TOYOTA TUNDRA 2012 2.G Owners Manual

691
6-1. Specifications
6
Vehicle specifications
Occupant distributionDistribution of occupants in a vehicle as speci-
fied in the third column of Table 1
* below
Production options
weight
The combined weight of installed regular pro-
duction options weighing over 5 lb. (2.3 kg) in
excess of the standard items which they
replace, not previously considered in curb
weight or accessory weight, including heavy
duty brakes, ride levelers, roof rack, heavy duty
battery, and special trim
RimA metal support for a tire or a tire and tube
assembly upon which the tire beads are seated
Rim diameter
(Wheel diameter)Nominal diameter of the bead seat
Rim size designationRim diameter and width
Rim type designationThe industry manufacturer’s designation for a
rim by style or code
Rim widthNominal distance between rim flanges
Vehicle capacity
weight (Total load
capacity)The rated cargo and luggage load plus 150 lb.
(68 kg) times the vehicle’s designated seating
capacity
Vehicle maximum load
on the tire
The load on an individual tire that is determined
by distributing to each axle its share of the
maximum loaded vehicle weight, and dividing
by two
Vehicle normal load
on the tire
The load on an individual tire that is determined
by distributing to each axle its share of curb
weight, accessory weight, and normal occu-
pant weight (distributed in accordance with
Ta b l e 1
* below), and dividing by two
Weather sideThe surface area of the rim not covered by the
inflated tire
Tire related termMeaning

692 6-1. Specifications
Bead
The part of the tire that is made of steel wires,
wrapped or reinforced by ply cords and that is
shaped to fit the rim
Bead separationA breakdown of the bond between components
in the bead
Bias ply tire
A pneumatic tire in which the ply cords that
extend to the beads are laid at alternate angles
substantially less than 90 degrees to the cen-
terline of the tread
CarcassThe tire structure, except tread and sidewall
rubber which, when inflated, bears the load
ChunkingThe breaking away of pieces of the tread or
sidewall
CordThe strands forming the plies in the tire
Cord separationThe parting of cords from adjacent rubber com-
pounds
CrackingAny parting within the tread, sidewall, or inner-
liner of the tire extending to cord material
CT
A pneumatic tire with an inverted flange tire
and rim system in which the rim is designed
with rim flanges pointed radially inward and the
tire is designed to fit on the underside of the
rim in a manner that encloses the rim flanges
inside the air cavity of the tire
Extra load tire
A tire designed to operate at higher loads and
at higher inflation pressures than the corre-
sponding standard tire
GrooveThe space between two adjacent tread ribs
Innerliner
The layer(s) forming the inside surface of a
tubeless tire that contains the inflating medium
within the tire
Innerliner separationThe parting of the innerliner from cord material
in the carcass
Tire related termMeaning

693
6-1. Specifications
6
Vehicle specifications
Intended outboard
sidewall
(a)The sidewall that cont
ains a whitewall, bears
white lettering, or bears manufacturer,
brand, and/or model name molding that is
higher or deeper than the same molding on
the other sidewall of the tire, or
(b)The outward facing sidewall of asymmetrical tire that has a particular side that must
always face outward when mounted on a
vehicle
Light truck (LT) tire
A tire designated by its manufacturer as prima-
rily intended for use on lightweight trucks or
multipurpose passenger vehicles
Load ratingThe maximum load that a tire is rated to carry
for a given inflation pressure
Maximum load ratingThe load rating for a tire at the maximum per-
missible inflation pressure for that tire
Maximum permissible
inflation pressureThe maximum cold inflation pressure to which
a tire may be inflated
Measuring rimThe rim on which a tire is fitted for physical
dimension requirements
Open spliceAny parting at any junction of tread, sidewall, or
innerliner that extends to cord material
Outer diameterThe overall diameter of an inflated new tire
Overall width
The linear distance between the exteriors of
the sidewalls of an inflated tire, including eleva-
tions due to labeling, decorations, or protective
bands or ribs
Passenger car tire
A tire intended for use on passenger cars, mul-
tipurpose passenger vehicles, and trucks, that
have a gross vehicle weight rating (GVWR) of
10,000 lb. or less
PlyA layer of rubber-coated parallel cords
Tire related termMeaning

