2010 Lexus SC Tire Size
The 2010 Lexus SC takes 245/40R18 tires. Recommended cold pressure: 33 psi.
✓ From the manual ·2010 Lexus SC owner's manual, p. 345
Factory tire sizes
245/40R18 93YFront and rear
- Width
- 245 mm (9.6 in)
- Wheel
- 18 in · 18 x 8 J
- Overall diameter
- 25.7 in
- Cold pressure
- 33 psi
- Load index
- 93 (1,433 lb)
- Speed rating
- Y (up to 186 mph)
Spare tire
T145/70R17 106MSpare (temporary)
- Width
- 145 mm (5.7 in)
- Wheel
- 17 in · 17 x 4 T
- Overall diameter
- 25 in
- Load index
- 106 (2,094 lb)
- Speed rating
- M (up to 81 mph)
A temporary spare is for short trips at reduced speed, usually no faster than 50 mph. Follow the limit printed on the spare and in your manual, and replace the flat as soon as you can.
Questions
What size tires does a 2010 Lexus SC have?
The 2010 Lexus SC takes 245/40R18 tires.
What tire pressure does a 2010 Lexus SC need?
The manual gives 33 psi, measured with the tires cold. Check it before driving, and go by the door-jamb label if it differs, because that is set for your exact car.
Can I fit a different tire size on my 2010 Lexus SC?
Stick to a factory size for your wheel unless a tire shop confirms the swap. A different overall diameter changes speedometer readings and can upset ABS and stability control, and the load index must be at least the original.