engine INFINITI G37 2012 Repair Manual

Black plate (337,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]M
4 (4th), M
3 (3rd) and M
2 (2nd): GUID-D73A39BF-43C8-459F-9C24-47B7F579C407
Use these positions for hill climbing or
engine braking on downhill grades. M
1 (1st): GUID-D73A39BF-43C8-459F-9C24-47B7F579C407
Use this position when climbing steep hills
slowly or driving slowly through deep
snow, or for maximum engine braking on
steep downhill grades.
. Remember not to drive at high speeds
for extended periods of time in lower
than 7th gear. This reduces fuel econ-
omy.
. Moving the selector lever rapidly to the
same side twice will shift the ranges in
succession.
. In the manual shift mode, the transmis-
sion may not shift to the selected gear.
This helps maintain driving perfor-
mance and reduces the chance of
vehicle damage or loss of control.
When this situation occurs, the Auto-
matic Transmission (AT) position indi-
cator light (on the dot matrix liquid
crystal display) will blink and the
chime will sound.
. In the manual shift mode, the transmis-
sion automatically shifts down to 1st
gear before the vehicle comes to a stop. When accelerating again, it is
necessary to shift up to the desired
range.
Accelerator downshift — In D (Drive)
position — GUID-E91E596E-66F0-4B37-B592-BD241B7B4C14
For passing or hill climbing, fully depress
the accelerator pedal to the floor. This
shifts the transmission down into the lower
gear, depending on the vehicle speed.
Fail-safe GUID-852B8196-DDA1-4E5B-AA0C-3EDBD2A757EE
When the fail-safe operation occurs, note
that the transmission will be locked in any
of the forward gears according to the
condition.
If the vehicle is driven under extreme
conditions, such as excessive wheel spin-
ning and subsequent hard braking, the
fail-safe system may be activated. This will
occur even if all electrical circuits are
functioning properly. In this case, push
the ignition switch to the OFF position and
wait for 3 seconds. Then push the ignition
switch back to the ON position. The vehicle
should return to its normal operating
condition. If it does not return to its
normal operating condition, have an
INFINITI retailer check the transmission
and repair if necessary. SSD0598
Shift lock release GUID-510517F2-CF6A-4A19-852F-4269CA8EA9EA
If the battery charge is low or discharged,
the selector lever may not be moved from
the P (Park) position even with the brake
pedal depressed and the selector lever
button pushed.
To move the selector lever, perform the
following procedure:
1. Push the ignition switch to the OFF or
LOCK position.
2. Apply the parking brake.
3. Remove the shift lock cover
* A
using a
suitable tool.
Starting and driving
5-17

Black plate (338,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]5-18 Starting and driving4. Push down the shift lock
* B
as
illustrated.
5. Push the selector lever button
* C
and
move the selector lever to N (Neutral)
position
* D
while holding down the
shift lock.
Now the vehicle may be moved to the
desired location.
If the lever cannot be moved out of P
(Park), have an INFINITI retailer check the
automatic transmission system as soon as
possible.
Adaptive shift control (ASC) GUID-F11A26ED-2920-48C5-B33E-4D8F7EBFD667
The adaptive shift control system automa-
tically operates when the transmission is
in the "D" (drive) and "DS" (Drive Sport)
position and selects an appropriate gear
depending on the road conditions such as
uphill, downhill or curving roads.
Control on uphill and curving roads: GUID-D73A39BF-43C8-459F-9C24-47B7F579C407
A low gear is maintained that suits the
degree of the slope or curve to allow
smooth driving with a small number of
shifts.
Control on downhill roads: GUID-D73A39BF-43C8-459F-9C24-47B7F579C407
The adaptive shift control system shifts to
a low gear that suits the degree of the slope, and uses the engine braking to
reduce the number of times that the brake
must be used.
Control on winding roads: GUID-D73A39BF-43C8-459F-9C24-47B7F579C407
A low gear is maintained on continuous
curves that involve repeated acceleration
and deceleration, so that smooth accelera-
tion is available instantly when the accel-
erator pedal is depressed.
NOTE:
. Adaptive shift control may not operate
when the transmission oil temperature
is low immediately after the start of
driving or when it is very hot.
. During some driving situations, hard
braking for example, the adaptive shift
control may automatically operate. The
transmission may automatically shift
to a lower gear for engine braking. This
increases engine speed but not vehicle
speed. Vehicle speed is controlled by
the accelerator pedal when the vehicle
is in the Adaptive shift control mode.
. When the adaptive shift control oper-
ates, the transmission sometimes
maintains a lower gear for a longer
period of time than when adaptive shift
control is not operating. Engine speed will be higher for a specific vehicle
speed while ASC system is operating
than when ASC is not operating.
MANUAL TRANSMISSION GUID-55540C91-1BB1-4931-BE6A-9E10E00B9B1A
WARNING . Do not downshift abruptly on slippery
roads. This may cause a loss of control.
. Do not over-rev the engine when shifting
to a lower gear. This may cause a loss of
control or engine damage.
CAUTION . Do not rest your foot on the clutch pedal
while driving. This may damage the
clutch.
. Fully depress the clutch pedal before
shifting to help prevent transmission
damage.
. Stop your vehicle completely before
shifting into R (Reverse).
. When the vehicle is stopped for a period
of time, for example at a stop light, shift
to N (Neutral) and release the clutch

Black plate (340,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]5-20 Starting and drivingFor normal acceleration in low altitude
areas [less than 4,000 ft (1,219 m)]: Gear change MPH (km/h)
1st to 2nd 8 (13)
2nd to 3rd 16 (25)
3rd to 4th 25 (40)
4th to 5th 28 (45)
5th to 6th 33 (53)
For quick acceleration in low altitude areas
or in high altitude areas [over 4,000 ft
(1,219 m)]: Gear change MPH (km/h)
1st to 2nd 15 (24)
2nd to 3rd 25 (40)
3rd to 4th 40 (64)
4th to 5th 45 (72)
5th to 6th 50 (80)
Suggested maximum speed in each
gear GUID-D14FAF4F-7BC9-464E-8C76-E8C63852DF70
Downshift to a lower gear if the engine is
not running smoothly, or if you need to
accelerate.
Do not exceed the maximum suggested
speed (shown below) in any gear. For level
road driving, use the highest gear sug-
gested for that speed. Always observe
posted speed limits, and drive according to the road conditions, which will ensure
safe operation. Do not over-rev the engine
when shifting to a lower gear as it may
cause engine damage or loss of vehicle
control.
Sedan: GUID-D73A39BF-43C8-459F-9C24-47B7F579C407
Gear MPH (km/h)
1st 39 (63)
2nd 64 (103)
3rd 92 (148)
4th —
5th —
6th —
Coupe: GUID-D73A39BF-43C8-459F-9C24-47B7F579C407
Gear MPH (km/h)
1st 39 (63)
2nd 65 (104)
3rd 93 (149)
4th —
5th —
6th — GUID-B671B551-007F-44F6-9BF0-FDB3397C7F83
WARNING . Be sure the parking brake is fully
released before driving. Failure to do so
can cause brake failure and lead to an
accident.
. Do not release the parking brake from
outside the vehicle.
. Do not use the gear shift in place of the
parking brake. When parking, be sure
the parking brake is fully engaged.
. Do not leave children unattended in a
vehicle. They could release the parking
brake and cause an accident.PARKING BRAKE

Black plate (341,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]SPA2331
AUTOMATIC TRANSMISSION MOD-
ELS GUID-9B4966BE-4345-4AC1-BBEA-9F94224C5FF3
To apply: Fully depress the parking brake
pedal
* 1
.
To release:
1. Firmly apply the foot brake
* 2
.
2. Depress the parking brake pedal
* 1
and the parking brake will be released.
3. Before driving, be sure the brake
warning light goes out. SPA2110
MANUAL TRANSMISSION MODELS GUID-52C57BFB-F98A-4B0F-8265-CF918A83AFE8
To apply: Pull the parking brake lever up
* 1
.
To release:
1. Firmly apply the foot brake.
2. While pulling up on the parking brake
lever slightly, push the button
* 2
and
lower the lever completely
* 3
.
3. Before driving, be sure the brake
warning light goes out. GUID-158AC6D4-B1C3-478A-BF22-73F1C3BBD4CD
PRECAUTIONS ON CRUISE CONTROL GUID-C59BE6DC-8633-46BC-9275-C10A5DF6CA64
. If the cruise control system malfunc-
tions, it will cancel automatically. The
SET indicator on the dot matrix crystal
display will then blink to warn the
driver.
. If the engine coolant temperature be-
comes excessively high, the cruise
control system will be canceled auto-
matically.
. If the SET indicator blinks, turn the
cruise control main switch off and have
the system checked by your INFINITI
retailer.
. The SET indicator may sometimes blink
when the cruise control main switch is
turned ON while pushing the ACCELER-
ATE/RESUME, COAST/SET or CANCEL
switch. To properly set the cruise
control system, perform the steps
below in the order indicated.
WARNING Do not use the cruise control when driving
under the following conditions:
. when it is not possible to keep the
vehicle at a set speed
Starting and driving
5-21CRUISE CONTROL

Black plate (342,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]5-22 Starting and driving. in heavy traffic or in traffic that varies in
speed
. on winding or hilly roads
. on slippery roads (rain, snow, ice, etc.)
. in very windy areas
Doing so could cause a loss of vehicle
control and result in an accident.
CAUTIONOn manual transmission models, do not
shift into N (Neutral) without depressing the
clutch pedal when the cruise control is set.
Should this occur, depress the clutch pedal
and turn the main switch off immediately.
Failure to do so may cause engine damage. SSD0600
1. ACCELERATE/RESUME switch
2. COAST/SET switch
3. CANCEL switch
4. MAIN (ON·OFF) switch
CRUISE CONTROL OPERATIONS GUID-FEFB0214-0115-446A-8D35-5777F46212FE
The cruise control allows driving at a speed
between 25 to 89 MPH (40 to 144 km/h)
without keeping your foot on the accel-
erator pedal.
To turn on the cruise control, push the
MAIN switch on. The CRUISE indicator will
come on.
To set cruising speed, accelerate your
vehicle to the desired speed, push the COAST/SET switch and release it. (The
CRUISE SET indicator will come on in the
instrument panel.) Take your foot off the
accelerator pedal. Your vehicle will main-
tain the set speed.
. To pass another vehicle, depress the
accelerator pedal. When you release
the pedal, the vehicle will return to the
previously set speed.
. The vehicle may not maintain the set
speed on winding or hilly roads. If this
happens, drive without the cruise con-
trol.
To cancel the preset speed, follow any of
these methods:
a) Push the CANCEL button. The SET
indicator will go out.
b) Tap the brake pedal. The SET indicator
will go out.
c) Move the selector lever to the N
(Neutral) position. The SET indicator
will go out.
d) Turn the MAIN switch off. Both the
CRUISE indicator and SET indicator
will go out.
. If you depress the brake pedal while
pushing the ACCELERATE/RESUME or
COAST/SET switch and reset at the

Black plate (352,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]5-32 Starting and driving4. Indicates your vehicle
5. Set vehicle speed indicator:
Indicates the set vehicle speed.
For Canadian models, the speed is
displayed in km/h.
6. Intelligent Cruise Control system warn-
ing light (orange):
The light comes on if there is a
malfunction in the ICC system. SSD0607
When the ignition switch is pushed to the
ON position, the indicators come on as
illustrated to check for a burned-out bulb,
and it turns off when the engine is started. SSD0608
Operating vehicle-to-vehicle dis-
tance control mode GUID-D2B19CB2-1651-4A2D-8ABB-3279548D3F0C
To turn on the cruise control, quickly push
and release the MAIN switch
* A
on. The
cruise indicator light, set distance indicator
and set vehicle speed indicator come on
and in a standby state for setting.

Black plate (357,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]SSD0613D
. The distance to the vehicle ahead will
change according to the vehicle speed.
The higher the vehicle speed, the
longer the distance.
. If the engine is stopped, the set
distance becomes “ long ” . (Each time
the engine is started, the initial setting becomes “ long ” .)
Approach warning GUID-9DF856C8-B8D2-4947-ADDC-8B457BD4AE6E
If your vehicle comes closer to the vehicle
ahead due to rapid deceleration of that
vehicle or if another vehicle cuts in, the
system warns the driver with the chime and ICC system display. Decelerate by
depressing the brake pedal to maintain a
safe vehicle distance if:
. The chime sounds.
. The vehicle ahead detection and set
distance indicator blink.
The warning chime may not sound in some
cases when there is a short distance
between vehicles. Some examples are:
. When the vehicles are traveling at the
same speed and the distance between
vehicles is not changing
. When the vehicle ahead is traveling
faster and the distance between vehi-
cles is increasing
. When a vehicle cuts in near your vehicle
The warning chime will not sound when:
. Your vehicle approaches other vehicles
that are parked or moving slowly.
. The accelerator pedal is depressed,
overriding the system.
Starting and driving
5-37

Black plate (359,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]. When strong light (sunlight, etc.) is
directly shining on the front of the
vehicle
Action to take: GUID-D73A39BF-43C8-459F-9C24-47B7F579C407
When the conditions listed above are no
longer present, turn the system off using
the Intelligent Cruise Control MAIN Switch.
Turn the ICC system back on to use the
system. SSD0615
Condition B: GUID-D73A39BF-43C8-459F-9C24-47B7F579C407
When the sensor window is dirty, making it
impossible to detect a vehicle ahead, the
ICC system is automatically canceled.
The chime sounds and the ICC system
warning light (orange) will come on and the
“ CLEAN SENSOR ” indicator will appear.
Action to take: GUID-D73A39BF-43C8-459F-9C24-47B7F579C407
If the warning light comes on, park the
vehicle in a safe place, turn the engine off.
Clean the sensor window with a soft cloth
and then perform the settings again. SSD0616
Condition C: GUID-D73A39BF-43C8-459F-9C24-47B7F579C407
When the ICC system is not operating
properly, the chime sounds and the ICC
system warning light (orange) will come
on.
Action to take: GUID-D73A39BF-43C8-459F-9C24-47B7F579C407
If the warning light comes on, park the
vehicle in a safe place. Turn the engine off,
restart the engine, resume driving and set
the ICC system again.
If it is not possible to set the system or the
indicator stays on, it may indicate that the
ICC system is malfunctioning. Although
the vehicle is still driveable under normal
Starting and driving
5-39

