The front brake rotors can warp and cause a vibration when braking. The rotors will need to be machined or in cases where they are worn too thin, replaced to correct this issue.
The AC may stop working due to a refrigerant leak from the condenser. GM has developed and updated condenser and mounting bracket to help prevent the replacement condenser from failing in the same manner.
The rear light socket plate may fail causing a brake light or other rear light to stop working.
A water leak on the passenger floor can be caused by a clogged AC evaporator drain.
Power door locks can activate intermittently due to a faulty door lock actuator in the driver's door.