2011 INFINITI QX check engine light

5. To stop the engine, shift the selector leverto the P (Park) position and push the
ignition switch to the OFF position.ENGINE PROTECTION MODE
The engine has an engine protection mode to
reduce the chance of damage if the coolant
temperature becomes too high (for example,
when climbing steep grades in high tempera-
ture with heavy loads, such as when towing a
trailer).
When the engine temperature reaches a certain
level:
● The engine coolant temperature gauge will
move toward the H position.
● Engine power may be reduced.
● The air conditioning cooling function may be
automatically turned OFF for a short time
(the blower will continue to operate).
Engine power and, under some conditions, ve-
hicle speed will decrease. Vehicle speed can be
controlled with the accelerator pedal, but the
vehicle may not accelerate at the desired
speed. The transmission will downshift or up-
shift as it reaches prescribed shift points. You
can also shift manually.
As driving conditions change and engine cool-
ant temperature is reduced, vehicle speed can
be increased using the accelerator pedal, and
air conditioning cooling function will automati-
cally be turned back ON. If:1. The engine coolant temperature is not
reduced.
2. The air conditioning cooling function does not turn back ON.
3. The engine oil pressure warning light
illuminates or engine coolant tem-
perature gauge does not return to the
normal range from the H position, this
may indicate a malfunction. Move the
vehicle off the road to a safe area and
allow the engine to cool. If after checking
the oil and coolant, the
remains on
or engine coolant temperature does not
return to the normal range, do not con-
tinue to drive and contact an INFINITI
retailer.
The Malfunction Indicator Light (MIL)may also come ON. You do not need to have
your vehicle towed, unless it remains on, but
have it inspected soon by an INFINITI retailer.
See “WARNING/INDICATOR LIGHTS AND AU-
DIBLE REMINDERS” in the “2. Instruments and
controls” section.
DRIVING THE VEHICLE
5-14Starting and driving

●If the LDW system malfunctions, it will can-
cel automatically, and the lane departure
warning light (orange) will illuminate.
● If the lane departure warning light (orange)
illuminates, pull off the road to a safe loca-
tion and stop the vehicle. Turn the engine off
and restart the engine. If the lane departure
warning light (orange) continues to illumi-
nate, have the system checked by an INFINITI
retailer.
● Excessive noise will interfere with the warn-
ing chime sound, and the chime may not be
heard.
The system may not function properly under the
following conditions:
● On roads where there are multiple parallel
lane markers; lane markers that are faded or
not painted clearly; yellow painted lane
markers; non-standard lane markers; or lane
markers covered with water, dirt, snow, etc.
● On roads where the discontinued lane mark-
ers are still detectable.
● On roads where there are sharp curves. ●
On roads where there are sharply contrast-
ing objects, such as shadows, snow, water,
wheel ruts, seams or lines remaining after
road repairs. (The LDW system could detect
these items as lane markers.)
● On roads where the traveling lane merges or
separates.
● When the vehicle’s traveling direction does
not align with the lane marker.
● When traveling close to the vehicle in front
of you, which obstructs the lane camera unit
detection range.
● When rain, snow or dirt adheres to the
windshield in front of the lane camera unit.
● When the headlights are not bright due to
dirt on the lens or if the aiming is not
adjusted properly.
● When strong light enters the lane camera
unit. (For example, the light directly shines
on the front of the vehicle at sunrise or
sunset.)
● When a sudden change in brightness occurs.
(For example, when the vehicle enters or
exits a tunnel or under a bridge.)
LDW system operation
The LDW system provides a lane departure
warning function when the vehicle is driven at
speeds of approximately 45 MPH (70 km/h) and
above. When the vehicle approaches either the
left or the right side of the traveling lane, a
warning chime will sound and the lane depar-
ture warning light (orange) on the instrument
panel will blink to alert the driver.
The warning function will stop when the vehicle
returns inside of the lane markers.
Lane departure warning light (orange)
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LANE DEPARTURE PREVENTION (LDP)
SYSTEM
Precautions on LDP system
WARNING
●The LDP system will not steer the vehicle or
prevent loss of control. It is the driver’s re-
sponsibility to stay alert, drive safely, keep
the vehicle in the traveling lane, and be in
control of vehicle at all times.
● The LDP system is primarily intended for use
on well-developed freeways or highways. It
may not detect the lane markers in certain
roads, weather or driving conditions.
● Using the LDP system under some condi-
tions of road, lane marker or weather, or
when you change lanes without using the
lane change signal could lead to an unex-
pected system operation. In such condi-
tions, you need to correct the vehicle’s direc-
tion with your steering operation to avoid
accidents.
● When the LDP system is operating, avoid
excessive or sudden steering maneuvers.
Otherwise, you could lose control of the
vehicle. ●
The LDP system will not operate at speeds
below approximately 45 MPH (70 km/h) or if
it cannot detect lane markers.
● The LDP system may not function properly
under the following conditions, and do not
use the LDP system:
– During bad weather (rain, fog, snow, wind, etc.).
– When driving on slippery roads, such as on ice or snow, etc.
– When driving off-road such as on sand or rock, etc.
– When driving on winding or uneven roads.
– When there is a lane closure due to road repairs.
– When driving in a makeshift lane.
– When driving on roads where the lane width is too narrow.
– When driving without normal tire condi- tions (for example, tire wear, low tire
pressure, installation of spare tire, tire
chains, non-standard wheels).
– When the vehicle is equipped with non- original brake parts or suspension parts.
– When towing a trailer or other vehicle. ●
If the LDP system malfunctions, it will cancel
automatically. The lane departure warning
light (orange) on the instrument panel will
illuminate.
● If the lane departure warning light (orange)
illuminates, pull off the road to a safe loca-
tion and stop the vehicle. Turn the engine off
and restart the engine. If the warning light
(orange) continues to illuminate, have the
LDP system checked by an INFINITI retailer.
● Excessive noise will interfere with the warn-
ing chime sound, and the chime may not be
heard.
The functions of the LDP system (warning and
brake control assist) may or may not operate
properly under the following conditions:
● On roads where there are multiple parallel
lane markers; lane markers that are faded or
not painted clearly; yellow painted lane
markers; non-standard lane markers; or lane
markers covered with water, dirt, snow, etc.
● On roads where discontinued lane markers
are still detectable.
5-24Starting and driving

Entering from the side
The BSW indicator light illuminates if a vehicle
enters the detection zone from either side.
NOTE:
The radar sensors may not detect a vehicle
which is traveling at about the same speed as
your vehicle when it enters the detection zone.If the driver activates the turn signal, then the
BSW indicator light flashes and a chime will
sound twice.
NOTE:
If the driver activates the turn signal before a
vehicle enters the detection zone, the BSW indi-
cator light will flash but no chime will sound
when another vehicle is detected.
BSW temporarily not available
●
When radar blockage is detected, the BSW
system will be turned off automatically, a
beep will sound and the BSW system warn- ing light (orange) will blink. The BSW system
is not available until the condition no longer
exists.
The radar sensors may be blocked by temporary
ambient conditions such as splashing water,
mist or fog. The blocked condition may also be
caused by objects such as ice, frost or dirt
obstructing the radar sensors.
Action to take:
When the above condition no longer exists, the
BSW system will resume automatically.
If the warning light (orange) continues to blink,
have the BSW system checked by an INFINITI
retailer.
BSW MALFUNCTION
When the BSW system malfunctions, they will
be turned off automatically, a beep will sound
and the BSW system warning light (orange) will
illuminate.
Action to take:
Stop the vehicle in a safe location, turn the
engine off and restart the engine.
If the warning light (orange) continues to illu-
minate, have the BSW system checked by an
INFINITI retailer.
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SYSTEM MAINTENANCE
The two radar sensor units1for the BSW
system is located near the rear bumper. Always
keep the area near the radar sensors clean. Do
not attach stickers (including transparent mate-
rial), install accessories or apply additional
paint near the radar sensors. Do not strike or
damage the area around the radar sensors.
Consult an INFINITI retailer if the area around
the radar sensors is damaged due to a collision.
Radio frequency statement
This device complies with part 15 of the FCC
Rules and RSS-310 of Industry Canada.
Operation is subject to the following two con-
ditions:
1. This device may not cause harmful inter- ference.
2. This device must accept any interference received, including interference that may
cause undesired operation.
Frequency of operation: 24.05GHz — 24.25GHz
Field Strength: Not greater than 2.5V/m peak
(0.25V/m average) at a distance of 3 m
The manufacturer is not responsible for any
radio or TV interference caused by unauthorized
modifications to this equipment. Such modifi-
cations could void the user’s authority to oper-
ate the equipment.
PRECAUTIONS ON CRUISE CONTROL
●If the cruise control system malfunctions, it
will cancel automatically. The CRUISE indica-
tor light on the meter panel 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 CRUISE indicator light blinks, turn the
cruise control main switch off and have the
system checked by your INFINITI retailer.
● The CRUISE indicator light may sometimes
blink when the cruise control main switch is
turned ON while pushing the RESUME/
ACCELERATE, SET/COAST or CANCEL switch.
To properly set the cruise control system,
perform the steps below in the order indi-
cated.
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CRUISE CONTROL
Starting and driving5-37

