traction control Acura TL 2007 Owner's Manual

This indicator normally comes on for
a few seconds when you turn the
ignition switch to the ON (II)
position. This
indicator has three functions:
Itcomesonasareminderthatyou
have turned off the vehicle
stability assist (VSA) system.
It flashes when VSA is active (see
page ).
It comes on along with the VSA
system indicator if there is a
problem with the VSA system.
This indicator normally comes on for
a few seconds when you turn the
ignition switch to the ON (II)
position. See page for more
info rmation on the VSA system. This
indicator comes on when you
set the cruise control. See page
for information on operating the
cruise control.
Ifitcomesonandstaysonatany
other
time, or if it does not come on
wh en you turn the ignition switch to
the ON (II) position, there is a
problem with the VSA system. Take
your vehicle to a dealer to have it
checked. Without VSA, your vehicle
still has normal driving ability, but
will not have VSA traction and
stability enhancement. See page
for more information on the
VSA system. This
indicator comes on when you
turn on the cruise control system by
pressing the CRUISE button (see
page ).
1.
2.
3.
264 264
264 184
184
Vehicle Stability Assist
(VSA ) System Indicator
VSA A ctivation Indicator
Cruise Main Indicator
Cruise Control Indicator
Instrument Panel Indicators
Inst rument s and Cont rols
61
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The vehicle stability assist (VSA)
system helps to stabilize the vehicle
during cornering if the vehicle turns
more or less than desired. It also
assists you in maintaining traction
while accelerating on loose or
slippery road surfaces. It does this
by regulating the engine’s output,
and by selectively applying the
brakes.
When VSA activates, you may notice
that the engine does not respond to
the accelerator in the same way it
does at other times.
The VSA system cannot enhance the
vehicle’s driving stability in all
situations and does not control your
vehicle’s entire braking system. It is
still your responsibility to drive and
corner at reasonable speeds and to
leave a sufficient margin of safety. If
the indicator does not come on
when the ignition switch is turned to
the ON (II) position, there may be a
problem with the VSA system. Have
your dealer inspect your vehic le as
soon as possible.
If this indicator comes on while
driving, pull to the side of the road
when it is safe, and turn off the
engine. Reset the system by
restarting the engine. If the VSA
system indicator stays on, or comes
back on while driving, have the VSA
system inspected by your dealer. When VSA activates, you will see the
VSA activation indicator blink (see
page ). On manual transmission models, if
the VSA system is of f and you
accelerate f rom a stop, the vehicle
may pull, and it may take extra effort
to return the steering wheel to
center.
Without VSA, your vehicle will have
normal braking and cornering ability,
but it will not have VSA traction and
stability enhancement.
61
VSA System Indicator VSA A ctivation Indicator
Vehicle Stability Assist (VSA) System
264
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Driving with varying tire or wheel
sizes may cause the VSA to
malfunction. When replacing tires,
make sure they are the same size
and type as your original tires (see
page ).
If you install winter tires, make sure
they are the same size as those that
were originally supplied with your
vehicle. Exercise the same caution
during winter driving as you would if
your vehicle was not equipped with
VSA.
This switch is under the lef t vent.
Press it to turn the VSA system on
and off.
When VSA is off, the VSA activation
indicator comes on as a reminder.
VSA is turned on every time you
start the engine, even if you turned it
off the last time you drove the
vehicle.
In certain unusual conditions when
your vehicle gets stuck in shallow
mud or f resh snow, it may be easier
to free it with the VSA temporarily
switched of f . When the VSA system
is of f , the traction control system is
alsooff.Youshouldonlyattemptto
f ree your vehicle with the VSA of f if
you are not able to f ree it when the
VSA is on.
Immediately af ter f reeing your
vehicle, be sure to switch the VSA on
again. We do not recommend driving
your vehicle with the VSA and
traction control systems switched off.
306
VSA Of f Switch
VSA and Tire Sizes
Vehicle Stability Assist (VSA) System
Driving
265
VSA OFF SWITCH
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Thediagramsinthissectiongive
you the dimensions and capacities of
your vehicle and the locations of the
identif ication numbers. It also
includes inf ormation you should
know about your vehicle’s tires and
emissions control systems.
................
Identif ication Numbers .336
................................
Specif ications .338
DOT Tire Quality Grading ......................
(U.S. Vehicles) .340
.................................
Treadwear .340
......................................
Traction .340
.............................
Temperature .341
.................................
Tire Labeling .342
Tire Pressure Monitoring System (TPMS) Required Federal ............................
Explanation .343 .......................
Emissions Controls .345
.....................
The Clean Air Act .345
Crankcase Emissions Control ....................................
System .345
Evaporative Emissions Control ....................................
System .345
Onboard Ref ueling Vapor ................................
Recovery .345
...
Exhaust Emissions Controls . 346
....................
PGM-FI System .346
Ignition Timing Control ................................
System .346
Exhaust Gas Recirculation ...................
(EGR) System . 346
Three Way Catalytic ...........................
Converter .346
....................
Replacement Parts . 346
..
Three Way Catalytic Converter . 347
..............
State Emissions Testing . 348
T echnical Inf ormation
Technical Inf ormation
335
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The tires on your vehicle meet all
U.S. Federal Saf ety Requirements.
All tires are also graded f or
treadwear, traction, and temperature
perf ormance according to
Department of Transportation
(DOT) standards. The f ollowing
explains these gradings.
Quality grades can be f ound where
applicable on the tire sidewall
between the tread shoulder and the
maximum section width. For
example:
All passenger car tires must conf orm
to Federal Saf ety Requirements in
addition to these grades. The treadwear grade is a compara-
tive rating based on the wear rate of
the tire when tested under controlled
conditions on a specif ied government
test course. For example, a tire
graded 150 would wear one and one-
half (1 1/2) times as well on the
government course as a tire graded
100. The relative perf ormance of
tires depends upon the actual condi-
tions of their use, however, and may
depart signif icantly f rom the norm
due to variations in driving habits,
service practices, and dif f erences in
road characteristics and climate.
The traction grades, f rom highest to
lowest, are AA, A, B, and C. Those
grades represent the tire’s ability to
stop on wet pavement as measured
under controlled conditions on
specif ied government test surf aces
of asphalt and concrete. A tire
marked C may have poor traction
perf ormance.
Warning: The traction grade
assignedtothistireisbasedon
straight-ahead braking traction tests,
and does not include acceleration,
cornering, hydroplaning, or peak
traction characteristics.
Unif orm T ire Quality Grading
T readwear 200
Traction AA
Temperature A Treadwear
Traction AA, A, B, C
DOT Tire Quality Grading (U.S. Vehicles)
340
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