GMC Canyon, GMT31XX (USA / CAN)

Automatic transmission fluid capacity & service interval

GMC Canyon, GMT31XX (USA / CAN) uses automatic transmission fluid with a capacity range of 6,3 to 10,3 liters. Service intervals include 45000 miles and 97500 miles. The data covers 12 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
Canyon 2.5 (2018-2022)
  • Use: Normal
  • Capacity 9,3 liter (Overhaul capacity)
  • Capacity 6,3 liter (Service fill)
  • Code: 6L50 6/1
Canyon 2.5 (2018-2022)
  • Use: Severe
  • Capacity 9,3 liter (Overhaul capacity)
  • Capacity 6,3 liter (Service fill)
  • Change 45000 miles
  • Code: 6L50 6/1
Canyon 2.5 AWD (2018-2022)
  • Use: Normal
  • Capacity 9,3 liter (Overhaul capacity)
  • Capacity 6,3 liter (Service fill)
  • Code: 6L50 6/1
Canyon 2.5 AWD (2018-2022)
  • Use: Severe
  • Capacity 9,3 liter (Overhaul capacity)
  • Capacity 6,3 liter (Service fill)
  • Change 45000 miles
  • Code: 6L50 6/1
Canyon 3.6 V6 (2018-2022)
  • Use: Normal
  • Capacity 10,3 liter (Overhaul capacity)
  • Capacity 7 liter (Service fill)
  • Code: 8L45 8/1
Canyon 3.6 V6 (2018-2022)
  • Use: Severe
  • Capacity 10,3 liter (Overhaul capacity)
  • Capacity 7 liter (Service fill)
  • Change 45000 miles
  • Code: 8L45 8/1
Canyon 3.6 V6 AWD (2018-2022)
  • Use: Normal
  • Capacity 10,3 liter (Overhaul capacity)
  • Capacity 7 liter (Service fill)
  • Code: 8L45 8/1
Canyon 3.6 V6 AWD (2018-2022)
  • Use: Severe
  • Capacity 10,3 liter (Overhaul capacity)
  • Capacity 7 liter (Service fill)
  • Change 45000 miles
  • Code: 8L45 8/1
Canyon 2.8 TD DPF (2017-2022)
  • Use: Normal
  • Capacity 9,3 liter (Overhaul capacity)
  • Capacity 6,3 liter (Service fill)
  • Change 97500 miles
  • Code: 6L50 6/1
Canyon 2.8 TD DPF (2017-2022)
  • Use: Severe
  • Capacity 9,3 liter (Overhaul capacity)
  • Capacity 6,3 liter (Service fill)
  • Change 45000 miles
  • Code: 6L50 6/1
Canyon 2.8 TD DPF (2017-2022)
  • Use: Normal
  • Capacity 10,3 liter (Overhaul capacity)
  • Capacity 7 liter (Service fill)
  • Change 97500 miles
  • Code: 8L45 8/1
Canyon 2.8 TD DPF (2017-2022)
  • Use: Severe
  • Capacity 10,3 liter (Overhaul capacity)
  • Capacity 7 liter (Service fill)
  • Change 45000 miles
  • Code: 8L45 8/1

Additional Notes

  • The GMC Canyon automatic transmission specifications list two distinct capacity figures for every configuration: an overhaul capacity and a service fill capacity. The overhaul capacity reflects the total fluid volume required when the transmission is fully disassembled and rebuilt, while the service fill capacity represents the smaller volume needed when fluid is drained and refilled during routine maintenance without a complete teardown.
  • The 2.5-liter and 2.5-liter AWD configurations (2018-2022) share an overhaul capacity of 9.3 liters and a service fill capacity of 6.3 liters. The difference of 3.0 liters between the two figures accounts for fluid retained in the torque converter and transmission passages during a standard drain procedure.
  • The 3.6 V6 and 3.6 V6 AWD configurations (2018-2022) carry a larger overhaul capacity of 10.3 liters and a service fill capacity of 7.0 liters, reflecting the greater fluid volume associated with the transmission paired to the larger displacement engine.
  • The 2.8 TD DPF diesel configurations (2017-2022) appear with two separate sets of capacity figures. One set lists 9.3 liters overhaul and 6.3 liters service fill, while a second set lists 10.3 liters overhaul and 7.0 liters service fill, indicating that the diesel engine was paired with more than one automatic transmission variant across the model range.
  • Under severe use conditions, a 45,000-mile change interval applies uniformly across all configurations in the specifications, including the 2.5, 2.5 AWD, 2.8 TD DPF, 3.6 V6, and 3.6 V6 AWD. Severe use typically encompasses conditions such as frequent towing, trailer hauling, off-road operation, or repeated short-trip driving that places greater thermal and mechanical stress on transmission fluid.
  • The 2.8 TD DPF diesel under normal use conditions carries a change interval of 97,500 miles, which is more than double the 45,000-mile interval specified for severe use on the same engine. The same 97,500-mile normal-use interval appears across both capacity variants of the 2.8 TD DPF configuration.
  • No normal-use change interval is listed for the 2.5, 2.5 AWD, 3.6 V6, or 3.6 V6 AWD configurations. Only the severe-use rows for those configurations include a mileage-based change interval of 45,000 miles.
  • The AWD variants of both the 2.5 and 3.6 V6 share identical automatic transmission fluid capacities and change intervals with their two-wheel-drive counterparts. The addition of all-wheel drive hardware does not alter the transmission fluid specifications in the data provided.

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