Couple problems with remote locking/unlocking
1) Passenger door doesn't unlock or lock with remote or with button on center console. Unlocks using inside handle and will then lock with remote and button on console.
2) holding unlock will open all windows including rear quarters but holding lock will only close front windows not the rear quarters.
After reading up maybe problem with GM5 unit but seems strange that its the locking /closing side of the 3. Also do the manual window switches use different relays to the GM5 unit because rear quarters work fine with switches.