engine ACURA NSX 2021 Service Manual

325Continued
Driving
When Driving
Turning on the Power
1.Make sure the parkin g brake is applied.
u The electric parking brake indicator
comes on for 15 seconds when you pull
up the electric parking brake switch.
2. Depress the brake pedal.1Turning on the Power
Keep your foot firmly on the brake pedal when
starting the power system.
The engine is harder to st art in cold weather and in
thinner air found at altit udes above 8,000 feet (2,400
meters).
When turning on the power system in cold weather,
turn off all electrical accessories such as the lights,
climate control system, and rear defogger in order to
reduce 12-volt battery drain.
If the exhaust system sounds abnormal or you can
smell exhaust gas inside the vehicle, have your vehicle
checked by an authorized Acura NSX dealer. There
may be a problem with the engine or exhaust system.
Electric Parking
Brake Switch
Brake Pedal
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uuWhen Driving uTurning on the Power
326
Driving
3. Press the ENGINE START/STOP button
without depressing the accelerator pedal.
u The Ready To Drive message appears
on the driver information interface.
u When the ambient temperature is
extremely low, the ve hicle does not move
until certain conditions are met.
A warning message appears instead of
Ready To Drive .
2Driver Information Interface
Warning and Information Messages
P. 94
u If the High Voltage battery is fully ch arged, the gasoline engine may not start.
u The gasoline engine starts either according to the temperature of the engine or
when the High Voltage batte ry charge level is low.
u Regardless of the High Voltage battery char ge level, the gasoline engine always
starts.
u Gasoline engine starts with a louder sound than QUIET mode.
When engine temperature or High Volt age battery temperature are low, or
when High Voltage battery charge level is low, gasoline engine starts at the
same sound level as QUIET mode.
You can turn the power system off when the vehicle is completely stopped.
1. Select
(P.
2. Press the ENGINE START/STOP button.
1Turning on the Power
The immobilizer system pr otects your vehicle from
theft. If an improperly code d key (or other device) is
used, the power system does not activate. 2 Immobilizer System P. 126
Bring the keyless access remote close to the ENGINE
START/STOP button if the batte ry in the keyless
access remote is weak.
2 If the Keyless Access Remote Battery is
Weak P. 450
The power system may not activate if the keyless
access remote is subjecte d to strong radio waves.
Do not hold the ENGINE START/STOP button to
start the power system.
If the power system does not start, wait at least 30
seconds before trying again.
You can set the Integrated Dynamics System mode to
be selected when you set the power mode to ON.
2 Customized Features P. 248
■Stopping the Power System
When the Integrated Dynamics System is in QUIET mode
When the Integrated Dynamics System is in SPORT mode
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329
uuWhen Driving uDual Clutch Transmission
Driving
If there is a strong impact with something under the vehicle, stop in a safe location.
Check the underside of the vehicle for damage or any fluid leaks.
If any of these components are damaged or loose, the stability, handling, and
powertrain cooling performance of the vehicle may be adversely affected.
Dual Clutch Transmission
As with a conventional gasoline-powered ve hicle with an automatic transmission,
this vehicle will creep.
Keep the brake pedal firmly depressed when stopped.
The accelerator pedal features a kick down switch. Quickly depressing the
accelerator pedal while driving may cause th e transmission to drop to a lower gear,
subsequently increasing vehicle speed. De press the accelerator pedal carefully,
especially when driving uphill, on slippery roads, and curves.
■Other Precautions
■Creeping
■Kickdown
1Precautions While Driving
Do not select
(N while driving as you will lose engine
braking (and accelera tion) performance.
Avoid hard braking for the first 200 miles (300 km).
You should also follow this recommendation when
the brake pads are replaced.
Models with iron brake discs
1 Dual Clutch Transmission
The DCT will not operate when it is extremely cold. If
the vehicle has been parked in extremely cold
conditions, after you start th e engine, wait until it
gets warm. Keep your vehicle parked until the
READY indicator comes on.
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330
uuWhen Driving uShifting
Driving
Shifting
Change the gear position in acco rdance with your driving needs.
