2020 Mazda CX-30 Bulb Sizes & Tire Sizes

Last reviewed October 11, 2026

The short answer

The 2020 Mazda CX-30 has sealed LED headlights with no replaceable low-beam bulb, and rides on 215/65R16 tires as standard (Base); Select Package, Preferred Package and Premium Package use 215/55R18.

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.

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Tire sizes by trim

Base (standard) 215/65R16 98H · 36 psi Search Amazon for 215/65R16 tires
Select Package, Preferred Package, Premium Package 215/55R18 95H · 36 psi Search Amazon for 215/55R18 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 Sealed LED, no replaceable bulb
Rear turn signal Sealed LED, no replaceable bulb
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
Dome / map light Sealed LED, no replaceable bulb

Wheel specs and lug torque

Factory wheel sizes 16x6.5, 18x7

Key fob, battery and sensors

Key fob battery CR2032 Search Amazon for CR2032
Relearn auto (drive)

Dimensions, weight and fuel

Figures for the 2.5L AWD.

Length 173" (439 cm)
Width 70.7" (180 cm)
Height 62.2" (158 cm)
Wheelbase 104.4" (265 cm)
Fuel Gasoline
Octane 87 (regular)
Fuel tank 12.7 gal (48 L)

Worth knowing about the 2020 CX-30

  • LED lighting. The low beam, high beam, fog light, daytime running, front turn signal, rear turn signal, brake light, tail light, reverse light, license plate, dome / map light are sealed LED units with no user-replaceable bulb. A failure means replacing the assembly.
  • Spare. This vehicle carries a compact (temporary) spare, size T135/80D17. 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. The manual allows chains on the front tires only and names no size limit.
  • Wheels. The manual gives a lug nut torque range of 80 to 108 lb-ft.
  • Dimensions. The figures above are for the 2.5L AWD; other body configurations differ in length, wheelbase and weight.
  • Dimensions. The manual lists separate GVWR figures by drive and cylinder deactivation, so GVWR is left blank.
  • Fuel. FWD models hold 13.5 gallons.