Toyota 2006 4runner Owner's Manual page 178

Four−wheel drive models only—
Pushing the center differential
switch automatically turns the vehicle
stability control system off. At this
time, the "VSC OFF" indicator comes
on with the center differential lock indi-
cator light.
The "VSC OFF" indicator light comes on
for a few seconds when the ignition key
is turned to "ON". It will come on again
when you push the center differential lock
switch to turn off the system.
178
'06 4Runner_U (L/O 0508)
In the following cases, contact your Toyota
dealer:
D
The indicator light does not come on
when the ignition key is turned to
"ON".
D
The indicator light remains on after the
ignition key is turned to "ON".
D
The indicator light comes on when the
system is on while driving.
NOTICE
Make sure that the center differential
lock indicator light goes off before
normal driving.
lock
"VSC TRAC" warning light
This light warns that there is a problem
somewhere in the following.
D
Vehicle stability control system
D
Traction control system
(two−wheel drive models)
D
Active traction control system
(four−wheel drive models)
D
"AUTO LSD" system
(two−wheel drive models)
D
Downhill assist control system
(four−wheel drive models)
D
Hill−start assist control system