2014 INFINITI Q50 ECU

.Pre-mix washer fluid concentrates with
water to the manufacturer’ s recom-
mended levels before pouring the fluid
into the window washer reservoir. Do not
use the window washer reservoir to mix
the washer fluid concentrate and water.. Keep the battery surface clean and dry.
Clean the battery with a solution of
baking soda and water.
. Make certain the terminal connections
are clean and securely tightened.
. If the vehicle is not to be used for 30
days or longer, disconnect the negative
(−) battery terminal cable to prevent
discharging it.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery dis-
charge and potential no-start conditions
such as:
1. Installation or extended use of electro-
nic accessories that consume battery
power when the engine is not running
(Phone chargers, GPS, DVD players,
etc.)
2. Vehicle is not driven regularly and/or
only driven short distances.
In these cases, the battery may need to be
charged to maintain battery health.
WARNING
. Do not expose the battery to flames or
electrical sparks. Hydrogen gas gener- ated by the battery is explosive. Do not
allow battery fluid to contact your skin,
eyes, fabrics, or painted surfaces. After
touching a battery or battery cap, do not
touch or rub your eyes. Thoroughly wash
your hands. If the acid contacts your
eyes, skin or clothing, immediately flush
with water for at least 15 minutes and
seek medical attention.
. Do not operate the vehicle if the fluid in
the battery is low. Low battery fluid can
cause a higher load on the battery which
can generate heat, reduce battery life,
and in some cases lead to an explosion.
. When working on or near a battery,
always wear suitable eye protection and
remove all jewelry.
. Battery posts, terminals and related
accessories contain lead and lead com-
pounds. Wash hands after handling.
. Keep the battery out of the reach of
children.
Maintenance and do-it-yourself8-15
BATTERY

8-18Maintenance and do-it-yourself
loose, have it replaced or adjusted by
an INFINITI retailer.
2. Have the belts checked regularly for condition and tension in accordance
with the maintenance schedule in your
“INFINITI Service and Maintenance
Guide”.WARNING
Be sure the engine and the ignition switch
are off and that the parking brake is
engaged securely.
CAUTION
Be sure to use the correct socket to remove
the spark plugs. An incorrect socket can
damage the spark plugs.
SDI2020
REPLACING SPARK PLUGS
If replacement is required, see an INFINITI
retailer for servicing.
Iridium-tipped spark plugs
It is not necessary to replace the iridium-
tipped spark plugs as frequently as the
conventional type spark plugs since they
will last much longer. Follow the main-
tenance schedule in “INFINITI Service and
Maintenance Guide” , but do not reuse
them by cleaning or regapping.
SPARK PLUGS

from the lower part.
3. Replace the battery with a new one.
Recommended battery:
CR2025 or equivalent
.Do not touch the internal circuit andelectric terminals as it could cause a
malfunction.
.Hold the battery by the edges.
Holding the battery across the con-
tact points will seriously deplete the
storage capacity.
.Make sure that the + side faces thebottom of the case.SDI2452
4. Align the tips of the upper and lower
parts
*1, and then push them together
*2until it is securely closed.
5. Operate the buttons to check its operation.
See an INFINITI retailer if you need any
assistance for replacement.
FCC Notice:
For USA:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions: (1) This device
may not cause harmful interference, and
(2) this device must accept any interfer- ence received, including interference that
may cause undesired operation.
NOTE:
Changes or modifications not expressly
approved by the party responsible for
compliance could void the user’s authority
to operate the equipment.
For Canada:
This device complies with RSS-210 of
Industry Canada. Operation is subject to
the following two conditions: (1) this
device may not cause interference, and
(2) this device must accept any interfer-
ence, including interference that may
cause undesired operation of the device.
Maintenance and do-it-yourself8-25

