ServlogUpdated 2026-07-02
GMC Acadia Transmission Fluid: Change Interval
Compiled & reviewed by Nikolai Tsyrenov · Updated 2026-07-02
When to change the transmission fluid on a 2024-2025 (new gen) GMC Acadia.
In short: GMC Acadia transmission fluid: 8-speed auto; fluid & filter ~100,000 mi (towing/severe ~45k-60k).
| Transmission Fluid interval | 8-speed auto; fluid & filter ~100,000 mi (towing/severe ~45k-60k) |
|---|---|
| Engine / drivetrain | 2.5L turbo-4 (LK0); 0W-20 dexos1 Gen 3; 8-speed auto |
| Model years | 2024-2025 (new gen) |
Why it matters: Transmission fluid lubricates and cools the gearbox. "Lifetime fill" really means "lifetime of the warranty" — heat from towing, hills and stop-and-go traffic ages it much faster.
A drain-and-fill (not a flush) is the safe approach, especially on higher-mileage cars. Use ONLY the exact fluid spec for your transmission — the wrong fluid can ruin a CVT or automatic.
GMC Acadia note: The all-new 2024 Acadia drops the old V6 for a turbo-four with an 8-speed auto. Being turbocharged, keep 0W-20 dexos1 Gen 3 on time and don't stretch oil past the monitor, especially when towing.
FAQ
How often should you change the transmission fluid in a GMC Acadia?
8-speed auto; fluid & filter ~100,000 mi (towing/severe ~45k-60k).
Should I flush or drain-and-fill the transmission on a GMC Acadia?
Prefer a drain-and-fill. A pressure flush on an old, never-serviced transmission can dislodge debris; a simple drain-and-fill (repeated if needed) is the gentler, widely recommended option.
Where can I check all GMC Acadia service intervals?
The full GMC Acadia maintenance schedule covers oil, tires, fluids, filters and major milestones for the 2024-2025 (new gen) model years.
← Full GMC Acadia maintenance schedule · Transmission Fluid intervals for all cars
General guidance — confirm against your GMC Acadia owner's manual.
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