2011 INFINITI QX check engine light

CAUTION
●The TPMS is not a substitute for the regular
tire pressure check. Be sure to check the tire
pressure regularly.
● If the vehicle is being driven at speeds of less
than 16 MPH (25 km/h), the TPMS may not
operate correctly.
● Be sure to install the specified size of tires to
the four wheels correctly.
Master warning light
When the ignition switch is in the ON position,
the master warning light illuminates if any of
the following are displayed on the dot matrix
liquid crystal display:
● No key warning
● Low fuel warning
● Low washer fluid warning
● Parking brake release warning
● Door/lift gate open warning
● Loose fuel cap warning (if so equipped)
● Check tire pressure warning (if so equipped)
See “DOT MATRIX LIQUID CRYSTAL DISPLAY”
later in this section.
Preview Function warning
light (orange; if so equipped)
The light comes on if there is a malfunction in
the Brake Assist (with Preview Function) sys-
tem.
If the warning light comes on, park the vehicle
in a safe place. Turn the engine off, restart the
engine, then resume driving.
If it is not possible to set the system or the
indicator stays on, it may indicate that the sys-
tem is malfunctioning. Although the vehicle is
still driveable under normal conditions, have the
vehicle checked at an INFINITI retailer.
Seat belt warning light and
chime
The light and chime remind you to fasten seat
belts. The light illuminates whenever the igni-
tion switch is pushed to the ON position, and
will remain illuminated until the driver’s seat
belt is fastened. At the same time, the chime
will sound for about 6 seconds unless the
driver’s seat belt is securely fastened.
The seat belt warning light for the front passen-
ger will illuminate if the seat belt is not fastened
when the front passenger’s seat is occupied.
For approximately 5 seconds after the ignition switch is in the ON position, the system does
not activate the warning light for the front
passenger.
See “SEAT BELTS” in the “1. Safety — Seats,
seat belts and supplemental restraint system”
section for precautions on seat belt usage.
Supplemental air bag
warning light
After pushing the ignition switch to the ON
position, the supplemental air bag warning
light will illuminate. The supplemental air bag
warning light will turn off after about 7 seconds
if the front-impact air bag and side air bag,
curtain and rollover air bag systems and/or
pretensioner seat belts are operational.
If any of the following conditions occur, the
front air bag, side air bag, curtain and rollover
air bag and pretensioner systems needs servic-
ing and your vehicle must be taken to your
nearest INFINITI retailer.
●
The supplemental air bag warning light re-
mains on after approximately 7 seconds.
● The supplemental air bag warning light
flashes intermittently.
● The supplemental air bag warning light does
not come on at all.
2-16Instruments and controls

Automatic transmission
position indicator light
When the ignition switch is pushed to the ON
position, the indicator shows the automatic
selector position.
In the manual shift mode, when the transmis-
sion does not shift to the selected gear due to a
transmission protection mode, the AT position
indicator light will blink and a chime will sound.
See “AUTOMATIC TRANSMISSION” in the “5.
Starting and driving” section for further details.
Check suspension indicator
light
When the ignition switch is placed in the “ON”
position, the light comes on for 2 seconds.
Cruise indicator light (if so
equipped)
Cruise main switch indicator :
This light illuminates when the cruise control
main switch is pushed. The light turns off when
the main switch is pushed again. When the
cruise main switch indicator light illuminates,
the cruise control system is operational. (See
“CRUISE CONTROL” in the “5. Starting and
driving” section.)Cruise malfunction :
If the cruise indicator light blinks while the
engine is running, it may indicate the cruise
control system is not functioning properly. Have
the system checked by an INFINITI retailer. (See
“CRUISE CONTROL” in the “5. Starting and
driving” section.)
Front passenger air bag
status light
The front passenger air bag status light ()
located on the instrument panel will be lit and
the passenger front air bag will be OFF depend-
ing on how the front passenger seat is being
used.
For front passenger air bag status light opera-
tion, see “INFINITI ADVANCED AIR BAG SYSTEM
(front seats)” in the “1. Safety — Seats, seat
belts and supplemental restraint system” sec-
tion of this manual.
High beam indicator light
This light comes on when the headlight high
beam is on and goes out when the low beam is
selected.
Intelligent Brake Assist (IBA)
off indicator light (if so
equipped)
The light illuminates when the Intelligent Brake
Assist (IBA) off switch is pushed to OFF. This
indicates that the Intelligent Brake Assist (IBA)
system is not operating.
When the IBA off indicator light illuminates
while the system is turned on (without the
warning chime sound), this light indicates that
the system control is temporarily unavailable.
When the IBA off indicator light illuminates with
the warning chime sound while the IBA system
is turned on, this light indicates that the system
may not be functioning properly. Park the ve-
hicle in a safe place. Check to see if the laser
sensor is clean. Turn the engine off, then restart
the engine.
If the IBA off indicator light illuminates after
following the procedures above, it may indicate
that the system is malfunctioning. Although the
vehicle is still driveable under normal condi-
tions, have the vehicle checked at an INFINITI
retailer. (See “INTELLIGENT BRAKE ASSIST (IBA)
SYSTEM” in the “5. Starting and driving” sec-
tion.)
2-18Instruments and controls