Black plate (364,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]5-44 Starting and driving2. Push and hold the COAST/SET switch.
Release the switch when the vehicle
slows down to the desired speed.
3. Push, then quickly release the COAST/
SET switch. Each time you do this, the
set speed will decrease by about 1 MPH
(1.6 km/h).
To resume the preset speed, push and
release the ACCELERATE/RESUME switch.
The vehicle will resume the last set
cruising speed when the vehicle speed is
over 25 MPH (40 km/h).
Automatic cancellation GUID-63081811-BA0B-40B1-814B-F72A06D035E7
A chime sounds under the following con-
ditions and the control is automatically
canceled.
. When the vehicle slows down more
than 8 MPH (13 km/h) below the set
speed
. When the vehicle speed falls below
approximately 20 MPH (32 km/h)
. When the selector lever is not in the D
(Drive), DS (Drive Sport) or manual shift
mode
. When the VDC operates (including the
traction control system)
. When a tire slips SSD0621
Warning light GUID-27FCB899-B77E-4C6C-B015-69A382A806BB
When the system is not operating properly,
the chime sounds and the system warning
light (orange) will come on.
Action to take: GUID-D73A39BF-43C8-459F-9C24-47B7F579C407
If the warning light comes on, park the
vehicle in a safe place. Turn the engine off,
restart the engine, resume driving and then
perform the setting again.
If it is not possible to set or the indicator
stays on, it may indicate that the system is
malfunctioning. Although the vehicle is
still driveable under normal conditions,
have the vehicle checked at an INFINITI retailer.
PREVIEW FUNCTION (for Intelligent
Cruise Control system equipped
models) GUID-96A87E96-2026-4122-93F8-399D8C784D61
The ICC system with the preview function
identifies the need to apply emergency
braking by sensing the vehicle ahead in
the same lane and the distance to the
vehicle ahead and relative speed from it, it
applies the brake pre-pressure before the
driver depresses the brake pedal and helps
improve brake response by reducing pedal
free play.
For more details, see “ Brake assist ” (P.5-
52).

Black plate (365,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]GUID-742506CE-AA4A-4501-A4C7-5A0E00772DE6
CAUTIONDuring the first 1,200 miles (2,000 km),
follow these recommendations to obtain
maximum engine performance and ensure
the future reliability and economy of your
new vehicle.
Failure to follow these recommendations
may result in shortened engine life and
reduced engine performance.
. Avoid driving for long periods at con-
stant speed, either fast or slow. Do not
run the engine over 4,000 rpm.
. Do not accelerate at full throttle in any
gear.
. Avoid quick starts.
. Avoid hard braking as much as possi-
ble. GUID-DE80132E-86B2-4CC9-A3AE-29D2B23A6BF7
. Accelerate slowly and smoothly. Main-
tain cruising speeds with a constant
accelerator position.
. Drive at moderate speeds on the high-
way.
. Avoid unnecessary stopping and brak-
ing. Keep a safe distance behind other
vehicles.
. Select a gear range suitable to road
conditions.
. Avoid unnecessary prolonged engine
idling.
. Keep your engine tuned up.
. Follow the recommended periodic main-
tenance schedule.
. Keep the tires inflated at the correct
pressure. Improper tire pressure will
increase wear and waste fuel.
. Make sure the front wheels are properly
aligned. Improper alignment will cause
premature tire wear and lower fuel
economy.
. Climate control operation lowers fuel
economy. Use the air conditioner only
when necessary.
. When cruising at highway speeds, it is
more economical to use the air condi-
tioner and leave the windows closed to
reduce drag. GUID-EF560502-444A-4256-8716-FF357EB68302
SSD0336
The AWD warning light is located in the
meter.
The AWD warning light comes on when the
ignition switch is pushed to the ON
position. It turns off soon after the engine
is started.
Starting and driving
5-45BREAK-IN SCHEDULE INCREASING FUEL ECONOMY ALL-WHEEL DRIVE (AWD) (if so equipped)