2018 Lexus IS Wiper Sizes, Bulb Sizes & Tire Sizes
The short answer
The 2018 Lexus IS takes 24" driver and 18" passenger wiper blades, has sealed LED headlights with no replaceable low-beam bulb, and rides on 225/45R17 tires as standard (IS 300, IS 300 AWD); IS 350 (front axle) and IS 350 AWD (front axle) and F SPORT (front axle) use 225/40R18, IS 350 (rear axle) and IS 350 AWD (rear axle) and F SPORT (rear axle) use 255/35R18.
Wiper blade sizes
Driver side
24" · j-hook connector Shop on Amazon
Passenger side
18" · j-hook connector Shop on Amazon
Tire sizes by trim
IS 300, IS 300 AWD (standard)
225/45R17 · 36 psi See tires at Amazon
IS 350 (front axle), IS 350 AWD (front axle), F SPORT (front axle)
225/40R18 See tires at Amazon
IS 350 (rear axle), IS 350 AWD (rear axle), F SPORT (rear axle)
255/35R18 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
7440NA Shop on Amazon
Brake light
Sealed LED, no replaceable bulb
Tail light
Sealed LED, no replaceable bulb
Reverse light
Sealed LED, no replaceable bulb
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 seat
cone
Lug nut torque
76 ft-lbs (103 Nm)
Factory wheel sizes
17x7.5, 18x8, 18x8.5
Key fob, battery and sensors
Key fob battery
CR2032 Shop on Amazon
Replacement fob
FCC ID HYQ14FBA · 4-button · smart key Shop on Amazon
Relearn
tool (new sensor IDs are registered by a Lexus dealer)
Dimensions, weight and fuel
Length
184.3" (468 cm)
Width
71.3" (181 cm)
Height
56.3" (143 cm)
Wheelbase
110.2" (280 cm)
Fuel
Gasoline
Octane
91 (premium)
Fuel tank
17.5 gal (66 L)
Worth knowing about the 2018 IS
- Connector. Both front blades use a j-hook connector. A blade of the right length with the wrong connector will not clip on, so check the connector before you buy.
- LED lighting. The low beam, high beam, fog light, daytime running, brake light, tail light, reverse light, license plate are sealed LED units with no user-replaceable bulb. A failure means replacing the assembly.
- 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 rear 17-inch tires only, and the manual says chains cannot be mounted on the staggered 18-inch tires.
- 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 IDs are registered by a Lexus dealer)); they will not pair on their own by driving.
- Key fob. Match the FCC ID (HYQ14FBA) 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.
- Octane. Premium (91 octane) is required, not recommended; the manual says so.