How to Test a Transponder Car Key

Written by matthew fortuna | 13/05/2017
How to Test a Transponder Car Key
Transponder keys can be synced from your driver's seat. (car key and remote control isolated image by Nikolay Okhitin from

Transponder car keys are electronically synced to your engine, providing an extra level of security and convenience. These keys, also known as smart keys or chip keys, can be synced to your engine from your driver's seat. Once programmed, only a coded key can be used to start your car. You can program and test your key in just seconds and have the new or reprogrammed key ready to use immediately.

Enter your car, insert your transponder key into the ignition and turn the key to the "On" position.

Wait for the security light to turn on and leave your key idle in the ignition for 10 minutes until the security light turns off.

Turn your key to the "Off" position within one minute of the security light turning off.

Repeat Steps 1, 2 and 3 another two times, ending with the key in the "Off" position after the third cycle. This will take about 30 minutes.

Remove the key from the ignition and then insert it again and turn it "On" to test the programming.

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