4. 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 (ICC) systemwarning light (orange):
The light comes on if there is a malfunction
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
Aon. The MAIN
switch indicator, set distance indicator and set
vehicle speed indicator come on and in a
standby state for setting.
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Condition C :
When the ICC system is not operating properly,
the chime sounds and the system warning light
(orange) will come on.
Action to take :
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 conditions, have
the vehicle checked at an INFINITI retailer.Sensor maintenance
The sensor for the Intelligent Cruise Control
(ICC) system
Ais located below the front
bumper.
To keep the ICC system operating properly, be
sure to observe the following:
● Always keep the sensor clean. Wipe with a
soft cloth carefully so as not to damage the
sensor.
● Do not strike or damage the areas around
the sensor. Do not touch or remove the
screw located on the sensor. Doing so could
cause failure or malfunction. If the sensor is
damaged due to an accident, contact an
INFINITI retailer.
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Starting and driving5-57

To cancel the preset speed,use one of the
following methods:
a) Push the CANCEL button. The SET indica- tor will turn off.
b) Tap the brake pedal. The SET indicator will turn off.
c) Turn the MAIN switch off. Both the MAIN switch and SET indicator will turn off.
To reset at a faster cruising speed, use one of
the following three methods:
a) Depress the accelerator pedal. When the vehicle attains the desired speed, push
and release the SET/COAST switch.
b) Push and hold the RESUME/ACCELERATE set switch. When the vehicle attains the
desired speed, release the switch.
c) Push, then quickly release the RESUME/ACCELERATE switch. Each time
you do this, the set speed will increase by
about 1 MPH (1.6 km/h).
To reset at a slower cruising speed, use one of
the following three methods:
a) Lightly tap the brake pedal. When the vehicle attains the desired speed, push
the SET/COAST switch and release it. b) Push and hold the SET/COAST switch.
Release the switch when the vehicle
slows down to the desired speed.
c) Push, then quickly release the SET/COAST 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 RESUME/ACCELERATE switch. The vehicle
will resume the last set cruising speed when the
vehicle speed is over 25 MPH (40 km/h).
Automatic cancellation
A chime sounds under the following conditions
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 approxi-
mately 20 MPH (32 km/h)
● When the selector lever is shifted to the N
(Neutral) position
● When the parking brake is applied
● When the VDC (including the traction control
system) operates.
● When a wheel slipsWarning light
When the system is not operating properly, the
chime sounds and the system warning light
(orange) will come on.
Action to take :
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 malfunc-
tioning. Although the vehicle is still driveable
under normal conditions, have the vehicle
checked at an INFINITI retailer.
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