sensor Acura NSX 2019 Owner's Manual
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4
Quick Reference Guide
Quick Reference Guide
Visual Index
❙Steering Wheel Adjustments (P 140)
❙ENGINE START/STOP Button (P 127)
❙ (Vehicle Stability Assist® (VSA ®) 
System OFF) Button 
(P 344)
❙System Indicators (P 70)
❙Gauges (P 95)
❙Driver Information Interface (P 98)
❙Rear Defogger/Heated Mirror Button 
(P 137)
❙Parking Sensor System Button* 
(P 363)
❙Hazard Warning Button
❙Seat Heater Buttons* (P 153)
❙Audio System (P 160)
❙Climate Control System (P 154)
❙MID Vents (P 20, 154)
❙Navigation System* 
()  See the Navigation System Manual
❙Integrated Dynamics System Mode 
Switch 
(P 333)
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uuAirbags uAirbag System Components
Safe Driving
The front, driver’s knee, side, and side 
curtain airbags are deployed according to 
the direction and severity of impact. Both 
side curtain airbags are deployed in a 
rollover. The airbag system includes:
aTwo SRS (Supplemental Restraint System) 
front airbags. The driver’s airbag is stored 
in the center of the steering wheel; the 
passenger’s airbag is stored in the 
dashboard. Both are marked  SRS 
AIRBAG.
bDriver’s knee airbag. The knee airbag is 
stored under the steering column. It is 
marked  SRS AIRBAG.
cTwo side airbags, one for the driver and 
one for a passenger. The airbags are 
stored in the outer edges of the seat-
backs. Both are marked SIDE AIRBAG .
dTwo side curtain airbags, one for each 
side of the vehicle. The airbags are stored 
in the ceiling, above the side windows. 
The front and rear pillars are marked 
SIDE CURTAIN AIRBAG.
eAn electronic control unit that, when the 
power system is on, continually monitors 
information about the various impact 
sensors, seat and buckle sensors, rollover 
sensor, airbag activators, seat belt 
tensioners, and other vehicle 
information. During  a crash event the 
unit can record such information.
fAutomatic seat belt tensioners. In 
addition, the driver’s and passenger’s 
seat belt buckles incorporate sensors that 
detect whether or not the belts are 
fastened.
gWeight sensors in the passenger’s seat. 
The passenger’s airbag will be turned off 
if the weight on the seat is 65 lbs (29 kg) 
or less (the weight of an infant or small 
child).
hImpact sensors that can detect a 
moderate-to-severe front or side impact.
iAn indicator on the dashboard that alerts 
you that the passenger’s front airbag has 
been turned off.
jAn indicator on the instrument panel that 
alerts you to a possibl e problem with your 
airbag system or seat belt tensioners.
kA rollover sensor that can detect if your 
vehicle is about to roll over and signal the 
control unit to deploy both side curtain 
airbag.
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Continued47
uuAirbags uFront Airbags (SRS)
Safe DrivingFront airbags are designed to inflate duri ng moderate-to-severe frontal collisions. 
When the vehicle decelerates suddenly, the sensors send information to the control 
unit which signals one or both front airbags to inflate.
A frontal collision can be either head-on or angled between two vehicles, or when a 
vehicle crashes into a stationary object, such as a concrete wall.
While your seat belt restrains your torso, the 
front airbag provides supplemental protection 
for your head and chest.
The front airbags deflate immediately so that 
they won’t interfere with the driver’s visibility 
or the ability to steer or operate other 
controls.
The total time for inflation and deflation  is so fast that most occupants are not 
aware that the airbags deployed until th ey see them lying in front of them.
■Operation
■How the Front Airbags Work1How the Front Airbags Work
Although the driver’s a nd passenger’s airbags 
normally inflate within a spli t second of each other, it 
is possible for only one airbag to deploy. This can 
happen if the severity of a  collision is at the margin, 
or threshold that determines whether or not the 
airbags will deploy. In such cases, the seat belt will 
provide sufficient protec tion, and the supplemental 
protection offered by the airbag would be minimal.
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uuAirbags uFront Airbags (SRS)
Safe Driving
■When front airbags should not deploy
Minor frontal crashes:  Front airbags were designed to supplement seat belts and 
help save lives, not to prevent minor scrapes, or even broken bones that might occur 
during a less than moderate-to-severe frontal crash.
