2021 Lexus RX Wiper Sizes, Bulb Sizes & Tire Sizes
The short answer
The 2021 Lexus RX takes 26" driver and 21" passenger wiper blades, has sealed LED headlights with no replaceable low-beam bulb, and rides on 235/65R18 tires as standard (RX 350, RX 450h, RX 350L, RX 450hL); RX 350 F SPORT and RX 450h F SPORT and RX 350 with 20-in wheel package and RX 450h with 20-in wheel package use 235/55R20.
Wiper blade sizes
Driver side
26" Shop on Amazon
Passenger side
21" Shop on Amazon
Tire sizes by trim
RX 350, RX 450h, RX 350L, RX 450hL (standard)
235/65R18 106V · 33 psi See tires at Amazon
RX 350 F SPORT, RX 450h F SPORT, RX 350 with 20-in wheel package, RX 450h with 20-in wheel package
235/55R20 102V · 33 psi See tires at Amazon
The size on the placard inside the driver's door jamb is the one your car left the factory with. Match that, not this table, if they differ; a previous owner may have changed wheels.
Bulb sizes
Low beam
Sealed LED, no replaceable bulb
High beam
Sealed LED, no replaceable bulb
Fog light
Sealed LED, no replaceable bulb
Daytime running
Sealed LED, no replaceable bulb
Front turn signal
7444NA Shop on Amazon
Rear turn signal
WY21W Shop on Amazon
Brake light
Sealed LED, no replaceable bulb
Tail light
Sealed LED, no replaceable bulb
Reverse light
921 Shop on Amazon
License plate
Sealed LED, no replaceable bulb
Wheel specs and lug torque
Bolt pattern
5x114.3 mm (5x4.5")
Center bore
60.1 mm
Lug thread
M12x1.5 Shop on Amazon
Lug nut torque
76 ft-lbs (103 Nm)
Factory wheel sizes
18x8, 20x8
Key fob, battery and sensors
Key fob battery
CR2032 Shop on Amazon
Replacement fob
FCC ID HYQ14FLB · part 89904-48V80 · 4-button · smart key Shop on Amazon
Frequency
315 MHz
Relearn
tool (new sensor ID codes are registered by a Lexus dealer; after a pressure change, initialize through the multi-information display)
Roof rack and roof load
Roof load limit
165 lb (75 kg), evenly spread, while driving
Dimensions, weight and fuel
Length
192.5" (489 cm)
Width
74.6" (189 cm)
Height
67.7" (172 cm)
Wheelbase
109.8" (279 cm)
Fuel
Gasoline
Octane
87 (regular)
Fuel tank
19.2 gal (73 L)
Worth knowing about the 2021 RX
- Wipers. Rain-X lists push-button (PTB) front arms and a Toyota-type rear arm, so choose blades listed for this model rather than by length alone.
- LED lighting. The low beam, high beam, fog light, daytime running, brake light, tail light, license plate are sealed LED units with no user-replaceable bulb. A failure means replacing the assembly.
- Bulbs. The bulb-type turn signals and back-up lights apply to models with single-beam LED headlights; models with triple-beam headlights use sealed LED units.
- Spare. This vehicle carries a compact (temporary) spare.
- Tire chains. The manual permits chains or cables, on the drive wheels only, fitted to the standard tire size. Chains for this size on Amazon →
- Tires. Tire chains go on the front tires only, and the compact spare is a T165/90D18.
- Torque. Tighten lug nuts to 76 ft-lbs in a star pattern with a torque wrench, and re-check after the first 50 miles. This figure is from the owner's manual; an impact gun will overshoot it.
- TPMS. New sensors on this car need a relearn (tool (new sensor ID codes are registered by a Lexus dealer; after a pressure change, initialize through the multi-information display)); they will not pair on their own by driving.
- Key fob. Match the FCC ID (HYQ14FLB) printed on the back of your fob when buying a replacement; the same car can use two fob designs in one year. A new fob still needs programming to the car.
- Roof load. The 165 lb roof limit is the dynamic figure for driving and includes the rack itself. It is not a limit for a rooftop tent when parked; the manual gives no static figure.
- Roof. The limit applies to the roof luggage carrier on vehicles with roof rails.
- Dimensions. The figures above are for the RX 350 two-row; other body configurations differ in length, wheelbase and weight.
- Dimensions. The three-row RX 350L and RX 450hL are 196.9 in. long.
- Fuel. The RX 450h hybrid holds 17.2 gal and takes 91 octane.