The exact location varies by vehicle. If it is not easily spotted under the dash on the driver's side, try opening the door and looking at the side of the dash. That was a common location at one time.

Yr make model ? We could have answered with that info But since you don't list it its either on the left side of the steering wheel near the floor or the right side of the wheel There is an Open-able panel there

Happy hunting

Lr

Depends on the vehicle ...some are on the side of the dash .(mostly driver side but can be passenger).

Check your owners manual.

year and make of car