transmission INFINITI G37 2012 Service Manual

Black plate (366,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]5-46 Starting and drivingIf any malfunction occurs in the AWD
system while the engine is running, the
warning light will come on.
The warning light may blink rapidly (about
twice per second) while trying to free a
stuck vehicle due to high power train oil
temperature. The driving mode may change
to two-wheel drive. If the warning light
blinks rapidly during operation, stop the
vehicle with the engine idling in a safe
place immediately. Then if the light goes
off after a while, you can continue driving.
A large difference between the diameters
of front and rear wheels will make the
warning light blink slowly (about once per
two seconds). Pull off the road in a safe
area, and idle the engine. Check that all
tire sizes are the same, tire pressure is
correct and tires are not worn.
If the warning light is blinking after the
above operation, have your vehicle
checked by an INFINITI retailer as soon as
possible.
WARNING. For AWD equipped vehicles, do not
attempt to raise two wheels off the ground and shift the transmission to
any drive or reverse position with the
engine running. Doing so may result in
drivetrain damage or unexpected vehicle
movement which could result in serious
vehicle damage or personal injury.
. Do not attempt to test an AWD equipped
vehicle on a 2-wheel dynamometer (such
as the dynamometers used by some
states for emissions testing) or similar
equipment even if the other two wheels
are raised off the ground. Make sure that
you inform the test facility personnel
that your vehicle is equipped with AWD
before it is placed on a dynamometer.
Using the wrong test equipment may
result in drivetrain damage or unex-
pected vehicle movement which could
result in serious vehicle damage or
personal injury.
CAUTION . Do not operate the engine on a free
roller when any of the wheels are raised.
. If the warning light comes on while
driving there may be a malfunction in the AWD system. Reduce the vehicle
speed and have your vehicle checked by
an INFINITI retailer as soon as possible.
. If the warning light remains on after the
above operation, have your vehicle
checked by an INFINITI retailer as soon
as possible.
. The power train may be damaged if you
continue driving with the warning light
blinking.

Black plate (367,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]GUID-C8DF6266-360E-49F0-8414-C6DFBBF885DB
SD1006MA
WARNING. Do not stop or park the vehicle over
flammable materials such as dry grass,
waste paper or rags. They may ignite and
cause a fire.
. Never leave the engine running while the
vehicle is unattended.
. Do not leave children unattended inside
the vehicle. They could unknowingly
activate switches or controls. Unat-
tended children could become involved
in serious accidents. . Safe parking procedures require that
both the parking brake be applied and
the transmission placed into P (Park) for
Automatic Transmission (AT) model or in
an appropriate gear for Manual Trans-
mission (MT) model. Failure to do so
could cause the vehicle to move un-
expectedly or roll away and result in an
accident.
. Make sure the automatic transmission
selector lever has been pushed as far
forward as it can go and cannot be
moved without depressing the foot
brake pedal. 1. Firmly apply the parking brake.
2. Automatic transmission models:
Move the selector lever to the P (Park)
position.
Manual transmission models:
Place the shift lever in the R (Reverse)
gear. When parking on an uphill grade,
place the shift lever in the 1st gear.
3. To help prevent the vehicle from rolling
into the street when parked on a
sloping drive way, it is a good practice
to turn the wheels as illustrated. .
HEADED DOWNHILL WITH CURB:
* 1
Turn the wheels into the curb and
move the vehicle forward until the
curb side wheel gently touches the
curb. .
HEADED UPHILL WITH CURB:
* 2
Turn the wheels away from the curb
and move the vehicle back until the
curb side wheel gently touches the
curb. .
HEADED UPHILL OR DOWNHILL, NO
CURB:
* 3
Turn the wheels toward the side of
the road so the vehicle will move
away from the center of the road if it
moves.
Starting and driving
5-47PARKING/PARKING ON HILLS

