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To reset the security system on your 2008 Chevy Uplander, first turn the key to the ON position and try starting the engine. Once you release the key to the ON position, the SECURITY light will come on. Wait for 10 minutes until it goes off. Then, turn the key to OFF for 10 seconds before turning it back to ON to start the engine again. If the engine starts and runs, the system has been reset successfully. If it doesn't start, release the key to the ON position and follow the remaining steps. Repeat the process of waiting for the SECURITY light to turn off after each attempt. Finally, start the engine after the last step to complete the reset process.
To deactivate the security system on your 2008 Chevy Uplander, first unlock the vehicle's door using the key in the driver's side door, then start the car by turning the key in the ignition.
I no longer have a key fob.
I drive a 2005 Chevy Uplander with a recently replaced lock cylinder and key. It was starting fine until my driver's door broke, and now there's a padlock symbol on the dashboard, and the car won't start. How do I resolve this issue?