How to Reprogram a Transponder Key

by Susanne Koenig
itstillruns article image
key image by vashistha pathak from Fotolia.com

A transponder key is essentially a key with a code transmitter embedded that sends a unique alpha-numeric code to your ignition. When received, the transponder in the ignition tells the car that it is okay to start. Programming or reprogramming a transponder key depends on the make and model of your vehicle. For domestic cars with a vehicle identification number (VIN) that starts with 1 or 4, the keys can be reprogrammed by simply taking the keys out to your car and entering the program mode.

Step 1

Enter your vehicle and put the key into the ignition and turn it to the "ON" position. Leave it in for 10 minutes and 30 seconds.

Step 2

Before 45 seconds pass, turn the key to the "OFF" position. Then turn it back to the "ON" position. Wait another 10 minutes and 30 seconds.

Step 3

Repeat the above step by turning the key to the "OFF" position within 45 seconds. Then turn it back into the "ON" position.

Step 4

Turn key to the "OFF" position and then back to "ON." The key is now programmed. Turn it in the ignition to check.

More Articles

article divider
×