lights LEXUS RX350 2019 Owners Manual

6658-2. Steps to take in an emergency
8
When trouble arises
RX350/RX350L_U ■
If “Maintenance Required Visit Your Dealer” is displayed (U.S.A. only)
Indicates that all maintenance is requir ed to correspond to the driven distance
on the maintenance schedule
* .
Comes on approximately 5000 miles (8000 km) after the message has
been reset.
(The indicator will not work properly unless the message has been reset.)
Perform the necessary maintenance. Please reset the message after the main-
tenance is performed. (  P. 585)
* : Refer to the separate “Scheduled Mainte nance” or “Owner’s Manual Supplement”
for the maintenance interval applicable to your vehicle. ■
System warning lights
The master warning light does not come on or flash in the following cases. Instead, a sep-
arate system warning light will come on along with a message shown on the multi-infor-
mation display. ●
“Antilock Brake System Malfunction Visit Your Dealer”:
The ABS warning light comes on. (  P. 654)●
“Charging System Malfunction See Ow ner’s Manual” (F SPORT models):
The charging system wa rning light comes on. (  P. 654)■
Warning buzzer
 P. 658
NOTICE ■
“High Power Consumption Partial Limit On AC/Heater Operation” is frequently
shown
There is a possible malfunctio n relating to the charging system or the battery may be
deteriorating. Have the vehicle inspected by your Lexus dealer.

682 8-2. Steps to take in an emergency
RX350/RX350L_U One of the following may be the cause of the problem: ●
There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. ●
The engine may be flooded.
Try to restart the engine again follo wing correct starting procedures.
(  P. 231)●
There may be a malfunction in th e engine immobilizer system. (  P. 74)
One of the following may be the cause of the problem: ●
The battery terminal connections may be loose or corroded. ●
The battery may be discharged. (  P. 687)
The engine starting system may be malfun ctioning due to an electrical problem
such as electronic key battery depletio n or a blown fuse. However, an interim
measure is available to start the engine. (  P. 683)If the engine will not start If the engine will not start even though correct starting procedures are being
followed (  P. 231), consider each of the following points:
The engine will not start even thoug h the starter motor operates nor-
mally.
The starter motor turns over slowly , the interior lights and headlights
are dim, or the horn does not sound or sounds at a low volume.
The starter motor does not turn over

6838-2. Steps to take in an emergency
8
When trouble arises
RX350/RX350L_U One of the following may be the cause of the problem: ●
One or both of the battery terminals may be disconnected. ●
The battery may be discharged. (  P. 687)●
There may be a malfunction in the steering lock system.Contact your Lexus dealer if the problem cannot be repaired, or if repair procedures
are unknown.
When the engine does not start, the follo wing steps can be used as an interim
measure to start the engine if the engine switch is functioning normally.
T urn the engine switch to IGNITION ON mode and check that the parking
brake is set. (  P. 232, 247)
Shift the shift lever to P.
Turn the engine switch to ACCESSORY mode.
Press and hold the engine switch for about 15 seconds while depressing the
brake pedal firmly.
Even if the engine can be started using the above steps, the system may be mal-
functioning. Have the vehicle in spected by your Lexus dealer.The starter motor does not turn ove r, the interior lights and headlights
do not turn on, or the horn does not sound.
Emergency start function 1
2
3
4

6898-2. Steps to take in an emergency
8
When trouble arises
RX350/RX350L_U ■
Starting the engine when the battery is discharged
The engine cannot be started by push-starting. ■
To prevent battery discharge ●
Turn off the headlights and the audio system while the engine is off. ●
Turn off any unnecessary electrical componen ts when the vehicle is running at a low
speed for an extended period , such as in heavy traffic.■
When removing the battery terminals
When the battery terminals are removed, the information stored in the ECU is cleared.
Before removing the battery termin als, contact your Lexus dealer.■
Charging the battery
The electricity stored in the battery will disc harge gradually even when the vehicle is not
in use, due to natural discharge and the draini ng effects of certain electrical appliances. If
the vehicle is left for a long time, the battery may discharge, and the engine may be
unable to start. (The battery recharges automatically during driving.) ■
When the battery is removed or discharged ●
In some cases, it may not be possible to un lock the doors using the smart access system
with push-button start when the battery is discharged. Use the wireless remote control
or the mechanical key to lock or unlock the doors. ●
The engine may not start on the first attempt after the battery has recharged but will
start normally after the second attempt. This is not a malfunction. ●
The engine switch mode is memorized by the vehicle. When the battery is recon-
nected, the system will return to the mode it was in before the battery was discharged.
Before disconnecting the battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery discharged, be
especially careful when reconnecting the battery. ●
The power back door must be initialized. (  P. 138)■
When replacing the battery ●
Use a battery with the same case size as the previous battery and an equivalent 20
hour rate capacity (20HR) or greater.
• If the sizes differ, the battery cannot be properly secured.
• If the 20 hour rate capacity is low, even if the time period where the vehicle is not
used is a short time, the battery may discharge and the engine may not be able to
start. ●
For details, consult your Lexus dealer.

702 9-1. Specifications
RX350/RX350L_U * : The coolant capacity is a reference quantity.
If replacement is necessary, contact your Lexus dealer.Cooling system Capacity
* 
RX350 (Vehicles with out towing package)
9.5 qt. (9.0 L, 7.9 Imp. qt.) 
RX350 (Vehicles with towing package)
10.5 qt. (9.9 L, 8.7 Imp. qt.) 
RX350L
13.1 qt. (12.4 L, 11 Imp. qt.)
Coolant type Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based
non-silicate, non-amine, non-nitrite, and non-
borate coolant with long-life hybrid organic
acid technology
Do not use plain water alone.
Ignition system (spark plug) Make DENSO FK20HBR8
Gap 0.03 in. (0.8 mm)
NOTICE ■
Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system Battery
Open voltage at 68  F (20  C): 12.6 V or higher: Fully charged
12.2 — 12.4 V: Half charged
12.0 V or lower: Discharged
(Turn the engine switch off and turn on the head-
lights for 20 to 30 seconds.)
Charging rates 5 A max.