Side impacts: Front airbags can provide protection when a sudden deceleration 
causes a driver or passenger to move towa rd the front of the vehicle. Side airbags 
and side curtain airbags have  been specifically designed to help reduce the severity 
of injuries that can occur  during a moderate-to-severe side impact which can cause 
the driver or passenger to move  toward the side of the vehicle.
Rear impacts:  Head restraints and seat belts are your best protection during a rear 
impact. Front airbags cannot provide any significant protection and are not designed 
to deploy in such collisions.
Rollovers:  In a rollover, your best form of protection is a seat belt or, if your vehicle 
is equipped with a rollover sensor, both a se at belt and a side curtain airbag. Front 
airbags, however, are not designed to deploy in a rollover as they would provide 
little if any protection.
■When front airbags deploy with  little or no visible damage
Because the airbag system senses sudden deceleration, a strong impact to the 
vehicle framework or suspension might caus e one or more of the airbags to deploy. 
Examples include running into a curb, the edge of a hole, or other low fixed object 
that causes a sudden deceleration in th e vehicle chassis. Since the impact is 
underneath the vehicle, damage may not be readily apparent.
■When front airbags may not deploy, even though exterior damage 
appears severe
Since crushable body parts absorb crash energy during an impact, the amount of 
visible damage does not always indicate  proper airbag operation. In fact, some 
collisions can result in severe damage but no airbag deployment because the airbags 
would not have been needed or would not  have provided protection even if they 
had deployed.
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uuAirbags uFront Airbags (SRS)
Safe DrivingThe passenger’s airbag have advanced f eatures to help reduce the likelihood of 
airbag related injuries to a smaller occupant. The passenger’s advanced airbag system has 
weight sensors.
We advise against allowi ng a child age 12 or 
under to ride in the passenger’s seat.
However,  if you do allow a child age 12 or 
under to ride in the passenger’s seat,  note 
that the system will auto matically turn off the 
passenger’s airbag if the sensors detect that 
the child is approximately 65 lbs (29 kg) or 
less.
■Advanced Airbags1 Advanced Airbags
For the passenger’s advanced front airbag to work 
properly:
•Do not spill any liquid on or under the seat.
•Do not put any object under the passenger’s seat.•Make sure any objects are positioned properly on 
the floor. Improperly pos itioned objects can 
interfere with the advanced airbag sensors.
•An occupant should sit uprig ht and wear their seat 
belts properly.
•Do not place any cover over the passenger side 
dashboard. 2 Passenger Airbag Off Indicator  P. 56
Passenger’s 
Seat 
Weight 
Sensors
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uuAirbags uSide Airbags
Safe Driving
Side Airbags
The side airbags help protect the torso and pelvis of the driver or a passenger during 
a moderate-to-severe side impact.
The side airbags are housed in the outside 
edge of the driver’s and passenger’s seat-
backs.
Both are marked SIDE AIRBAG.
When the sensors detect a moderate-to-
severe side impact, the control unit signals the 
side airbag on the impact side to immediately 
inflate.
■Housing Locations
1 Side Airbags
Make sure you and your pa ssenger always sit upright. 
Leaning into the path of a side airbag can prevent the 
airbag from deploying pr operly and increases your 
risk of serious injury.
Do not attach accessories on  or near the side airbags. 
They can interfere with the proper operation of the 
airbags, or hurt someone if an airbag inflates.
Do not cover or replace th e seat-back covers without 
consulting an authorized Acura NSX dealer.
Improperly replacing or cove ring seat-back covers can 
prevent your side airbag s from properly deploying 
during a side impact.
Housing 
Location
■Operation
When 
inflated
Side 
Airbag
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uuAirbags uSide Airbags
Safe Driving
■When a side airbag deploys with little or no visible damage
Because the airbag system senses sudden acceleration, a strong impact to the side 
of the vehicle’s framework can cause a side  airbag to deploy. In such cases, there 
may be little or no damage, but the side  impact sensors detected a severe enough 
impact to deploy the airbag.
■When a side airbag may not deploy,  even though visible damage appears 
severe
It is possible for a side airbag to not deploy during an impact that results in 
apparently severe damage. This can occur  when the point of impact was toward the 
far front or rear of the vehicle, or when  the vehicle’s crushable body parts absorbed 
most of the crash energy. In either case , the side airbag would not have been 
needed nor provided protection even if it had deployed.
