How to Program a Keyless Entry for an Oldsmobile Alero

by Andrew Todd

The Oldsmobile Alero was available as a sedan or a coup with a 140 horsepower 4-cylinder or 170-horsepower 6-cylinder engine. Most models of the Aleros included a keyless entry system, which allowed you to lock and unlock the doors without physically inserting the key into the door. If you replace the batteries in your keypad, or purchase a new keypad, you must reprogram the keypad to your particular Alero. Programming the keypad is a simple process, provided you follow the proper procedure.

Step 1

Sit in the driver's seat of the Alero and close all of the doors.

Step 2

Insert the key into the ignition and turn it to the "On" position, then return to the "Off" position.

Step 3

Remove the key from the ignition.

Step 4

Press and hold the door "Unlock" button on the driver's side door handle. Continue holding the "Unlock" button while the next steps are completed.

Step 5

Insert the key into the ignition, then remove it. Ensure that the ignition remains in the "Off" position.

Step 6

Insert the key into the ignition once again, then remove. Again, ensure that the ignition remains in the "Off" position.

Step 7

Insert the key into the ignition, then release the "Unlock" button. The vehicle's horn will sound three times, indicating that the vehicle has entered "Program Mode."

Step 8

Press and hold both the "Lock" and "Unlock" buttons on the keypad that you would like to program. Continue to hold the buttons until the vehicle's horn sounds two times, which will take approximately 15 seconds. Repeat this step for each additional keypad that you would like to program.