My steering wheel heater just stop working on my 2015 F Type R with flat button wheel. It worked a couple of days ago....fuse maybe? The button lights up when pushed but no heat.

Does anyone know where the fuse is for this function?

 

In my Owners Handbook on page 171 it is shown as fuse F20 10A red in the passenger side foot well fuse box, your Handbook should show the same.

 

Is that fuse box always on the passenger side, or always on the right side of the car?

 

It’s always on the right side of my car. Took me some time to locate it initially, as ‘passenger footwell’ was all I had to go by. (For those looking, it’s under the carpet, not up under the dash where I tried to find it.)

 

My MY18 handbook says my passenger side fuse box is in the left side A pillar. I think, but can't provide definitive evidence thus far, that it's actually under the left side floor carpet (too lazy to lift stuff that doesn't really need lifting!).

 

Mine is definitely in the LHS floor well, under a carpeted panel which lifts/pries off.
That panel is held on by three or four door trim type clips.
Now mine is RHD so the "passenger side" is on the left and I am fairly sure that on LHD cars this fuse box is on the other side (RHS), again on the floor under a carpeted panel, as it seems DJS has confirmed. This particular fuse box is waaaay too big to fit anywhere else in the "passenger compartment".

 

All good to know: fuse box locations are on opposite sides on the RHD vs LHD models. Thanks, guys.

 

Only reason I know where that fuse box is is because F43 lives there, which powers my active exhaust vacuum pump. I fitted a key fob-controlled relay to defeat F43, sort of giving me switchable active exhaust. Finding a ground nearby was surprisingly difficult.

 

As far as the ground wire goes I ended up snaking the it up towards the door, under the trim piece on the side of the dash, and grounding under a 14mm (I believe) bolt that sits in plain sight.