LEXUS RX350 2020 Owners Manual
Page 451 of 516
451
8
8
Vehicle specifications
Vehicle specifications
.8-1. SpecificationsMaintenance data (fuel, oil level, etc.) .............................................. 452
Fuel information ......................... 459
Tire information........................... 461
8-2. Customization Customizable features............ 470
8-3. Initialization Items to initialize ........................ 483 
Page 452 of 516
4528-1. Specifications
8-1.Specifications
*1:RX350
*2:RX350L
*3:Unladen vehicle
*4: For GGL25L-BWZGBA models*9
*5
:Except for GGL25L-BWZGBA models*9
*6
: Vehicles with separate -type second-row seats
*7: Vehicles with bench-type second-row seats
*8: Vehicles with towing package
*9: The model code is indicated  on the Certification Label. (P.452)
■Vehicle identification number
The vehicle identification number  (VIN) is the legal identifier for your 
vehicle. This is the primary identifica-
Maintenance data (fuel, oil level, etc.)
Dimensions and weight
Overall length192.5 in. (4890 mm)*1
196.9 in. (5000 mm)*2
Overall width74.6 in. (1895 mm)
Overall height*367.7 in. (1720 mm)
Wheelbase109.8 in. (2790 mm)
Tread
Front64.4 in. (1635 mm)*1
64.5 in. (1640 mm)*2
Rear64.0 in. (1625 mm)*1
64.1 in. (1630 mm)*2
Vehicle capacity weight
(Occupants + luggage)
1050 lb. (480 kg)*1, 4
920 lb. (420 kg)*1, 5
1140 lb. (520 kg)*2, 6
1235 lb. (560 kg)*2, 7
Trailer Weight Rating*8
(Trailer weight + cargo weight)3500 lb. (1585 kg)
Vehicle identification 
Page 453 of 516
4538-1. Specifications
8
Vehicle specifications
tion number for your Lexus. It is used in 
registering the ownership of your vehi-
cle.
This number is stamped on the top left 
of the instrument panel.
On some models, this number is also 
stamped under the right-hand front 
seat.This number is also on the Certification 
Label.
■Engine number
The engine number is stamped on the 
engine block as shown.
Engine
Model3.5 L 6-cylinder (2GR-FKS)
Type6-cylinder V type, 4-cycle, gasoline
Bore and stroke3.70   3.27 in. (94.0   83.0 mm)
Displacement210.9 cu. in. (3456 cm3)
Valve clearance (engine cold)Automatic adjustment
Drive belt tensionAutomatic adjustment 
Page 454 of 516
4548-1. Specifications
■Oil capacity (Drain and refillref-
erence
*)
*: The engine oil capacity is a reference  quantity to be used when changing the 
engine oil. Warm up  and turn off the 
engine, wait more than 5 minutes, and 
check the oil level on the dipstick.
■Engine oil selection
“Toyota Genuine Motor Oil” is used in 
your Lexus vehicle. Use Lexus 
approved “Toyota Genuine Motor Oil” 
or equivalent to satisfy the following 
grade and viscosity.
Oil grade: ILSAC GF-5 multigrade 
engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice for 
good fuel economy and good starting 
in cold weather. If SAE 0W-20 is not available, SAE 
5W-20 oil may be used. However, it 
must be replaced with SAE 0W-20 at 
the next oil change.
Outside temperature
Oil viscosity (0W-20 is explained here 
as an example):
• The 0W in 0W-20 indicates the  characteristic of the oil which allows 
cold startability. Oils with a lower 
value before the W allow for easier 
starting of the engine in cold 
weather.
• The 20 in 0W-20 indicates the vis- cosity characteristic of the oil when 
the oil is at high temperature. An oil 
with a higher viscosity (one with a 
higher value) may be better suited if 
the vehicle is operated at high 
speeds, or under extreme load con-
ditions.