■Shift button positions
1Shifting
While the High Voltage battery charge level is full, or
the High Voltage battery temperature is low,
regenerative braking ma y become less effective.
To prevent malfunction an d unintended engagement:
•Do not spill any liquids on or around shift buttons.•Do not place or drop any objects on or around shift
buttons.
•Do not let passenger or children operate the shift
buttons.
You may occasionally find th at it takes longer than
usual for the vehicle to start moving when you select
( R, release the brake peda l, and/or depress the
accelerator pedal. This may occur when the High
Voltage battery charge level is extremely low; in this
circumstance, it does not indicate a vehicle
malfunction.
3WARNING
The vehicle can roll aw ay if left unattended
without confirming that Park is engaged.
A vehicle that rolls away could cause a crash
resulting in serious injury or death.
Always keep your foot on the brake pedal
until you have confirmed that
( P is shown
on the gear position indicator.
Park
Used when parking or before turning the
power on or off.
Transmission is locked.
Reverse
Used when reversing
Neutral
Used to keep the transmission disengaged
from the engine and motor.
Drive/Manual
Each time you press the button, the
mode switches between D (drive) and M
(manual) mode.
Used for:
●Normal driving (gears change between 1st
and 9th automatically)
●Temporarily driving in the sequential
mode
●Driving in the sequential mode
D/M
D (Drive)
M (Manual)
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uuWhen Driving uShifting
332
Driving
■Shift Operation1Shift Operation
NOTICE
Before you change to (R and vice versa, come
to a complete stop and keep the brake pedal
depressed.
Operating the shift button before the vehicle has
come to a complete standstill may damage the
transmission.
Use the gear position indicator and the shift button
indicator to check the gear position before selecting
a shift button.
If the indicator of the currently selected gear position,
or all gear position in dicators, are blinking
simultaneously, there is a problem with the
transmission.
Avoid sudden acceleration and have the transmission
checked by an authorized Acura NSX dealer as soon
as possible.
The fuel supply may be cut of f if you drive at engine
speeds in or over the tachometer’s red zone (engine
speed limit). If this happe ns, you may experience a
slight jolt.
When the engine speed is increased while the
transmission is in
( N, (P or (R, the fuel supply may
be cut off even without the engine speed entering
the tachometer’s red zone.
The beeper sounds once when you change to
( R.
D/M
Gear Position Indicator
Tachometer’s red zone
Press the (
P button.
Press back the ( R button.
Press the
( N button.
Press the button.
Each time you press the
button, the mode switches between
D (drive) and M (manual) mode.
D/M
D/M
Shift Button
Indicator Gear Selection Indicator
Gear Position Indicator
Gear Selection Indicator
Gear Position Indicator
Gear Selection IndicatorEV
D (Drive)
D-Paddle
M (Manual)
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Continued333
uuWhen Driving uShifting
Driving
■When opening the driver’s door
If you open the driver’s door under the following conditions, the gear position
automatically changes to
(P.
• The vehicle is stationary with the power mode in ON, or moving at 1 mph (2 km/
h) or slower.
• The transmission is in other than
(P.
• You have unfastened the driver side seat belt.
u If you manually change the gear position from
(P with the brake pedal
depressed, the gear position will automatically return to
(P once you release
the brake pedal.
■When turning off the power mode
If you turn the power system off while the vehicle is stationary, and the transmission
is in other than
(P, the gear position automatically changes to (P.
■If you want to keep the transmission in (N position (car wash mode)
With the engine running:
1. Press and hold the brake pedal.
2. Press
(N. Within two seconds press and hold (N for two seconds.
3. Within five seconds press the ENGINE START/STOP button.
u This puts the vehicle in car wash mode which must be used when your vehicle
is pulled through a conveyor type automatic car wash where you or an
attendant do not remain in the vehicle.
u The gear position remains in
(N with the power mode in ACCESSORY for 15
minutes, then, it auto matically changes to
(P and the power mode changes to
OFF.
Manually changing to
(P cancels ACCESSORY mode. The (P indicator comes on
and the power mode changes to OFF.
