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As far as I know there is no hill assist on our cars. If you stop on a steep hill the car will roll backwards unlike my wife's Boxster where it applies the brakes when you stop on a hill.
That's correct.
My driveway is pretty steep and I've noticed that if I take my foot off the brake the car will hold for a second or less. This brief delay allows enough time to transition from the brake to the gas without the immediate rollback you'd get in a MT car. Wait any longer than a second and the car will roll backwards, unlike a car with hill assist.
I've not experienced what 24Chromium has described, although I also haven't had the car in SF on a really steep hill....
there is definitely hill assist (called drive off assistant), that lasts a few seconds only, on the GT3. Or maybe i'm misunderstanding and there is a different hill assist than this on other 911s??? BTW, is the driver's seatbelt buckled?
there is definitely hill assist (called drive off assistant), that lasts a few seconds only, on the GT3. Or maybe i'm misunderstanding and there is a different hill assist than this on other 911s??? BTW, is the driver's seatbelt buckled?
From the GT3 Owner's Manual:
There is a difference. On a hill in my Cayenne S, when the brake is released, the hill hold warning light comes on in the instrument cluster and the brakes hold the car for an extended period until the throttle is firmly pressed. You can then feel a slight lurch as the engine works against the brakes, the brakes finally release, and the car moves forward.
In my GT3 there is no warning light and the car will hold only very briefly on a hill. If you don't engage the throttle within a second or so after releasing the brakes, as I mentioned earlier, the car will begin to roll backward. Also, it feels different to me than in the Cayenne; more like the clutch is being slipped in the PDK gearbox rather than having the brakes being applied.
To me, the GT3 doesn't really have a "hill hold" feature since the car will begin rolling back within a very short time if you don't get on the gas....
That may not unreasonable since its harder to get an allocation for a new GT3 than to get a new GF, but before we go to extremes, how about you try this,
while at the stop on the hill, put in hand brake/or E-brake, when its a go, press on the gas, when you are sure there is gas, release the E-brake.
If you don't have a problem and it moves, then the hill decent is the issue.
If it still does not move, then its not hill decent and time to bring to the dealer.
Interesting... I've had my 2014 for almost 2 years now. I live in Texas and on top of hill. I have a couple of stop signs that are on a steep uphil SF style. I never saw t hold log come on. In fact the car rolls without break like a MT would do
If it has hill access it should just stop on a hill wo touching brake/gas than gas to go forward. Maybe try in automode. Maybe the manual mode deletes the hill assist mode. Mike
I think I got it, but just in case, tell me again. I was staring at your avatar.
So, sure enough, there we were, perched at the top of a very steep hill, right as it is about to crest, waiting for the light to turn. As it does, I press the accelerator harder and harder, barely moving, till suddenly we're doing a burnout. I'm worried this will destroy the clutches.
Anyone else encounter this situation?
Nope. Drive mine in SF a lot, and I lived on top of a 1000' elevation hill in Oakland, and nothing like that happened. Occasional wheelspin, yes, but it's a feature, not a bug, I think. Either the hill assist is getting weird or maybe something with PDK?
I do experience something similar in my Cayenne though, but that thing has gearbox set up for towing, so it spins the engine in place until the torque builds up.
03-20-2016, 06:42 PM
