2026 Lexus IS Bulb Sizes & Tire Sizes

Last reviewed October 16, 2026

The short answer

The 2026 Lexus IS has sealed LED headlights with no replaceable low-beam bulb, and came on 235/40R19, 265/35R19 depending on trim.

Some values on this page are still waiting for a second source. We show what we have and mark it; confirm against your owner's manual before you buy.

Shop buttons go to Amazon. As an Amazon Associate, FitsYourCar earns from qualifying purchases; it never changes a size we list. How we make money.

Tire sizes by trim

Trim not confirmed 235/40R19 · 35 front / 36 rear psi Search Amazon for 235/40R19 tires
Trim not confirmed 265/35R19 Search Amazon for 265/35R19 tires

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 7440NA Search Amazon for 7440NA bulbs
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

Lug nut torque 103 ft-lbs (140 Nm)
Factory wheel sizes 19x8.5, 19x9.5

Key fob, battery and sensors

Key fob battery CR2032 Search Amazon for CR2032
Relearn auto (drive): register the new sensor ID codes from the vehicle settings menu on the display, then drive at about 25 mph or more for 10 to 30 minutes

Dimensions, weight and fuel

Length 185.4" (471 cm)
Width 72.4" (184 cm)
Height 56.5" (144 cm)
Wheelbase 110.2" (280 cm)
Fuel Gasoline
Octane 91 (premium)
Fuel tank 17.5 gal (66 L)

Worth knowing about the 2026 IS

  • 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.
  • Bulbs. Cars with LED front turn signals have sealed units in place of the 7440NA bulb.
  • Spare. This vehicle carries a compact (temporary) spare, size T155/70D17. Search Amazon for spare tires →
  • Tire chains. The manual permits tire chains or cables, within limits on which tires and which wheels. Those limits are in the next note; read them before you fit anything. Search Amazon for tire chains →
  • Tires. Tire chains go on the rear tires only, and the manual says chains cannot be mounted on cars with different front and rear tire sizes.
  • Torque. Tighten lug nuts to 103 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.
  • Wheels. The IS uses wheel bolts threaded into the hub instead of studs and nuts.
  • Dimensions. Some models stand 56.7 inches tall.
  • Octane. Premium (91 octane) is required, not recommended; the manual says so.