This article is from the Toyota Tundra FAQ, by Steve Yee with numerous contributions by others.
This is a common complaint from Toyota owners. The seat belts in most every
line that Toyota makes (Camry, T-100, Tundra, Lexus, etc) do not have springs
that are powerful enough to pull the seat belt back into place. In addition,
the seat belt guides tend to be very narrow, allowing various gunk and debris
to possibly foul the guide.
 
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