Jeep Garage  - Jeep Forum

Jeep Garage - Jeep Forum (
-   Engine Performance/Intake/Exhaust (
-   -   99 Grand Cherokee. Key won't release in park (

shizzel 06-13-2011 08:52 PM

99 Grand Cherokee. Key won't release in park
Hello All,
I replaced my brake booster today. All went smooth except when i turn off the ignition the Jeep shuts off but the key stops and will not come out. The Jeep will not shift into gear with out the brake. Any help would be greatly appreciated.

TJXJWJ 06-13-2011 09:08 PM

Re: 99 Grand Cherokee. Key won't release in park
I'm pretty sure you're not supposed to be able to shift without your foot on the brake. If I'm not mistaken, that's pretty standard on all modern vehicles.

As for not being able to remove the key, it could be a failing ignition switch, or a worn out key or both. Do you have a 2nd key you could try? Is the steering wheel locked? Sometimes if the steering wheel is locked, it's hard to remove the key.

Frango100 06-13-2011 09:53 PM

Re: 99 Grand Cherokee. Key won't release in park
This problem was not there before changing the brake booster?
Regarding the use of the brake pedal to shift out of park, thats designed like that.
Regarding that you canīt get the key out of the lock, does the key turn completely to the off/lock position? If not you probably have to adjust the park lock cable.

(1) Remove floor console as necessary for access to
the brake transmission shift interlock cable. (Refer to
(2) Shift the transmission into the PARK position.
(3) Turn ignition switch to LOCK position.
sure ignition key cylinder is in the LOCK position.
Cable will not adjust correctly in any
other position.

(4) Pull cable lock button up to release cable (Fig.
(5) Ensure that the cable is free to self-adjust by
pushing cable rearward and releasing.
(6) Push lock button down until it snaps in place.

shizzel 06-13-2011 11:47 PM

Re: 99 Grand Cherokee. Key won't release in park
Thanks for the replies, i really appreciated them. No ignition problems before replacing the brake booster. I need to clarify a bit. There is no longer a "click" when the brake pedal is pressed, as in releasing the shifter. Brakes and brake light work fine. The key turns to the "start" position and starts the engine and runs fine. I can turn the key to the "off" position and shut off the engine however, the key stops there and will not go into the "lock" position.

Basically the key is in the ignition and i can't lock the doors. It's almost like the ignition doesn't know the car is in park.

2005JGC 06-14-2011 01:36 AM

Re: 99 Grand Cherokee. Key won't release in park
It sounds like you need a new lock cylinder. Pretty common on the WJ. If you pull the column shroud off with the key in the acc or run position (I cannot remember) there is a silver tab under the lock cylinder. in one of the two positions I mentioned you will be able to depress this tab, grab the key and pull the entire lock cylinder out. from there inspect, if the ignition will still not go into lock, then its for sure your issue.

cheapjeep 06-14-2011 09:54 AM

Re: 99 Grand Cherokee. Key won't release in park
If this started when you changed the booster check the interlock switch on the brake pedal.You may have knocked the wires off or got it out of adjustment when changing the booster.

shizzel 06-14-2011 10:28 AM

Re: 99 Grand Cherokee. Key won't release in park
Thanks for the new suggestions. Just installed a new lock cylinder and the key still won't go into the lock position. I'm pulling the center console. There appears to be a solenoid approx 6 inches from the lock cylinder with a molex connecter. The solenoid is hot to the touch. does that solenoid activate the lock on the cylinder?

shizzel 06-14-2011 10:59 AM

Re: 99 Grand Cherokee. Key won't release in park
Okay, update. pulled console. the cable going to the blue plastic piece is extremely loose. I pulled it out and was able to get the key in the lock position. Now the car will go into gear without pressing the brake. I'm sure it needs to be adjusted. Thanks for all your help everyone!

Frango100 06-14-2011 02:33 PM

Re: 99 Grand Cherokee. Key won't release in park
You are talking about the park/lock cable? When that one is not adjusted well, you get problems as you had discribed.
Is the cable loose now? After adjustment you should not be able to shift out of park position without pushing the brake pedal.

shizzel 06-14-2011 08:35 PM

Re: 99 Grand Cherokee. Key won't release in park
It's the park/lock cable. The solenoid doesn't work. It's just hot to the touch. I had to leave it disconnected. I called around and no one can tell me how much it is without a part #. There is no part # on the cable. Good new is the key is fully functional. Anyone have the part #?

Frango100 06-14-2011 10:54 PM

Re: 99 Grand Cherokee. Key won't release in park
But did you try to test the solenoid first? It can be that the problem was a misrigged cable.
I have never looked into this system before, but is the solenoid not only activated when applying the brake? When that is the case, it would not be normal to be hot, or the brake pedal switch should be misrigged. (as already stated by cheapjeep before)
This system is called BTSI (Brake Transmission Shift Interlock system), but also after some googling i couldnīt find any P/N yet.
Is there nothing written on the solenoid itself?

Frango100 06-15-2011 07:27 AM

Re: 99 Grand Cherokee. Key won't release in park
Just had a look at my jeep. The solenoid is there only to lock/unlock the shift handle push button, in combination with the brake pedal switch. It should be energized with the ignition switch in run only and fall off when the brake pedal is depressed.
The shift handle push button mechanically actuates the park lock cable. So it seems that you have 2 different problems:
1) the misrigging of the park lock cable, causing the ignition switch not going to the lock position. (rigging procedure i had given before)
2) the BTSI solenoid. When listening in my jeep, it was almost impossible to hear the solenoid engaging/disengaging. Did you check the solenoid visually if it moves when switching the ignition switch from off to run?

All times are GMT -5. The time now is 08:38 PM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community