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GMC Hummer EV SUV

Maintenance specs for 2 variants of the GMC Hummer EV SUV — from 2024 to 2026.

20242026 GMC Hummer EV SUV

Ultium Dual Motor EV · AWD

625 hp / 7400 lb-ft

Transmission

TypeSingle-Speed Reduction
FluidMobil 1 Delvac EV

Coolant

TypeEV Battery Coolant (Dex-Cool compatible)
Shop coolant

Brake Fluid

TypeDOT 3
Shop DOT 3

Power Steering

TypeElectric (no fluid)

Fuel

Tanknull gal
TypeElectric

Tires

Size305/70R18
Pressure (front)42 PSI
Pressure (rear)42 PSI
Shop 305/70R18 tires

Battery

Group sizeH8
Shop group H8 battery

Wiper Blades

Driver24"
Passenger18"
Shop wiper blades

Service Intervals

Coolant flush150,000 mi
Timingchain (no scheduled replacement)
Cabin filter22,500 mi

20242026 GMC Hummer EV SUV

Ultium Triple Motor EV · AWD

830 hp / 1200 lb-ft

Transmission

TypeSingle-Speed Reduction
FluidMobil 1 Delvac EV

Coolant

TypeEV Battery Coolant (Dex-Cool compatible)
Shop coolant

Brake Fluid

TypeDOT 3
Shop DOT 3

Power Steering

TypeElectric (no fluid)

Fuel

Tanknull gal
TypeElectric

Tires

Size305/70R18
Pressure (front)42 PSI
Pressure (rear)42 PSI
Shop 305/70R18 tires

Battery

Group sizeH8
Shop group H8 battery

Wiper Blades

Driver24"
Passenger18"
Shop wiper blades

Service Intervals

Coolant flush150,000 mi
Timingchain (no scheduled replacement)
Cabin filter22,500 mi