What transmission fluid does a 2019 Sierra 1500 use?
6-speed: DEXRON-VI. 8-speed: DEXRON-HP. 10-speed: DEXRON ULV, GM 19352619, Canada 19352620. The book does not tie those to an engine.
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In-depth guide
2019 GMC Sierra 1500
2019 Sierra 1500 lists DEXRON-VI for the 6-speed, DEXRON-HP for the 8-speed, and DEXRON ULV for the 10-speed. The book does not map those fluids to an engine.
| Item | Figure |
|---|---|
| 6-speed | DEXRON-VI automatic transmission fluid. |
| 8-speed | DEXRON-HP automatic transmission fluid. |
| 10-speed | DEXRON ULV. GM 19352619, in Canada 19352620. |
| Transfer case, four-wheel drive | DEXRON-VI. This is the transfer case, not the transmission. |
| Axles | See the dealer. No axle fluid name is printed on the row that was read. |
Source: owner's manual / last verified 2026-10-16 (2019 GMC Sierra/Sierra Denali owner's manual, part number 23400205 A, First Printing. Gasoline pages. The book says a diesel engine uses the separate Duramax supplement. (opens in a new tab)).
Difficulty, time, and cost are estimates when this guide gives them. Torque is a cited figure, or it is left off.
Main source: 2019 GMC Sierra/Sierra Denali owner's manual, part number 23400205 A, First Printing. Gasoline pages. The book says a diesel engine uses the separate Duramax supplement. (opens in a new tab), General Motors, published 2019-01-01, read 2026-10-16.
| Item | Figure | Where it comes from |
|---|---|---|
| 6-speed | DEXRON-VI automatic transmission fluid. | Recommended fluids |
| 8-speed | DEXRON-HP automatic transmission fluid. | Recommended fluids |
| 10-speed | DEXRON ULV. GM 19352619, in Canada 19352620. | Recommended fluids |
| Transfer case, four-wheel drive | DEXRON-VI. This is the transfer case, not the transmission. | Recommended fluids |
| Axles | See the dealer. No axle fluid name is printed on the row that was read. | Recommended fluids |
6-speed, 8-speed, or 10-speed. The engine name is not the key on this page.
DEXRON ULV only on the 10-speed, with GM 19352619.
None was printed.
10-speed fluid is GM 19352619, Canada 19352620. Four-wheel-drive transfer case fluid is DEXRON-VI. Front and rear axle fluid says see the dealer. No transmission capacity is printed. Do not guess which engine uses which transmission.
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Part
DEXRON ULV automatic transmission fluid
GM 19352619, Canada 19352620. Listed for the 10-speed, not mapped to an engine on the page.
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6-speed: DEXRON-VI. 8-speed: DEXRON-HP. 10-speed: DEXRON ULV, GM 19352619, Canada 19352620. The book does not tie those to an engine.
Not printed.
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