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Bob, Auto Tech
Category: Chevy
Satisfied Customers: 4087
Experience:  Plus 40 years GM, over 30 certified with Chevrolet, ASE certified Master Tech. (Expired, Retired)
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2003 Gmc Envoy: park and cannot take out the key to turn off car

Customer Question

2003 Gmc Envoy will not stay in park and cannot take out the key to turn off car
Submitted: 8 years ago.
Category: Chevy
Expert:  Bob replied 8 years ago.

Hello, the fact that you can't remove the key is related to the not staying in park. The key can't be removed unless the transmission is locked in park. There are a few possible reasons for this. The first thing you need to do is look at the linkage on the side of the transmission and watch it turn while some one else works the shift linkage. You will be looking to see if the problem is inside the transmission or in the linkage going to it. If you unhook the cable from the side of the transmission and can put the transmission in park manually, then you know the problem is with the cable or the shifter assembly. If it is inside the transmission, the oil pan will need to come off to be inspected. Chances are pretty good the problem is in the shifter or the lock out solenoid for the ignition key. To look at this, you will need to remove the console. There has also been some problems with the rubber boot binding the shifter up so it can't lock in park. That will be the last thing in the post for you to read. Inspect the shift assembly for bent or loose parts that keep it from locking in park. It may just need the cable adjusted and if it looks like that is the case drop me a note and I will send you instructions. You will also want to inspect the park lock solenoid and linkage to make sure it is not loose, bent or broken. If you have problems let me know. The first post below is a list of the causes inside the transmission that would keep it from going into park. the last one is the bulletin on the shifter boot. Keep me informed. Thanks

Document ID# XXXXX
2003 GMC Truck Envoy - 4WD

No Park

No Park



Parking Lock Actuator Linkage (85-90)

Actuator rod assembly bent or damaged
Actuator rod spring binding or improperly crimped
Actuator rod not attached to inside detent lever
Parking lock bracket damaged or not torqued properly
Inside detent lever not torqued properly
Parking pawl binding or damaged

Document ID# XXXXX
2003 GMC Truck Envoy - 4WD

Document ID#(NNN) NNN-NNNN
2003 GMC Truck Envoy - 4WD


Subject:Ignition Key Will Not Remove From Ignition Lock Cylinder (Reposition Shifter Boot) #05-07-30-021B - (10/04/2007)


Models:2004-2007 Buick Rainier
2002-2008 Chevrolet TrailBlazer Models
2002-2008 GMC Envoy Models
2003-2004 Oldsmobile Bravada


This bulletin is being revised to include the 2008 model year. Please discard Corporate Bulletin Number 05-07-30-021A (Section 07 - Transmission/Transaxle).


Some customers may comment that they are unable to remove the ignition key from the ignition cylinder.


The shifter boot may be caught/trapped in the shifter assembly mechanism.




Reposition the shifter boot.

DO NOT replace the complete shifter assembly.

ONLY replace the shifter boot if damaged.

  1. Inspect the shifter boot for being caught/trapped in the shifter assembly.
    If the shifter boot is NOT caught/trapped in the shift assembly, refer to Ignition Key Cannot Be Removed from the Ignition Lock Cylinder in SI.
    If the shifter boot IS caught/trapped in the shifter assembly, continue with the next step.


    DO NOT replace the complete shifter assembly for this condition.
    ONLY replace the shifter boot/handle if damaged by shifter assembly.


  2. Reposition the shifter boot so that it is not caught/trapped in the shifter assembly.

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