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uuAirbags uAirbag System Indicators
56
Safe Driving■When the passen ger airbag off 
indicator comes on
The indicator comes on  to alert you that the 
passenger’s front airbag  has been turned off.
This occurs when the weight sensors detect 
about 65 lbs (29 kg) or less, the weight of an 
infant or small child, on the seat.
Your vehicle is not recommended for child  passengers. Never put a rear-facing child 
seat in this vehicle.
If you decided to disregard our recommendations and transport a small child, they 
should be properly restrained.
2 Child Safety  P. 58
Objects placed on the seat can also  cause the indicator to come on.
If the passenger seat is empty, the passeng er’s front airbag will not deploy and the 
indicator will not come on.
■Passenger Airbag Off Indicator1 Passenger Airbag Off Indicator
To ensure the passenger is detected properly, 
confirm that:
•There is no object pressing  against the rear of the 
seat-back.
•The passenger’s seat or seat-back is not forced 
back against the rear wall of the vehicle.
•There is no object placed  under or beside the 
passenger’s seat.
•The occupant is sitting in  an upright position and 
the seat back is not  excessively reclined.
•The occupant is not leaning against the door or 
center console.
•The occupant’s feet are plac ed on the floor in front 
of them.
•There are no objects hanging from the passenger’s 
seat.
The passenger airbag off  indicator may come on and 
go off periodically if the tota l weight on the seat is 
near the airbag cutoff threshold.
Have your vehicle checked  by an authorized Acura 
NSX dealer as soon  as possible if:
•All of the above conditions are met, and the 
indicator comes on with an adult riding there.
•All of the above conditions are met, and the 
indicator goes off with a  small child riding there. 
(See Child Safety.)
•If the seat is empty  and the indicator is on.
Do not allow an adult passe nger to ride in the seat 
when the indicator is on.
U.S. Canada
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uuAirbags uAirbag Care
Safe Driving
Airbag Care
You do not need to, and should not, perform any maintenance on or replace any 
airbag system components yourself. However, you should have your vehicle 
inspected by an authoriz ed Acura NSX dealer in the following situations:
■When the airbags have deployed
If an airbag has inflated, the control unit  and other related parts must be replaced. 
Similarly, once an automatic seat belt te nsioner has been activated, it must be 
replaced.
■When the vehicle has been in a moderate-to-severe collision
Even if the airbags did not in flate, have an authorized Acura NSX dealer inspect the 
following: the weight sensors in the passenger’s seat, seat belt tensioners, and each 
seat belt that was worn during the crash.
■Do not remove or modify  a seat without consulting an authorized Acura 
NSX dealer
This would likely disable or affect the prope r operation of the weight sensors in the 
passenger’s seat. If it is necessary to re move or modify a seat to accommodate a 
person with disabilities, contact an authoriz ed Acura NSX dealer, or for U.S. vehicles, 
Acura Client Service at 1-844-682-2872 an d for Canadian vehicles, Acura Client 
Service at 1-888-9-ACURA-9 or 1-844-9-MYNSX-9 (NSX-specific).
1 Airbag Care
We recommend against the use of salvaged airbag 
system components, including the airbag, tensioners, 
sensors, and control unit.
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uuIndicators u
Continued
Instrument Panel
IndicatorNameOn/BlinkingExplanationMessage
Seat Belt 
Reminder 
Indicator
●Comes on and the beeper sounds if 
you are not wearing a seat belt 
when you set the power mode to 
ON.
●If the passenger is not wearing a 
seat belt, the indicator comes on a 
few seconds later.
●Blinks while driving if either you or 
the passenger has not fastened a 
seat belt. The beeper sounds and 
the indicator blinks at regular 
intervals.
●The beeper stops and the indicator goes off 
when you and the passenger fasten their 
seat belts.
●Stays on after you or the passenger has 
fastened the seat belt  - A detection error 
may have occurred in the sensor. Have your 
vehicle checked by an  authorized Acura 
NSX dealer.
2 Seat Belt Reminder  P. 37
Low Fuel Indicator
●Comes on when the fuel reserve is 
running low (approximately 2.4 
U.S. gal/8.9 Liter left).
●Blinks if there is a problem with the 
fuel gauge.
●Comes on - Refuel your vehicle as soon as 
possible.
●Blinks - Have your vehicle checked by an 
authorized Acura NSX dealer.
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