There is no set period recommended by Toyota for body lubrication. However, it is a good idea to lubricate the following body points at least once a year, especially in the fall before cold weather.
Apply graphite lubricant sparingly thought the key slot. Insert the key and operate the lock several times to be sure that the lubricant is worked into the lock cylinder.
DOOR HINGES AND HINGE CHECKS
Spray a silicone lubricant or apply white lithium grease on the hinge pivot points to eliminate any binding conditions. Open and close the door several times to be sure that the lubricant is evenly and thoroughly distributed. When applying grease, the use of a small acid brush is very helpful in getting the grease to those hard to reach areas.
Spray a silicone lubricant on all of the pivot and friction surfaces to eliminate any squeaks or binds. Work the tailgate to distribute the lubricant
BODY DRAIN HOLES
Be sure that the drain holes in the doors and rocker panels are cleared of obstruction. A small screwdriver can be used to clear them of any debris.
Automobiles should be washed with water alone or, if necessary, with a very mild soap solution that will not remove the protective wax layer. During snowy weather many roads are treated with rock salt. This helps to melt ice, but it also speeds up the corrosion process of iron and steel. It is a good idea to wash it off as often as possible.
Waxing a vehicle is an important part of maintaining the protective paint finish. A good quality wax should be used and great care should be used when using a buffer so that the paint is not burned or rubbed through. Compounding should only be done when necessary and should not be done simply because the vehicle is being waxed. Compounding actually removes paint or the glossy coat. It can be done to remove surface scratches or to remove the dead pigment that causes a dull finish.