ABS ACURA NSX 2021 User Guide

366
uuBraking uAnti-lock Brake System (ABS)
Driving
Anti-lock Brake System (ABS)
Helps prevent the wheels from locking up, an d helps you retain steering control by
pumping the brakes rapidly, much faster than you can.
The electronic brake distribution (EBD) system, which is part of the ABS, also
balances the front-to-rear braking distri bution according to vehicle loading.
You should never pump the brake pedal. Let the ABS work for you by always
keeping firm, steady pressure on the brake pe dal. This is sometimes referred to as
“stomp and steer.”
■ABS operation
You may hear an operating noise when the ABS is working. Depress the brake pedal
and keep holding the pedal firmly down. On dry pavement, you will need to press
on the brake pedal very hard before the ABS activates. However, you may feel the
ABS activate immediately if you are trying to stop on snow or ice.
ABS may activate when you depress the brake pedal when driving on:
• Wet or snow covered roads.
• Roads paved with stone.
• Roads with uneven surfaces, such as potholes, cracks, manholes, etc.
When the vehicle speed goes unde r 6 mph (10 km/h), the ABS stops.
■ABS1Anti-lock Brake System (ABS)
NOTICE
The ABS may not function correctly if you use an
incorrect tire type and size.
When the ABS indicator comes on while driving,
there may be a problem with the system.
While normal braking is not affected, there is a
possibility of the ABS not operating. Have your
vehicle checked by an authorized Acura NSX dealer
immediately.
The ABS does not reduce the ti me or distance it takes
to stop the vehicle. It only helps with steering control
during hard braking.
In the following cases, yo ur vehicle may need more
stopping distance than a vehicle without the ABS:
•When driving on rough road surfaces, including
when driving on uneven surf aces, such as gravel or
snow.
•When tire chains are installed.
The following may be observed with the ABS system:
•Motor sounds coming from the engine
compartment when the brakes are applied, or
when system checks are being performed after the
engine has been started and while vehicle is
accelerates.
These sounds are normal to ABS systems and are no
cause for concern.
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369
uuParking Your Vehicle uParking Sensor System*
Continued
Driving
Parking Sensor System*
The corner and center sensors monitor ob stacles around your vehicle, and the
beeper, driver information interface and a udio/information screen let you know the
approximate distance between your vehicle and the obstacle.
■The sensor location and range
1 Parking Sensor System*
Even when the system is on, always confirm if there is
no obstacle near your ve hicle before parking.
The system may not work properly when:
•The sensors are covered with snow, ice, mud or
dirt.
•The vehicle is on uneven su rface, such as grass,
bumps, or a hill.
•The vehicle has been out in hot or cold weather.•The system is affected by devices that emit
ultrasonic waves.
•Driving in bad weather.
The system may not sense:
•Thin or low objects.•Sonic-absorptive materials, such as snow, cotton,
or sponge.
•Objects directly under the bumper.
Do not put any accessories on or around the sensors.Within about 24 in (60 cm) or less
Front Corner Sensors
Rear Corner Sensors
Rear Center Sensors
Within about 43 in (110 cm) or less
Within about 39 in (100 cm) or less
Front Center Sensors
* Not available on all models
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375
Driving
Refueling
Fuel Information
■Fuel requirement
Use of lower octane gasoline can cause occasional metallic knocking noise in the
engine and will result in decreased engine performance.
We recommend that you use a pump octane of 93 or higher to maximize the
performance of the engine.
Use of gasoline with a pump octane less than 91 can lead to engine damage.
■Top tier detergent gasoline
Because the level of detergency and additi ves in gasoline vary in the market, Acura
endorses the use of “TOP TIER Detergent Gasoline” where available to help
maintain the performance and reliability of your vehicle. TOP TIER Detergent
Gasoline meets a new gasoline standard jointly established by leading automotive
manufacturers to meet the needs of today’s advanced engines.
