This keyless remote programming instructions work for isuzu remote with FCC id BAB237131-013, on the back of it.
2. Turn the ignition to ON.
3. Press and hold the green programming button on the side of the unit with a pen or pencil. You will have to poke through a hold about the size of a pencil located on the side. When the exterior or LED lights go on, release the programming button.Do step 4 within 5 seconds of step 3.