Is your 2003 Nissan Altima key fob malfunctioning or did you recently replace it? Don’t worry, programming a new key fob for your Nissan Altima can often be done right at home without a trip to the dealership. This guide provides simple, step-by-step instructions to program your 2003 Nissan Altima key fob quickly and easily.
Before you begin, ensure all doors are closed and locked. Use the power lock switch on the driver’s side door panel to lock all doors.
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Insert your key into the ignition switch.
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Cycle the ignition by inserting and removing the key from the ignition cylinder rapidly six times within 10 seconds. Make sure to fully remove the key each time. If done correctly, the hazard lights will flash, indicating the system has entered programming mode. If the hazard lamps do not flash, repeat this step ensuring you are completing it within the time frame and removing the key fully each time.
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Insert the key into the ignition again and turn it to the ACC (Accessory) position.
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Within 5 seconds of turning the key to ACC, press any button on your new key fob remote. The hazard lamps should flash once to confirm successful programming of that remote. It is important to only press the button once during this step.
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If you have additional remotes (including existing, working remotes) that you want to program, unlock then lock all doors using the power lock switch on the driver’s side door panel again. Within 5 seconds, press any button on the next key fob remote. The hazard lamps will flash once to confirm programming. Repeat this step for every remote you need to program.
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Turn the ignition key to the OFF position and remove the key from the ignition.
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Unlock the driver’s side door using the door panel switch and open the driver’s door.
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Test all programmed key fobs to ensure they are working correctly by locking and unlocking your Nissan Altima remotely.
By following these steps, you should have successfully programmed your 2003 Nissan Altima key fob. If you are still experiencing issues, you may need to consult your owner’s manual or seek assistance from a professional automotive technician. Looking for a replacement key fob? Visit Keylessentryremotefob.com for a wide selection of key fobs and remotes.
