ok so i just bought my blazer, i tried searching for 2 hours couldnt find anything. the owner gave me 2 keyless entry remotes with it. niether of them work. i replaced the battery on them and still nothing. i tried going into program mode (ignition on,off,on,off, while holding lock). is that the correct programing procedure for this year? i also wonder if it even has keyless entry on it. is one of the codes AU3? i dont have the AU0 code. any help would be great!

 

If you have replaced the batteries then the fobs will need to be re-synchronised. Hold down the lock & unlock buttons together for at least 10 seconds & door locks should cycle. Hopefully all will be OK then.