Question about Hummer H2
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
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
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.
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
Oct 13, 2015 | 2006 Hummer H2
Apr 18, 2015 | Cars & Trucks
Mar 30, 2014 | 2007 Hummer H3X
May 28, 2012 | 2006 Hummer H3
Apr 17, 2012 | 1997 Mazda 626
Jul 29, 2011 | 2005 Nissan Altima
Jan 11, 2010 | 2008 Hummer H2
Aug 31, 2009 | 2007 Chrysler Sebring Sedan
Aug 28, 2009 | 2005 Hyundai Accent
390 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: