engine INFINITI G37 2010 Workshop Manual

The ignition switch is equipped with an anti-
theft steering lock device.
In order for the steering wheel to be locked, it
must be turned about 1/8 of a right or left turn
from the straight up position.
To lock the steering wheel, shift the ignition
switch to the LOCK position. To unlock the steer-
ing wheel, push the ignition switch. If the steer-
ing lock release malfunction indicator appears
on the dot matrix liquid crystal display, push the
push-button ignition switch again while lightly
turning the steering wheel right and left. (See
“DOT MATRIX LIQUID CRYSTAL DISPLAY” in the
“2. Instruments and controls” section.)
If the battery of the vehicle is discharged, the
push-button ignition switch cannot be turned
from the LOCK position.
Some indicators and warnings for operation are
displayed on the dot matrix liquid crystal dis-
play between the speedometer and tachometer.
(See “DOT MATRIX LIQUID CRYSTAL DISPLAY” in
the “2. Instruments and controls” section.)
Automatic transmission models The ignition lock is designed so that the ignition
switch position cannot be switched to LOCK
until the selector lever is moved to the P (Park)
position. When the ignition switch cannot be pushed
toward the LOCK position, proceed as follows:
1. Move the selector lever into the P (Park)
position.
2. Push the ignition switch to the OFF posi-
tion. The ignition switch position indicator
will not illuminate.
3. Open the door. The ignition switch will
change to the LOCK position.
The selector lever can be moved from the P (Park)
position if the ignition switch is in the ON posi-
tion and the brake pedal is depressed.
PUSH-BUTTON IGNITION SWITCH
POSITIONS
LOCK (Normal parking position) The ignition switch can only be locked in this
position.
The ignition switch will be unlocked when it is
pushed to the ACC position while carrying the
Intelligent Key or with the Intelligent Key in-
serted in the port.
ACC (Accessories) This position activates electrical accessories
such as the radio, when the engine is not
running. ON (Normal operating position) This position turns on the ignition system and
electrical accessories.
OFF The engine can be turned off without locking
the steering wheel.
The ignition lock is designed so that the ignition
switch cannot be switched to the LOCK position
until the selector lever is moved to the P (Park)
position.
CAUTIONDo not leave the vehicle with the push-button
ignition switch in ACC or ON positions when the
engine is not running for an extended period.
This can discharge the battery.
Emergency engine shut off To shut off the engine in an emergency situation
while driving peform the following procedure:
− Rapidly push the push-button ignition switch
3 consecutive times, or
− Push and hold the push-button ignition for
more than 2 seconds.
Starting and driving
5-9
 —
—
04/21/10—debbie


INTELLIGENT KEY BATTERY DISCHARGE If the battery of the Intelligent Key is almost
discharged, the guide light
 B
of the Intelligent
Key port
 A
blinks and the indicator appears on
the dot matrix liquid crystal display. (See “DOT
MATRIX LIQUID CRYSTAL DISPLAY” in the “2.
Instruments and controls” section.)
In this case, inserting the Intelligent Key into
the port
 1
allows you to start the engine. Make
sure that the key ring side faces backward as
illustrated. Insert the Intelligent Key in the port
until it is latched and secured.
To remove the Intelligent Key from the port,
push the ignition switch to the OFF position and
pull the Intelligent Key out of the port. NOTE:
The Intelligent Key port does not charge the In-
telligent Key battery. If you see the low battery
indicator in the dot matrix liquid crystal display,
replace the battery as soon as possible. (See
“INTELLIGENT KEY BATTERY REPLACEMENT” in
the “8. Maintenance and do-it-yourself” sec-
tion.)
CAUTION● Never place anything except the Intelligent
Key in the Intelligent Key port. Doing so may
cause damage to the equipment.
● Make sure the Intelligent Key is in the cor-
rect direction when inserting it to the Intelli-
gent Key port. The engine may not start if it is
in the incorrect direction.
● Remove the Intelligent Key from the Intelli-
gent Key port after the ignition switch is
pushed to the OFF position. ● Make sure the area around the vehicle is
clear.
● Check fluid levels such as engine oil, cool-
ant, brake fluid and window washer fluid as
frequently as possible, or at least whenever
you refuel.
● Check that all windows and lights are clean.
● Visually inspect tires for their appearance
and condition. Also check tires for proper
inflation.
● Lock all doors.
● Position seat and adjust head restraints.
● Adjust inside and outside mirrors.
● Fasten seat belts and ask all passengers to
do likewise.
● Check the operation of warning lights when
the ignition switch is pushed to the ON
position. (See “WARNING/INDICATOR LIGHTS
AND AUDIBLE REMINDERS” in the “2. Instru-
ments and controls” section.)SSD0768
BEFORE STARTING THE ENGINE
5-10 Starting and driving
 —
—
04/21/10—debbie


