power steering INFINITI G-COUPE 2012 Owners Manual

0-14Illustrated table of contents
SDI2709
VQ25HR/VQ37VHR ENGINE
1. Fuse/fusible link holder (P.8-24)
2. Battery (P.8-17)
3. Engine oil filler cap (P.8-11)
4. Brake fluid reservoir (P.8-15)
5. Clutch fluid reservoir (Manual Trans-mission models) (P.8-15)
6. Window washer fluid reservoir (P.8-16)
7. Power steering fluid reservoir (P.8-14)
8. Air cleaner (P.8-21) 9. Radiator filler cap (P.8-9)
10. Drive belts (P.8-19)
11. Coolant reservoir (P.8-9)
12. Engine oil dipstick (for VQ37VHR
engine model) (P.8-11)
13. Engine oil dipstick (for VQ25HR en- gine model) (P.8-11)
ENGINE COMPARTMENT

3 Pre-driving checks and adjustments
Keys.................................................................... 3-2
Intelligent Key ................................................. 3-2
Valet hand-off.................................................. 3-3
Doors .................................................................. 3-4 Locking with mechanical key ........................... 3-4
Opening and closing windows with the
mechanical key................................................ 3-5
Locking with inside lock knob ......................... 3-5
Locking with power door lock switch ............... 3-5
Automatic door locks....................................... 3-6
Child safety rear door lock (Sedan).................. 3-6
Intelligent Key system ......................................... 3-7 Intelligent Key operating range ....................... 3-8
Door locks/unlocks precaution ....................... 3-9
Intelligent Key operation ............................... 3-10
Battery saver system ..................................... 3-12
Warning signals............................................. 3-12
Troubleshooting guide ................................... 3-13
Remote keyless entry system............................. 3-14 How to use remote keyless entry system....... 3-14
Hood ................................................................. 3-18
Trunk lid ............................................................ 3-18 Trunk lid release switch................................. 3-19 Trunk open request switch ........................... 3-19
Trunk release power cancel switch ............... 3-20
Interior trunk lid release .............................. 3-21
Unique front and rear parts (INFINITI Performance
Line, Aerodynamic Package models) .................. 3-21
Fuel-filler door................................................... 3-23 Opening the fuel-filler door.......................... 3-23
Fuel-filler cap............................................... 3-23
Tilt/telescopic steering ...................................... 3-26 Manual operation (if so equipped) ............... 3-26
Electric operation (if so equipped) ............... 3-26
Sun visors......................................................... 3-27
Mirrors ............................................................. 3-28
Inside mirror................................................ 3-28
Outside mirrors............................................ 3-29
Vanity mirror................................................ 3-31
Automatic drive positioner (if so equipped) ....... 3-31 Entry/exit function (Automatic Transmission
Sedan models)............................................. 3-31
Seat synchronization function ..................... 3-32
Memory storage........................................... 3-33
System operation......................................... 3-34

3-32Pre-driving checks and adjustments
Back on Exit”key is turned to ON or OFF in
the “Comfort” settings. (See “Vehicle
information and settings” (P.4-9).)
Initialize entry/exit function
If the battery cable is disconnected, or if
the fuse opens, the entry/exit function will
not work though this function was set on
before. In such a case, after connecting the
battery or replacing with a new fuse, open
and close the driver’s door more than two
times after the ignition switch is turned
from the ON position to the LOCK position.
The entry/exit function will be activated.
SPA2322
SEAT SYNCHRONIZATION FUNCTION
The seat synchronization function automa-
tically adjusts the positions of the steering
wheel and outside mirrors when the seat is
adjusted using the power seat switches.
However, the steering wheel and outside
mirrors will not move if the seat is adjusted
over the maximum thresholds. The system
considers that the steering wheel and
outside mirror adjustments are not neces-
sary because the seat may not be adjusted
for the driving position. Note that the
function is set to disabled as the factory
default setting. The seat synchronization function operates
under the following conditions:
.
The ignition switch is in the ON posi-
tion.
. The selector lever is in the P (Park)
position (Automatic Transmission mod-
els) or the parking brake is applied
(Manual Transmission models).
. The seatback is raised (Coupe).
If the outside mirrors or the steering wheel
reaches its maximum adjustment, the
function is automatically disabled. Restart
the function by selecting a previously
stored seat memory position using the
memory switches (1 or 2). An Intelligent
Key that was previously linked to the
stored seat memory can also be used to
restart the function.
If a seat position was not previously stored
in the seat memory, restart the function by
adjusting the steering wheel and outside
mirrors manually for your best driving
position and then drive the vehicle above
4 MPH (7 km/h).

