goixiz
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Location: ATL, GA

Park button (safety concern)

Thu Jul 24, 2014 8:42 pm

Rewording as a question. If I am driving along at 35 mph and if I decide to go from D to B mode and accidentally press the P will the car lock up and try to stop?


The park button is too easy to access and for some models the button is right there when switching from drive to brake mode and potential of accidentally pressing the Park button is high if it results to an emergency brake.

I suggest they do a simple software or hardware modification to reduce the ease of getting to the P button.
1. Maybe they can include a requirement to hold the button for a brief moment (2seconds) before P is activated.
2. Maybe have a confirmation sequence. Like pressing it 2 times
3. Maybe P cannot be activated if the wheel is more than x mph

P.s. Maybe it's already in place but I don't want to find out if it's not.
Last edited by goixiz on Fri Jul 25, 2014 3:16 am, edited 1 time in total.
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gbarry42
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Re: Park button (safety hazard)

Thu Jul 24, 2014 9:13 pm

How about having it beep and go into Neutral if the car's moving faster than a crawl? Because that's what it does! You gotta figure if a disaster were possible, it would have already happened sometime in the last 3 years.

That's the great thing about this forum. You can ask, instead of worrying about it.
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derkraut
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Re: Park button (safety hazard)

Thu Jul 24, 2014 9:37 pm

I suggest you edit your post title to remove the "safety hazard". It is no such thing. :roll: You can switch from "D" or ECO at any speed, and it is not a safety hazard.
Derkraut
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MikeD
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Re: Park button (safety concern)

Fri Jul 25, 2014 7:06 am

Well, just to explore this just a little more: What is the approximate maximum speed that "Park" will take affect, and just how jarring is that braking? And what is the maximum incline that one should trust to Park alone without using the "emergency brake"?

bbrowncods
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Re: Park button (safety concern)

Fri Jul 25, 2014 8:19 am

I have inadvertantly hit P just as I was coming to a stop, but still a slight movement forward. The P engage with a CLANK which did not sound good and I really did not like. I now am sure I have stopped before pushing P.
2014 Cayenne Red Leaf SL purchased 6/9/2014 (dealer received it on 6/7/2014), manufacture date 4/2014.
7/4/14 -629 miles, Temp 83, SOC 97.5, 59.81 Ahr, SOH 91%, Hx 91.44, 20.2 Kwh, Avg 4.127, High 4.136, Low 4.122, GIDS 267/92.5%.

mctom987
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Re: Park button (safety concern)

Fri Jul 25, 2014 8:20 am

MikeD wrote:Well, just to explore this just a little more: What is the approximate maximum speed that "Park" will take affect, and just how jarring is that braking? And what is the maximum incline that one should trust to Park alone without using the "emergency brake"?
I've tried it at 2MPH, it's quite rocking, and continues back and forth for quite awhile.
0° is the maximum slope you should park without using the brake, in any car. More so true with the Leaf, having no compressive engine braking.

The "Park" is a pin, not a brake. It will not be able to stop you at more than a couple MPH. Any faster, and you will cause serious damage.
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Re: Park button (safety concern)

Fri Jul 25, 2014 8:37 am

hard to figure as an actual problem.
has it happened to anyone?
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goixiz
Posts: 118
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Re: Park button (safety concern)

Fri Jul 25, 2014 11:30 am

The park button definitely works and jars the car when depressed at low speed and I asked the question to a Nissan mechanic who has a leaf and he says he has tried it at normal driving speed and the P will not engage (his comment). And I ask what speed will the P work or engages he does not know......

So if someone has done a test or tried it pls post
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2k1Toaster
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Re: Park button (safety concern)

Fri Jul 25, 2014 12:26 pm

On the Prius it is pretty much the exact same, the Park button engages between 0mph and 7mph. This is in reverse and forward. At 8mph and above it beeps and puts you in neutral. It is actually the fastest way to engage neutral, just like in the Leaf. Same as if you try to engage reverse while going 50mph. It will beep and go to neutral.

I find this LESS dangerous than a mechanical drive box where it will happily allow you to engage any gear at any speed with fatal consequences to the drivetrain and vehicle stability.
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Nubo
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Re: Park button (safety concern)

Fri Jul 25, 2014 12:40 pm

MikeD wrote:Well, just to explore this just a little more: What is the approximate maximum speed that "Park" will take affect, and just how jarring is that braking? And what is the maximum incline that one should trust to Park alone without using the "emergency brake"?
It's not an "emergency brake", it's a parking brake. You should use it when parking, always. That way it's a habit and no risk of a bad decision. Also it can help protect the gearbox if another car bumps into yours while parked -- the brake can absorb the force instead of having it break the parking pawl or cog.
I noticed you're still working with polymers.

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