1. Apply the parking brake.
2. Automatic Transmission (AT) model:
Move the selector lever to the P (Park) or N
(Neutral) position. (P is recommended.)
The starter is designed not to operate unless
the selector lever is in either of the above
positions.
Manual Transmission (MT) model:
Move the shift lever to the N (Neutral) posi-
tion. Depress the clutch pedal fully to the
floor.
The starter is designed not to operate unless
the clutch pedal is fully depressed.
The Intelligent Key must be carried when op-
erating the ignition switch.
3. Push the ignition switch to the ON posi-
tion. Depress the brake pedal (AT model)
or the clutch pedal (MT model) and push
the ignition switch to start the engine.
To start the engine immediately, push and
release the ignition switch while depressing
the brake pedal or clutch pedal (MT model)
with the ignition switch in any position. ● If the engine is very hard to start in ex-
tremely cold weather or when restarting,
depress the accelerator pedal a little (ap-
proximately 1/3 to the floor) and while hold-
ing, crank the engine. Release the accelera-
tor pedal when the engine starts.
● If the engine is very hard to start because it
is flooded, depress the accelerator pedal all
the way to the floor and hold it. Push the
ignition switch to the ON position to start
cranking the engine. After 5 or 6 seconds,
stop cranking by pushing the ignition switch
to OFF. After cranking the engine, release the
accelerator pedal. Crank the engine with
your foot off the accelerator pedal by de-
pressing the brake pedal and pushing the
push-button ignition switch to start the en-
gine. If the engine starts, but fails to run,
repeat the above procedure.
CAUTIONDo not operate the starter for more than 15
seconds at a time. If the engine does not start,
push the ignition switch to OFF and wait 10
seconds before cranking again, otherwise the
starter could be damaged. 4. Warm-up
Allow the engine to idle for at least 30
seconds after starting. Do not race the en-
gine while warming it up. Drive at moderate
speed for a short distance first, especially in
cold weather. In cold weather, keep the
engine running for a minimum of 2 - 3
minutes before shutting it off. Starting and
stopping the engine over a short period of
time may make the vehicle more difficult to
start.
When racing the engine up to 4,000 rpm or
more under no load condition, the engine
will enter the fuel cut mode.
5. To stop the engine, shift the selector lever
to the P (Park) position (AT model) or
move the shift lever to the N (Neutral)
position (MT model), and push the igni-
tion switch to the OFF position.STARTING THE ENGINE
Starting and driving
5-11
 —
—
04/21/10—debbie