Fuel
Fuel typeUnleaded gasoline only
Octane Rating87 (Research Octane Number 91) or higher
Fuel tank capacity
(Reference)19.2 gal. (72.5 L, 15.9 Imp. gal.)
Lubrication system
With filter
Vehicles with towing pack-
age
5.8 qt. (5.5 L, 4.8 Imp. qt.)
Vehicles without towing 
package
5.7 qt. (5.4 L, 4.8 Imp. qt.)
Without fil-
ter5.6 qt. (5.3 L, 4.7 Imp. qt.)
A 
Page 455 of 516
4558-1. Specifications
8
Vehicle specifications
How to read oil container label:
The International Lubricant Specifica-
tion Advisory Committee (ILSAC) 
Certification Mark is added to some oil 
containers to help you select the oil you 
should use.
*: The coolant capacity is a reference quantity.If replacement is necessary, contact your Lexus dealer.
Cooling system
Capacity*
RX350 (Vehicles without 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 orga nic acid technology
Do not use plain water alone.
Ignition system (spark plug)
MakeDENSO FK20HBR8
Gap0.03 in. (0.8 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs.  Do not adjust the spark plug gap. 
Page 456 of 516
4568-1. Specifications
*: The fluid capacity is a reference quantity.If replacement is necessary, contact your Lexus dealer.
Your Lexus vehicle is filled  with “Toyota Genuine Differential Gear Oil” at the fac-
tory. Use Lexus approved “Toyota Genuine Di fferential Gear Oil” or an equivalent 
of matching quality to satisfy the above  specification. Please contact your Lexus 
dealer for further details.
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 rates5 A max.
Automatic transmission
Fluid capacity*7.2 qt. (6.8 L, 6.0 Imp. qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Transmission fluid type
Using transmission fluid other than “Toyota  Genuine ATF WS” may cause deterioration in 
shift quality, locking up of  your transmission accompanied by vibration, and ultimately 
damage the transmission of your vehicle.
Transfer (AWD models)
Oil capacity0.8 qt. (0.8 L, 0.7 Imp. qt.)
Oil type and viscosityToyota Genuine Differential gear oil LT 75W-85 GL-5 
or equivalent
Rear differential (AWD models)
Oil capacity0.5 qt. (0.5 L, 0.4 Imp. qt.)
Oil type and viscosityToyota Genuine Differential gear oil LT 75W-85 
GL-5 or equivalent 
Page 457 of 516
4578-1. Specifications
8
Vehicle specifications
Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the fac-
tory. Use Lexus approved “Toyota Genuine Di fferential Gear Oil” or an equivalent 
of matching quality to satisfy the above  specification. Please contact your Lexus 
dealer for further details.
*: Minimum pedal clearance when depressed with  a force of 110 lbf (490 N, 50 kgf) while 
the engine is running.
Type A
Brakes
Pedal clearance*3.4 in. (86 mm) Min.
Pedal free play0.04   0.24 in. (1.0   6.0 mm)
Brake pad wear limit0.04 in. (1.0 mm)
Fluid typeFMVSS No. 116 DOT 3 or SAE J1703
Steering
Free playLess than 1.2 in. (30 mm)
Tires and wheels
Tire size235/65R18 106V, 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 5 psi (30 kPa, 0.3 kgf/cm
2 or bar) to the front and rear 
tires. Never exceed the maximum cold tire inflation pres-
sure indicated on the tire sidewall.
Wheel size18   8J, 18   4T (spare)
Wheel nut torque76 ft•lbf (103  N•m, 10.5 kgf•m) 
Page 458 of 516
4588-1. Specifications
Type B
A: Wedge base bulbs (amber)
B: Wedge base bulbs (clear)
*1: Vehicles with sing le-beam headlights
*2: Vehicles without door trim ornament lights
Tire size235/55R20 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 pres-
sure indicated on the tire sidewall.
