2026 GMC Yukon Bulb Sizes

Last reviewed September 30, 2026

The short answer

The 2026 GMC Yukon has sealed LED headlights with no replaceable low-beam bulb.

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.

Bulb sizes

Low beam Sealed LED, no replaceable bulb
High beam 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

Wheel specs and lug torque

Bolt pattern 6x139.7 mm (6x5.5")
Lug seat cone
Lug nut torque 140 ft-lbs (190 Nm)

Key fob, battery and sensors

Key fob battery CR2450 Shop on Amazon
Relearn auto (after 20 minutes parked, drive 10 minutes above 12 mph)

Roof rack and roof load

Roof load limit 220 lb (100 kg), evenly spread, while driving
Rack mounting Raised side rails Shop crossbars on Amazon

Dimensions, weight and fuel

Fuel Gasoline
Octane 87 (regular)
Fuel tank 24 gal (91 L)

Worth knowing about the 2026 Yukon

  • LED lighting. The low beam, high beam, daytime running, front turn signal, rear turn signal, brake light, tail light, reverse light, license plate are sealed LED units with no user-replaceable bulb. A failure means replacing the assembly.
  • Torque. Tighten lug nuts to 140 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.
  • Key fob. Part numbers vary with the 3 to 6-button layouts, so match the number on your fob.
  • Roof load. The 220 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 220 lb limit includes the cross rails and any carrier, or the accessory maker's lower rating if it is less.
  • Fuel. For the 6.2L V8 the manual recommends 91 octane or higher, and the 3.0L Duramax diesel uses diesel fuel.