Are you having trouble with your 1999 Toyota Avalon key fob? Perhaps it’s stopped working, or you’ve purchased a new remote and need to get it programmed. The good news is, programming your key fob for a 1999 Toyota Avalon can often be done right at home without any special tools. This guide provides you with clear, easy-to-follow instructions to program your key fob and regain remote access to your vehicle.
Step-by-Step Guide to Program Your 1999 Toyota Avalon Key Fob
This procedure is designed for the factory-installed keyless entry system in your 1999 Toyota Avalon. Before you begin, make sure you have all your key fobs that you wish to program, as you’ll need to program them all in one session.
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Start with Key and Doors: Ensure your key is out of the ignition. Open and unlock only the driver’s side door. Make sure all other doors, including the trunk, are completely closed.
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Key Insertion Sequence: Insert your key into the ignition, and then immediately pull it back out. Do not turn the key, just insert and remove.
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Locate Door Lock Switch: Find the power door lock/unlock switch on the driver’s side door panel.
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Lock and Unlock Cycle (5 Times – First Set): Perform the LOCK and UNLOCK sequence using the door lock switch 5 times in quick succession. Aim for approximately one second per complete LOCK and UNLOCK cycle. (Hint: LOCK then UNLOCK counts as one cycle).
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Open and Close Driver’s Door: Open and then close the driver’s side door.
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Lock and Unlock Cycle (5 Times – Second Set): Again, perform the LOCK and UNLOCK sequence using the door lock switch 5 times, maintaining the pace of about one second per cycle. You will need to complete the following steps fairly quickly, as you have a 50-second window from this point.
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Key Insertion and Ignition Cycle: Insert the key back into the ignition.
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Ignition ON/OFF Twice: Turn the ignition to the ON position (just before starting the engine) and then immediately turn it back to the OFF position. Repeat this ON/OFF cycle two times.
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Remove Key: Take the key out of the ignition.
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Confirmation – Door Lock Cycle: At this point, the door locks should automatically cycle (lock and unlock). This is your confirmation that you have successfully entered programming mode. If the doors do not cycle, you may need to repeat the procedure from the beginning, paying close attention to timing and door closures.
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Program First Remote: Take the first key fob you wish to program. Press and release the LOCK button on the remote.
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Confirm First Remote Programming: Immediately press and HOLD the LOCK button on the same remote for about 2 seconds. The door locks should cycle once again to confirm that this remote has been successfully programmed.
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Program Additional Remotes (If Any): If you have more remotes to program, repeat steps 11 and 12 for each additional remote. If you only have one remote, proceed to the next step.
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Exit Programming Mode: Simply close the driver’s side door. This action will take the system out of programming mode.
An image of a 1999 Toyota Avalon key fob remote, part number HYQ1512Y, highlighting the lock and unlock buttons.
Troubleshooting Tips
If you encounter issues during the programming process, consider these troubleshooting tips:
- Timing is Crucial: Ensure you are maintaining the correct timing for the lock/unlock cycles and ignition sequences. A slightly off timing can prevent the system from entering programming mode.
- Door Closure: Double-check that all doors are fully closed except when instructed to open the driver’s door. A door ajar can interrupt the process.
- Battery Condition: Make sure the batteries in your key fobs are new and have sufficient charge. Low batteries can sometimes cause programming failures.
- Repeat the Procedure: If it doesn’t work the first time, carefully repeat the entire procedure from step 1. It sometimes takes a couple of attempts to get the timing and sequences just right.
- Factory System: This procedure is specifically for the factory-installed keyless entry system. If your Avalon has an aftermarket system, these steps will not work. Consult your aftermarket system’s manual for programming instructions.
If you are still having trouble programming your 1999 Toyota Avalon key fob after following these steps and troubleshooting, it might be best to seek professional assistance. You can search online for “key fob programming near me” or “automotive locksmith [your city]” to find local professionals who can program your remote for you. Alternatively, your local Toyota dealership can also provide key fob programming services.
