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ebrock63, Repair shop manager and tech
Category: Transmissions
Satisfied Customers: 29711
Experience:  Over 25yrs experience as Shop manager and tech
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My car will not shift out of park. This happens

Customer Question

My car will not shift out of park. This happens intermittently. 3 out of 5 days I can't drive my car because it won't shift out of park. 2005 Cadillac STS
JA: Do you have brake lights? Have any trouble codes popped up?
Customer: Yes I have lights & no trouble codes other than my oxygen sensor needing to be replaced.
JA: Are you fixing your STS yourself? What have you tried so far?
Customer: No im not fixing it myself but I like to research so I kind of know what's going on with it. I'm a woman & I don't want to be taken advantage of.
JA: Anything else you want the mechanic to know before I connect you?
Customer: The mechanic said it could be a cylinoid in the shifter that needs to be replaced
Submitted: 18 days ago.
Category: Transmissions
Expert:  ebrock63 replied 17 days ago.


I am sorry that you have not been helped yet. I just came online and saw your question.

The 2 most common causes are the brake switch and the shift interlock solenoid. Both are part of the BTSI- brake transmission interlock system.

When it doesnt shift out of park, you need to check the brake lights. If they are not working, then it is the brake switch. If they are, it is the shift interlock solenoid at the shifter assembly.

Expert:  ebrock63 replied 16 days ago.

I noticed we have not yet resolved your concern you asked about. I would sure appreciate it if you would reply so I can offer my skills and knowledge and repair guide access to help as best I can.

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Expert:  ebrock63 replied 10 days ago.

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