For the driver and passenger doors, repeating forceful operations of the door handle (made of resin) at high ambient temperature can break the attachment part of the door handle release rod, which releases the door latch. If this happens, the release rod comes off, and it becomes impossible to open the door from the outside. In such a case, if the release rod falls towards the passenger compartment, in the worst case, winding down the glass with the door unlocked could cause the door to open.