*Programmed to your specific vehicle
*Shipped to your door ready to install
*1 YEAR Replacement Guarantee – no hassle
*No core charge –you keep your existing PCM- no extra trips to the post office
*We ship the same day or following business day from receipt of payment and your 17 digit VIN - item is in stock
****** You can send us your 17 digit VIN (vehicle identification number) at the time of payment in the "note to seller" or you can send it after your purchase and payment by contacting us through the ebay message system.
******GM installed this 12597121 PCM in all of the above applications. This was possible because each of these models received their specific programming from the factory. With your purchase, we will program the PCM to your VIN (vehicle identification number) with the latest software updates available from GM.