Qualifying gasoline retailers will, in most cases, identify their gasoline as having met
“TOP TIER Detergent Gasoline” standards at the retail location. This fuel is
guaranteed to contain the proper level of de tergent additives and be free of metallic
additives. The proper level of detergent ad ditives, and absence of harmful metallic
additives in gasoline, help avoid build-up of deposits in your engine and emission
control system.
For further important fuel-related information for your vehicle, or on information on
gasoline that does not contain MMT, visit Acura Owners at owners.acura.com. In
Canada, visit www.acura.ca for additional informati on on gasoline. For more
information on top tier gasoline, visit www.toptiergas.com.
■Fuel tank capacity: 15.6 US gal (59.0 liters)
Unleaded premium gasoline, pump octane number 91 or higher
1Fuel Information
NOTICE
We recommend quality ga soline containing
detergent additives that help prevent fuel system and
engine deposits. In addition, in order to maintain
good performance, fuel economy, and emissions
control, we strongly reco mmend the use of gasoline
that does NOT contain harmful manganese-based
fuel additives such as MMT, if such gasoline is
available.
Use of gasoline with these additives may adversely
affect performance, a nd cause the malfunction
indicator lamp on your inst rument panel to come on.
If this happens, contact an authorized Acura NSX
dealer for service.
Some gasoline today is blended with oxygenates such
as ethanol. Your vehicle is designed to operate on
oxygenated gasoline containing up to 15% ethanol
by volume. Do not use gaso line containing methanol.
If you notice any undesira ble operating symptoms, try
another service station or sw itch to another brand of
gasoline.
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386
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Maintenance
■Maintenance Service Items1Maintenance Service Items
•Independent of the Maintenance Minder
information, replace the brake fluid every 3 years.
•Adjust the valves during services A, B, 1, 2, or 3 if
they are noisy.
•Inspect direct injection + port injection fuel system
every 3 years or service item B is indicated.
•Inspect tire condition ev ery 3,100 miles (5,000 km).
Maintenance Minder Message System Message
Indicator
Main Item Sub Items
*1: If a message SERVICE does not appear more than 12 months after the display is reset, change the
engine oil every year.
# : See information on maintenance and emissions warranty.
CODEMaintenance Main Items
A •Replace engine oil*1
B•Replace engine oil*1 and oil filter
• Inspect front and rear brakes
• Check expiration date for temporary tire repair kit
bottle
• Inspect tie rod ends, steering gearbox, and boots
• Inspect suspension components
• Inspect driveshaft boots
• Inspect brake hoses and li nes (Including ABS/VSA®)
• Inspect all fluid levels and condition of fluids
• Inspect exhaust system
#
•Inspect fuel lines and connections#
•Inspect direct injection + port injection fuel system*2: If you drive in dusty conditions, replace the air cleaner element every 15,000 miles (24,000 km).
*3: If you drive primarily in urban areas that have high concentrations of soot in the air from industry and
from diesel-powered vehicles, replace the dust and pollen filters every 15,000 miles (24,000 km) or
every year.
*4: Driving in mountainous areas at very low vehicle speeds results in higher transmission temperature. This requires transmission fluid and clutch fluid changes more frequently than recommended by the
Maintenance Minder. If you regularly drive your vehicle under this condition, have the transmission
fluid and clutch fluid changed every 20,000 miles (32,000 km).
*5: Driving in mountainous areas at very low vehicle speeds results in higher level of mechanical (Shear) stress to fluid. This requires Twin Motor Unit fluid changes more frequently than recommended by the
Maintenance Minder. If you regularly drive your vehicle under these conditions, have the Twin Motor
Unit fluid changed at 7,500 miles (12,000 km), then every 15,000 miles (24,000 km).