694 6-1. Specifications
Ply separationA parting of rubber compound between adja-
cent plies
Pneumatic tire
A mechanical device made of rubber, chemi-
cals, fabric and steel or other materials, that,
when mounted on an automotive wheel, pro-
vides the traction and contains the gas or fluid
that sustains the load
Radial ply tire
A pneumatic tire in which the ply cords that
extend to the beads are laid at substantially 90
degrees to the centerline of the tread
Reinforced tire
A tire designed to operate at higher loads and
at higher inflation pressures than the corre-
sponding standard tire
Section width
The linear distance between the exteriors of
the sidewalls of an inflated tire, excluding ele-
vations due to labeling, decoration, or protec-
tive bands
SidewallThat portion of a tire between the tread and
bead
Sidewall separationThe parting of the rubber compound from the
cord material in the sidewall
Snow tire
A tire that attains a traction index equal to or
greater than 110, compared to the ASTM E-
1136 Standard Reference Test Tire, when
using the snow traction test as described in
ASTM F-1805-00, Standard Test Method for
Single Wheel Driving Traction in a Straight Line
on Snow-and Ice-Covered Surfaces, and which
is marked with an Alpine Symbol ( ) on at
least one sidewall
Te s t r i m
The rim on which a tire is fitted for testing, and
may be any rim listed as appropriate for use
with that tire
Tire related termMeaning

695
6-1. Specifications
6
Vehicle specifications
*:Table 1
 Occupant loading and distri bution for vehicle normal load
for various designated seating capacities
TreadThat portion of a tire that comes into contact
with the road
Tread ribA tread section running circumferentially
around a tire
Tread separationPulling away of the tread from the tire carcass
Treadwear indicators
(TWI)The projections within the principal grooves
designed to give a visual indication of the
degrees of wear of the tread
Wheel-holding fixtureThe fixture used to hold the wheel and tire
assembly securely during testing
Designated seating
capacity, Number of occupants Vehicle normal load,
Number of occupantsOccupant distribution in a normally loaded vehicle
2 through 422 in front
5 through 1032 in front, 1 in second seat
11 through 155
2 in front, 1 in second
seat, 1 in third seat, 1 in fourth seat
16 through 207
2 in front, 2 in second
seat, 2 in third seat, 1 in fourth seat
Tire related termMeaning

696
6-2. Customization
Customizable features
ItemFunctionDefault settingCustomizedsetting
Wireless
remote con-
trol
(
P. 46) Wireless remote control ON OFF
Unlocking operation
Driver’s door
unlocked in one step, all doors
unlocked in two steps All doors
unlocked in one step
Automatic door lock
function to be activated
if door is not opened
after being unlocked ON OFF
Time elapsed before
automatic door lock
function is activated if
door is not opened after
being unlocked 60 seconds
0 seconds
30 seconds
120 seconds
Operation signal
(Emergency flashers) ON OFF
Operation signal
(Buzzer) ON OFF
Panic function ON OFF
Buzzer sounds when
pushing LOCK with any
door not closed ON OFF
Your vehicle includes a variety of electronic features that can be per-
sonalized to your preferences.
Programming these preferences
requires specialized equipment and may be performed by an autho-
rized Toyota dealership.
Some function settings are changed simultaneously with other functions
being customized. Contact your Toyota dealer for further details.

697
6-2. Customization
6
Vehicle specifications
Door lock
(
P. 49) Speed-detecting auto-
matic door lock function
ON OFF
Opening driver’s door
unlocks all doors. OFF ON
Shifting levers to “P”
unlocks all doors. ON OFF
Shifting levers to posi-
tion other than “P” locks
all doors. OFF ON
Unlocking using a key Driver’s door
unlocked in one step, all doors
unlocked in two steps All doors
unlocked in one step
Moon roof
( P. 105) Door key linked opera-
tion
Open and closeOpen only
Close only OFF
Linked operation of
components when door
key is used Slide only Tilt only
Automatic
light off
system
( P. 210) Light sensor sensitivity Level 3 Level 1 to 5
Time elapsed before
headlights automati-
cally turn off after doors
are closed
30 seconds0 seconds
60 seconds
90 seconds
ItemFunctionDefault settingCustomized setting

698 6-2. Customization
ItemFunctionDefault settingCustomizedsetting
Illumination
(
P. 455) Time elapsed before
lights turn off
15 seconds7.5 seconds
30 seconds
Operation after the
engine is off ON OFF
Operation when the
doors are unlocked ON OFF
Seat Belt
Reminder
Buzzer
(
P. 611) Vehicle speed linked
seat belt reminder
buzzer
ON OFF

699
6-2. Customization
6
Vehicle specifications
Items to initialize
ItemWhen to initializeReference
Moon roof
• After reconnecting or changing the battery
• After changing a fuse
P. 105
Maintenance dataAfter the maintenance is per-
formedP. 533
Tire pressure warning sys-
tem
• When rotating the tires on vehi- cles differing with front and rear
tire inflation pressures.
• When changing the tire inflation pressure by changing traveling
speed or load weight, etc.
• When changing the tire size.
P. 558
The following items must be initia lized for normal system operation
in cases such as after the battery is reconnected, or maintenance is
performed on the vehicle.

700 6-2. Customization