Sonar system (if so equipped)........................... 5-48
Sonar indicator.............................................. 5-49
Sonar system OFF switch ............................... 5-50
Power steering................................................... 5-50
Brake system..................................................... 5-51 Braking precautions ...................................... 5-51
Parking brake break-in .................................. 5-51
Brake assist ...................................................... 5-52
Brake assist .................................................. 5-52
Preview function (Intelligent Cruise Control
system equipped models) ............................. 5-52
Anti-lock Braking System (ABS) ..................... 5-54 Vehicle Dynamic Control (VDC) system .............. 5-55
4 Wheel Active Steer (4WAS) system
(if so equipped) ................................................ 5-57
Cold weather driving ......................................... 5-58
Freeing a frozen door lock ........................... 5-58
Antifreeze .................................................... 5-58
Battery......................................................... 5-58
Draining of coolant water............................. 5-58
Tire equipment ............................................ 5-58
Special winter equipment ............................ 5-58
Driving on snow or ice ................................. 5-58
Engine block heater (for Canada only).......... 5-59

5-50Starting and driving
to the object with its color and rate of
blinking.
When an object is detected, the indicator
(green) appears and blinks (the tone
sounds intermittently). When the vehicle
moves closer to the object, the color of the
indicator turns yellow and the rate of
blinking increases (the rate of the tone
increases). When the corner of the vehicle
is very close to the object, less than 11.8 in
(30 cm) away, the indicator stops blinking
and turns red (the tone sounds continu-
ously).
When the rear view monitor is displayed,
the colors of the sonar indicator and the
distance guide lines in the rear view
indicate different distances to the object.
The sonar indicator can be turned off in the
SONAR setting display. (See“How to use
SETTING button” (P.4-14) for the“Sonar”
settings.) When the sonar indicator is off,
only a tone sounds when the sonar detects
obstacles.
SSD0929
SONAR SYSTEM OFF SWITCH
The sonar system OFF switch on the
instrument panel allows the driver to turn
the sonar system on and off. To turn the
sonar system on and off, the ignition
switch must be in the “ON”position. The
indicator light
*1on the switch will
illuminate when the system is turned off.
If the indicator light flashes when the
sonar system is not turned off, it may
indicate a malfunction in the sonar system.
WARNING
If the engine is not running or is turned off
while driving, the power assist for the
steering will not work. Steering will be
harder to operate.
The power assisted steering uses a hy-
draulic pump, driven by the engine, to
assist steering.
If the engine stops or the drive belt breaks,
you will still have control of the vehicle.
However, much greater steering effort is
needed, especially in sharp turns and at
low speeds.
POWER STEERING

WARNING
Do not pump the brake pedal. Doing so may
result in increased stopping distances.
Self-test feature
The ABS includes electronic sensors, elec-
tric pumps, hydraulic solenoids and a
computer. The computer has a built-in
diagnostic feature that tests the system
each time you start the engine and move
the vehicle at a low speed in forward or
reverse. When the self-test occurs, you may
hear a“clunk” noise and/or feel a pulsa-
tion in the brake pedal. This is normal and
does not indicate a malfunction. If the
computer senses a malfunction, it switches
the ABS off and illuminates the ABS
warning light on the instrument panel.
The brake system then operates normally,
but without anti-lock assistance.
If the ABS warning light illuminates during
the self-test or while driving, have the
vehicle checked by an INFINITI retailer.
Normal operation
The ABS operates at speeds above 3 to 6
MPH (5 to 10 km/h).
When the ABS senses that one or more
wheels are close to locking up, the actuator
rapidly applies and releases hydraulic
pressure. This action is similar to pumping
the brakes very quickly. You may feel a
pulsation in the brake pedal and hear a
noise from under the hood or feel a
vibration from the actuator when it is
operating. This is normal and indicates
that the ABS is operating properly. How-
ever, the pulsation may indicate that road
conditions are hazardous and extra care is
required while driving. The Vehicle Dynamic Control (VDC) system
uses various sensors to monitor driver
inputs and vehicle motion. Under certain
driving conditions, the VDC system helps
to perform the following functions.
.
Controls brake pressure to reduce
wheel slip on one slipping drive wheel
so power is transferred to a non
slipping drive wheel on the same axle.
. Controls brake pressure and engine
output to reduce drive wheel slip based
on vehicle speed (traction control func-
tion).
. Controls brake pressure at individual
wheels and engine output to help the
driver maintain control of the vehicle in
the following conditions:
— understeer (vehicle tends to not
follow the steered path despite
increased steering input)
— oversteer (vehicle tends to spin due
to certain road or driving condi-
tions).
The VDC system can help the driver to
maintain control of the vehicle, but it
cannot prevent loss of vehicle control in
all driving situations.
When the VDC system operates, the VDC
warning light
in the instrument panel
Starting and driving5-55
VEHICLE DYNAMIC CONTROL (VDC) SYSTEM

