
3
1 
8 
7
6
5
4
3
2
GS450h_300h_OM_OM30F92E_(EE)
3-5. Opening, closing the  
windows and moon roof 
Power windows............................ 193
Moon roof ...................................... 196 
4-1. Before driving 
Driving the vehicle .................... 200 
Cargo and luggage .................. 208
Trailer towing (vehicles  
without towing package) .....209 
Trailer towing (vehicles with  
towing package)....................... 210 
4-2. Driving procedures 
Power (ignition) switch ..............217
EV drive mode ............................ 222 
Hybrid transmission .................. 224 
Turn signal lever .......................... 231
Parking brake ..............................232
Brake Hold....................................235 
4-3. Operating the lights  
and wipers 
Headlight switch ......................... 237
AHS (Adaptive High-beam  
System)......................................... 241 
Automatic High Beam ............. 246 
Fog light switch .......................... 250 
Windshield wipers  
and washer.................................. 251 
4-4. Refueling 
Opening the fuel tank cap...... 257 
4-5. Using the driving support  
systems 
Lexus Safety System+ ............... 261
PCS (Pre-Crash Safety  
system)......................................... 270 
LKA (Lane-Keeping  
Assist)...........................................282 
RSA (Road Sign Assist)............ 291
Dynamic radar cruise  
control with full-speed 
range ............................................ 296 
Cruise control ............................ 308 
Driving mode select switch.......311 
BSM (Blind Spot Monitor) ...... 314 
•The Blind Spot Monitor 
function...................................... 319
• The Rear Crossing Traffic 
Alert function .......................... 321 
Driving assist systems...............324 
4-6. Driving tips 
Hybrid vehicle driving tips....... 331
Winter driving tips .....................334
4Driving 

951-3. Theft deterrent system
1 
GS450h_300h_OM_OM30F92E_(EE)
For safety and security
■Canceling and automatic re-enabling of the intrusion sensor and tilt sensor
●The alarm will still be set even  when the intrusion sensor and tilt sensor are canceled.
●After the intrusion sensor and tilt sensor are canceled, pressing the power switch or unlocking the doors using the entry function, wireless remote control or mechanical 
key will re-enable the intrusio n sensor and tilt sensor.
●The intrusion sensor and tilt sensor will automatically be re-enabled when the alarm system is deactivated.
■Intrusion sensor detection  considerations (if equipped) 
The sensor may trigger the alarm in the following situations: 
• The movement of people outside the vehicle
●Places with extreme vibrations or noises, or  situations in which the vehicle is subject to 
repeated impacts or vibrations: 
• When parked in a parking garage • When the vehicle is transported by a ferry, trailer, train, etc. 
• When ice adhering to the vehicle is removed • When the vehicle is in an automatic or high-pressure car wash• When in a hail or lightning storm
●A window or the moon roof (if equipped) isopen. In this case, the sensor may detect the follow- 
ing: 
• Wind or the movement of objects such as leaves and insects inside the vehicle 
• Ultrasonic waves emitted from devices such as the intrusion sensors of other vehi-cles
●Unstable items, such as dangling accessoriesor clothes hanging on the coat hooks, are inthe vehicle. 

961-3. Theft deterrent system
GS450h_300h_OM_OM30F92E_(EE)
■Tilt sensor detection considerations (if equipped) 
The sensor may trigger the alarm in the following situations:
●The vehicle is transported by a ferry, trailer, train, etc.
●The vehicle is parked in a parking garage.
●The vehicle is inside a car wash that moves the vehicle.
●Any of the tires loses air pressure.
●The vehicle is jacked up.
●An earthquake occurs or the road caves in.
NOTICE
■To ensure the intrusion sensor function correctly
●Installing accessories other than genuine Lexus parts or leaving objects between the 
driver’s seat and front passenger’s seat  may reduce the detection performance.
●To ensure that the sensors operate properly, do not touch or cover them.
●Do not spray air freshe ners or other products directly into the sensor holes. 

199
4Driving
GS450h_300h_OM_OM30F92E_(EE)
4-1. Before driving 
Driving the vehicle.................... 200
Cargo and luggage .................. 208
Trailer towing (vehicles  
without towing package) .....209 
Trailer towing (vehicles with  
towing package)....................... 210 
4-2. Driving procedures 
Power (ignition) switch ..............217
EV drive mode ............................ 222 
Hybrid transmission .................. 224 
Turn signal lever .......................... 231
Parking brake .............................. 232
Brake Hold....................................235 
4-3. Operating the lights  
and wipers 
Headlight switch ......................... 237
AHS (Adaptive High-beam  
System)......................................... 241 
Automatic High Beam ............. 246 
Fog light switch .......................... 250 
Windshield wipers  
and washer.................................. 251 
4-4. Refueling 
Opening the fuel tank cap ..... 257 
4-5. Using the driving support  
systems 
Lexus Safety System+ ................261 
PCS (Pre-Crash Safety  
system) ........................................ 270 
LKA (Lane-Keeping  
Assist) .......................................... 282 
RSA (Road Sign Assist) ............291 
Dynamic radar cruise  
control with full-speed 
range ............................................ 296 
Cruise control ............................ 308
Driving mode select switch ...... 311
BSM (Blind Spot Monitor) ...... 314 
•The Blind Spot Monitor  
function ..................................... 319
• The Rear Crossing Traffic 
Alert function...........................321 
Driving assist systems .............. 324 
4-6. Driving tips 
Hybrid vehicle driving tips ...... 331
Winter driving tips ..................... 334 