Black plate (383,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]the tires and increase the likelihood of
tire failure. Serious vehicle damage
could occur and may lead to an accident
and could result in serious personal
injury. Check the tire pressure for all
four tires. Adjust the tire pressure to the
recommended COLD tire pressure shown
on the Tire and Loading Information
label to turn the low tire pressure
warning light OFF. If the light still
illuminates while driving after adjusting
the tire pressure, a tire may be flat. If
you have a flat tire, replace it with a
spare tire as soon as possible.
. When a spare tire is mounted or a wheel
is replaced, the TPMS will not function
and the low tire pressure warning light
will flash for approximately 1 minute.
The light will remain on after 1 minute.
Contact your INFINITI retailer as soon as
possible for tire replacement and/or
system resetting.
. Replacing tires with those not originally
specified by INFINITI could affect the
proper operation of the TPMS.
. Do not inject any tire liquid or aerosol
tire sealant into the tires, as this may
cause a malfunction of the tire pressure sensors.
CHANGING A FLAT TIRE GUID-17392640-59D1-4ABE-91EE-2C0B6371262B
If you have a flat tire, follow the instruc-
tions below.
Stopping the vehicle GUID-D581A789-AFAC-489C-91F1-2711C20E7205
1. Safely move the vehicle off the road
and away from traffic.
2. Turn on the hazard warning flashers.
3. Park on a level surface and apply the
parking brake. Move the selector lever
to the P (Park) position (Automatic
transmission models). Move the shift
lever to the R (Reverse) gear (Manual
transmission models).
4. Turn off the engine.
5. Raise the hood to warn other traffic,
and to signal professional road assis-
tance personnel that you need assis-
tance.
6. Have all passengers get out of the
vehicle and stand in a safe place, away
from traffic and clear of the vehicle. WARNING . Make sure the parking brake is securely
applied and the manual transmission is
shifted into R (Reverse), or the automatic
transmission into P (Park).
. Never change tires when the vehicle is
on a slope, ice or slippery areas. This is
hazardous.
. Never change tires if oncoming traffic is
close to your vehicle. Wait for profes-
sional road assistance.
In case of emergency
6-3

Black plate (389,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ] SCE0653
WARNINGAlways follow the instructions below. Failure
to do so could result in damage to the
charging system and cause personal injury.
1. If the booster battery is in another
vehicle
* A
, position the two vehicles
(
* A
and
* B
) to bring their batteries
into close proximity to each other.
Do not allow the two vehicles to touch.
2. Apply parking brake. Move the selector
lever to the P (Park) position (Automatic transmission models). Move the shift
lever to the N (Neutral) position (Man-
ual transmission models). Switch off all
unnecessary electrical systems (light,
heater, air conditioner, etc.).
3. Remove vent caps on the battery (if so
equipped). Cover the battery with a
firmly wrung out moist cloth
* C
to
reduce explosion hazard.
4. Connect jumper cables in the sequence
as illustrated (
* 1
?
* 2
?
* 3
?
* 4
).CAUTION . Always connect positive (+) to positive
(+) and negative ( − ) to body ground (as
illustrated) — not to the battery.
. Make sure the jumper cables do not
touch moving parts in the engine com-
partment and that clamps do not contact
any other metal.
5. Start the engine of the booster vehicle
* A
and let it run for a few minutes.
6. Keep the engine speed of the booster
vehicle
* A
at about 2,000 rpm, and
start the engine of the vehicle being
jump started
* B
.
CAUTION Do not keep the starter motor engaged for
more than 10 seconds. If the engine does
not start right away, push the ignition
switch to the OFF position and wait 10
seconds before trying again.
7. After starting your engine, carefully
disconnect the negative cable and then
In case of emergency
6-9

