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1998 concours reprogram key fobs

438 views 2 replies 3 participants last post by  Submariner409 
#1 ·
Hi I've tried to use the search function and I've gotten nowhere
it seems on my 1998 Concours my Dash layout is different then the other two devilles .I'm trying to enter the diagnostic to program the key fob since the car was in storage they've lost connection
The only function that works is the gas cap from the remote none of the instructions match what I'm seeing as far as the button to enter and scroll through the Diagnostics to get to RFA can someone please please help me it's a 1998 Concours. I'm hoping that it's not tech2 only operation
 
#3 ·
I forget which year marked the end of self-programmed fobs - late 1990s.

If the locks/keys are the PK3 system then it takes a GM dealership or comprehensive automotive locksmith to program fobs 1 and 2. Yes, Tech-II.

Are your keys stamped "PK3" on the metal shank ?
 
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