Wheel size20   8J, 18   4T (spare)
Wheel nut torque76 ft•lbf (103  N•m, 10.5 kgf•m)
Light bulbs
Light bulbsBulb No.WType
Exterior
Front side marker lights*1W5W5B
Front turn signal lights*17444NA28/8A
Rear turn signal lights*1WY21W21A
Back-up lights*192116B
InteriorDoor courtesy lights*25B
Vanity lights8B 
Page 459 of 516
4598-1. Specifications
8
Vehicle specifications
■Gasoline quality
In very few cases, driveability problems may 
be caused by the brand of gasoline you are 
using. If driveability  problems persist, try 
changing the brand of gasoline. If this does 
not correct the problem, consult your Lexus 
dealer.
■Recommendation of the use of gasoline 
containing detergent additives
●Lexus recommends the use of gasoline 
that contains detergent additives to avoid 
the build-up of engine deposits.
●All gasoline sold in the U.S.A. contains 
minimum detergent additives to clean 
and/or keep clean intake systems, per 
EPA’s lowest additive s concentration pro-
gram.
●Lexus strongly recommends the use of 
Top Tier Detergent Gasoline. For more 
information on Top Tier Detergent Gaso-
line and a list of marketers, please go to 
the official websit e www.toptiergas.com.
■Recommendation of the use of low 
emissions gasoline
Gasolines containing oxygenates such as 
ethers and ethanol, as well as reformulated 
gasolines, are available in some cities. 
These fuels are typically acceptable for use, 
providing they meet other fuel require- ments.
Lexus recommends these fuels, since the 
formulations allow for reduced vehicle 
emissions.
■Non-recommendation of the use of 
blended gasoline
●Use only gasoline containing up to 15% 
ethanol.
DO NOT use any flex-fuel or gasoline 
that could contain more than 15% etha-
nol, including from
 any pump labeled 
E30 (30% ethanol [ ]), E50 (50% 
ethanol [ ]), E85 (85% ethanol [ ]) 
(which are only some examples of fuel 
containing more than 15% ethanol).
●If you use gasohol in your vehicle, be sure 
that it has an octane rating no lower than 
87.
●Lexus does not recommend the use of 
gasoline containing methanol.
■Non-recommendation of the use of gas-
oline containing MMT
Some gasoline contains an octane enhanc-
ing additive called MMT (Methylcyclopen-
tadienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gas-
oline that contains MMT. If fuel containing 
MMT is used, your emission control system 
may be adversely affected.
The malfunction indicator lamp on the 
instrument cluster may come on. If this hap-
pens, contact your Lexus dealer for service.
■If your engine knocks
●Consult your Lexus dealer.
●You may occasionally notice light knock-
ing for a short time wh ile accelerating or 
driving uphill. This is normal and there is 
no need for concern.
Fuel information
You must only use unleaded gaso-
line.
Select octane rating 87 (Research 
Octane Number 91) or higher. Use 
of unleaded gasoline with an 
octane rating lower than 87 may 
result in engine knocking. Per-
sistent knocking can lead to engine 
damage.
At minimum, the gasoline you use 
should meet the specifications of 
ASTM D4814 in the U.S.A.
A
BC 
Page 460 of 516
4608-1. Specifications
NOTICE
■Notice on fuel quality
●Do not use improper fuels. If improper 
fuels are used, the engine will be dam-
aged.
●Do not use leaded gasoline.
Leaded gasoline can cause damage to 
your vehicle’s three-way catalytic con-
verters causing the emission control 
system to malfunction.
●Do not use gasohol other than the type 
previously stated.
Other gasohol may cause fuel system 
damage or vehicle performance prob-
lems.
●Using unleaded gasoline with an 
octane number or rating lower than 
the level previously stated will cause 
persistent heavy knocking.
At worst, this will lead to engine dam-
age.
■When refueling with gasohol
Take care not to spill  gasohol. It can dam-
age your vehicle’s paint.
■Fuel-related poor driveability
If poor driveability (poor hot starting, 
vaporization, engine knocking, etc.) is 
encountered after using a different type 
of fuel, discontinue the use of that type of 
fuel.