4WD TOYOTA TUNDRA 2021 Owners Manual (in English)

24
FEATURES & OPERATIONS
Push and turnTurn
Shifting between “2WD” and “4H”
Reduce speed to less than 62 mph, then turn control to “2WD” or “\
4H.”
Shifting between “4H” and “4L”
When stopped, shift to “N” position, then push and turn to “4L”\
from “4H.”
NOTE: For best fuel economy and performance under normal driving
conditions, keep in “2WD” position.
2WDHigh speed (2WD) Normal driving on dry hard-surfaced roads.
4HHigh speed (4WD) For driving only on roads that permit the tires to
slide, like off-road, icy or snow-covered roads.
4L
Low speed (4WD)
For maximum power and traction when climbing or descending steep
hills, off-road driving, and hard pulling in sand, mud or deep snow.
Turn
Two & four-wheel drive selector (if equipped)
The trailer brakes can be controlled by the Trailer brake controller via\
the 7-pin
connector. By selecting the type of brakes that are being used on the tr\
ailer
(electric or electric-over-hydraulic) and setting the gain for the con\
troller, the
manual TRAILER BRAKE OUTPUT slider is used to slow just the trailer. The\
vehicle
brake pedal will also slow down as well as stop the trailer when applied\
. Gain
values, manual brake outputs, trailer brake types and the trailer connec\
tion status
are displayed in the multi-information display.
Refer to the Owner’s Manual for more details.
“Tow/Haul” mode is ideal for use when carrying heavy loads. When t\
he TOW/HAUL
switch is pressed, throttle response and transmission control are optimi\
zed for the
high performance operation. As fuel economy is reduced while in “Tow/\
Haul” mode,
deactivating when driving without a load is recommended.
• Upshifts occur at higher engine speeds to expand the use of lower g\
ear ranges, enhancing power performance during towing and preventing repeated gear
changes.
• Downshifts occur at a greater accelerator pedal angle to allow the vehic\
le to stay
in a higher gear, reducing repeated gear changes.
• Downshifts occur at a lower accelerator pedal angle to allow the vehicle\
to stay in
a lower gear, enhancing towing ability.
• When the accelerator pedal is wide open, upshift timing is optimized to \
effectively
use the maximum engine power range available.
When Tow/Haul is engaged, the opening angle of the electronically contro\
lled
throttle is wider for any given accelerator pedal position than normal, \
enhancing
acceleration feeling and response.
• During uphill driving, the gear position is held to prevent repeated ups\
hifting.
• During downhill driving, downshifting to lower gears will occur to effec\
tively use
engine braking.
Refer to the Owner’s Manual for more details on this system before at\
tempting to
use it.
Floor shift type
Trailer brake controller (if equipped)
ENGINE CONTROL
ENHANCED SHIFT CONTROL
UPHILL/DOWNHILL SHIFT FEATURES
Manual TRAILER
BRAKE OUTPUT slider
Trailer
connector
indicator
Trailer brake type
GAIN (+/-) selection button
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25
Shifting between “2WD” and “4H”
Reduce speed to less than 62 mph, then turn control to “2WD” or “\
4H.”
Shifting between “4H” and “4L”
When stopped, shift to “N” position, then push and turn to “4L”\
from “4H.”
NOTE: For best fuel economy and performance under normal driving
conditions, keep in “2WD” position.
High speed (2WD) Normal driving on dry hard-surfaced roads.
High speed (4WD) For driving only on roads that permit the tires to
slide, like off-road, icy or snow-covered roads.
Low speed (4WD)
For maximum power and traction when climbing or descending steep
hills, off-road driving, and hard pulling in sand, mud or deep snow.
Two & four-wheel drive selector (if equipped)
The trailer brakes can be controlled by the Trailer brake controller via\
the 7-pin
connector. By selecting the type of brakes that are being used on the tr\
ailer
(electric or electric-over-hydraulic) and setting the gain for the con\
troller, the
manual TRAILER BRAKE OUTPUT slider is used to slow just the trailer. The\
vehicle
brake pedal will also slow down as well as stop the trailer when applied\
. Gain
values, manual brake outputs, trailer brake types and the trailer connec\
tion status
are displayed in the multi-information display.
Refer to the Owner’s Manual for more details.
TOW/HAUL switch (if equipped)
“Tow/Haul” mode is ideal for use when carrying heavy loads. When t\
he TOW/HAUL
switch is pressed, throttle response and transmission control are optimi\
zed for the
high performance operation. As fuel economy is reduced while in “Tow/\
Haul” mode,
deactivating when driving without a load is recommended.
• Upshifts occur at higher engine speeds to expand the use of lower g\
ear ranges, enhancing power performance during towing and preventing repeated gear
changes.
• Downshifts occur at a greater accelerator pedal angle to allow the vehic\
le to stay
in a higher gear, reducing repeated gear changes.
• Downshifts occur at a lower accelerator pedal angle to allow the vehicle\
to stay in
a lower gear, enhancing towing ability.
• When the accelerator pedal is wide open, upshift timing is optimized to \
effectively
use the maximum engine power range available.
When Tow/Haul is engaged, the opening angle of the electronically contro\
lled
throttle is wider for any given accelerator pedal position than normal, \
enhancing
acceleration feeling and response.
•
During uphill driving, the gear position is held to prevent repeated ups\
hifting.
• During downhill driving, downshifting to lower gears will occur to effec\
tively use
engine braking.
Refer to the Owner’s Manual for more details on this system before at\
tempting to
use it.
Floor shift type
System ON/OFF
System ON/OFF
Column shift type
ENGINE CONTROL
ENHANCED SHIFT CONTROL
UPHILL/DOWNHILL SHIFT FEATURES
OVERVIEW
FEATURES & OPERATIONS
TOYOTA SAFETY SENSE
SAFETY & EMERGENCY FEATURES
Manual TRAILER
BRAKE OUTPUT slider
MY21_Tundra_QRG_V2_ML_0709.indd 257/13/20 10:54 AM