This article is from the Toyota Tundra FAQ, by Steve Yee with numerous contributions by others.
Some owners have complained about the Tundra not starting properly, and it
would take two or three attempts to start the vehicle.
According to posts, the Tundra onboard computer requires an extra second to
complete diagnostics and start the ignition sequence. This is normal and will
require owners to keep the key in the start position for a little bit longer
than most people are used to.
 
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