You do not need technical language. A few accurate details about the location, vehicle, problem, and destination give dispatch a useful starting point.
Give a precise location
Use an address, cross street, highway direction, nearest exit, business entrance, landmark, or map pin.
Describe the vehicle and condition
Provide the year, make, model, drivetrain or modifications when relevant, and whether the vehicle starts, rolls, steers, and brakes.
Explain access and destination
Mention low clearance, gates, slopes, soft ground, parking structures, or limited working room, plus the preferred towing destination.