Aiyo, exercising the lifter as is not a preventive measure.astroboy said:Wow.. so exercising the lifter often also can't prevent its failure. Useless design.
The proper preventive measure is to wind down all windows and clean the window edges and rubber lining of dirt (every 2 to 3 months).
Apply the area where the glass area which is touching the rubber lining with silicon grease.
The reason most failure occurred at the rear windows is because they are seldom used. The dirt built up and "gripped" the window
pane and cause high resistance. Sometime the tinting are one of the cause of the problem as it add thickness to the window pane.
In my case, it was a broken wheel. Got it replaced for less than RM50 (DIY).