CODEMaintenance Sub Items
1 •Inspect tire condition
2•Replace air cleaner element*2
•Replace dust and pollen filters*3
3 •Replace transmission fluid*4
•Replace clutch fluid*4
4•Replace spark plugs
• Inspect valve clearance
• Inspect Active Exhaust Valve function
• Replace Intake Sound Control
5 •Replace engine coolant
6•Replace Twin Motor Unit fluid*5
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417
uuChecking and Maintaining Tires uTire and Wheel Replacement
Maintenance
Tire and Wheel Replacement
Replace your tires with radials of the sa me size, load range, speed rating, and
maximum cold tire pressure rating (as shown on the tire’s sidewall). Using tires of a
different size or construction can cause ce rtain vehicle systems such as the ABS and
Vehicle Stability Assist
TM (VSA ®) system to work incorrectly.
It is best to replace all four tires at the same time.
If you replace a wheel, only use TPMS spec ified wheels approved for your vehicle.
Make sure that the wheel’s specificati ons match those of the original wheels.
1Tire and Wheel Replacement
3WARNING
Installing improper tires on your vehicle can
affect handling and stability. This can cause
a crash in which you can be seriously hurt or
killed.
Always use the size and type of tires
recommended in this owner’s manual.
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421
Maintenance
12-Volt Battery
Checking the 12-Volt Battery
Check the battery terminals for corrosion
monthly.
The battery is protected by a cover.
Remove the cover by pressing the tabs.
Slide the terminal cover on your vehicle’s 12-
volt battery positive + terminal.
The battery condition is monitored by the
sensor on the negative terminal. If there is a
problem with the sensor, the warning
message on the driver information interface
will let you know. Have your vehicle checked
by an authorized Acura NSX dealer.
If your vehicle’s battery is disconnected or goes dead:
• The audio system is disabled.
2 Reactivating the audio system P. 168
•The clock resets.
2 Clock P. 108
Charging the AGM Battery
AGM labeled batteries can be damaged if improperly charged. For more information
on how to charge an AGM battery, cons ult an authorized Acura NSX dealer.
112-Volt Battery
WARNING: Battery post, terminals,
and related accessories contain lead
and lead compounds.
Wash your hands after handling.
When you find corrosion, cl ean the battery terminals
by applying a baking powder and water solution.
Clean the terminals with a damp towel. Cloth/towel
dry the battery. Coat the terminals with grease to
help prevent future corrosion.
When replacing the battery, the replacement must be
of the same specifications.
Consult an authorized Acura NSX dealer for more
information.
3WARNING
The battery gives off explosive hydrogen
gas during normal operation.
A spark or flame can cause the battery to
explode with enough force to kill or
seriously hurt you.
When conducting any battery
maintenance, wear prot ective clothing and
a face shield, or have a skilled technician do
it.
Tab
Cover
Terminal
Cover
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Continued427
uuCleaning uExterior Care
Maintenance
A good coat of automotive body wax helps protect your vehicle’s paint from the
elements. Wax will wear off over time and expose your vehicle’s paint to the
elements, so reapply as necessary.
Your vehicle’s paint requires up to 60 da ys from the production date to fully cure.
During this time, avoid applying any wax or paint sealant-type products, as they
could inhibit the curing process and affect the paint’s durability.
You may polish the paint during these 60 days if the polish does not contain any wax
or paint sealant ingredients. Use only clean , high-quality microfiber towels or pads,
as they are a softer material with less chance of scratching the finish. It is absolutely
necessary to keep the microf iber towels or pads properly cleaned and maintained
before using on your vehicle.
■Applying Wax1 Applying Wax
NOTICE
Chemical solvents and strong cleaners can damage
the paint, metal, carbon fiber*, and plastic on your
vehicle. Wipe away spills immediately.
* Not available on all models
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451
uuPower System Won’t Start uEmergency Power System Off
Handling the Unexpected
Emergency Power System Off
The ENGINE START/STOP button may be used to turn the power system off due to
an emergency situation even while driving. If you must turn the power system off,
do either of the following operations:
• Press and hold the ENGINE START/STOP button for about two seconds.
• Firmly press the ENGINE START/STOP button three times.
