Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 GMC Terrain SLFACTORY OEM SERVICE PROCEDURE
Approximate Fluid Capacities
| Maintenance Procedure | Link |
|---|---|
| Automatic Transmission Fluid Capacities - 6T40 (MNH, MNK) or 6T45 (MHG) | Approximate Fluid Capacities |
| Automatic Transmission Fluid Capacities - 9T45 (M3U) or 9T50 (M3D, M3H) | Approximate Fluid Capacities |
| Engine Controls and Fuel Capacities - 1.5L (LYX) | Approximate Fluid Capacities |
| Engine Heating and Cooling Capacities | Approximate Fluid Capacities |
| Engine Mechanical - 1.5L (LYX) Capacities | Approximate Fluid Capacities |
| Heating, Ventilation, and Air Conditioning Capacities | Approximate Fluid Capacities |
| Hydraulic Brakes Capacities | Approximate Fluid Capacities |
| Power Transfer Unit/Transfer Case Capacities - AAM | Approximate Fluid Capacities |
| Rear Drive Axle Capacities | Approximate Fluid Capacities |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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