The right A-pillar mirrors the left pillar, forming the passenger's side windshield frame. It must withstand immense force during rollover collisions. The passenger's side grab handle is often bolted to this pillar. Water drain tubes for the sunroof typically run down through both the left and right A-pillars. If these tubes clog, water will seep onto the passenger floorboards.
Mechanic Glossary
A Pillar Right
The structural support post on the passenger's side of the vehicle that holds the windshield and roof frame.
Frequently Asked Questions
The wiring for the passenger side vanity mirror, the radio antenna cable in some models, and the passenger side sunroof drain tube.
Exposure to UV rays and road debris chipping the clear coat. The steep angle of the pillar receives high wind resistance and sun exposure.
Open the sunroof and locate the drain holes in the corners. Blow low-pressure compressed air down the tube, or feed a flexible weed-eater line through it to clear debris.