CAUTION
.Never install tire chains on a punctured
run-flat tire, as this could damage your
vehicle.
. Avoid driving over any projection or
pothole, as the clearance between the
vehicle and the ground is smaller than
normal.
. Do not enter an automated car wash with
a punctured run-flat tire.
. Have the punctured tire inspected by an
INFINITI retailer or other authorized
repair shop. Replace the tire as soon
as possible if the tire is seriously
damaged.
TIRE CHAINS
Use of tire chains may be prohibited
according to location. Check the local laws
before installing tire chains. When instal-
ling tire chains, make sure they are the
proper size for the tires on your vehicle and
are installed according to the chain man-
ufacturer’ s suggestions. Use only SAE
Class S chains. Class“S”chains are used
on vehicles with restricted tire to vehicle clearance. Vehicles that can use Class
“S”
chains are designed to meet the SAE
standard minimum clearances between
the tire and the closest vehicle suspension
or body component required to accommo-
date the use of a winter traction device (tire
chains or cables). The minimum clearances
are determined using the factory equipped
tire size. Other types may damage your
vehicle. Use chain tensioners when recom-
mended by the tire chain manufacturer to
ensure a tight fit. Loose end links of the
tire chain must be secured or removed to
prevent the possibility of whipping action
damage to the fenders or underbody. If
possible, avoid fully loading your vehicle
when using tire chains. In addition, drive at
a reduced speed. Otherwise, your vehicle
may be damaged and/or vehicle handling
and performance may be adversely af-
fected.
Tire chains must be installed only on the
rear wheels and not on the front wheels.
Never install tire chains on a TEMPORARY
USE ONLY spare tire (if so equipped). Never
install tire chains on a punctured run-flat
tire, as this could damage your vehicle.
Do not use tire chains on dry roads. Driving
with tire chains in such conditions can cause damage to the various mechanisms
of the vehicle due to some overstress.
Maintenance and do-it-yourself8-37

9-18Technical and consumer information
cargo and luggage load capacity
of your vehicle.
Before driving a loaded vehicle,
confirm that you do not exceed the
Gross Vehicle Weight Rating (GVWR)
or the Gross Axle Weight Rating
(GAWR) for your vehicle. (See “Mea-
surement of weights” (P.9-18).)
Also check tires for proper inflation
pressures. See the Tire and Loading
Information label.
LOADING TIPS
.The GVW must not exceed GVWR or GAWR as specified on the F.M.V.
S.S./C.M.V.S.S. certification label.
.Do not load the front and rear axle
to the GAWR. Doing so will exceed
the GVWR.
WARNING
.Properly secure all cargo to help
prevent it from sliding or shifting.
Do not place cargo higher than the seatbacks. In a sudden stop or
collision, unsecured cargo could
cause personal injury.
.Do not load your vehicle any
heavier than the GVWR or the
maximum front and rear GAWRs.
If you do, parts of your vehicle can
break, tire damage could occur, or
it can change the way your vehicle
handles. This could result in loss
of control and cause personal
injury.
.Overloading could not only short-
en the life of your vehicle and the
tires, but also could lead to
hazardous vehicle handling and
long braking distance. This may
cause a premature tire malfunc-
tion, which could result in a
serious accident and personal in-
jury. Failures caused by overload-
ing are not covered by the
vehicle’s warranty.
MEASUREMENT OF WEIGHTS
Secure loose items to prevent weight
shifts that could affect the balance of
your vehicle. When the vehicle is
loaded, drive to a scale and weigh
the front and the rear wheels sepa-
rately to determine axle loads. In-
dividual axle loads should not
exceed either of the gross axle
weight ratings (GAWR). The total of
the axle loads should not exceed the
gross vehicle weight rating (GVWR).
These ratings are given on the
vehicle certification label. If weight
ratings are exceeded, move or re-
move items to bring all weights
below the ratings.

