Toyota TUNDRA-2005 Owner's Manual page 194

"VSC TRAC" warning light
This light warns that there is a problem
somewhere in the following.
"
Traction control system
"
Vehicle stability control system
"
"AUTO LSD" system
When the system is normal and the igni-
tion key is turned to "ON", the light will
come on and will go off after a few sec-
onds.
It is not a malfunction that the warning
light may stay on for 60 seconds after the
ignition key is turned to "ON".
Depressing the brake pedal repeatedly
may turn on the light. It is normal if it
goes out after a few seconds.
If the "VSC TRAC" warning light and slip
indicator light comes on while driving, the
traction control system does not work.
However, as the brakes operate normally
when applied, it is no problem to continue
your driving.
'05 TUNDRA_U (L/O 0409)
In the following cases, contact your Toyota
dealer:
"
The warning light does not come on
after the ignition key is turned to "ON".
"
The warning light remains on after the
ignition key is turned to "ON".
"
The warning light comes on while driv-
ing.
"AUTO LSD" system
The "AUTO LSD" system aids traction
by using the traction control system to
control engine performance and braking
when one of the rear wheels begins to
spin.
This system is used only when wheel
spinning occurs in a ditch or rough
surface.
This system is effective in case one of
the rear wheels is spinning.
2005 TUNDRA from Sep. '04 Prod. (OM34432U)
193