
2005 S2000 Online Reference Owner's Manual
Use these links (and links throughout this manual) to navigate through this reference.
For a printed owner's manual, click on authorized manuals or go to www.helminc.com.
Contents
Introduction ....................................................................................................................................... i
A Few Words About Safety ................................................................................................................ ii
Your Vehicle at a Glance ................................................................................................................... 3
Driver and Passenger Safety ............................................................................................................ 5
Seat belts, SRS, and child protection.
Instruments and Controls ................................................................................................................ 37
Indicators, gauges, dashboard, and steering column.
Features .............................................................................................................................................. 73
Heating and Cooling, audio, steering wheel and cruise control
Before Driving................................................................................................................................... 99
Fuel, vehicle break-in, and cargo loading.
Driving .............................................................................................................................................. 111
Engine and transmission operation.
Maintenance ..................................................................................................................................... 121
Schedules, fluid checking, minor services, and vehicle storage.
Taking Care of the Unexpected ...................................................................................................... 157
Flat tire, dead battery, overheating, fuses.
Technical Information ..................................................................................................................... 181
Vehicle specifications, tires, fuels, and emissions controls.
Warranty and Customer Relations (U.S. and Canada) ................................................................ 193
Warranty and contact information.
Authorized Manuals (U.S. only)...................................................................................................... 197
How to order.
Index..................................................................................................................................................... I
Service Information Summary
Fluid capacities and tire pressures.
Main controls
Owner's Identification Form

Congratulations on your selection of the 2005 Honda S2000. We are certain
you will be pleased with your purchase of one of the most sophisticated and
technologically-advanced sports cars in the world.
One of the best ways to enhance the enjoyment of your new vehicle is to
read this manual. In it, you will learn how to operate its driving controls and
convenience items. Afterwards, keep this owner’s manual in your vehicle so
you can refer to it at any time.
Several warranties protect your new vehicle. Read the warranty booklet
thoroughly so you understand the coverages and are aware of your rights
and responsibilities.
Maintaining your vehicle according to the schedules given in this manual
helps to keep your driving trouble-free while it preserves your investment.
When your vehicle needs maintenance, keep in mind that your dealer’s staff
is specially trained in servicing the many systems unique to your vehicle.
Your dealer is dedicated to your satisfaction and will be pleased to answer
any questions and concerns.
California Proposition 65 Warning
This product contains
or emits chemicals known to the
State of California to cause cancer
and birth defects or other
reproductive harm.
As you read this manual, you will
find information that is preceded by
a symbol. This
information is intended to help you
avoid damage to your vehicle, other
property, or the environment.
Event Data Recorders
This vehicle is equipped with one or
more recording devices commonly
referred to as event data recorders
or sensing and diagnostic modules.
Introduction
WARNING:
i

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Your safety, and the safety of others,
is very important. And operating this
vehicle safely is an important
responsibility.
To help you make informed
decisions about safety, we have
provided operating procedures and
other information on labels and in
this manual. This information alerts
you to potential hazards that could
hurt you or others.
Of course, it is not practical or
possible to warn you about all the
hazards associated with operating or
maintaining your vehicle. You must
use your own good judgement.
You will find this important safety information in a variety of forms,
including:
This entire book is filled with important safety information please read it
carefully.
how to use this vehicle correctly and safely.
such as Driver and Passenger Safety.
such as Important Safety Reminders or Important
Safety Precautions.
These signal words mean:
preceded by a safety alert symbol and one of
three signal words: , , or .
on the vehicle.
A Few Words About Safety
Instructions
Safety Section
Safety Headings
Safety Messages
Safety Labels
DANGER WARNING CAUTION
ii
You CAN be HURT if you don’t follow
instructions.
You CAN be KILLED or SERIOUSLY
HURT if you don’t follow instructions.
You WILL be KILLED or SERIOUSLY
HURT if you don’t follow instructions.

