traction control TOYOTA TUNDRA 2011 2.G Owners Manual

38
CAUTION
■General precautions while driving
Driving under the influence: Never drive your vehicle when under the influ-
ence of alcohol or drugs that have impaired your ability to operate your vehi-
cle. Alcohol and certain drugs delay reaction time, impair judgment and
reduce coordination, which could lead to an accident that could result in
death or serious injury.
Defensive driving: Always drive defensively. Anticipate mistakes that other
drivers or pedestrians might make and be ready to avoid accidents.
Driver distraction: Always give your full attention to driving. Anything that dis-
tracts the driver, such as adjusting controls, talking on a cellular phone or
reading can result in a collision with resulting death or serious injury to you,
your occupants or others.
■ General precaution regarding children’s safety
Never leave children unattended in the vehicle, and never allow children to
have or use the key.
Children may be able to start the vehicle or shift the vehicle into neutral.
There is also a danger that children may injure themselves by playing with
the windows, or other features of the vehicle. In addition, heat build-up or
extremely cold temperatures inside the vehicle can be fatal to children.

236
2-4. Using other driving systems
Four-wheel drive system
: If equipped
Use the front-wheel drive control switch to select the following
transfer modes.
*1: Vehicles with multi-information display
*2: Vehicles without multi-information display
2WD (high speed position, two-wheel drive)
Normal driving.
4H (high speed position, four-wheel drive)
Greater traction than two-wheel drive.
When you experience a loss of power, such as wheel slipping.The 4HI indicator will come on.
4L (low speed position, four-wheel drive)
Driving requiring maximum power and traction such as climbing or
descending steep hills, off-road driving and hard pulling in sand or mud,
etc.The 4LO indicator will come on.
*2*1

240
2-4. Using other driving systems
AUTO LSD system
The AUTO LSD system aids traction by using the traction control
system to control engine performance and braking when one of the
rear wheels begins to spin.
The system should be used only wh en one of the rear wheels spin-
ning occurs in a ditch or rough surface.
■ System operation
The system can be used on 2W D models and in 2WD mode on
4WD models.
The system is activated when dr iving at a speed under 62 mph
(100 km/h).
The AUTO LSD system will be ac tivated with the following two
procedures.
Press the VSC OFF switch
briefly.
At this time, the AUTO LSD
indicator will come on.
To turn off the system, push
the switch again.
Stop the vehicle completely,
and press the VSC OFF
switch for more than 3 sec-
onds.
At this time, the VSC OFF and
AUTO LSD indicators will
come on simultaneously.
To turn off the system, push
the switch again.

243
2-4. Using other driving systems
2
When driving
Driving assist systems
To help enhance driving safety and performance, the following sys-
tems operate automatically in res ponse to various driving situations.
Be aware, however, that these systems are supplementary and
should not be relied upon too heavi ly when operating the vehicle.
■ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly, or if
the brakes are applied while driving on a slippery road surface.
■Brake Assist
Generates an increased level of braking force after the brake pedal is
depressed, when the system detects a panic stop situation.
■VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or turning
on slippery road surfaces.
■Trailer Sway Control
Helps the driver to control trailer sway by selectively applying brake
pressure for individual wheels and reducing engine torque when trailer
sway is detected.
Trailer Sway Control is part of the VSC system and will not operate if
VSC is turned off or experiences a malfunction.
■ TRAC (Traction Control) for 2WD models and 2WD mode on
4WD models
Maintains drive power and prevents the rear wheels from spinning
when starting the vehicle or accelerating on slippery roads.
■A-TRAC (Active Traction Control) for 4WD mode on 4WD
models
Maintains drive power and prevents all wheels from spinning when
starting the vehicle or accelerating on slippery roads.

676 6-1. Specifications
■Treadwear
The treadwear grade is a comparative rating based on the wear
rate of the tire when tested under controlled conditions on a speci-
fied government test course.
For example, a tire graded 150 would wear one and a half (1 - 1/2)
times as well on the government course as a tire graded 100.
The relative performance of tires depends upon the actual conditions
of their use, however, and may depart significantly from the norm due
to variations in driving habits, service practices and differences in
road characteristics and climate.
■ Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C,
and they represent the tire’s ab ility to stop on wet pavement as
measured under controlled cond itions on specified government
test surfaces of asphalt and concrete.
A tire marked C may have poor traction performance.
Warning: The traction grade assigned to this tire is based on braking
(straight ahead) traction tests and does not include cornering (turn-
ing) traction.
■ Temperature A, B, C
The temperature grades are A (the highest), B, and C, represent-
ing the tire’s resistance to the generation of heat and its ability to
dissipate heat when tested under controlled conditions on a speci-
fied indoor laboratory test wheel.
Sustained high temperature can cause the material of the tire to
degenerate and reduce tire life, and excessive temperature can lead
to sudden tire failure.
The grade C corresponds to a level of performance which all passen-
ger car tires must meet under the Federal Motor Vehicle Safety Stan-
dard No. 109.
Grades B and A represent higher levels of performance on the labo-
ratory test wheel than the minimum required by law.