AUTOMATIC TRANSMISSION
7 speed automatic transmission The automatic transmission in your vehicle is
electronically controlled by a transmission con-
trol module to produce maximum efficiency and
smooth operation.
Shown on the following pages are the recom-
mended operating procedures for this transmis-
sion. Follow these procedures for maximum
vehicle performance and driving enjoyment.
Starting the vehicle After starting the engine, fully depress the foot
brake pedal and push the selector lever button
before shifting the selector lever to the R (Re-
verse), N (Neutral), D (Drive), DS (Drive Sport) or
Manual shift mode position. Be sure the vehicle
is fully stopped before attempting to shift the
selector lever.
This automatic transmission model is designed
so that the foot brake pedal must be depressed
before shifting from P (Park) to any drive posi-
tion while the ignition switch position is ON.
The selector lever cannot be moved out of the P
(Park) position and into any of the other gear
positions if the ignition switch is pushed to the
LOCK, OFF or ACC position. 1. Keep the foot brake pedal depressed and
push the selector lever button to shift into
a driving gear.
2. Release the parking brake and foot brake,
then gradually start the vehicle in motion.
WARNING● Do not depress the accelerator pedal while
shifting from P (Park) or N (Neutral) to R (Re-
verse), D (Drive), DS (Drive Sport) or manual
shift mode. Always depress the brake pedal
until shifting is completed. Failure to do so
could cause you to lose control and have an
accident.
● Cold engine idle speed is high, so use cau-
tion when shifting into a forward or reverse
gear before the engine has warmed up.
● Never shift to P (Park) or R (Reverse) while
vehicle is moving forward. Never shift to P
(Park), D (Drive) or DS (Drive Sport) while
vehicle is moving rearward. Failure to do so
could cause you to lose control and have an
accident. CAUTION● When stopping the vehicle on an uphill
grade, do not hold the vehicle by depressing
the accelerator pedal. The foot brake should
be used for this purpose.
● Do not downshift abruptly on slippery roads.
This may cause a loss of control.
DRIVING THE VEHICLE
5-12 Starting and driving
 —
—
04/21/10—debbie


Shifting To move the selector lever,
: Push the button while depressing the
brake pedal,
: Push the button,
: Just move the selector lever.
After starting the engine, fully depress the
brake pedal and shift the selector lever from P
(Park) to R (Reverse), N (Neutral), D (Drive), DS
(Drive Sport) or Manual shift mode position. Push the button to shift into P (Park) or R
(Reverse). All other positions can be selected
without pushing the button.
WARNINGApply the parking brake if the selector lever is
in any position while the engine is not running.
Failure to do so could cause the vehicle to move
unexpectedly or roll away and result in serious
personal injury or property damage.
CAUTIONMake sure the vehicle is completely stopped
and the transmission is in the P (Park) position.
P (Park) position :
Use this selector position when the vehicle is
parked or when starting the engine. Make sure
the vehicle is completely stopped. The brake
pedal must be depressed and the selector lever
button pushed in to move the selector lever from
the N (Neutral) position or any drive position to
the P (Park) position. Apply the parking brake.
When parking on a hill, apply the parking brake
first, then move the selector lever to the P (Park)
position. CAUTIONUse this position only when the vehicle is com-
pletely stopped.
R (Reverse) :
Use this position to back up. Always be sure the
vehicle is completely stopped before selecting
the R (Reverse) position. The brake pedal must
be depressed and the selector lever button
pushed in to move the selector lever from the P
(Park) position, the N (Neutral) position or any
drive position to the R (Reverse) position.
N (Neutral) :
Neither forward nor reverse gear is engaged.
The engine can be started in this position. You
may shift to the N (Neutral) position and restart
a stalled engine while the vehicle is moving.
D (Drive) :
Use this position for all normal forward driving.Selector lever SSD0596
Starting and driving
5-13
 —
—
04/21/10—debbie


M
6 (6th) and M
5 (5th) :
Use this position when driving up long slopes,
or for engine braking when driving down long
slopes. M
4 (4th), M
3 (3rd) and M
2 (2nd) :
Use these positions for hill climbing or engine
braking on downhill grades. M
1 (1st) :
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 economy.
● Moving the selector lever rapidly to the same
side twice will shift the ranges in succes-
sion.
● In the manual shift mode, the transmission
may not shift to the selected gear. This helps
maintain driving performance and reduces
the chance of vehicle damage or loss of con-
trol.
When this situation occurs, the Automatic
Transmission (AT) position indicator light (on
the dot matrix liquid crystal display) will
blink and the chime will sound. ● In the manual shift mode, the transmission
automatically shifts down to 1st gear before
the vehicle comes to a stop. When accelerat-
ing again, it is necessary to shift up to the
desired range.
Accelerator downshift — In D (Drive)
position — For passing or hill climbing, fully depress the
accelerator pedal to the floor. This shifts the
transmission down into the lower gear, depend-
ing on the vehicle speed.
Fail-safe 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 spinning and subse-
quent 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 re-
turn 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. Shift lock release 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 de-
pressed and the selector lever button pushed.
To move the selector lever, perform the follow-
ing 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. SSD0598
Starting and driving
5-15
 —
—
04/21/10—debbie