9-22Technical and consumer information
online at:
https://wwwapps.tc.gc.ca/Saf-Sec-
Sur/7/PCDB-BDPP/Index.aspx.
Additional information concerning
motor vehicle safety may be obtained
from Transport Canada’s Road Safety
Information Centre at 1-800- 333-
0371 or online at www.tc.gc.ca/
roadsafety (English speakers) or
www.tc.gc.ca/securiteroutiere
(French speakers).
To notify INFINITI of any safety con-
cerns please contact our Consumer
Information Centre toll free at 1-800-
361-4792.WARNING
A vehicle equipped with Intelligent All-
Wheel Drive (AWD) should never be tested
using a two wheel dynamometer (such as
the dynamometers used by some states for
emissions testing), or similar equipment.
Make sure you inform test facility personnel
that your vehicle is equipped with AWD
before it is placed on a dynamometer. Using
the wrong test equipment may result in
transmission damage or unexpected vehicle
movement which could result in serious
vehicle damage or personal injury.
Due to legal requirements in some states/
areas, your vehicle may be required to be
in what is called the“ready condition”for
an Inspection/Maintenance (I/M) test of
the emission control system.
The vehicle is set to the “ready condition”
when it is driven through certain driving
patterns. Usually, the “ready condition”
can be obtained by ordinary usage of the
vehicle.
If a powertrain system component is
repaired or the battery is disconnected,
the vehicle may be reset to a “not readycondition”
. Before taking the I/M test,
check the vehicle’ s inspection/mainte-
nance test readiness condition. Place the
ignition switch in the ON position without
starting the engine. If the Malfunction
Indicator Light (MIL) comes on steady for
20 seconds and then blinks for 10
seconds, the I/M test condition is “not
ready”. If the MIL does not blink after 20
seconds, the I/M test condition is “ready”.
Contact an INFINITI retailer to set the
“ready condition” or to prepare the vehicle
for testing.
READINESS FOR INSPECTION/
MAINTENANCE (I/M) TEST (US only)

10 Index
A
ABS (Anti-lock Braking System) ....................... 5-107
Active Lane Control ........................................... 5-24
Active trace control ......................................... 5-110
Air bag systemFront-seat mounted side-impact
supplemental air bag system ....................... 1-52
Roof-mounted curtain side-impact
supplemental air bag system ....................... 1-52
Air bag warning labels ...................................... 1-55
Air bag warning light ............................... 1-55, 2-16
Air cleaner housing filter ................................... 8-19
Air conditioner Air conditioner specification label ................ 9-13
Air conditioning system refrigerant and
lubricant recommendations ............................ 9-7
Air deflectors .................................................... 9-15
Alarm How to stop alarm (see vehicle
security system) ........................................... 2-32
Alcohol, drugs and driving .................................. 5-9
Antenna .............................................................. 4-3
Anti-lock Braking System (ABS) ....................... 5-107
Appearance care Exterior appearance care ................................ 7-2
Interior appearance care ................................ 7-5
Armrest ............................................................... 1-7
Ashtrays ........................................................... 2-44
Audible reminders ............................................ 2-19
Autolight system ............................................... 2-37 Automatic
Automatic transmission fluid (ATF) ............... 8-12
Driving with automatic transmission ............ 5-15
Automatic door locks .......................................... 3-5
Automatic drive positioner ................................ 3-29
Automatic moonroof.......................................... 2-52
Automatic seat positioner ................................. 3-29
Average speed .................................................. 2-28
Avoiding collision and rollover ............................ 5-8
B
Back-up Collision Intervention (BCI) system ....... 5-48
Battery .............................................................. 8-15
Battery replacement, Intelligent Key ............... 3-2
Battery saver system ................................... 2-40
Intelligent Key .............................................. 8-24
Variable voltage control system ................... 8-17
Before starting the engine ................................ 5-13
Belts (See drive belts) ....................................... 8-17
Blind Spot Warning (BSW) system/Blind Spot
Intervention
TM(BSI) system ............................... 5-37
Brake
Anti-lock Braking System (ABS) .................. 5-107
Brake fluid ................................................... 8-13
Brake force distribution ............................. 5-109
Brake system ............................................. 5-106
Parking brake operation ............................... 5-20
Brake warning light ........................................... 2-13
Break-in schedule ............................................. 5-99 Bulb check/instrument panel ............................ 2-12
Bulb replacement .............................................. 8-26
C
Capacities and recommended fuel/lubricants ...... 9-2
Car phone or CB radio ........................................ 4-3
Card holder ....................................................... 2-47
Catalytic converter Three-way catalyst ......................................... 5-4
Chassis control ............................................... 5-112
Check tire pressure warning .............................. 2-23
Child restraints ................................................. 1-24 LATCH system .............................................. 1-26
Precautions on child restraints ..................... 1-24
Child safety ...................................................... 1-22
Child safety rear door lock .................................. 3-6
Chimes Audible reminders ....................................... 2-19
Seat belt warning light and chime ............... 2-16
Circuit breaker Fusible link .................................................. 8-22
Cleaning exterior and interior ....................... 7-2, 7-5
Clock ............................................................... 2-30
Coat hooks ....................................................... 2-48
Cockpit ............................................................... 2-3
Cold weather driving ....................................... 5-112
Compact spare tire ........................................... 8-40
Compass ............................................................. 2-9
Console box ...................................................... 2-47

