1802005 TACOMA from Mar. ’05 Prod. (OM35862U)
The downhill assist control system is a
system that assists the deceleration of
the engine brake when you drive down
a steep hill. When you are driving down
a hill with the front drive control switch
knob in the “L4” position, push the
“DAC” switch to limit the vehicle’s ac-
celeration. If the vehicle is traveling at
a speed of 25 km/h (15 mph) or less,
you can descend at a constant speed.
CAUTION
Do not rely excessively on the down-
hill assist control system. It may not
be able to maintain a low speed over
road surfaces or off road surfaces on
which sliding can easily occur, such
as extremely steep slopes or icy or
muddy roads.
TO ACTIVATE THE DOWNHILL ASSIST
CONTROL SYSTEM1. Turn the front drive control switch knob to the “L4” position.
The system does not operate when the
front drive control switch knob is in the
“H2” or “H4” position, or the rear differen-
tial is locked.
2. In order to make full use of the en- gine brake, putting the transmission
in “L” or “2” is recommended.
The system will operate even if the trans-
mission selector lever is in “D”, “4”, “3”
or “N”. However, when it is in “L” or “2”
the engine brake can also be utilized en-
abling the system to operate more effec-
tively.
LS17016
3. Push the “DAC” switch to turn the system on. The downhill assist con-
trol system indicator light on the in-
strument panel will come on.
If the downhill assist control system indi-
cator light flashes, one of the following
may be the cause:
The selector lever is in the “N” posi-
tion.
The front drive control switch knob is
in the “H2” or “H4” position.
The rear differential is locked.
If the indicator light does not come on
when the switch is pushed, contact your
Toyota dealer.
Downhill assist control system
1822005 TACOMA from Mar. ’05 Prod. (OM35862U)
LS17017
If there is any abnormality in the sys-
tem, the “VSC TRAC” warning light will
come on. When the “DAC” switch is
pushed, the downhill assist control sys-
tem indicator light also flash.
If the “VSC TRAC” warning light comes
on, there may be an abnormality in any
of the following system in addition to the
downhill assist control system.
Hill−start assist control system
Traction control system
Vehicle stability control system
Downhill assist control system “VSC TRAC” warning light
When the system is normal and the igni-
tion key is turned to “ON”, the warning
light will come on and will go off after a
few seconds.
It is not a malfunction that the warning
light may stay on for 60 seconds after the
ignition key is turned to the “ON” position.
Depressing the brake pedal repeatedly
may turn on the light. It is normal if it
goes out after a few seconds.
If the warning light comes on while driv-
ing, the system does not work. However,
as normal braking operates when being
applied, it is no problem to continue your
driving.
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.
The hill start assist control system as-
sists you in starting to move up a
steep or slippery hill. When you start
to move up the hill slope, the system
helps to prevent the vehicle from roll-
ing backward in the interval while you
move your foot from the brake pedal to
the accelerator pedal.
CAUTION
Do not rely excessively on the h
ill
start assist control system. The ve-
hicle may not be able to start
smoothly on road surfaces or off
road surfaces such as extremely
steep slopes or icy roads, on which
sliding can occur very easily.
Do not use the hill start assist con-
trol system to stop the vehicle. This
system is not designed as a func-
tion for stopping the vehicle on a
uphill slope.
Hill start assist control
system (automatic
transmission only)