Lane Departure Prevention
(LDP) ON indicator light
(green; if so equipped)
The light comes on in green when the Lane
Departure Prevention (LDP) system is turned on.
The light turns off when the system is turned off.
NOTE:
This light is common with the lane departure
warning light (orange). (See “Lane departure
warning light” earlier in this section.)
For more details, see “LANE DEPARTURE WARN-
ING (LDW)/PREVENTION (LDP) SYSTEM” in the
“5. Starting and driving” section.
Low beam indicator light
The light illuminates when the front park, side
marker, tail and license plate lights are on.
Malfunction Indicator Light
(MIL)
If the malfunction indicator light comes on
steady or blinks while the engine is running, it
may indicate a potential emission control mal-
function.
The malfunction indicator light may also come
on steady if the fuel-filler cap is loose ormissing, or if the vehicle runs out of fuel. Check
to make sure the fuel-filler cap is installed and
closed tightly, and that the vehicle has at least
3 US gallons (14 liters) of fuel in the fuel tank.
After a few driving trips, the
light should
turn off if no other potential emission control
system malfunction exists.
If this indicator light remains on for 20 seconds
and then blinks for 10 seconds when the engine
is not running, it indicates that the vehicle is
not ready for an emission control system
inspection/maintenance test. (See “READINESS
FOR INSPECTION/MAINTENANCE (I/M) TEST” in
the “9. Technical and consumer information”
section.)
Operation :
The malfunction indicator light will come on in
one of two ways:
● Malfunction indicator light on steady — An
emission control system malfunction has
been detected. Check the fuel-filler cap if the
LOOSE FUEL CAP warning (if so equipped)
appears in the dot matrix liquid crystal dis-
play. If the fuel-filler cap is loose or missing,
tighten or install the cap and continue to
drive the vehicle. The
light should
turn off after a few driving trips. If the
light does not turn off after a few driving trips, have the vehicle inspected by an
INFINITI retailer. You do not need to have
your vehicle towed to the retailer.
● Malfunction indicator light blinking — An
engine misfire has been detected which may
damage the emission control system.
To reduce or avoid emission control system
damage:
a) Do not drive at speeds above 45 MPH (72 km/h).
b) Avoid hard acceleration or deceleration.
c) Avoid steep uphill grades.
d) If possible, reduce the amount of cargo being hauled or towed.
The malfunction indicator light may stop
blinking and remain on.
Have the vehicle inspected by an INFINITI
retailer. You do not need to have your vehicle
towed to the retailer.
Instruments and controls2-19

