There’s only one to my knowledge. You gotta take the drivers seat out and pull back the carpet. You’ll see it there. It’s a small box with a plug in and it’s bolted to the floor with one I believe 10 mm nut on a stud made into the floor. I think it’s called a “tilt and yaw sensor”.

 

thank you so much. I'm going to place a order now for the yaw sensor and replace it. It everyone posted.

 

I notice my hummer yesterday was not sometimes shifting unless I let go the gas. Would the yaw sensor cause this?

 

it shouldn’t. The yaw sensor only ties into the traction and stability controls which impact the ABS as well. My dad and I both had to replace the tranny at about 150k miles. There seem to be several weak points in these rigs.

 

thank you