Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 Suzuki Vitara 2WD L4-2.0LFACTORY OEM SERVICE PROCEDURE
Keyless Entry Transmitter: Testing and Inspection
Programming Transmitter Code
NOTE:
^ Four transmitter codes can be registered at the same time.
^ When fifth transmitter code is registered, the oldest one will be cleared.
^ Register transmitter code(s) to be used in total four times to delete registered transmitter code(s).
If transmitter / door lock controller is replaced with new one or additional transmitter(s) is necessary, program transmitter code(s) as follows.
1. Confirm that all the doors are closed and the ignition key is out of the ignition cylinder.
2. Open the driver's door. Insert the key and turn the ignition switch to "ON" position within 10 seconds.
3. Turn the ignition switch to "OFF" position within 10 seconds.
4. Push and release the driver s door switch (1) 3 times within 20 seconds.
5. Turn the ignition switch to "ON" position within 10 seconds.
6. Turn the ignition switch to "OFF" position within 10 seconds.
7. Press and hold both "LOCK" and "UNLOCK" buttons (2) on the transmitter (3) for more than 5 seconds within 20 seconds (after step 6). All the doors will lock/unlock to confirm that this process has been properly done.
8. Press "LOCK" or "UNLOCK" button (2) on the transmitter (3) within 5 seconds (after step 7). All the doors will lock/unlock to confirm that this process has been properly done. With this process, the transmitter has been programmed.
9. If you want to program the additional transmitter, repeat the procedure from Step 1) through Step 8).
10. Make sure that the keyless entry system properly operates by operating each transmitter.

NOTE:
^ Four transmitter codes can be registered at the same time.
^ When fifth transmitter code is registered, the oldest one will be cleared.
^ Register transmitter code(s) to be used in total four times to delete registered transmitter code(s).
If transmitter / door lock controller is replaced with new one or additional transmitter(s) is necessary, program transmitter code(s) as follows.
1. Confirm that all the doors are closed and the ignition key is out of the ignition cylinder.
2. Open the driver's door. Insert the key and turn the ignition switch to "ON" position within 10 seconds.
3. Turn the ignition switch to "OFF" position within 10 seconds.
4. Push and release the driver s door switch (1) 3 times within 20 seconds.
5. Turn the ignition switch to "ON" position within 10 seconds.
6. Turn the ignition switch to "OFF" position within 10 seconds.
7. Press and hold both "LOCK" and "UNLOCK" buttons (2) on the transmitter (3) for more than 5 seconds within 20 seconds (after step 6). All the doors will lock/unlock to confirm that this process has been properly done.
8. Press "LOCK" or "UNLOCK" button (2) on the transmitter (3) within 5 seconds (after step 7). All the doors will lock/unlock to confirm that this process has been properly done. With this process, the transmitter has been programmed.
9. If you want to program the additional transmitter, repeat the procedure from Step 1) through Step 8).
10. Make sure that the keyless entry system properly operates by operating each transmitter.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