7059-1. Specifications
9
Vehicle specifications
RX350/RX350L_U 
Type B
A: Wedge base bulbs (amber)
B: Wedge base bulbs (clear)
* 1
: Vehicles with single-beam headlights
* 2
: Vehicles without door trim ornament lightsTire size 235/55R20 102V, T165/90D18 107M (spare)
Tire inflation pressure
(Recommended cold tire
inflation pressure) 
Front tire
33 psi (230 kPa, 2.3 kgf/cm 2
or bar) 
Rear tire
33 psi (230 kPa, 2.3 kgf/cm 2
or bar) 
Spare tire
60 psi (420 kPa, 4.2 kgf/cm 2
or bar)
Driving at high speeds (above 100 mph [160 km/h])
(in countries where such speeds are permitted by
law)
Add 11 psi (70 kPa, 0.7 kgf/cm 2
or bar) to the
front and rear tires. Never exceed the maximum
cold tire inflation pressu re indicated on the tire
sidewall.
Wheel size 20  8 J, 18  4 T (spare)
Wheel nut torque 76 ft•lbf (103 N•m, 10.5 kgf•m)
Light bulbs Light bulbs Bulb No. W Type
Exterior Front side marker lights
* 1
 5 B
Front turn signal lights
* 1
7444NA 28/8 A
Rear turn signal lights
* 1
 21 A
Back-up lights 921 16 B
Interior Door courtesy lights
* 2
 5 B
Vanity lights  8 B
Luggage compartment light  5 B

730 9-2. Customization
RX350/RX350L_U ■
Turn signal lever (  P. 246)
■
Automatic light control system (  P. 252)
■
Lights ( 
P. 252)
* 1
:Except for Canada
* 2
: If equipped
■
Rain-sensing windshield wipers
* ( 
P. 261)
* : If equipped Function Default setting Customized setting
The number of times the turn sig-
nal lights flash automatically
when the turn signal lever is
moved to the first position during
a lane change 3 5
— O7
Off 1 2
Function Default setting Customized setting
Light sensor sensitivity Standard -2 to 2 O O
Time elapsed before headlights
automatically turn off after doors
are closed 30 seconds Off
OO
60 seconds
90 seconds 1 2
Function Default setting Customized setting
Daytime running lights On Off
* 1
O O
Welcome lighting On Off — O
AFS (Adaptive Front-lighting
System)
* 2
On Off — O
Windshield wiper linked head-
light illumination On Off — O 1 2
Function Default setting Customized setting
Wiper operation when the wiper
switch is in the “AUTO” position Rain-sensing oper-
ation Intermittent opera-
tion linked to vehi-
cle speed (with
interval adjuster) — O 1 2

7339-2. Customization
9
Vehicle specifications
RX350/RX350L_U ■
Illumination (  P. 524)
* : If equipped Function Default setting Customized setting
Time elapsed before the interior
lights turn off 15 seconds Off
O O7.5 seconds
30 seconds
Operation after the engine
switch is turned off On Off — O
Operation when the doors are
unlocked On Off — O
Operation when you approach
the vehicle with the electronic
key on your person On Off — O
Footwell lights and front center
console light On Off — O
Instrument panel ornament
light
* and door trim ornament
lights
* On Off — O
Time elapsed before the outer
foot lights turn off 15 seconds Off
O O7.5 seconds
30 seconds
Operation of the outer foot lights
when you approach the vehicle
with the electronic key on your
person On Off — O
Operation of the outer foot lights
when the doors are unlocked
with the power door lock switch On Off — O
Operation of the outer foot lights
when a door is opened On Off — O
Fading out of the outer foot lights
when they turn off Long Short — O 1 2

748
RX350/RX350L_U Boulon de réglage A
Boulon de réglage B
Vérifiez que le réservoir de carburant du véhicule est plein et que la zone
autour des phares n'est pas déformée.
Stationnez le véhicule sur une surface plane.
Installez-vous dans le siège conducteur.
Balancez le véhicule plusieurs fois.Headlight aim instructions for Canadian owners (in
French) (vehicles with single-beam headlights) The following is a French explanation of headlight aim instructions from the
headlight aim section in this manual.
Boulons de réglage du mouvement vertical 1
2
Avant de vérifier le réglage des phares 1
2
3
4

758 Alphabetical index
RX350/RX350L_U Back door
Power back door ................................ 130
Touchless power back door ..........132
Wireless remote control ................. 130
Back-up lights
Replacing light bulbs ....................... 630
Wattage ................................................. 705
Battery
Battery checking ................................. 601
If the battery is discharged ........... 687
Preparing and checking before
winter ................................................... 384
Warning light ...................................... 654
Blind Spot Monitor (BSM)..................313
Blind Spot Monitor function ...........317
Rear Cross Traffic
Alert function ......................................321
Bluetooth ®
.............................................. 476
Audio system .......................................453
Hands-free system
(for cellular phone) ....................... 455 Bottle holders ........................................ 533
Brake
Brake Hold ...........................................250
Fluid .......................................................... 704
Parking brake .......................................247
Warning light ....................................... 654
Brake assist ............................................. 378
Brake Hold.............................................. 250
Warning light .......................................655
Break-in tips ........................................... 204
Brightness control
Instrument panel light control ........88
BSM (Blind Spot Monitor) ................. 313
Blind Spot Monitor function........... 317
Rear Cross Traffic Alert
function.................................................. 321B