Re: My key fob has quit working and it tells me no key...
Mine did the same thing. I put the fob into the reprogramming slot located in the center console and was able to get it started by leaving the in the slot. Hope it works for you.
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Either the fob batteries are low, or the antennae that gets the signal has an issue. Find a local alarm installer / radio installer or auto locksmith. The can test and/or replace the batteries and check the system with a pro grade scan tool computer..
It probably thinks you're trying to program a key & fob. I really don't think you can just 'make' a key - I think it needs to be a regulation key fob + key for that particular car - security features and such.
It actually sounds like the micro switch in the drivers door that reads the key fob is bad, if the key works and the fob works on the other doors and the trunk. You will most likely need to have the door handle replaced, they're not very expensive by themselves but it can be a lot of work. Cadillac CTS Door Handle Repair Micro Switches Replacement 2nd Gen The video is a 2008 cts but will give you a good idea of whats wrong and whats required to fix it
Are both FOBs doing this? If it's only one I would replace the FOB battery.
NO FOBS DETECTED Message on DIC, No Crank/Start Unless Fob in Center
Console Pocket or Remote Keyless Entry (RKE) Button Inoperative (Replace
Remote Control Door Lock, Theft Deterrent Receiver Assm) #04-08-52-008
Tell the Dealership to look at this. They should be able to fix it quickly.
My cadilliac sts 2005 key fob started no working. when I try to start it the car tells me that the key fob is not detected. I just changed the battery and it is still doing it. What else could be wrong with it:
The key fob does not get charged. Instead you replace the battery inside the Fob. if you look behind the fob it tells you what battery it needs for replacement. CR2032
Slight glitch from what I've found. Has happened to me at the gas pump. One other time while talking outside my car with out opening the doors. If No FOB detected then step out of the car lock and unlock, get back in and try. If still dosen't detect then you need to walk twenty feet away with your key and it should reset.
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