CAUTION
Continued vehicle operation without having
the emission control system checked and re-
paired as necessary could lead to poor drive-
ability, reduced fuel economy, and possible
damage to the emission control system.
Security indicator light
The light blinks when the ignition switch is in
the ACC, OFF and LOCK position. This function
indicates the security system equipped on the
vehicle is operational.
If the security system is malfunctioning, this
light will remain on while the ignition switch is
in the ON position. For additional information,
see “SECURITY SYSTEMS” later in this section.
SNOW mode indicator light
When selecting SNOW mode while the engine is
running, this light will illuminate. (See “SNOW
MODE” in the “5. Starting and driving” section.)
TOW mode indicator light
This light will illuminate when the TOW MODE is
selected while the engine is running. (See “TOW
MODE” in the “5. Starting and driving” section.)
Turn signal/hazard indicator
lights
The light flashes when the turn signal switch
lever or hazard switch is turned on.
Vehicle Dynamic Control
(VDC) off indicator light
The light comes on when the vehicle dynamic
control off switch is pushed to OFF. This indi-
cates that the vehicle dynamic control system is
not operating. When the 4L position is selected
with the Four-Wheel Drive (4WD) shift switch,
the VDC system is disabled and the VDC off
indicator light illuminates. For additional infor-
mation, see “VEHICLE DYNAMIC CONTROL (VDC)
SYSTEM” in the “5. Starting and driving” sec-
tion of this manual.
AUDIBLE REMINDERS
Key reminder chime
A chime will sound if the driver side door is
opened while the ignition switch is pushed to
the ACC position. Make sure the ignition switch
is pushed to the OFF position, and take the
Intelligent Key with you when leaving the ve-
hicle.
Light reminder chime
A chime will sound when the driver side door is
opened with the light switch in theorposition and the ignition switch in the
ACC, OFF or LOCK position.
Turn the light switch off when you leave the
vehicle.
The chime will also sound for 2 seconds when
the ignition switch is turned to the OFF position
with the fog lights on while the headlight switch
is in the AUTO position.
Parking brake reminder chime
The chime will sound if the vehicle is driven at
more than 4 MPH (7 km/h) with the parking
brake applied. Stop the vehicle and release the
parking brake.
2-20Instruments and controls

INDICATORS FOR OPERATION
1. Engine start operation indicator
This indicator appears when the selector lever
is in the P (Park) position.
This indicator means that the engine will start
by pushing the ignition switch with the brake
pedal depressed.
2. Steering lock release malfunction
indicator
This indicator appears when the steering wheel
cannot be released from the LOCK position.
If this indicator appears, push the push-button
ignition switch while lightly turning the steering
wheel right and left.
3. NO KEY warning
This warning appears in either of the following
conditions.
No key inside the vehicle :
The warning appears when the door is closed
with the Intelligent Key left outside the vehicle
and the ignition switch in the ACC or ON
position. Make sure that the Intelligent Key is
inside the vehicle.Unregistered Intelligent Key :
The warning appears when the ignition switch
is pushed from the LOCK position and the
Intelligent Key cannot be recognized by the
system. You cannot start the engine with an
unregistered key. Use the registered Intelligent
Key.
See “INTELLIGENT KEY SYSTEM” in the “3. Pre-
driving checks and adjustments” section for
more details.
4. SHIFT “P” warning
This warning appears when the ignition switch
is pushed to stop the engine with the selector
lever in any position except the P (Park) posi-
tion.
If this warning appears, move the selector lever
to the P (Park) position or push the ignition
switch to the ON position.
An inside warning chime will also sound. (See
“INTELLIGENT KEY SYSTEM” in the “3. Pre-
driving checks and adjustments” section.)
5. “PUSH” warning
This warning appears when the selector lever is
moved to the P (Park) position with the ignition
switch in the ACC position after the SHIFT “P”
warning appears.To push the ignition switch to the OFF position,
perform the following procedure:
SHIFT “P” warning →(Move the selector lever
to “P”) →PUSH warning →(Push the ignition
switch →ignition switch position is turned to
ON) →PUSH warning →(Push the ignition
switch →ignition switch position is turned to
OFF)
6. Intelligent Key battery discharge
indicator
This indicator appears when the Intelligent Key
battery is running out of power.
If this indicator appears, replace the battery
with a new one. (See “INTELLIGENT KEY BATTERY
REPLACEMENT” in the “8. Maintenance and
do-it-yourself” section.)
7. Engine start operation for
Intelligent Key system indicator
This indicator appears when the Intelligent Key
battery is running out of power and when the
Intelligent Key System and vehicle are not
communicating normally.
If this indicator appears, touch the ignition
switch with the Intelligent Key while depressing
the brake pedal. (See “INTELLIGENT KEY BAT-
TERY DISCHARGE” in the “5. Starting and driv-
ing” section.)
Instruments and controls2-23