4. 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.
Push the ignition switch to the ON position to
unlock the steering wheel. Now the vehicle may
be moved to the desired location.
If the battery is discharged completely, the
steering wheel cannot be unlocked. Do not
move the vehicle with the steering wheel
locked.
If the lever cannot be moved out of P (Park),
have an INFINITI retailer check the automatic
transmission system as soon as possible.
MANUAL TRANSMISSION 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 shift-
ing 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 pedal with
the foot brake applied.
Shifting To change gears, or when upshifting or down-
shifting, fully depress the clutch pedal, shift
into the appropriate gear, then slowly and
smoothly release the clutch pedal.
This vehicle is equipped with a short throw
shifter manual transmission. To ensure smooth
gear changes, fully depress the clutch pedal
before operating the shift lever. If the clutch
pedal is not fully depressed before the trans-
mission is shifted, a gear noise may be heard.
Transmission damage could occur.
Start the vehicle in 1st gear and shift to 2nd,
3rd, 4th, 5th and 6th gear in sequence accord-
ing to vehicle speed. SSD0536
5-16 Starting and driving
 —
—
04/21/10—debbie


To back up, depress the shift lever and then
move it to the R (Reverse) gear after stopping
the vehicle completely.
The shift lever returns to its original position
when the shift lever is moved to the N (Neutral)
position.
If it is difficult to move the shift lever into the R
(Reverse) or 1st gear, shift to the N (Neutral)
position, and then release the clutch pedal
once. Fully depress the clutch pedal again and
shift into the R (Reverse) or 1st gear.
Suggested upshift speeds The following are suggested vehicle speeds for
shifting into a higher gear. These suggestions
relate to fuel economy and vehicle performance.
Actual upshift speeds will vary according to
road conditions, the weather and individual
driving habits.
For 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 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 driv-
ing, use the highest gear suggested 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: Gear MPH (km/h)
1st 39 (63)
2nd 64 (103)
3rd 92 (148)
4th —
5th —
6th —
Coupe: Gear MPH (km/h)
1st 39 (63)
2nd 65 (104)
3rd 93 (149)
4th —
5th —
6th —
Starting and driving
5-17
 —
—
04/21/10—debbie


PRECAUTIONS ON CRUISE CONTROL ● If the cruise control system malfunctions, 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 becomes
excessively high, the cruise control system
will be canceled automatically.
● 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
RESUME/ACCELERATE, SET/COAST or CAN-
CEL switch. To properly set the cruise control
system, perform the steps below in the order
indicated.
WARNINGDo not use the cruise control when driving un-
der the following conditions:
● when it is not possible to keep the vehicle at
a set speed
● 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.
1. RESUME/ACCELERATE switch
2. SET/COAST switch
3. CANCEL switch
4. MAIN (ON·OFF) switch
CRUISE CONTROL OPERATIONS The cruise control allows driving at a speed
between 25 to 89 MPH (40 to 144 km/h) without
keeping your foot on the accelerator pedal.
To turn on the cruise control, push the MAIN
switch on. The CRUISE indicator will come on. SSD0600
CRUISE CONTROL
Starting and driving
5-19
 —
—
04/21/10—debbie


5) Set vehicle speed indicator:
Indicates the set vehicle speed.
For Canadian models, the speed is dis-
played in km/h.
6) Intelligent Cruise Control system warn-
ing light (orange):
The light comes on if there is a malfunc-
tion in the ICC system.
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.
Operating vehicle-to-vehicle distance
control mode 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. SSD0607 SSD0608
5-30 Starting and driving
 —
—
04/29/10—pattie