If they are just screw holes put a round head screw in them and paint over.
If they are larger I have used blank ivory 2x4 electrical covers. painting is your option depending on color differences. They go unnoticed.
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles