2019 INFINITI QX50 air suspension

SymptomPossible CauseRemedy
When pushing the ignition switch to
start the engine The Key Battery Low warning appears
on the display.
The battery charge may be getting low.Replace the battery with a new one. For
additional information, refer to “Battery
replacement” in the “Do-it-yourself” sec-
tion of this manual.
The No Key Detected warning appears
on the display, the outside chime sounds
three times and the inside warning
chime sounds for approximately 3 sec-
onds. The battery charge may be getting low.
Replace the battery with a new one. For
additional information, refer to “Battery
replacement” in the “Do-it-yourself” sec-
tion of this manual.
When pushing the ignition switch The I-Key System Error: See Owner’s
Manual warning appears on the display. It warns of a malfunction with the Intel-
ligent Key system.It is recommended that you visit an
INFINITI retailer.
LOG-IN FUNCTION
After setting up the user information, the
system will automatically recognize the user
upon turning on the vehicle.
There will be a personalized welcome greet-
ing and screen prompt to log in.
This feature allows four drivers to use their
own registration, drive mode, driving posi-
tion, air conditioner, and auto settings and
memorizes these custom settings.
The log-in user can be changed on the wel-
come greeting screen or the User List screen.
For additional information, refer to the sepa-
rate INFINITI InTouch™ Owner’s Manual. The log-in function is linked to the following
features:
∙ Meter
∙ Audio
∙ Navigation system display (if so equipped)
∙ Navigation settings (if so equipped)
∙ Air conditioner
∙ Automatic drive positioner (if so equipped)
∙ Engine/transmission ∙ Steering
∙ Suspension (if so equipped)
∙ Active trace control system
∙ Driver assistance except for the Forward
Emergency Braking (FEB) with Pedes-
trian Detection system (if so equipped)
∙ Body Control Module (BCM)
3-20Pre-driving checks and adjustments

LDP SYSTEM LIMITATIONS
WARNING
Listed below are the system limitations for
the LDP system. Failure to follow the warn-
ings and instructions for proper use of the
LDP system could result in serious injury or
death.
∙ The LDP system may activate if youchange lanes without first activating
your turn signal or, for example, if a con-
struction zone directs traffic to cross an
existing lane marker. If this occurs you
may need to apply corrective steering to
complete your lane change.
∙ Because the LDP may not activate under the road, weather, and lane marker con-
ditions described in this section, it may
not activate every time your vehicle be-
gins to leave its lane and you will need to
apply corrective steering.
∙ The LDP system will not operate at speeds below approximately 37 mph
(60 km/h) or if it cannot detect lane
markers.
∙ Do not use the LDP system under the fol- lowing conditions as it may not function
properly: – During bad weather (rain, fog, snow,
etc.).
– When driving on slippery roads, such as on ice or snow.
– When driving on winding or uneven roads.
– When there is a lane closure due to road repairs.
– When driving in a makeshift or tempo- rary lane.
– When driving on roads where the lane width is too narrow.
– When driving without normal tire conditions (for example, tire wear, low
tire pressure, installation of spare tire,
tire chains, non-standard wheels).
– When the vehicle is equipped with nonoriginal brake parts or suspension
parts.
– When you are towing a trailer or other vehicle.
The system may not function properly un-
der the following conditions: ∙ On roads where there are multiple paral-
lel 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 mark- ers are still detectable.
∙ On roads where there are sharp curves.
∙ On roads where there are sharply con- trasting objects, such as shadows, snow,
water, wheel ruts, seams or lines remain-
ing after road repairs. (The LDP 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.
Starting and driving5-41

CAUTION
∙ Never install tire chains on a puncturedrun-flat tire, as this could damage your
vehicle.
∙ Avoid driving over any projection or pot- hole, as the clearance between the ve-
hicle 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 re-
pair shop. Replace the tire as soon as pos-
sible if the tire is seriously damaged.
∙ Always use tires of the same type, size, brand, construction (bias, bias-belted or
radial), and tread pattern on all four
wheels. Failure to do so may result in a
circumference difference between tires
on the front and rear axles which will
cause excessive tire wear and may dam-
age the transmission, transfer case and
differential gears (AWD models).
∙ ONLY use spare tires specified for the AWD model. ∙ If excessive tire wear is found, it is recom-
mended that all four tires be replaced
with tires of the same size, brand, con-
struction and tread pattern. The tire
pressure and wheel alignment should also
be checked and corrected as necessary. It
is recommended that you visit an
INFINITI retailer for this service.
TIRE CHAINS
CAUTION
Tire chains/cables should not be installed
on 255/45R20 size tires. Installation of
the tire chains/cables on 255/45R20 size
tires will cause damage to the vehicle. If you
plan to use tire chains/cables, you should
install 235/55R19 size tires on your
vehicle.
Use of tire chains may be prohibited accord-
ing to location. Check the local laws before
installing tire chains. When installing tire
chains, make sure they are the proper size for
the tires on your vehicle and are installed
according to the chain manufacturer’s sug-
gestions. 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
minimum clearances between the tire and the closest vehicle suspension or body compo-
nent required to accommodate the use of a
winter traction device (tire chains or cables).
The minimum clearances are determined us-
ing the factory equipped tire size. Other types
may damage your vehicle. Use chain tension-
ers when recommended 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 whip-
ping action damage to the fenders or under-
body. If possible, avoid fully loading your ve-
hicle 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 affected.
Do not use tire chains on dry roads. Driving
with chains in such conditions can cause
damage to the various mechanisms of the
vehicle due to some overstress.
Do-it-yourself8-35