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03 Deville DTS won't shift out of park

9K views 6 replies 7 participants last post by  Submariner409 
#1 ·
HELP!! Does anyone have any suggestions? My Deville DTS would not shift out of Park. This is the most recent of several problems I am having. I need to know if I need to replace the shift lever assembly or if there could be any other possible concerns?
 
#4 ·
It sounds like the shifter solenoid went south. Under your ashtray, in that little curved area, lift up the rubber cover, and you'll find a compartment door. Take the compartment off, and inside you'll see an orange tab. Push it forward toward the front of the car. That's a manual release.

Basically there's a solenoid that activates when you press the brake pedal. You'll notice it usually makes a click, and that releases the shift lock.

I think it's called the BTSI or brake transmission shift interlock.
 
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