2024-1. Before driving
GS450h_300h_OM_OM30F92E_(EE)
■Breaking in your new Lexus 
To extend the life of the vehicle, observing the following precautions is recommended:
●For the first 300 km (186 miles): 
Avoid sudden stops.
●For the first 800 km (500 miles): Do not tow a trailer.
●For the first 1000 km (621 miles): 
• Do not drive at extremely high speeds. • Avoid sudden acceleration. 
• Do not drive continuously in low gears. • Do not drive at a constant speed for extended periods.
■Drum-in-disc type parking brake system 
Your vehicle has a drum-in-disc type parkin g brake system. This type of brake system needs bedding-down of the brake shoes periodically or whenever the parking brakeshoes and/or drum are replaced. Have any au thorized Lexus retailer or Lexus authorized 
repairer, or any reliable repairer  perform the bedding down operation.
■Operating your vehicle in a foreign country 
Comply with the relevant vehicle registration  laws and confirm the availability of the cor- 
rect fuel. ( P. 549) 

209
4 
4-1. Before driving
Driving
GS450h_300h_OM_OM30F92E_(EE)
Trailer towing (vehicles without towing package)
Lexus does not recommend towing a trailer with your vehicle. Lexus also does 
not recommend the installation of a tow hitch or the use of a tow hitch carrier 
for a wheelchair, scooter, bicycle, etc.  Your vehicle is not designed for trailer 
towing or for the use of tow hitch mounted carriers. 

2104-1. Before driving 
GS450h_300h_OM_OM30F92E_(EE)
Trailer towing (vehicles with towing package)
◆Weight limits 
Check the allowable towing capacity, GVM (Gross Vehicle Mass), MPAC 
(Maximum Permissible Axle Capacity), and permissible drawbar load before 
towing. ( P. 546)
◆Towing hitch/bracket 
Lexus recommends the use of the Lexus hitch/bracket for your vehicle. Other 
products of a suitable nature and comparable quality may also be used.
Your vehicle is designed primaril y as a passenger carrying vehicle. 
Towing a trailer will have an adverse  effect on handling, performance, brak- 
ing, durability, and fuel consumption.  Your safety and satisfaction depend on 
the proper use of correct equipment  and cautious driving habits. For your 
safety and the safety of others, do not overload the vehicle or trailer. 
To tow a trailer safely, use extreme care and drive the vehicle in accordance 
with the trailer’s characteristics and operating conditions. 
Lexus warranties do not apply to damage or malfunction caused by towing a 
trailer for commercial purposes. 
Ask your local authorized Lexus retailer or Lexus authorized repairer, or any 
reliable repairer for further details before  towing, as there are additional legal 
requirements in some countries. 

2114-1. Before driving
4
Driving
GS450h_300h_OM_OM30F92E_(EE)
■Total trailer weight and permissible drawbar load 
Total trailer weight
Weight of the trailer itself plus the trailer load should be within the max- 
imum towing capacity. Exceeding this weight is dangerous. ( P. 546) 
When towing a trailer, use a friction 
coupler or friction stabilizer (sway control device).
Permissible drawbar load
Allocate the trailer load so that the drawbar load is greater than 25 kg (55.1 lb.) or4% of the towing capacity. Do not let the drawbar load exceed the indicatedweight. ( P. 546)
■Information tag (manufacturer’s label) 
Gross vehicle mass
The combined weight of the driver, passengers, towing hitch, luggage, 
total curb mass and drawbar load should not exceed the gross vehiclemass by more than 100 kg (220.5 
lb.). Exceeding this weight is danger- ous.
Maximum permissible rear axle capacity
The weight borne by the rear axle should not exceed the maximum permissibleaxle capacity by 15% or more. Exceeding this weight is dangerous. 
The values for towing capacity were derived from testing conducted at sea level. 
Take note that engine output and towing  capacity will be reduced at high altitudes.
Important points regarding trailer loads
1
2
1
WARNING
■When the gross vehicle mass limit or maximum permissible axle capacity is exceeded 
Do not exceed the established speed limit fo r towing a trailer in built-up areas or 100 km/h (62 mph), whichever is lower. 
Failing to observe this precaution may lead  to an accident causing death or serious injury.
2