A reader recently asked for help determining the correct keyless entry remote transmitter for his 2001 Sonoma. This is an excellent question because 2001 Sonoma vehicles used two different factory keyless entry systems with visually similar but non-compatible remote transmitters.
For the 1st build (vehicles built through February 2001), factory-installed systems use GM part number 15732803 with FCC ID KOBUT1BT (equivalent to Remotes Unlimited part 517-1517). Replacement key fob for GM part number 15732803 with FCC ID KOBUT1BT
For the 2nd build (vehicles built during or after March 2001), factory systems use GM part 15042968 with FCC ID KOBLEAR1XT (equivalent to our part 514-1514). Replacement key fob for GM part 15042968 with FCC ID KOBLEAR1XT
If you have your original remote, you can look on the back of the transmitter and match the FCC ID or OE part number to determine which Remotes Unlimited part you need. In the event you do not have an original transmitter, you can find the build date of your vehicle on the GM manufacturing sticker or send us your VIN and we can determine the part you need.
The keyless entry system in all 2001 Sonoma vehicles can be programmed by a user to accept a new remote. Remotes Unlimited includes programming instructions and free phone technical support with purchase of a keyfob.