Hey everyone!

My wife went to the dealership to get a second key and new keyless entry remote for our 2005 Grand Prix GP today and they said they couldn't get the remote to program. The key works fine, but the guy said he thinks he can't program the remote because the check engine light is on. Anyone had experience with this? Is the check engine light really to blame for not being able to program the remote?

(The car has been giving me a p0420 off and on for about a year now (it seems to turn off when it's warm outside) despite changing the catalytic converter and both 02 sensors--->I may ask more about the engine code problem in a different section.)