To be certain, you'll need to:
* Consult your vehicle's repair manual: This will show the exact location for your specific year and model.
* Look at a diagram: Online parts diagrams for your specific year and model (using the VIN is helpful) will usually depict the location of the oil sending unit.
* Visually inspect your oil pan: Once you're underneath the vehicle, you'll likely spot a sensor or unit that looks like it fits the description of an oil sending unit. It will have wiring connected to it. Be cautious when working under a vehicle and ensure the engine is cool.
Remember to be careful when working under your vehicle. Use jack stands and follow safety procedures.