The steering wheel will not lock. However, because turning off the engine disables
the power assist the engine provides to the steering and braking systems, it will
require significantly more physical effort an d time to steer and slow the vehicle. Use
both feet on the brake pedal to slow down the vehicle and stop immediately in a
safe place.
The gear position automatically changes to
(P after the vehicle comes to a complete
stop. Then, the power mode changes to VEHICLE OFF.
1 Emergency Power System Off
Do not press the ENGINE START/STOP button while
driving unless it is absolutely necessary for the power
system to be turned off.
If you press the ENGINE START/STOP button while
driving, the beeper sounds.
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457
uuIndicator, Comin g On/BlinkinguIf the Brake System Indicator (Red) Comes On
Handling the Unexpected
If the Brake System Indicator (Red) Comes On
■Reasons for the indicator to come on
• The brake fluid is low.
• There is a malfunction in the brake system.
■What to do when the indicator comes on while driving
Depress the brake pedal lightly to check pedal pressure.
• If normal, check the brake fluid level the next time you stop.
• If abnormal, take immediate acti on. If necessary, downshift the
transmission to slow the vehicle using regenerative braking.
If the Electric Power Steeri ng (EPS) System Indicator
Comes On
■Reasons for the indicator to come on
Comes on if there is a problem with the EPS system.
■What to do when th e indicator comes on
Stop the vehicle in a safe place a nd turn on the power system again.
If the indicator comes on and stays on, immediately have your vehicle
inspected by an author ized Acura NSX dealer.
1If the Brake System Indicator (Red) Comes On
Have your vehicle re paired immediately.
It is dangerous to drive with low brake fluid. If there
is no resistance from the brake pedal, stop
immediately in a safe plac e. If necessary, downshift
the gears.
If the brake system indicator and ABS indicator come
on simultaneously, the elec tronic brake distribution
system is not working. Th is can result in vehicle
instability under sudden braking.
Have your vehicle inspecte d by an authorized Acura
NSX dealer immediately.
If both red and amber brake system indicators come
on, stop the vehicle in a safe place and have it
inspected by an authorized Acura NSX dealer
immediately.U.S.
Canada
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461Continued
Handling the Unexpected
Fuses
Fuse Locations
If any electrical devices are not working, set
the power mode to VEHICLE OFF, and check
to see if any applic able fuse is blown.
There are two fuse boxes under the hood.
Fuse locations are shown on the fuse box
cover. Locate the fuse in question by the
fuse number and box cover number.
■Fuse box A
Located near the radiator. Push the tabs to
open the box.
■Hood Fuse Box
Tab
■Circuit protected and fuse rating
Circuit ProtectedAmps
1
EPS70 A
Cooling Fan50 A
ABS/VSA Motor40 A
ABS/VSA FSR20 A
AS F/B Main30 A
Main Fuse200 A
2
−(50 A)
F/B Main 1 60 A −(60A)
−(50A)
Left Electric Parking Brake Motor 30 A
Right Electric Parking Brake Motor 30 A
−( 40 A)
Heater Motor 2 30 A
Heater Motor 1 30 A −( 40 A)
3
E-OP30 A
−(30 A)
ADS30 A
AMP*(30 A)
4 Parking Light 10 A
5IGPS PCS7.5 A
6 Left Headlight High Beam 10 A
7VFP27.5 A
8 Left Headlight Low Beam 10 A
9Right Headlight High Beam10 A
10 Right Headlight Low Beam 10 A
11IGPS Fan7.5 A
12 FI Main 15 A
13FI Sub20 A
14 Back Up 7.5 A
15SBW ECU7.5 A
16 DBW1 15 A
17IG Coil15 A
18 DBW2 15 A
19Parking Light & Headlight Main20 A
20 Rear Defroster 20 A
21Front Washer20 A
22 ISC 15 A
23−−
24 ACC/IG2 Main 10 A
25Daytime Running Lights10 A
26 Horn 10 A
27Interior Lights7.5 A
28 IGP2 15 A
29Audio10 A
Circuit ProtectedAmps
* Not available on all models
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