2019 LEXUS GS300H maintenance

4486-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30F92E_(EE)
Install the cover of the back end
of the mirror, installing the lower
side and the upper side in that
order.
When installing the lower side of the cover, insert the side turn signal lightpin into the hole in the cover.
Secure the cover with screws and
reconnect the connectors back
together.
Secure the cords by returning them to the hooks as they were.
Align the tabs, and secure the
mirror by pushing in each diago-
nally-opposite pair of tabs in
order.
Make sure to insert the tabs in order as shown in the illustration, and push
them in until a click is heard.
If you do not hear the click, do not force the tabs in. Instead, remove the
mirror and check that the tabs are aligned.
10
11
12

449 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30F92E_(EE)
■Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by any autho-
rized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
●Headlights
●Front position lights/daytime running lights
●Front fog lights
●Front turn signal lights (vehicles with triple-beam headlights)
●Side turn signal lights
●Stop/tail lights
●Stop lights
●Rear fog light
●Rear turn signal lights
●Back-up lights
●High mounted stoplight
●License plate lights
■LED Lights
The lights other than the front turn signal lig ht (vehicles with single-beam headlights) and outer foot lights each consist of a number of LEDs. If any of the LEDs burn out, take your
vehicle to any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer to have the light replaced.
■Condensation build-up on the inside of the lens
Temporary condensation build-up on the inside of the headlight lens does not indicate a malfunction. Contact any authorized Lexus reta iler or Lexus authorized repairer, or any reliable repairer for more information in the following situations:
●Large drops of water have built up on the inside of the lens.
●Water has built up inside the headlight.
■When replacing light bulbs
 P. 441

4506-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30F92E_(EE)
WARNING
■Replacing light bulbs
●Turn off the lights. Do not attempt to replace the bulb immediately after turning off the lights.
The bulbs become very hot and may cause burns.
●Do not touch the glass portion of the light bulb with bare hands. When it is unavoid- able to hold the glass portion, use and hold with a clean dry cloth to avoid getting
moisture and oils on the bulb. Also, if the bulb is scratched or dropped, it may blow out or crack.
●Fully install light bulbs and any parts used to secure them. Failure to do so may result
in heat damage, fire, or wate r entering the headlight unit. This may damage the head- lights or cause condensation to build up on the lens.
■To prevent damage or fire
●Make sure bulbs are fully seated and locked.
●Check the wattage of the bulb before installing to prevent heat damage.
NOTICE
■When replacing the outer foot lights
If the front window is stopping you from conducting the replace operation properly, open the window on the side you are working on to allow you enough space to work.
Continuing the operation without giving yourself enough space to work could lead you to scratch the vehicle.

4877-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F92E_(EE)
Indicates that the outside temperature is approximately
3 C (37F) or lower A buzzer also sounds. Drive carefully, as the road may be icy.
Indicates that the engine oil is scheduled to be changed  Check the engine oil and change if necessary. After changing the engine oil, the oil change system
should be reset. ( P. 406) (The indicator will not work properly unless the oilmaintenance data has been reset.)
(If equipped)
Indicates that the fuel in jectors require maintenance
soon  Have any authorized Lexus retailer or Lexus autho- rized repairer, or any reliable repairer replenish the
injector cleaner to the fuel tank and reset the mes- sage as necessary.
Indicates that the engine oil and oil filter should bechanged Have the engine oil and oil filter checked and/or
changed by any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer. Afterchanging the engine oil, the oil change system
should be reset. ( P. 406)
(If equipped)
Indicates that the fuel injectors require maintenance
 Have any authorized Lexus retailer or Lexus autho- rized repairer, or any reliable repairer replenish theinjector cleaner and reset the message.
Warning messageDetails/Actions

4897-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F92E_(EE)
Carrying out the corresponding action turns the messages off.
Air conditioning, heater and other operations are tem- porarily limited due to high power consumption
 Turn off unnecessary electronic equipment to reduce power consumption.Please wait until the power supply returns to nor-
mal. If this item is frequently displayed, have the vehicle inspected by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer imme- diately.
(If equipped)
Indicates that part of the PC S (Pre-Crash Safety system) sensor is dirty, covered with ice, etc.
A buzzer also sounds.  Remove any dirt, ice, etc.
Other displayed messages
Warning messageDetails/Actions
(Flashes)
(Flashes)
Warning messageDetails/Actions
Maintenance of the hybrid battery (traction battery)
cooling component is required The filter may be clogged, the air intake vent may beblocked or there may be a gap in the duct.
 Have maintenance performed on the hybrid battery (traction battery) cooling component at any autho-
rized Lexus retailer or Lexus authorized repairer, or any reliable repairer.

545
8Vehicle specifications
GS450h_300h_OM_OM30F92E_(EE)
8-1. Specifications
Maintenance data
(fuel, oil level, etc.) .................. 546
Fuel information..........................559
8-2. Customization
Customizable features ............. 561
8-3. Initialization
Item to initialize ........................... 576

5468-1. Specifications
GS450h_300h_OM_OM30F92E_(EE)
Maintenance data (fuel, oil level, etc.)
*1: Unladen vehicle
*2: Vehicles with 265/35R19 tires
*3: AWL10L-BEXEHW and AWL10R-BEXEHW models*10
*4: AWL10L-BEXQHW and AWL10R-BEXQHW models*10
*5: GWL10L-BEXEBW and GWL10R-BEXEBW models*10
*6: GWL10L-BEXQBW and GWL10R-BEXQBW models*10
*7: Vehicles with towing package
*8:GS300h
*9:GS450h
*10: The model code is indicated on the manufacturer’s label. (P. 547)
Dimensions and weights
Overall length 4850 mm (190.9 in.)
Overall width 1840 mm (72.4 in.)
Overall height*11455 mm (57.3 in.)
Wheelbase 2850 mm (112.2 in.)
Tread*1Front 1575 mm (62.0 in.)
Rear 1590 mm (62.6 in.) 1560 mm (61.4 in.)*2
Gross vehicle mass
2235 kg (4927 lb.)*3
2265 kg (4993 lb.)*4
2305 kg (5082 lb.)*5
2335 kg (5148 lb.)*6
Maximum permissible axle
capacity
Front 1120 kg (2469 lb.)
Rear 1270 kg (2800 lb.)
Drawbar load*780 kg (176 lb.)
Towing capacity*7
With brake 500 kg (1102 lb.)*8
1500 kg (3307 lb.)*9
Without brake0 kg (0 lb.)*8
750 kg (1653 lb.)*9

5768-3. Initialization
GS450h_300h_OM_OM30F92E_(EE)
Item to initialize
*: If equipped
The following item must be initialized for normal system operation after such
cases as the 12-volt battery being re connected, or maintenance being per-
formed on the vehicle:
ItemWhen to initializeReference
Oil maintenance• After the maintenance is per-
formedP. 408
Tire pressure warning system*
• When rotating the tires • When changing the tire inflationpressure by changing traveling
speed or load weight, etc.
P. 418