Up programmers four key fobs will work and based programming amount will investigate what number of time you have got programmers program each. IE: 1 remote application 4 times2 remotes software each remote 2 times3 remotes program 2 remotes 1 time and programming last one 2 times4 remotes software each one1 step Open programming drivers door gotta remain open and internal/dome light on main light2 step Turn programming ignition switch programmers programming on or ignition position DO NOT START engine3 step Press and hold programming emergency override button small red button on left side of guidance wheel, around by programming 14th second, programming horn will sound 3 times. 4 step Press programming lock/arm button on programming remote programming remote being programmed programming horn will sound once, indicating that programming system has found out that remote. 5 step repeat step 4 for either same remote or addl remotes programming fac system must recognize 4 memory lots , hence programming possibility programmers program 4 remotes. 6 step Turn programming ign switch programmers off place and unlock programming override button2005 Pontiac Grand Prix. Remove programming ignition key from programming ignition lock cylinder.