1 When opening the driver’s door
While the system is designed to automatically change
the gear position to
(P under the described
conditions, in the interest of safety you should always
select
( P before opening the driver's door.
Make sure to park the vehicle in a safe place.
2 When Stopped P. 368
If you want to drive the ve hicle after the gear position
has automatically changed to
( P under the described
conditions, close the door, fasten the seat belt,
depress the brake pedal, then change the gear
position.
If you leave the vehicle, turn off the power system
and lock the doors.
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Continued335
uuWhen Driving uShifting
Driving
Use the paddle shifters to change betwee n 1st and 9th gears without removing your
hands from the steering wheel. The transmission will switch to the sequential mode.
■When the transmi ssion is in (D (D-paddle shift mode):
The vehicle will go into the sequential mode momentarily, and the gear selection
indicator becomes more prominent.
The sequential mode is automatically canc eled and the gear selection indicator
returns to ordinary display under the following conditions.
• Hold the
(+ paddle shifter for a few seconds.
• Once you start traveling at a constant speed.
• The vehicle comes to a complete stop.
• When you change to another Integrated Dynamics System mode.
The sequential mode automatically shifts under following condition
• Accelerator pedal depressed beyond the click.
• Engine speed reaches near the tachometer’s red zone.
• Engine speed reaches idle speed while deceleration.
■Sequential Mode1Sequential Mode
When sequential mode is selected, the gasoline
engine powers the vehicle.
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uuWhen Driving uShifting
338
Driving
■Sequential Mode Operation1Sequential Mode Operation
Each paddle shift operation makes a single gear
change.
To change gears continuously, release the paddle
shifter before pulling it again for the next gear.
If the sequential mode gear selection indicator blinks
when you try to shift up or down, this means your
vehicle speed is not in its allowable gear range.
Slightly accelerate to shift up and decelerate to shift
down while the indi cator is blinking.
In Manual mode, to pr ioritize the engine
performance enhancement, the transmission may
not allow for shifting up while the engine speed is
low.
Downshifting when pulling
the paddle shifter.
(Changes to a lower gear)Upshifting when pulling
the paddle shifter.
(Changes to a higher gear)
Paddle Shifter
(Shift down) Paddle Shifter
(Shift up)
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340
uuWhen Driving uIntegrated Dynamics System
Driving
Integrated Dynamics System
Constantly controls your ve hicle’s engine, transmission, High Voltage battery, EPS,
dampers, brakes, VSA ® and SH-AWD® according to the mode you select.
You can choose between four modes, QUIET mode, SPORT mode, SPORT+ mode
and TRACK mode by turning the switch on the center console.
Current mode is displayed on the Driver Information Interface, and each mode will
appear differently.1 Integrated Dynamics System
You can set the mode to be selected when you set
the power mode to ON.
2 Customized Features P. 248
The mode may not be able to be changed under
some driving conditions. If mode change is necessary,
reduce speed or cornering speed.
This message will also be shown if you try to change
modes when any vehicl e systems have failed.
SPORT mode SPORT+ mode
Hold
QUIET mode TRACK mode
Integrated Dynamics
System Mode Switch
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341
uuWhen Driving uIntegrated Dynamics System
Continued
Driving
Category QUIETSPORTSPORT+ TRACK
Information
DisplayDriver
Information
InterfaceMinimized and not
intrusive.Easy to read
information for every
day driving.Information for more aggressive driving is added
(engine oil temp, SH-AWD® system temp,
tachometer position prioritizes high engine
speed).
Chassis
Control Steering
Steering effort is balanced for city and highway
use. Increased steering effort for driver feedback.
Suspension
Damping Damping is set for balanced use in every day
driving. Damping is set for higher body control and
performance in a performance driving
environment.
Braking Feel settings are balanced for opera tion on all public road environments. Feel setting is
calibrated for high
temperature operation
on track.
VSA ® Balanced calibration for VSA
® and Traction control
in all environments. Enhanced control for
Agile Handling Assist,
VSA
®, and Traction
Control during
performance driving. Track oriented control
allowing increased
freedom for the driver.
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