2003 Silverado Z71 Ext Cab 4x4 with RDS Bose Stereo Cd player. Regarding the keyless remote, the locking button is working fine, it's the unlock botton on both unit's that is not working. I have cleaned all contacts internally on both units with an acetone wipe no change. This morning I took a look at the owners manual, tried the reprogramming function that was explained, pressing down on the lock, and unlock buttons together and hollding down for 15 seconds, no change. Put in a new battery then reprogrammed, no change. The lock button works fine the unlock is still not working. Frustrated and looking for help. Happy Thanksgiving.