2014 INFINITI Q70 HYBRID power steering

3-28Pre-driving checks and adjustments
JVP0241X
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 shift lever is in the P (Park)
position.
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).
Cancel or activate seat synchroni-
zation function
The shift lever must be in the P (Park)
position with the ignition switch in the ACC
position.
MEMORY STORAGE
Two positions for the driver’s seat, steering
column and outside mirrors can be stored
in the automatic drive positioner memory.
Follow these procedures to use the mem-
ory system.
1. Move the shift lever to the P (Park) position.
2. Adjust the driver’s seat, steering col- umn and outside mirrors to the desired
positions by manually operating each
adjusting switch. For additional infor-
mation, see “Seats”(P.1-2),“Tilt/tele-
scopic steering” (P.3-22) and“Outside
mirrors” (P.3-25).
3. Push the SET switch and, within 5 seconds, push the memory switch (1
or 2) fully for at least 1 second.
The indicator light for the pushed
memory switch will stay on for approxi-
mately 5 seconds after pushing the
switch.
When the memory is stored in the
memory switch (1 or 2), a buzzer will
sound.
If memory is stored in the same
memory switch, the previous memory
will be deleted.

Vehicle-to-vehicle distance control
mode operation............................................. 5-51
Conventional (fixed speed) cruise
control mode ................................................. 5-66
Preview function (for Intelligent Cruise Control
system equipped models) ............................. 5-69
Distance Control Assist (DCA) system
(if so equipped) ................................................. 5-69
Precautions on Distance Control
Assist system ................................................ 5-70
Distance Control Assist operation .................. 5-71
Forward Collision Warning (FCW) system
(if so equipped) ................................................. 5-82 Precautions on FCW system ........................... 5-83
Intelligent Brake Assist (IBA) system
(if so equipped) ................................................. 5-86 Precautions on IBA system ............................ 5-87
Break-in schedule .............................................. 5-90
Fuel efficient driving tips ................................... 5-90
Increasing fuel economy .................................... 5-91
Parking/parking on hills .................................... 5-92
Sonar system (if so equipped) ........................... 5-93 Sonar indicator.............................................. 5-94
Sonar system OFF switch ............................... 5-95 Power steering .................................................. 5-95
Brake system .................................................... 5-96 Braking precautions ..................................... 5-96
Parking brake break-in................................. 5-96
Brake assist ...................................................... 5-97 Brake assist................................................. 5-97
Preview function (Intelligent Cruise Control
system equipped models) ............................ 5-97
Anti-lock Braking System (ABS) .................... 5-99
Vehicle Dynamic Control (VDC) system ............ 5-100 Active trace control (if so equipped)........... 5-101
Rise-up and build-up ................................. 5-101
Brake force distribution ............................. 5-101
Hill Start Assist system ................................... 5-102
Cold weather driving ....................................... 5-103 Freeing a frozen door lock ......................... 5-103
Antifreeze .................................................. 5-103
12-volt battery ........................................... 5-103
Draining of coolant water........................... 5-103
Tire equipment .......................................... 5-103
Special winter equipment .......................... 5-104
Driving on snow or ice ............................... 5-104
Engine block heater (if so equipped).......... 5-104
Active noise control......................................... 5-105

JVS0122X
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 on.
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 hybrid system is not in the READY
to drive mode or is turned off while
driving, the power assist for the steering
will not work. Steering will be harder to
operate.
. When the power steering warning light
illuminates with the hybrid system in
the READY to drive mode, there will be
no power assist for the steering. You will
still have control of the vehicle but the
steering will be harder to operate. Have
the power steering system checked by
an INFINITI retailer.
When the steering wheel is operated
repeatedly or continuously while parking
or driving at a very low speed, or when the
steering wheel is operated keeping full-
steer, the power assist for the steering
wheel will be reduced. This is to prevent
overheating of the Hybrid EPS (Electrical
Power Steering) system and protect it from
getting damaged. While the power assist is
reduced, steering wheel operation will
become heavy. but, this is not a malfunc-
tion. If the steering wheel is still operated, the Hybrid EPS may stop and the Hybrid
EPS warning light will illuminate. Stop the
hybrid system and push the ignition switch
to the
“OFF”position. If the steering wheel
is not operated for a while, the tempera-
ture of Hybrid EPS system will go down and
the power assist level will return to normal
after starting the hybrid system. Avoid
repeating such steering wheel operations
that could cause the electric power steer-
ing system to overheat. You may hear a
operational noise from the vehicle when
the steering wheel is operated quickly this
is not malfunction.
Starting and driving5-95
POWER STEERING

5-100Starting and driving
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 hybrid system 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
pulsation 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 or
mortor output to reduce drive wheel
slip based on vehicle speed (traction
control function).
. Controls brake pressure at individual
wheels and engine or motor 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
VEHICLE DYNAMIC CONTROL (VDC) SYSTEM