716
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
2WDTwo Wheel Drive
4WD Four Wheel Drive ABS Anti-Lock Brake System
ACC Accessory
AI-SHIFT Artificial Intelligence shifting ALR Automatic Locking Retractor
A-TRAC Active Traction Control
AUTO LSD Automatic Limited Slip Differential CAL Calibration
CRS Child Restraint System
ECU Electronic Control Unit
EDR Event Data Recorder ELR Emergency Locking Retractor
FFV Flexible Fuel Vehicle
GAWR Gross Axle Weight Rating
GCWR Gross Combination Weight Rating
GVWR Gross Vehicle Weight Rating I/M Emission inspection and maintenance
INFO Information
LATCH Lower Anchors and Tethers for Children LED Light Emitting DiodeLT Light truck
M + S Mud + Snow MMT Methylcy clopentadienyl Manganese Tricarbonyl
MTBE Methyl Tertiary Butyl Ether
OBD On Board Diagnostics
PWR Power

717
RES Resume
RSCA Roll Sensing of Curtain shield Airbags SRS Supplemental Restraint System
TIN Tire Identification Number
TPMS Tire Pressure Warning System TRAC Traction Control
TWI Treadwear indicators
TWR Trailer Weight Rating VIN Vehicle Identification Number
VSC Vehicle Stability Control
ABBREVIATIONSMEANING

718
Alphabetical index
Alphabetical index
A/C ..................................... 292, 301
ABS ........................................... 243
Accessory meter ...................... 209
Active traction control system .................................... 243
Air conditioning filter............... 560
Air conditioning system Air conditioning filter .............. 560
Automatic air conditioning system ................................ 292
Manual air conditioning system ................................ 301
Airbags
Airbag operating conditions............................ 122
Airbag precautions for your
child .................................... 126
Airbag warning light............... 600
Curtain shield airbag operating conditions............ 123
Curtain shield airbag precautions ......................... 126
Front passenger occupant classification system ........... 135
General airbag
precautions ......................... 126
Locations of airbags .............. 119
Modification and disposal of airbags ............................ 130
Passenger airbag off switch .......................... 131, 150
Proper driving posture ........................ 117, 126
Roll sensing of curtain shield airbag off switch .................. 133
Side airbag operating conditions............................ 123
Side airbag precautions ........ 126
SRS airbags .......................... 119 Alarm......................................... 114
Antenna ............................ 323, 516
Anti-lock brake system
ABS warning light.................. 600
Anti-lock brake system .......... 243
Armrest ..................................... 496
Audio input ............................... 360
Audio remote controls ............ 362
Audio system Antenna................................. 323
Audio input ............................ 360
Audio visual input .................. 407
AUX port ............................... 360
A/V input port ........................ 407
CD player/changer ................ 326
DVD player............................ 390
iPod ....................................... 343
MP3/WMA disc ..................... 335
Optimal use ........................... 356
Portable music player ........... 360
Radio..................................... 318
Rear seat entertainment
system ................................ 381
Steering wheel audio switch.................................. 362
Type ...................................... 314
USB memory......................... 349
Audio visual input.................... 407
AUTO LSD system ................... 240
Automatic light control system .................................... 215
Automatic transmission Automatic transmission ......... 184
If the shift lever cannot be shifted from P ..................... 630
TOW/HAUL switch ................ 187
AUX port ................................... 360
Auxiliary boxes ....................... 473
A/V input port ........................... 407A

726 Alphabetical index
Tachometer............................... 192
TailgateRemoving the tailgate .............53
Tailgate ...................................52
Tail lights
Replacing light bulbs ............. 582
Switch.................................... 212
Wattage ................................. 667
Talk switch................................ 422
Telephone switch ..................... 422
Theft deterrent system Alarm ..................................... 114
Engine immobilizer system ... 112
Tire inflation pressure ............. 554
Tire information
Glossary ................................ 677
Size ....................................... 674
Tire identification number ...... 673
Uniform tire quality grading ................................ 675
Tires Chains ................................... 262
Checking ............................... 547
Identification number ............. 673
If you have a flat tire .............. 612
Inflation pressure........... 554, 665
Information ............................ 672
Inflation pressure sensor ....... 548
Replacing .............................. 612
Rotating tires ......................... 547
Size ....................................... 665
Snow tires ............................. 261
Tire pressure warning reset switch ......................... 548
Tire pressure warning
system ........................ 547, 602
Warning light ......................... 601
Tissue pocket ........................... 465
Tools ......................................... 612
Total load capacity................... 259
TOW/HAUL switch ................... 187 Towing
Bumper towing ...................... 277
Dinghy towing ....................... 288
Emergency towing ................ 589
Fifth wheel trailer................... 275
Trailer towing ........................ 265
Traction control ....................... 243
TRAC ......................................... 243
Trip information ....................... 203
Trip meter ................................. 196
Turn signal lights Replacing light bulbs ..... 579, 582
Switch ................................... 189
Wattage................................. 667
Vanity lights Vanity lights........................... 479
Wattage................................. 667
Vanity mirrors .......................... 479
Vehicle identification
number ................................... 654
Vehicle stability control .......... 243
VSC ........................................... 243
Warning buzzers
Brake system ........................ 599
Key reminder................... 50, 603
Open door ..................... 601, 603
Seat belt reminder......... 601, 603
Warning lights
ABS ....................................... 600
Airbag system ....................... 600
Anti-lock brake system .......... 600
Automatic transmission fluid temperature................. 600
Brake assist system .............. 600
Brake system ........................ 599
Charging system .... ............... 599
Electronic engine control
system ................................ 600
Engine oil pressure ............... 599T
V
W