How do you program keyless entry remote on a Isuzu NPR 200?

To program a keyless entry remote for an Isuzu NPR 200, first, ensure that all doors are closed and the vehicle is in the "Off" position. Insert the key into the ignition and turn it to the "On" position (not starting the engine) and back to "Off" twice, ending in the "Off" position. Press and hold the lock button on the remote for about 10 seconds until the doors lock and unlock, indicating successful programming. Repeat this for any additional remotes, then turn the ignition to "On" to exit programming mode.