1996 SLS Won't Disengage Parking brake when put into gear?
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Northstar Engines and System Technical Discussion Discussion, 1996 SLS Won't Disengage Parking brake when put into gear? in Cadillac Engine Technical Discussion; My 1996 SLS won't let go of the parking brake when I put it in gear. The other day I ...
  1. #1
    Twilightcall's Avatar
    Twilightcall is offline Cadillac Owners Fanatic
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    1996 SLS Won't Disengage Parking brake when put into gear?

    My 1996 SLS won't let go of the parking brake when I put it in gear. The other day I had the p-brake on and put it in drive. Nothing happened. I found the manual release but I was wondering what would cause this. I checked all of my fuses in the entire car. Any info would be appreciated.

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  3. #2
    outlaw1369 is offline Cadillac Owners Member
    Automobile(s): 1995 Eldorado 1996 Sedan Deville
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    Re: 1996 SLS Won't Disengage Parking brake when put into gear?

    Had the same problem with my 96 Deville. Also noticed a hissing noise coming from under my glove box. Unbolted the black panel under the passenger side dash (5 hex screws) and there was a clear box with 5 or 6 multicolored vaccum lines attached via a harness. The top couple lines has started to pull off thus creating a vaccum leak. Pushed the lines back on and next thing you know my parking brake works again. I am not sure if the brake release is controlled by vaccum it may just have been coincidence. Just my .02$

  4. #3
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
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    Re: 1996 SLS Won't Disengage Parking brake when put into gear?

    I think the '96 is vacuum controlled with vacuum off of the A/C programmer behind the glove box. At some point (not sure when) they when to electronic control for the brake release (my duaghters '99 is electronically controlled).

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