The missing drip mouldings are not the main cause of the leak.
Roof drip molding purpose.
Roof drip molding models.
It is the glass sealants that keep out the water.
If you mostly drive with the ac on and the windows closed you can live without.
Ships from toyota parts overstock.
Drip edge flashing roof flashing the home depot store finder.
The purpose of the molding is stated in its description.
To catch drips and prevent them from entering the windows.
It should not be popping off in the car wash.
If you install the mouldings without rectifying the leak at the glasses leakage would still occur though the moulding would help to reduce leakage as water would not be able to accumulate with the moulding.
Drip edges not only act to preserve the appearance of your roof but they help shield your property from potential damages.
There is a reason for this and you should determine what s going on.