Most 2000 Concordes do have chip keys.
The Chrysler 300 key FOB must initially be programmed at the Chrysler dealership. You can use the Chrysler dealership FOB code to change the initial code to your personal code.
Your ign key has a chip in it so no one can use another type of " skeleton" key to start it. Wait for about 3 minutes and the light should go out so you can try it again. If it keeps on messing up, take the car to a Chev dealer and they will build a proper key and chip.
colora
Cleaning a chip in a key is very easy. You will need to use either rubbing alcohol or Windex to carefully wipe down the chip. Do not press too hard when cleaning or you can potentially ruin the metal strip.
No, only use Chrysler atf+3 or +4
R134a
The Chrysler type is a red 5 year. The after market type is Zerex G05.
Unlock the doors with the key, or use the remote.
I use the dealer's scan tool.
41TE
5w30