Your Vehicle at a Glance
Your Vehicle at a Glance
3
HOOD RELEASE
HANDLE
DOOR LOCK
SWITCH
POWER WINDOW
SWITCHES
MIRROR
CONTROLS
ROOF SWITCH
AUDIO SYSTEM
HAZARD WARNING BUTTON
(P.48)
(P.102)
(P.54)
(P.59)
(P.66)
(P.78)
(P.49) (P.62)
HEADLIGHTS/TURN SIGNALS WINDSHIELD WIPERS/
WASHERS
REAR WINDOW DEFOGGER BUTTON
(P.50)
(P.47)
DRIVER’S FRONT
AIRBAG
(P.9, 19)
PASSENGER’S FRONT
AIRBAG
(P.9, 19)
HEATING AND
AIR CONDITIONING
(P.74)

Your Vehicle at a Glance
4
ENGINE START BUTTON
HEADLIGHTS/
TURN SIGNALS
HOOD RELEASE HANDLE HORN
WINDSHIELD WIPERS/
WASHERS
REAR WINDOW DEFOGGER
BUTTON
REMOTE AUDIO CONTROLS
(P.93)
(P.48)
(P.102) (P.95)
(P.47)
(P.50)
(P.49)
CLOCK SET
BUTTON
INSTRUMENT PANEL BRIGHTNESS
(P.114)
(P.45)
CRUISE CONTROL MASTER BUTTON
(P.95)
CRUISE CONTROL

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This section gives you important
information about how to protect
yourself and your passenger. It
shows you how to use seat belts. It
explains how your airbags work. And
it tells you how to properly restrain
children in your vehicle.
......... Important Safety Precautions . 6
....... Your Vehicle’s Safety Features . 7
....................................... Seat Belts . 8
........................................... Airbags . 9
......... Protecting Adults and Teens . 10
..... 1. Close and Lock the Doors . 10
...................... 2. Adjust the Seats . 10
............ 3. Adjust the Seat-Backs . 11
4. Fasten and Position the
............................. Seat Belts . 12
5. Maintain a Proper Sitting
................................ Position . 13
..... Advice for Pregnant Women . 14
... Additional Safety Precautions . 15
Additional Information About
....................... Your Seat Belts . 16
.. Seat Belt System Components . 16
...................... Lap/Shoulder Belt . 16
Automatic Seat Belt
............................... Tensioners . 17
............... Seat Belt Maintenance . 17
Additional Information About Your
..................................... Airbags . 19
...... Airbag System Components . 19
How Your Front Airbags
......................................... Work . 19
How the SRS Indicator
....................................... Works . 21
............................. Airbag Service . 21
... Additional Safety Precautions . 22
Protecting Children General
.................................... Guidelines . 23
All Children Must Be
............................... Restrained . 23
Your Vehicle is Not
Recommended for Child
.......................... Passengers . 24
The Passenger’s Airbag Poses
........................... Serious Risks . 24
... Additional Safety Precautions . 26
............. Protecting Small Children . 27
..................... Selecting a Child Seat . 28
.................... Installing a Child Seat . 28
........... Protecting Larger Children . 31
............... Checking Seat Belt Fit . 31
.................. Using a Booster Seat . 32
When Can a Child Ride in This
..................................... Vehicle . 33
... Additional Safety Precautions . 34
............. Carbon Monoxide Hazard . 35
................................... Safety Labels . 36
Driver and Passenger Safety
Driver and Passenger Safety
5

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You’ll find many safety
recommendations throughout this
section, and throughout this manual.
The recommendations on this page
are the ones we consider to be the
most important.
A seat belt is your best protection in
all types of collisions. Airbags are
designed to supplement seat belts,
not replace them. So even though
your vehicle is equipped with airbags,
make sure you and your passenger
always wear your seat belts, and
wear them properly (see page ).
Since all children are safest in the
back seat of a vehicle, and your
vehicle does not have a back seat, we
recommend that you do not carry a
child passenger.
If an older child must ride in this
vehicle, follow all child safety
instructions and warnings in this
manual (see pages ).
While airbags can save lives, they
can cause serious or fatal injuries to
occupants who sit too close to them,
or are not properly restrained.
Infants, young children, and short
adults are at the greatest risk. Be
sure to follow all instructions and
warnings in this manual.
Alcohol and driving don’t mix. Even
one drink can reduce your ability to
respond to changing conditions, and
your reaction time gets worse with
every additional drink. So don’t drink
and drive, and don’t let your friends
drink and drive, either.
Excessive speed is a major factor in
crash injuries and deaths. Generally,
the higher the speed, the greater the
risk, but serious injuries can also
occur at lower speeds. Never drive
faster than is safe for current
conditions, regardless of the
maximum speed posted.
Having a tire blowout or a
mechanical failure can be extremely
hazardous. To reduce the possibility
of such problems, check your tire
pressures and condition frequently,
and perform all regularly scheduled
maintenance (see page ).
12
23 34
125
Important Safety Precautions
Always Wear Your Seat Belt
Your Vehicle is Not
Recommended for Child
Passengers
Be Aware of Airbag Hazards
Don’t Drink and Drive
Control Your Speed
Keep Your Vehicle in Safe
Condition
Due to the passenger’s airbag hazard,
you should never carry an infant in a
rear-facing child seat in this vehicle.
6