10-6
Three-point type .......................................... 1-15
Seat(s) Driver-side memory ...................................... 3-29
Heated seats ................................................. 1-5
Seats ............................................................. 1-2
Security system Vehicle security system ................................ 2-31
Security system (INFINITI Vehicle Immobilizer
System) Engine start ................................................. 2-32
Shift lever Shift lock release ......................................... 5-18
Shift lock release, Transmission ........................ 5-18
Shifting Automatic transmission ............................... 5-15
Shoulder belt height adjustment ....................... 1-20
SNOW mode ..................................................... 5-22
Spare tire ........................................................... 9-9
Spark plugs ...................................................... 8-18
Speedometer ...................................................... 2-7
SPORT mode ..................................................... 5-22
STANDARD mode ............................................... 5-21
Starting
Before starting the engine ........................... 5-13
Jump starting ............................................... 8-16
Precautions when starting and driving ........... 5-3
Push starting ............................................... 6-11
Starting the engine ...................................... 5-14
Status light, Front passenger air bag ................ 1-49
Steering Direct Adaptive Steering ............................ 5-104 Power steering fluid ..................................... 8-13
Power steering system ............................... 5-104
Tilt/telescopic steering ................................. 3-24
Storage ............................................................. 2-45
Storage box ...................................................... 2-48
Sun visors ........................................................ 3-25
Sunglasses holder ............................................ 2-46
Supplemental air bag warning labels ................ 1-55
Supplemental air bag warning light ......... 1-55, 2-16
Supplemental restraint system .......................... 1-42
Precautions on supplemental
restraint system ........................................... 1-42
Switch
Autolight switch ........................................... 2-37
Fog light switch ........................................... 2-42
Hazard warning flasher switch ....................... 6-2
Headlight switch .......................................... 2-36
Ignition switch ............................................. 5-15
Power door lock switch .................................. 3-5
Rear window and outside mirror
defroster switch ........................................... 2-36
Turn signal switch ........................................ 2-42
Vehicle Dynamic Control (VDC) off switch ..... 2-43
T
Tachometer ......................................................... 2-8
Temperature gauge
Engine coolant temperature gauge ................. 2-8
Theft (INFINITI Vehicle Immobilizer System) Engine start ................................................. 2-32
Thigh extension .................................................. 1-5 Three-way catalyst .............................................. 5-4
Tilt/telescopic steering ...................................... 3-24
Tire
Flat Tire - Visit dealer warning ..................... 2-23
Run-flat tires .................................................. 6-4
Tire replacement indicator ............................ 2-26
Tire rotation ................................................. 8-38
Tire pressure Low tire pressure warning light .................... 2-14
Tire Pressure Low - Add Air warning .................. 2-23
Tires Flat tire .......................................................... 6-3
Low tire pressure warning system ... 5-4, 6-3, 8-29
Run-flat tires ................................................ 8-36
Spare tire .................................................... 8-40
Tire and Loading information label ...... 8-31, 9-13
Tire chains ................................................... 8-37
Tire dressing .................................................. 7-4
Tire pressure................................................ 8-29
Tire Pressure Monitoring
System (TPMS) .............................. 5-4, 6-3, 8-29
Types of tires ............................................... 8-35
Uniform tire quality grading ......................... 9-19
Wheel/tire size .............................................. 9-9
Wheels and tires .......................................... 8-29
Towing Flat towing ................................................... 9-19
Tow truck towing .......................................... 6-13
Towing a trailer ............................................ 9-19
TPMS Tire Pressure Monitoring System ... 5-4, 6-3, 8-29