Fluid · Coolant
Coolant
for 2022 GMC Hummer EV Pickup Electric Tri-Motor · AWD
Fluid Type
ACDelco DEX-COOL EV extended life OAT coolant
Spec: GM 6277M or DEX-COOL EV
Capacity
10qt
9.46 L
Drain & Refill
8 qt
7.57 L
Change Interval
150,000 mi
241,350 km
Data quality
Calibrated
Platform-calibrated book-style value. Verification program ongoing.
Notes
Battery thermal management system and power electronics cooling. Special EV formulation. First change 150k miles, then every 5 years/150k.
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