This keyless remote programming instructions work for GREY REMOTE remote with part # PT398-07101, 08191-00871, FCC id BAB237131-056, BAB237131-022 on the back of it.
2. Press and hold the receiver PROGRAMMING SWITCH/BUTTON for 3 seconds (see figure). In some cases the button cannot be accessed
with a finger – use a pencil or similar narrow object to poke through the Programming Button access hole. For most vehicles, the receiver is located underneath either the driver or passenger front seats. On others it is behind the driver’s dash. In the case of some Camry’s, the receiver can be accessed by gently prying out the black faceplate behind the mirror control switch. The black faceplate is approx. 5 inches wide by 3 inches tall.
4. Within 5 seconds of lighting the status MONITOR LED, press the remote TOP or BOTTOM button
(Either of these 2 button can be programmed to the system. The other button can be programmed to operate a second Toyota vehicle with the same system).