GM used a family of 3-button and 4-button keyless entry remote transmitters with FCC ID KOBUT1BT on many vehicles at the end of the 1990s and into the early 2000s. These key fobs have been discontinued by GM. However, Remotes Unlimited does have replacement options for these parts.
The most common of the parts was the 3-button remote used on Chevrolet and GMC trucks and SUVs. You can see and buy this part (098-7401) at the following link: 3-button replacement key fob for original FCC ID KOBUT1BT remotes
Some SUVs used a 4-button key fob with a rear window button. That part is 098-7400: 4-button replacement key fob for SUVs with original FCC ID KOBUT1BT remotes
Most sedans that used a KOBUT1BT part used a 4-button transmitter with a trunk button. Many of these vehicles had seat memory, so some of the original remotes had a seat memory fob number on the back. Seat-memory and non-seat-memory remotes are identical except for the number on the case. So, our part 098-7435 works for all of the sedans that originally had Lock, Unlock, Panic and Trunk buttons. You can see and buy this part at the following link: 4-button replacement key fob for original sedan remote with FCC ID KOBUT1BT
Please note that trucks and SUVs using these remotes can be self-programmed (by you) to accept a new remote. This is not true for all sedans though. Some are self-programmable and others require a scan tool for programming. If you have any questions about this, read the programming note on our website carefully or feel free to call us during normal business hours.