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 light
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,
except for rise-up and build-up and brake
force distribution, 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.2-20).
The computer has a built-in diagnostic
feature that tests the system each time you
start the hybrid system 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 pulsa-
tion in the brake pedal. This is normal and
is not an indication of a malfunction.
ACTIVE TRACE CONTROL (if so
equipped)
This system senses driving based on the
driver’s steering and acceleration/braking
patterns, and individually controls the
braking and application of engine or motor
torque to each of the four wheels to help
smooth vehicle response.
When the drive mode selector switch is set
to the “SPORT” mode, the amount of brake
control provided by active trace control is
reduced. When the VDC OFF switch is used to turn off
the VDC system, the active trace control
system is also turned off.
If the active trace control is not functioning
properly, the IBA OFF indicator light illumi-
nates in the instrument panel.
RISE-UP AND BUILD-UP
The system gradually adjusts braking
power during normal braking to help
provide an enhanced brake feel.
BRAKE FORCE DISTRIBUTION
During braking while driving through turns,
the system optimizes the distribution of
force to each of the four wheels depending
on the radius of the turn.
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.
Starting and driving5-101

JVE0010X
WARNING
Always 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 anothervehicle
*A, position the two vehicles
(
*Aand*B) to bring the 12-volt
battery and fuse box into close proxi-
mity to each other.
Do not allow the two vehicles to touch. 2. Apply parking brake. Move the shift
lever to the P (Park) position. Switch off
all unnecessary electrical systems
(light, heater, air conditioner, etc.).
3. Connect jumper cables in the sequence as illustrated (
*1?*2?*3?*4).
For models with a steering wheel lock
mechanism: If the 12-volt battery is
disconnected or discharged, the steer-
ing wheel will lock and cannot be
turned. Supply power using jumper
cables before pushing the ignition
switch and disengaging the steering
lock.
CAUTION
. Always connect positive (+) to positive
(+) and negative (−) to body ground (as
illustrated) −not to the 12-volt 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.
4. Start the engine of the booster vehicle
*Aand let it run for a few minutes.
5. Start the hybrid system of the vehicle being jump started
*B.
CAUTION
If the hybrid system does not start right
away, push the ignition switch to the OFF
position and wait 10 seconds before trying
again.
6. After starting your vehicle, carefully
disconnect the negative cable and then
the positive cable (
*4?*3?*2?
*1).
In case of emergency6-11

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 hybrid system.) 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. Also check if the cooling fan is running. The radiator hoses and radiator should
not leak water. If coolant is leaking or
the cooling fan does not run, stop the
hybrid system.
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. 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 emergency6-13
TOWING YOUR VEHICLE

8 Maintenance and do-it-yourself
Maintenance requirement.................................... 8-2
Scheduled maintenance .................................. 8-2
General maintenance....................................... 8-2
Where to go for service ................................... 8-2
General maintenance ........................................... 8-2 Explanation of maintenance items ................... 8-2
Maintenance precautions ..................................... 8-5
Engine compartment check locations ................... 8-7 VQ35HR engine ............................................... 8-7
Engine cooling system ......................................... 8-9
Checking engine coolant level ....................... 8-10
Changing engine coolant ............................... 8-10
Inverter cooling system...................................... 8-11
Checking inverter coolant level ...................... 8-12
Changing inverter coolant.............................. 8-12
Engine oil .......................................................... 8-12
Checking engine oil level............................... 8-12
Changing engine oil and filter ....................... 8-13
Automatic transmission fluid ............................. 8-15
Power steering fluid........................................... 8-15
Brake fluid......................................................... 8-16 Brake fluid .................................................... 8-16
Window washer fluid ......................................... 8-17 12-volt battery .................................................. 8-18
Checking battery fluid level.......................... 8-19
Jump starting ............................................... 8-19
Spark plugs ...................................................... 8-19 Replacing spark plugs ................................. 8-20
Air cleaner ........................................................ 8-20
Windshield wiper blades ................................... 8-21 Cleaning ...................................................... 8-21
Replacing..................................................... 8-22
Brakes .............................................................. 8-23
Self-adjusting brakes ................................... 8-23
Brake pad wear warning .............................. 8-23
Fuses ................................................................ 8-24
Engine compartment or trunk room.............. 8-24
Passenger compartment............................... 8-25
Intelligent Key battery replacement ................... 8-26
Lights................................................................ 8-29 Headlights ................................................... 8-29
Exterior and interior lights ........................... 8-30
Wheels and tires ............................................... 8-32
Tire pressure ............................................... 8-32
Tire labeling ................................................ 8-36
Types of tires............................................... 8-38
Tire chains ................................................... 8-39
Changing wheels and tires........................... 8-39