One problem related to door has been reported for the 2003 Toyota 4Runner. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Toyota 4Runner based on all problems reported for the 2003 4Runner.
Aafter the overnight temporature dropped befow freezing, both of my 2003 Toyota 4 runner rear doors froze to their wheel wells due to a minor accumulation of mud in the wheel wells (less than 1/4 inch thick) where the door bottom extends. Although the door latches functioned properly, and the doors could be 'sprung' away from the frame at the top, the bottom remained frozen to the wheel well prohibiting opening. Emergency egrees would have been impossible.