5-56Starting and driving
flashes so note the following:
.The road may be slippery or the system
may determine some action is required
to help keep the vehicle on the steered
path.
. You may feel a pulsation in the brake
pedal and hear a noise or vibration
from under the hood. This is normal
and indicates that the VDC system is
working properly.
. Adjust your speed and driving to the
road conditions.
See “Vehicle Dynamic Control (VDC) warn-
ing light” (P.2-17).
If a malfunction occurs in the system, the
VDC warning light
illuminates in the
instrument panel. The VDC system auto-
matically turns off.
The VDC OFF switch is used to turn off the
VDC system. The VDC off indicator
illuminates to indicate the VDC system is
off. When the VDC switch is used to turn off
the system, the VDC system still operates
to prevent one drive wheel from slipping by
transferring power to a non slipping drive
wheel. The VDC warning light
flashes if
this occurs. All other VDC functions are off,
and the VDC warning light
will not
flash. The VDC system is automatically reset to on when the ignition switch is
placed in the off position then back to the
on position.
See
“Vehicle Dynamic Control (VDC) warn-
ing light” (P.2-17) and “Vehicle Dynamic
Control (VDC) off indicator light” (P.2-19).
The computer has a built-in diagnostic
feature that tests the system each time you
start the engine and move the vehicle
forward or in reverse at a slow speed.
When the self-test occurs, you may hear a
“clunk” noise and/or feel a pulsation in the
brake pedal. This is normal and is not an
indication of a malfunction.
WARNING
. The VDC system is designed to help the
driver maintain stability but does not
prevent accidents due to abrupt steering
operation at high speeds or by careless
or dangerous driving techniques. Reduce
vehicle speed and be especially careful
when driving and cornering on slippery
surfaces and always drive carefully.
. Do not modify the vehicle’s suspension.
If suspension parts such as shock
absorbers, struts, springs, stabilizer bars, bushings and wheels are not
INFINITI recommended for your vehicle
or are extremely deteriorated, the VDC
system may not operate properly. This
could adversely affect vehicle handling
performance, and the VDC warning light
may illuminate.
. If brake related parts such as brake
pads, rotors and calipers are not INFINITI
recommended or are extremely deterio-
rated, the VDC system may not operate
properly and the VDC warning light
may illuminate.
. If engine control related parts are not
INFINITI recommended or are extremely
deteriorated, the VDC warning light
may illuminate.
. When driving on extremely inclined
surfaces such as higher banked corners,
the VDC system may not operate prop-
erly and the VDC warning light
may
illuminate. Do not drive on these types
of roads.
. When driving on an unstable surface
such as a turntable, ferry, elevator or
ramp, the VDC warning light
may
illuminate. This is not a malfunction.
Restart the engine after driving onto a

the windows, move the heater or air
conditioner temperature control to
maximum hot and fan control to high
speed.
3. If engine overheating is caused by climbing a long hill on a hot day, run
the engine at a fast idle (approximately
1,500 rpm) until the temperature gauge
indication returns to normal.
4. Get out of the vehicle. Look and listen for steam or coolant escaping from the
radiator before opening the hood. (If
steam or coolant is escaping, turn off
the engine.) Do not open the hood
further until no steam or coolant can be
seen.
5. Open the engine hood.
WARNING
If steam or water is coming from the engine,
stand clear to prevent getting burned.
6. Visually check drive belts for damage or looseness. Also check if the cooling fan
is running. The radiator hoses and
radiator should not leak water. If cool-
ant is leaking or the cooling fan does not run, stop the engine.
WARNING
Be careful not to allow your hands, hair,
jewelry or clothing to come into contact
with, or get caught in, engine belts or the
engine cooling fan. The engine cooling fan
can start at any time.
7. After the engine cools down, check the
coolant level in the reservoir tank with
the engine running. Add coolant to the
reservoir tank if necessary. Have your
vehicle repaired at the nearest INFINITI
retailer.
If needed, Roadside Assistance is avail-
able. Please see your Warranty Information
Booklet or Roadside Assistance I.D. Card
for the toll-free number to call (U.S.) or
Warranty & Roadside Assistance Informa-
tion Booklet (Canada). When towing your vehicle, all State (Pro-
vincial in Canada) and local regulations for
towing must be followed. Incorrect towing
equipment could damage your vehicle.
Towing instructions are available from an
INFINITI retailer. Local service operators are
familiar with the applicable laws and
procedures for towing. To assure proper
towing and to prevent accidental damage
to your vehicle, INFINITI recommends that
you have a service operator tow your
vehicle. It is advisable to have the service
operator carefully read the following pre-
cautions.
WARNING
.
Never ride in a vehicle that is being
towed.
. Never get under your vehicle after it has
been lifted by a tow truck.
CAUTION
.When towing, make sure that the trans-
mission, axles, steering system and
powertrain are in working condition. If
any unit is damaged, dollies must be
In case of emergency6-11
TOWING YOUR VEHICLE

