A visitor to our blog saw our last entry about Buick Century keyfobs (link here) and thought he recognized Remotes Unlimited part 122-1122 as the same part used for his Chevrolet Camaro. This is possible. The 3-button keyfob with FCC ID ABO0104T was used on Camaro sedans equipped with factory keyless entry until 1995. Many other vehicles used Remotes Unlimited part 122-1122 during the early 1990s, including Buick Regal and Roadmaster; Chevy Caprice, Cavalier, Impala, Lumina and Monte Carlo; Oldsmobile Achieva and Cutlass; and Pontiac Firebird, Grand Am and Grand Prix.
There was also a 2-button version of the remote with FCC ID ABO0104T that was used on many trucks and SUVs during this period.
See 2-button GM remote at this link.
Nearly all applications that use either of the remotes with FCC ID AB00104T are user programmable.