Traction Control; Electronic Brake-Force Distribution - Toyota TUNDRA - BROCHURE 2011 Brochure

SAFETY
WITHOUT TRAC WITH TRAC
Toyota's Star Safety System™ is a combination of fi ve
safety features that come standard with every Tundra:
Vehicle Stability Control ( VSC ) , Traction Control ( TRAC ) ,
1
Anti-lock Brake System ( ABS ) with Electronic Brake-
force Distribution ( EBD ) and Brake Assist ( BA ) .
2 These
features are designed for one purpose: to help keep the
driver in control of the vehicle at all times. Because when
it comes to the well-being of you and your passengers,
Toyota has raised the standard.
1
VEHICLE STABILITY CONTROL (VSC)
VSC helps prevent two factors that frequently cause
Possible Scenario
drivers to lose traction during cornering: front wheelslip
and rear wheelslip. VSC monitors your steering
angle and compares it to the direction in which your
vehicle is actually traveling. If VSC detects a loss
of traction, two things happen to help correct the
problem: First, engine output is reduced; then, brake
force is applied to individual wheels as needed.

TRACTION CONTROL

(TRAC)
TRAC helps maintain traction on wet, icy, loose or uneven
surfaces. Like VSC, TRAC applies braking individually
and reduces engine output to help assist the driver with
control of the vehicle.
(ABS)
4-WHEEL ANTI-LOCK BRAKE SYSTEM
ABS technology helps ensure that you're able to
continue steering during emergency braking. An ABS-
equipped vehicle helps keep the brakes from locking
up by "pulsing" the brake of each wheel independently,
more rapidly than would be humanly possible. Since
the system repeatedly releases the brake pressure for
fractions of a second, the wheels never stop rotating,
which helps the vehicle avoid going into a skid and helps
the driver retain steering control.
ELECTRONIC BRAKE-FORCE
DISTRIBUTION (EBD)
Electronic Brake-force Distribution (EBD) helps keep
the vehicle balanced when braking. If you have to stop
abruptly, momentum causes the vehicle to tilt forward
and reduces the brake force of the rear tires. EBD
responds to sudden stops by redistributing brake force.
Wheels with more braking effectiveness receive more
brake force; wheels with less effectiveness receive less
brake force. This helps prevent brake lockup. EBD is
especially helpful when carrying cargo. Sensors recognize
the extra load the cargo puts on the rear axle, so brake
pressure on the rear wheels is increased because the
extra weight improves braking effectiveness.
BRAKE ASSIST (BA) 2
In emergency braking situations, Brake Assist ( BA )
applies additional brake pressure so you can take full
advantage of ABS. A driver in a panic situation could fail
to apply enough pressure to the brake pedal. Fortunately,
Brake Assist ( BA ) can detect sudden or "panic" braking,
so the system applies additional pressure to help
prevent a collision.
1 See footnote 14 in Disclaimers section. 2 See footnote 15 in Disclaimers section.