Black plate (390,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]6-10 In case of emergencythe positive cable (
* 4
?
* 3
?
* 2
?
* 1
).
8. Replace the vent caps (if so equipped).
Be sure to dispose of the cloth used to
cover the vent holes as it may be
contaminated with corrosive acid.
9. Put the battery cover on. GUID-14A00CCC-06C0-406E-A0D2-AA920BF7ACC8
Do not attempt to start the engine by
pushing.
CAUTION . Automatic transmission models cannot
be push-started or tow-started. Attempt-
ing to do so may cause transmission
damage.
. Three way catalyst equipped models
should not be started by pushing since
the three way catalyst may be damaged.
. Never try to start the vehicle by towing
it; when the engine starts, the forward
surge could cause the vehicle to collide
with the tow vehicle.
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). GUID-4F097083-26E2-4D86-B572-AFD615B83F6E
CAUTION . Do not continue to drive if your vehicle
overheats. Doing so could cause engine
damage or a vehicle fire.
. To avoid the danger of being scalded,
never remove the radiator cap while the
engine is still hot. When the radiator cap
is removed, pressurized hot water will
spurt out, possibly causing serious
injury.
. Do not open the hood if steam is coming
out.
If your vehicle is overheating (indicated by
an extremely high temperature gauge
reading), or if you feel a lack of engine
power, detect abnormal noise, etc., take
the following steps:
1. Move the vehicle safely off the road,
apply the parking brake and move the
selector lever to the P (Park) position
(Automatic transmission models). Move
the shift lever to the N (Neutral)
position (Manual transmission models).
Do not stop the engine.
2. Turn off the climate control. Open allPUSH STARTING IF YOUR VEHICLE OVERHEATS

Black plate (392,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]6-12 In case of emergencyused.
. Always attach safety chains before tow-
ing.
For information about towing your vehicle
behind a recreational vehicle (RV), see
“ Flat towing ” (P.9-23) of this manual.
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). SCE0788
Two-wheel drive models
TOWING RECOMMENDED BY INFINITI GUID-1972A0E5-899D-424B-955B-A23087C49817
Two-Wheel Drive (2WD) models GUID-FE3D3969-5707-4CA8-BD66-27F17FDE5FEF
INFINITI recommends that your vehicle be
towed with the driving (rear) wheels off the
ground or place the vehicle on a flat bed
truck as illustrated.
CAUTION . Never tow automatic transmission mod-
els with the rear wheels on the ground
or four wheels on the ground (forward or
backward), as this may cause serious and expensive damage to the transmis-
sion. If it is necessary to tow the vehicle
with the front wheels raised, always use
towing dollies under the rear wheels.
. When towing rear wheel drive models
with the front wheels on the ground or
on towing dollies: Push the ignition
switch to the ACC or ON position, and
secure the steering wheel in a straight-
ahead position with a rope or similar
device.
. If you have to tow manual transmission

Black plate (393,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]models with the rear wheels on the
ground (if you do not use towing dollies)
or four wheels on the ground:
— Push the ignition switch to the ON
position and turn off all accessories.
— Always release the parking brake.
—
Move the transmission shift lever to
the N (Neutral) position.
— Observe the following restricted
towing speeds and distances for
manual transmission models only: .
Rear wheels on the ground:
Speed: Below 50 MPH (80 km/h)
Distance: Less than 50 miles (80
km) .
Four wheels on the ground:
Speed: Below 70 MPH (112 km/h)
Distance: Less than 500 miles
(800 km)
— If the speed or distance must
necessarily be greater, remove the
propeller shaft before towing to
prevent damage to the transmission. SCE0488
All-wheel drive models
All-Wheel Drive (AWD) models GUID-8E431F7F-D22E-484A-90BA-D840A80CE451
INFINITI recommends that towing dollies be
used when towing your vehicle or the
vehicle be placed on a flat bed truck as
illustrated.
CAUTION Never tow AWD models with any of the
wheels on the ground as this may cause
serious and expensive damage to the
powertrain. VEHICLE RECOVERY (Freeing a stuck
vehicle) GUID-05991B38-9FB8-40E2-8907-B76FEB2747E1
WARNING . Stand clear of a stuck vehicle.
. Do not spin your tires at high speed. This
could cause them to explode and result
in serious injury. Parts of your vehicle
could also overheat and be damaged.
In case of emergency
6-13

