Chevrolet began putting a keyless entry system in the S10 pickup in 1995. The system allows the driver to operate vehicle door locks and to open the trunk from a distance, using a remote control that doubles as a keychain. The remote also includes a panic button that triggers a vehicle alarm when pushed. When a remote control is lost or broken, a new one can be purchased at a dealership or online retailer, and the vehicle owner can program it without a mechanic.
Remove the cover from the Data Link Connector, which is located under the dashboard between the steering wheel and the driver's door.
Place one end of a jumper wire into port G and the other end into port A. Port G is the port closest to the driver's door in the bottom row, port A is the port farthest from the door in the top row. The doors of the truck will lock and unlock when the ports are properly connected.
Push a button on the remote that needs to be programmed and listen for the doors to lock and unlock to confirm that the remote has been accepted. Repeat this step with any other remotes that need to be programmed.
Take the jumper wire out of both ports and replace the cover on the Data Link Connector. Exit the vehicle and test the remotes.
Remove the cover from the Data Link Port that is found under the dashboard between the steering wheel and the driver's door.
Connect ports 4 and 8 with a jumper wire. Port 4 is the fourth one from the driver's door on the top row, and port 8 is the farthest one from the door in the same row. Listen for the truck to lock and unlock the doors when this is done correctly.
Push down the lock and unlock button on the remote that needs to be programmed. Continue holding them until the vehicle doors lock and unlock. This will take approximately 15 seconds. Repeat this step with any other remotes that need to be programmed.
Take the jump wire out of the Data Link Port and replace the cover before exiting the vehicle and testing the remotes.
Sit inside the vehicle and close all of the doors. Make sure the key is in the ignition in the off position.
Push down the unlock button on the driver's door. Do not release the button during the rest of the steps.
Move the ignition key to the on position, than back to the off position. Repeat this step once more as quickly as possible. Once it has been done twice, let go of the unlock button on the driver's door and listen for the doors to lock and unlock to signify that the truck has entered programming mode.
Push both the lock and unlock buttons on the new remote and keep them pushed down until the vehicle locks and unlocks the doors to signify that the remote was accepted. Repeat this step with any other remotes that need to be programmed.
Move the ignition back to the on position to take the vehicle out of programming mode. Test the remotes from outside of the vehicle.
