The right rear window in my '99 Yukon will only go down using the driver's door switch, not up. This just started. The RR door window switch works fine. The other windows work as they should, from either the driver's door or the from the door itself.
Where should I start troubleshooting this? Does the switch panel just pry up? Should I try some contact cleaner on it?
Any advice would be appreciated.
Ray