●TIRE
Select this submenu to set or reset the
distance for replacing tires.
● OTHER
Select this submenu and set or reset the
distance for replacing items other than the
engine oil, oil filter and tires.
OPTIONS :
There are 4 submenus under the display menu.
● BACK
Select this submenu to return to the top
page of the setting mode.
● LANGUAGE
Select this submenu to choose English,
French or Spanish for display.
● UNIT
Select this submenu to choose the unit.
● EFFECTS
Select this submenu to turn on and off the
meter/ring illumination and needle sweep
function when starting the engine.7. Warning check
SKIP :
Push the
switchAto move to the
warning check mode.
Push the
switchBto select other
menus.
DETAIL :
This item is available only when a warning is
displayed.
Select this menu to see the details of warnings.
Your vehicle has two types of security systems,
as follows:
●Vehicle security system
● INFINITI Vehicle Immobilizer System
The security condition will be shown by the
security indicator light.
VEHICLE SECURITY SYSTEM
The vehicle security system provides visual and
audio alarm signals if someone opens the
doors, hood, or lift gate when the system is
armed. It is not, however, a motion detection
type system that activates when a vehicle is
moved or when a vibration occurs.
SIC2133
SECURITY SYSTEMS
Instruments and controls2-29

The alarm is activated by:
●Unlocking the door or opening the lift gate
without using the button on the Intelligent
Key, the door handle request switch or the
mechanical key. (Even if the door is opened
by releasing the door inside lock knob, the
alarm will activate.)
● Opening the hood.
How to stop an activated alarm
The alarm will stop when a door is unlocked by
pushing the unlock button on the Intelligent
Key, the door handle request switch or using
the mechanical key, or when the ignition switch
is pushed to the ACC or ON position.
If the system does not operate as described
above, have it checked by an INFINITI retailer.
INFINITI VEHICLE IMMOBILIZER
SYSTEM
The INFINITI Vehicle Immobilizer System will not
allow the engine to start without the use of the
registered Intelligent Key. Never leave these
keys in the vehicle.
This device complies with Part 15 of FCC Rules
and RSS-Gen of IC Rules. Operation is subject to
the following two conditions:
(1) this device may not cause interference, and
(2) this device must accept any interference, in-
cluding interference that may cause undesired
operation of this device.
Security indicator light
The security indicator light is located on the
meter panel. It indicates the status of the
INFINITI Vehicle Immobilizer System.
The light blinks after the ignition switch was in
the ACC, OFF and LOCK position. This function
indicates the security systems equipped on the
vehicle are operational.
If the INFINITI Vehicle Immobilizer System is
malfunctioning, this light will remain on while
the ignition switch is in the ON position.
SIC2045
Instruments and controls2-31

WARNING
When the daytime running light system is ac-
tive, tail lights on your vehicle are not on. It is
necessary at dusk to turn on your headlights.
Failure to do so could cause an accident injur-
ing yourself and others.
Adaptive Front lighting System (AFS)
(if so equipped)
The Adaptive Front lighting System (AFS) will
automatically adjust the headlights (low beam)
toward the turning direction to improve the
driver’s view. When the headlight switch is ON
and the driver operates the steering wheel in a
turn, the AFS system will be activated.
The AFS will operate:
●when the headlight switch is ON.
● when the selector lever is in any position
other than P (Park) or R (Reverse). ●
when the vehicle is driven at above 16 MPH
(25 km/h) for the left-side headlight. Note
that the right-side low beam headlight will
swivel but the left side will not swivel when
the vehicle is at a stop and the steering
wheel is turned. The vehicle must attain a
speed above 16 MPH (25 km/h) before AFS
activates the left-side headlight.
To turn the AFS off, push the AFS switch. (The
AFS OFF indicator light will illuminate.) Push the
switch again to turn the system on again.
AFS will also adjust the headlight to a proper
axis automatically, depending on the number of
occupants in the vehicle, the load the vehicle is
carrying and the road conditions.
If the AFS OFF indicator light blinks after the
ignition switch has been pushed to the ON
position, this may indicate that the AFS is not
functioning properly. Have the system checked
by an INFINITI retailer. When the engine is
started, the headlights will vibrate to check the
system condition. This is not a malfunction.
SIC4473
2-40Instruments and controls