I don't think the owner's manual was revised. But my 6cyl base MT convertible seems to allow you to put the spoiler up and down at will. It's a weird button, and doesn't always feel intuitive.... but it seems that we are now able to easily move it up or down at any time.

 

not on my '16 V6S MT Coupe

 

My MY2016 (Coupe V6S AT) will allow you to raise the spoiler...but if you're travelling above 50mph and you switch the button off, it will only lower once you drop below 50mph.

At speeds below 50mph, you can raise and lower as you please.

It's a UK car in case that makes a difference to the software...

 

Yes, it does. US coupe spoilers cannot be manually raised while moving, and but US convertibles can be. It can be manually raised if the coupe is not in motion.

It makes no sense why it's OK elsewhere and not here. There is no government regulatory reason, just a an apparent weird decision by JLR.

 

+1. In the USofA it's ostensibly unsafe for motorists to pump their own petrol in Oregon and New Jersey, but appears to be safe enough in the other 48 states. Oh yes, and in Oregon and New Jersey, disabled won't be able to get help pumping petrol if self serve is allowed, yet in the other 48 states the disabled seem to be able to find the required help...at no extra charge....from the legally required attendant. Go figure!!! {Amazing the power of special interest groups and their lawyers/lobbyists.}

Desert Hiker

 

My dealer thinks that the coupe spoiler, when raised, extends slightly beyond the rear bumper, and thus runs afoul of US law. I guess it would have first impact if raised while the car was reversing. Since my coupe is still on order, I cannot confirm.

 

ha exactly... the gas thing kills me! My parents have a vacation home in Ocean City, NJ which I take my car to from PA. I make sure to fill up in PA before going over the bridge to NJ because I dont want anyone touching my car or dripping gas on it... I hate that I cant fill my own gas there.

 

So it sounds like the manual deployment of the spoiler on the coupe under 70 mph in the US doesn't work... Is there a fix coming? Seems to be an odd quirk for such an amazing vehicle. Anyone in the US with a 2016 coupe where the deploy button works under 70?

 

Any time I want to extend the rear spoiler, I just press the skinny pedal on the right.

 

The proper way to do it. It is a cosmetic pleasure anyway. The skinny pedal has many more benefits than the "downforce" provided by the small piece of metal on the back.

 

No, the '16 coupes can't be deployed either except for cleaning at a dead stop.

 

Simple explanation. The verts need extra downward thrust even at speeds below 60 mph. The coupes get additional downward thrust from the aerodynamic design of the top, except when driving on the left side of the road.

 

I'm not sure that's really the case, but assuming it is, it doesn't explain why the US verts can be manually raised and lowered at any speed up to 60 where they stay up, but the coupe cannot be manually deployed except when standing still.

 

Could it be a CAFE issue? I believe the coupes can raise their tails in the rest of the world.

 

I believe Buckingham may have been employing Irony. 😎

 

Not so fast! The aerodynamic roof line of the coupe creates lift. The panel that raises is there to spoil the laminar flow and disrupt the Bernouli effect (hence spoiler).

 

Instead of producing downforce, it reduces upforce, i.e. lift.

 

Thank you for saying it in English.

 

It's correct to view it either way. A surface that reduces lift ("upforce") is, in effect, producing "downforce."

Now, is your glass half-empty or half-full?

 

The optimist will declare the glass half full and the pessimist will declare it half empty, but the engineer will declare that you are using the wrong measuring methodology.