2011 INFINITI QX check engine

Charge warning light
If the light comes on while the engine is run-
ning, it may indicate the charging system is not
functioning properly. Turn the engine off and
check the alternator belt. If the belt is loose,
broken, missing or if the light remains on, see
an INFINITI retailer immediately.
CAUTION
Do not continue driving if the alternator belt is
loose, broken or missing.
Distance Control Assist (DCA)
system warning light
(orange; if so equipped)
This light comes on if there is a malfunction in
the Distance Control Assist (DCA) system.
If the warning light illuminates, park the vehicle
in a safe place. Turn the engine off, restart the
engine, resume driving and turn on the DCA
system again.
If it is not possible to turn on the system or the
warning light 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.See “DISTANCE CONTROL ASSIST (DCA) SYS-
TEM” in the “5. Starting and driving” section.
Engine oil pressure warning
light
This light warns of low engine oil pressure. If
the light flickers or comes on during normal
driving, pull off the road in a safe area, stop the
engine
immediately and call an INFINITI retailer
or other authorized repair shop.
The engine oil pressure warning light is not de-
signed to indicate a low oil level. Use the dip-
stick to check the oil level. (See “ENGINE OIL” in
the “8. Maintenance and do-it-yourself” sec-
tion.)
CAUTION
Running the engine with the engine oil pres-
sure warning light on could cause serious dam-
age to the engine almost immediately. Such
damage is not covered by warranty. Turn off the
engine as soon as it is safe to do so.
Four-Wheel Drive (4WD)
warning light (4WD models)
Thewarning light comes on when the
ignition switch is pushed to ON. It turns off
soon after the engine is started.
If the 4WD system malfunctions, or the diam-
eter of the front and the rear wheels are differ-
ent, the warning light will either remain illumi-
nated or blink. (See “INFINITI ALL-MODE 4WD”
in the “5. Starting and driving” section.)
CAUTION
● If the warning light comes on while driving
there may be a malfunction in the 4WD sys-
tem. Reduce the vehicle speed and have your
vehicle checked by an INFINITI retailer as
soon as possible.
● If the 4WD warning light turns on when driv-
ing on dry or hard surfaced roads:
– in the 4H(I) position, shift the 4WD shift switch to AUTO
– in the 4L(O) position, stop the vehicle and shift the transmission selector lever to
the “N” (Neutral) position and shift the
4WD shift switch to AUTO
Instruments and controls2-13

●If the warning light is still on after the above
operations, have your vehicle checked by an
INFINITI retailer as soon as possible.
Intelligent Cruise Control
(ICC) system warning light
(orange; if so equipped)
This light comes on if there is a malfunction in
the Intelligent Cruise Control (ICC) system.
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 sys-
tem is malfunctioning. Although the vehicle is
still driveable under normal conditions, have the
vehicle checked at an INFINITI retailer.
Intelligent Key warning light
After the ignition switch is pushed to the ON
position, this light comes on for about 2 sec-
onds and then turns off.
This light warns of a malfunction with the
electrical steering lock system or the Intelligent
Key system.
If the light comes on while the engine is
stopped, it may be impossible to free the
steering lock or to start the engine. If the light
comes on while the engine is running, you can
drive the vehicle. However in these cases, con-
tact an INFINITI retailer for repair as soon as
possible.
Lane departure warning light
(orange; if so equipped)
When the ignition switch is pushed to the ON
position, the light will come on in orange, turn
green, and then turn off. This indicates that the
Lane Departure Warning (LDW) and Lane Depar-
ture Prevention (LDP) systems are operational.
While the LDW and/or LDP system is on, the
light will blink in orange and a warning chime
will sound if the vehicle is traveling close to
either the left or the right of a traveling lane
with detectable lane markers. If the light comes on in orange and remains on,
it may indicate that the LDW and LDP systems
are not functioning properly. Although the ve-
hicle is still driveable, have the systems
checked by an INFINITI retailer.
See “LANE DEPARTURE WARNING (LDW)/ PRE-
VENTION (LDP) SYSTEM” in the “5. Starting and
driving” section.
Low tire pressure warning
light
Your vehicle is equipped with a Tire Pressure
Monitoring System (TPMS) that monitors the
tire pressure of all tires except the spare.
The low tire pressure warning light warns of low
tire pressure or indicates that the TPMS is not
functioning properly.
After the ignition switch is pushed ON, this light
illuminates for about 1 second and turns off.
Low tire pressure warning :
If the vehicle is being driven with low tire
pressure, the warning light will illuminate. A
CHECK TIRE PRESSURE warning (if so equipped)
also appears in the dot matrix liquid crystal
display. If you select the tire pressure informa-
tion in the display, the LOW PRESSURE informa-
tion will be displayed. The tire pressure for each
tire will also be displayed.
2-14Instruments and controls

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

4. Distance to empty (dte — MILES or
km)
The distance to empty (dte) mode provides you
with an estimation of the distance that can be
driven before refueling. The dte is constantly
being calculated, based on the amount of fuel
in the fuel tank and the actual fuel consump-
tion.
The display is updated every 30 seconds.
The dte mode includes a low range warning
feature. If the fuel level is low, the warning is
displayed on the screen.
When the fuel level drops even lower, the dte
display will change to “——”.
●If the amount of fuel added is small, the
display just before the ignition switch is
pushed to the OFF position may continue to
be displayed.
● When driving uphill or rounding curves, the
fuel in the tank shifts, which may momen-
tarily change the display.
5. Outside air temperature (ICY — °F
or °C)
The outside air temperature is displayed in °F or
°C in the range of 22 to 131°F (30 to 55°C). The outside air temperature mode includes a
low temperature warning feature. If the outside
air temperature is below 37°F (3°C), the warning
is displayed on the screen.
The outside temperature sensor is located in
front of the radiator. The sensor may be affected
by road or engine heat, wind directions and
other driving conditions. The display may differ
from the actual outside temperature or the
temperature displayed on various signs or bill-
boards.
6. Setting
Setting cannot be made while driving. A mes-
sage “Setting can only be operated when
stopped” is also displayed on the dot matrix
liquid crystal display.
The
switchAandswitchBare
used in the setting mode to select and decide a
menu.
SKIP :
Push the
switchAto move to the
warning check mode.
Push the
switchBto select other
menus. ALERT :
There are 3 submenus under the alert menu.
●
BACK
Select this submenu to return to the top
page of the setting mode.
● TIMER
Select this submenu to specify when the
“TIMER” indicator activates.
● ICY
Select this submenu to display the low out-
side temperature warning.
MAINTENANCE :
There are 5 submenus under the maintenance
menu.
● BACK
Select this submenu to return to the top
page of the setting mode.
● OIL
Select this submenu to set or reset the
distance for changing the engine oil.
● FILTER
Select this submenu to set or reset the
distance for replacing the oil filter.
2-28Instruments and controls