Toyota 4runner 2009 User Manual page 181

When the active traction control system is operating
When the rear differential is locked (vehicles with the rear differential
n
lock system)
The active traction control system is activated only when the vehicle speed
is less than 4 mph (6 km/h).
Sounds and vibrations caused by the active traction control system
n
l A sound may be heard from the engine compartment when the engine is
started or just after the vehicle begins to move. This sound does not indi-
cate that a malfunction has occurred in the system.
l Vibrations may be felt through the vehicle body and steering. It may
occur when the system is operating.
n If the brake system overheats
The system will cease operation and a buzzer will sound to alert the driver.
Stop the vehicle in a safe place. (There is no problem with continuing normal
driving.)
CAUTION
n The active traction control system may not operate effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the active traction control system is operating.
Do not drive the vehicle in conditions where stability and power may be lost.
2-4. Using other driving systems
If all wheels spin, the slip indica-
tor flashes to indicate that the
active traction control system
have been engaged.
2
183