8 Maintenance and do-it-yourself
Maintenance requirement.................................... 8-3
Scheduled maintenance .................................. 8-3
General maintenance....................................... 8-3
Where to go for service ................................... 8-3
General maintenance ........................................... 8-4 Explanation of maintenance items ................... 8-4
Maintenance precautions ..................................... 8-6
Engine compartment check locations ................... 8-8 VQ25HR/VQ37VHR engine ............................... 8-8
Engine cooling system ......................................... 8-9
Checking engine coolant level ....................... 8-10
Changing engine coolant ............................... 8-10
Engine oil .......................................................... 8-11
Checking engine oil level............................... 8-11
Changing engine oil and filter ....................... 8-11
Automatic transmission fluid ............................. 8-14
Power steering fluid........................................... 8-14
Brake and clutch fluid ....................................... 8-15 Brake fluid .................................................... 8-15
Clutch fluid (if so equipped) .......................... 8-15
Window washer fluid ......................................... 8-16 Battery .............................................................. 8-17
Coupe .......................................................... 8-17
Sedan and coupe......................................... 8-17
Jump starting ............................................... 8-18
Variable voltage control system......................... 8-19
Drive belts ........................................................ 8-19
Spark plugs ...................................................... 8-20 Replacing spark plugs ................................. 8-20
Air cleaner ........................................................ 8-21
Windshield wiper blades ................................... 8-22
Cleaning ...................................................... 8-22
Replacing..................................................... 8-22
Brakes .............................................................. 8-23
Self-adjusting brakes ................................... 8-23
Brake pad wear warning .............................. 8-23
Fuses ................................................................ 8-24
Engine compartment .................................... 8-24
Passenger compartment............................... 8-25
Intelligent Key battery replacement ................... 8-26

8-6Maintenance and do-it-yourself
dripping from the air conditioner after use
is normal. If you should notice any leaks or
if gasoline fumes are evident, check for the
cause and have it corrected immediately.
Power steering fluid level* and lines:
Check the level when the fluid is cold,
with the engine off. Check the lines for
proper attachment, leaks, cracks, etc.
Radiator and hoses:Check the front of the
radiator and clean off any dirt, insects,
leaves, etc., that may have accumulated.
Make sure the hoses have no cracks,
deformation, rot or loose connections.
Underbody: The underbody is frequently
exposed to corrosive substances such as
those used on icy roads or to control dust.
It is very important to remove these
substances, otherwise rust will form on
the floor pan, frame, fuel lines and around
the exhaust system. At the end of winter,
the underbody should be thoroughly
flushed with plain water, being careful to
clean those areas where mud and dirt may
accumulate. For additional information,
see “Cleaning exterior” (P.7-2).
Windshield washer fluid*: Check that there
is adequate fluid in the reservoir. When performing any inspection or main-
tenance work on your vehicle, always take
care to prevent serious accidental injury to
yourself or damage to the vehicle. The
following are general precautions which
should be closely observed.
WARNING
.
Park the vehicle on a level surface, apply
the parking brake securely and block the
wheels to prevent the vehicle from
moving. For manual transmission mod-
els, move the shift lever to N (Neutral).
For automatic transmission models,
move the selector lever to P (Park).
. Be sure the ignition switch is in the OFF
or LOCK position when performing any
parts replacement or repairs.
. Never connect or disconnect the battery
or any transistorized component while
the ignition switch is in the ON position.
. Never leave the engine or automatic
transmission related component har-
nesses disconnected while the ignition
switch is in the ON position.
. If you must work with the engine
running, keep your hands, clothing, hair and tools away from moving fans, belts
and any other moving parts.
. It is advisable to secure or remove any
loose clothing and remove any jewelry,
such as rings, watches, etc. before
working on your vehicle.
. Always wear eye protection whenever
you work on your vehicle.
. If you must run the engine in an
enclosed space such as a garage, be
sure there is proper ventilation for
exhaust gases to escape.
. Never get under the vehicle while it is
supported only by a jack. If it is
necessary to work under the vehicle,
support it with safety stands.
. Keep smoking materials, flame and
sparks away from fuel tank and the
battery.
. Your vehicle is equipped with an auto-
matic engine cooling fan. It may come on
at any time without warning, even if the
ignition key is in the OFF position and
the engine is not running. To avoid
injury, always disconnect the negative
battery cable before working near the
fan.
MAINTENANCE PRECAUTIONS