traction control Acura MDX 2005 Owner's Manual

The Vehicle Stability Assist 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 surf aces. 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. There may also
be some unusual noise f rom the
modulator.When VSA activates, you will see the
VSA activation indicator blink. There
may also be some unusual noise
f rom the modulator.
If the VSA system indicator comes
on while driving, pull to the side of
theroadwhenitissafe,andturnoff
the engine. Reset the system by
restarting the engine. If the VSA
system indicator stays, or comes
back on while driving, have the VSA
system inspected by your dealer.
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.
CONT INUED
VSA A ctivation Indicator VSA System Indicator
Vehicle Stability Assist (VSA) System
Driving
211

Your vehicle has been designed to
primarily carry passengers and their
cargo. You can also use it to tow a
trailer if you caref ully observe the
load limits, use the proper equipment,
and f ollow the guidelines in this
section.
Be sure to read theon page
if you plan to tow of f paved
surf aces.
The maximum weight of the trailer
andeverythinginoronitdependson
the number of occupants in your
vehicleandthetypeof trailerbeing
towed (see page ).
Towing a load that is too heavy can
seriously af f ect your vehicle’s
handling and perf ormance.The weight that the tongue of a f ully
loaded trailer puts on the hitch
shouldbe5to10percentof thetotal
trailer weight f or boat trailers, and 8
to 15 percent of total trailer weight
f or all other trailers. (See page
f or limits f or your towing
situation). Too much tongue load
reduces front-tire traction and
steering control. Too little tongue
load can make the trailer unstable
and cause it to sway.
223
215215
Driving Of f -
Highway Guidelines section
Towing Weight Limits
Load Limit
T ot al T railer Weight Tongue Load
Driving
213
Exceeding any load limit or
improperly loading your vehicle
and trailer can cause a crash in
which you can be seriously hurt
or killed.
Check the loading of your
vehicle and trailer carefully
beforestartingtodrive.

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 . 282
................................
Specif ications .284
..........
DOT Tire Quality Grading . 286
Unif orm Tire Quality ..................................
Grading .286
.................................
Treadwear .286
......................................
Traction .286
.............................
Temperature .287
.................................
Tire Labeling .288 .......................
Emissions Controls .289
.....................
The Clean Air Act .289
Crankcase Emissions Control ....................................
System .289
Evaporative Emissions Control ....................................
System .289
Onboard Ref ueling Vapor ................................
Recovery .289
...
Exhaust Emissions Controls . 290
....................
PGM-FI System .290
Ignition Timing Control ................................
System .290
Exhaust Gas Recirculation ...................
(EGR) System . 290
Three Way Catalytic ...........................
Converter .290
....................
Replacement Parts . 290
..
Three Way Catalytic Converter . 291
..............
State Emissions Testing . 292
T echnical Inf ormat ion
T echnical Inf ormation
281

µ
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 vehicle 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 T ire Quality Grading (U.S. Vehicles)
286