Question about 2005 Cadillac STS

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2005 cadillac sts remote transmitter

Could cold temperature outside be causing car to be unresponsive to remote transmitter? All of a sudden car nothing works remotely. Car still recognizing FOB, but remote start, trunk release,door locks, panic alarm arent working. Did replace batteries in transmitter and had them tested. They are fine just not operating anything.. Problems are with both transmitters. What in the car could be respondsible for this. Could the cold weather be causing this failure?

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  • jagerette2 Jan 17, 2009

    I'm in eastern Pa. It has recently gotten pretty cold here, like 10' F. It seems like that is when they stopped working. Actually it seemed like the battery in the transmitter itself were going bad (like youd have to hit buttons) more then once to unlock doors. So changed batteries in transmitters. Then they just stopped working all together. Although the transmitter is needed to start the car ,Luckily the car will still start . More or less the car is acting like valet mode is turned on but it isnt.

  • jagerette2 Jan 18, 2009

    Car has push button start. It does have DIC but I have never seen an option for reprogramming remote. There is a place in center console for reprogramming a newly purchased remote. I assume this is how I would reprogram the remote. I am weary of trying this because of car not useing key to start. But will try later today once the snow melts. If it is a receiver problem. Is that something only cadillac service dept. can do or can I have it done anywhere? I just spent $65.00 on wiper blade refills which is crazy!!! But cadillac dealer is the only place that carries them. Is that how its going to be everytime something goes wrong with this car?

  • yadayada
    yadayada May 11, 2010


  • Anonymous Mar 17, 2014

    battery was new in the fob the steering wheel wasn't straight when i parked it nothing would work on the car except the alarm

  • Anonymous Mar 17, 2014

    I reset the FOB using the instructions in the manuel for my 2007 Cadillac STS and car will not start.

  • Anonymous Mar 18, 2014

    Enters program after 8 key on-off cycles with door locks operating but remotes will not be recognized. Remotes battery and RF signals operate.



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This is the procedure for a reprogram of the remote's from the factory service manual, if it doesn't work then u may have a receiver issue.
Use this Procedure for Vehicles with
Driver Information Center Buttons

This information is in your Owners Manual in the
Drivers Information Center Section.

1. Insert Key and turn to ON position so you can access Driver Information Center

2. Press the vehicle information button until

3. Press the set/reset button until

4. Press and hold the lock and unlock buttons on the first keyless remote at the same
time for approximatley 15 seconds. A chime will sound indicating that the remote is

5. To program additional remotes at this time repeat step 3.
This vehicle can have a maximum of eight remotes programmed.

6. To exit programming mode turn key off and remove key.
Test remote(s).

Use this Procedure for Vehicles without
Drivers Information Center Buttons

To access this display, the vehicle must be in Park (P) with key in the on position (as far
as you can go without cranking engine)

1. Press the trip odometer reset stem until RELEARN REMOTE KEY displays.
2. Press and hold the trip odometer reset stem for three seconds.
The message REMOTE KEY LEARNING ACTIVE will display

3. Press and hold the lock and unlock buttons on the first keyless remote at the same
time for approximately 15 seconds. A chime
will sound indicating that the remote is

4. To program additional remotes at this time repeat step 3.
This vehicle can have a maximum of eight remotes programmed.
5. To exit programming mode turn key off and remove key.
Test remote(s).

Posted on Jan 17, 2009

  • yadayada
    yadayada Jan 17, 2009

    Hope this helps, good luck, hope this fixes it.



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Transmitter Programming
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2. Insert the ignition key into the ignition lock cylinder.
3. Press and hold the door unlock switch.
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Connect a scan tool.
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Select body code.
Select body style code.
Select other.
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Proceed to the next transmitter and repeat steps 1-11 until all of the transmitters are complete.
Exit the remote keyless entry (RKE) programming.
Disconnect the scan tool.
Cycle the ignition. Test the transmitters for proper operation.

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