Black plate (397,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]. Never tow a vehicle using the vehicle tie
downs or recovery hooks.
. Always pull the cable straight out from
the front of the vehicle. Never pull on the
vehicle at an angle.
. Pulling devices should be routed so they
do not touch any part of the suspension,
steering, brake or cooling systems.
. Pulling devices such as ropes or canvas
straps are not recommended for use in
vehicle towing or recovery.
Rocking a stuck vehicle GUID-D8ABA446-7649-42A5-93FF-7D6260146444
If your vehicle is stuck in sand, snow, mud,
etc., use the following procedure:
1. Turn off the Vehicle Dynamic Control
(VDC) system.
2. Make sure the area in front and behind
the vehicle is clear of obstructions.
3. Turn the steering wheel right and left to
clear an area around the front tires.
4. Slowly rock the vehicle forward and
backward. .
Shift back and forth between R
(reverse) and D (drive) (automatic
transmission models) or 1st (low)
and R (reverse) (manual transmis- sion models). .
Apply the accelerator as little as
possible to maintain the rocking
motion. .
Release the accelerator pedal before
shifting between R and D (automatic
transmission models) or 1st and R
(manual transmission models). .
Do not spin the tires above 35 MPH
(55 km/h).
5. If the vehicle cannot be freed after a
few tries, contact a professional towing
service to remove the vehicle.
In case of emergency
6-17

Black plate (407,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]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

Black plate (411,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]Accelerator pedal: Check the pedal for
smooth operation and make sure the pedal
does not catch or require uneven effort.
Keep the floor mat away from the pedal.
Automatic transmission P (Park) mechan-
ism: On a fairly steep hill, check that your
vehicle is held securely with the selector
lever in the P (Park) position without
applying any brakes.
Brake pedal: Check the pedal for smooth
operation. If the brake pedal suddenly
goes down further than normal, the pedal
feels spongy or the vehicle seems to take
longer to stop, see an INFINITI retailer
immediately. Keep the floor mat away from
the pedal.
Brakes: Check that the brakes do not pull
the vehicle to one side when applied.
Parking brake: Check the parking brake
operation regularly. The vehicle should be
securely held on a fairly steep hill with only
the parking brake applied. If the parking
brake needs adjusted, see an INFINITI
retailer.
Seat belts: Check that all parts of the seat
belt system (for example, buckles, an-
chors, adjuster and retractors) operate
properly and smoothly, and are installed securely. Check the belt webbing for cuts,
fraying, wear or damage.
Seats: Check seat position controls such as
seat adjusters, seatback recliner, etc. to
ensure they operate smoothly and that all
latches lock securely in every position.
Check that the head restraints move up
and down smoothly and that the locks (if
so equipped) hold securely in all latched
positions.
Steering wheel: Check for changes in the
steering conditions, such as excessive free
play, hard steering or strange noises.
Warning lights and chimes: Make sure that
all warning lights and chimes are operating
properly.
Windshield defroster: Check that the air
comes out of the defroster outlets properly
and in sufficient quantity when operating
the heater or air conditioner.
Windshield wiper and washer*: Check that
the wipers and washer operate properly
and that the wipers do not streak.
Under the hood and vehicle GUID-29B64B94-E77F-40DC-A4B2-6B5D542860ED
The maintenance items listed here should
be checked periodically (for example, each
time you check the engine oil or refuel). Battery*: Check the fluid level in each cell.
It should be between the MAX and MIN
lines. Vehicles operated in high tempera-
tures or under severe condition require
frequent checks of the battery fluid level.
Brake fluid level*: Make sure that the
brake fluid level is between the MAX and
MIN lines on the reservoir.
Engine coolant level*: Check the coolant
level when the engine is cold.
Engine drive belts*: Make sure that no belt
is frayed, worn, cracked or oily.
Engine oil level*: Check the level after
parking the vehicle on a level spot and
turning off the engine. Wait more than 15
minutes for the oil to drain back into the oil
pan.
Exhaust system: Make sure there are no
loose supports, cracks or holes. If the
sound of the exhaust seems unusual or
there is a smell of exhaust fumes, im-
mediately have the exhaust system in-
spected by an INFINITI retailer. (See
“ Precautions when starting and driving ”
(P.5-3) for exhaust gas (Carbon monoxide).)
Fluid leaks: Check under the vehicle for
fuel, oil, water or other fluid leaks after the
vehicle has been parked for a while. Water
Maintenance and do-it-yourself
8-5