1997 Mazda 626

1 Answer

I have a 2005 Nissan Altima will not shift out of park.I have replaced the shifter assemble,brake lights do work,Need help


If the floor shift lever wont move out of park, there foot brake lock that prevents it from moving until you depress the brake pedal and pull it out of park. I think the release is vacuum operated so try depressing the brake pedal a few time while trying to release. TerBo

Jul 29, 2011 | 2005 Nissan Altima

1 Answer

Wont come out of park


The shift lock solenoid is at fault
It is located by the shift cable inside the vehicle
It is there to work only when you depress the brake pedal.

Jun 30, 2010 | 2004 Hummer H2

1 Answer

Cant get my 2008 hummer h2 to shift out of park


1 of 2 things are going on, either the brake light switch is malfunctioning or the solenoid in the shifter assembly. when you apply the brake, you should hear a light click in the centre console allowing the shifter to release. if this is not heard, inspect the fuse block for burned fuses(unlikely but possible). next make sure your brake lights are working. if they are working it is perhaps the solenoid in the console itself. sometimes a little wd-40 works. but you need to get to it directly.

Jan 11, 2010 | 2008 Hummer H2

3 Answers

Seabring wont come out of park


check the fuses especially the one(s) for the brake lights. have someone stand in back of car and see if brake lights even work.when you step on brake pedal,you should be able to hear a "click" that is the shift release solenoid letting the shifter come out of park. u might also have a bad brake lite switch or broken/burnt wiring coming off the brake light switch.

Aug 31, 2009 | 2007 Chrysler Sebring Sedan

1 Answer

My 2005 hyundai accent wont shift out of park unless i use the shift lock override. any advice?


on most cars when u step on the brake pedal youll hear a "click" near the center console which is the shift solenoid releasing the "lock" on the floor shifter allowing the shifter to come out of park.check to make sure all the fuses are good and check the brake lite switch(es) and wiringfrom brake lite switch to shifter solenoid.a wiring diagram always helps.

Aug 28, 2009 | 2005 Hyundai Accent

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