Your vehicle is equipped with many
features that work together to
protect you and your passenger
during a crash.
Some features do not require any
action on your part. These include a
strong steel framework that forms a
safety cage around the passenger
compartment; front and rear crush
zones, a collapsible steering column;
and tensioners that tighten the seat
belts in a crash.
However, you and your passenger
can’t take full advantage of these
features unless you remain sitting in
a proper position and
. In fact, some safety
features can contribute to injuries if
they are not used properly.
The following pages explain how you
can take an active role in protecting
yourself and your passenger.
Your Vehicle’s Safety Features
always wear
your seat belts
Driver and Passenger Safety
7
(8)
(1) (9) (3) (4) (7) (6)
(2)
(5)
(2)
(8)
(1) Safety Cage
(2) Crush Zones
(3) Seats and Seat-Backs
(4) Head Restraints
(5) Collapsible Steering Column
(6) Seat Belts
(7) Seat Belt Tensioners
(8) Airbags
(9) Door Locks

Your vehicle is equipped with seat
belts in both seating positions.
Your seat belt system also includes
an indicator on the instrument panel
to remind you and your passenger to
fasten your seat belts.
Keep you from being thrown out
of the vehicle.
Help keep you in a good position
should the airbags ever deploy. A
good position reduces the risk of
injury from an inflating airbag and
allows you to get the best
advantage from the airbag.
Of course, seat belts cannot
completely protect you in every
crash. But in most cases, seat belts
can reduce your risk of serious
injury.
Seat belts have proven to be the
single most effective safety device
for adults and larger children.
Not wearing a seat belt properly
increases the chance of serious
injury or death in a crash, even
though your vehicle has airbags.
In addition, most states and all
Canadian provinces require you to
wear seat belts.
When properly worn, seat belts:
Keep you connected to the vehicle
so you can take advantage of the
vehicle’s built-in safety features.
Help protect you in almost every
type of crash, including frontal,
side, and rear impacts and
rollovers.
Help keep you from being thrown
against the inside of the vehicle
and against the other occupant.
Always wear
your seat belt, and make sure you
wear it properly.
Your Vehicle’s Safety Features
Seat Belts
Why Wear Seat Belts
What you should do:
8
Not wearing a seat belt properly
increases the chance of serious
injury or death in a crash, even
though your vehicle has airbags.
Be sure you and your
passenger always wear seat
belts and wear them properly.

Your vehicle has a Supplemental
Restraint System (SRS) with front
airbags to help protect the heads and
chests of the driver and a passenger
during a moderate to severe frontal
collision (see page for more
information on how your airbags
work).
The most important things you need
to know about your airbags are:
They are designed to supplement
the seat belts.
To do their job, airbags must
inflate with tremendous force. So
while airbags help save lives, they
can cause minor injuries or more
serious or even fatal injuries if
occupants are not properly
restrained or sitting properly.
Always wear
your seat belt properly, and sit
upright and as far back from the
steering wheel as possible while
allowing full control of the vehicle. A
passenger should move the seat as
far back from the dashboard as
possible.
The rest of this section gives more
detailed information about how you
can maximize your safety.
Remember, however, that no safety
system can prevent all injuries or
deaths that can occur in a severe
crash, even when seat belts are
properly worn and the airbags deploy.
19
Your Vehicle’s Safety Features
Airbags
Airbags do not replace seat belts.
Front airbags offer no protection
in side impacts, rear impacts,
rollovers, or minor collisions.
Airbags can pose serious hazards.
What you should do:
Driver and Passenger Safety
9
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Description
Gain immediate access to a comprehensive manual available in PDF format, extracted from the original factory owner's manual. This digital resource mirrors the content of a traditional physical manual and encompasses vital information on:
- Introduction
- Instrument Cluster
- Entertainment Systems
- Climate Controls
- Lights
- Driver Controls
- Locks and Security
- Seating and Safety Restraints
- Driving
- Customer Assistance
- Reporting safety defects (U.S. only)
- Cleaning
- Maintenance and Specifications
- Engine Compartment
- Engine Oil
- Battery
- Fuel Information
- Air Filter(s)
- Part Numbers
- Refill Capacities
- Lubricant Specifications
- Accessories
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