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Old 06-12-2008, 05:11 PM   #106
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Default Re: disabling hill-start assist....?

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Originally Posted by jermdeez View Post
Does it prevent from launching hard? maybe they are trying to keep people from beatin on the cars?
Only if your on a hill. But let me tell you about how cool you look when the guy next to you revs his engine at you, and you rev back... and then you stall in a spectacular fasion when you drop the hammer and the breaks are still on...


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Old 06-12-2008, 05:19 PM   #107
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Default Re: disabling hill-start assist....?

Does anyone have a wiring diagram for this vehicle. I am sure once you disable the sensor which senses you are on the incline, it will no longer kick in.

I personally hate the hill assist. I like scaring people behind me when i am sloped. I had a lady confront me in my 07 and ask why i was putting my car in reverse. I laughed and asked if she knew how and manual transmission worked.

Maybe this can be disabled from the ECU. The sensor must said some voltage to an intelligence source that holds locks the pads on the rotors. As soon as you engage the clutch, the brakes unlock.

I havent stalled yet but i hate it. Lets work together to bypass this.
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Old 06-12-2008, 05:24 PM   #108
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Default Re: disabling hill-start assist....?

i got the forester 09, non turbo version. and i've always wanted to learn a manual because I have always felt that I should know how in case of an emergency and for renting a car overseas when traveling. but no one would let me drive their cars (I now understand why, since i feel so bad for my car, even if I'm just leasing it).

so how about some concrete advice on hill starts without roll back (as a beginner, i'm terrified of rolling back). seems ironic that the hill assist is supposed to help a newbie like me, but seems to be a detriment.
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Old 06-12-2008, 05:33 PM   #109
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Default Re: disabling hill-start assist....?

The hill holder is crap. I stalled today because of it and really I have yet to find out where the hill was... Maybe a 2% incline max... geez.

Please, someone, find a way to disable it!
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Old 06-12-2008, 05:57 PM   #110
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Default Re: disabling hill-start assist....?

on hills u give it a little more gas and engage the clutch...you can use the e-brake...its all practice...stay within ure limit...i still stall every now and then...it happens...i have been driving stick shift since i was 16, and ill tell u one thing..its better to stall than burn ure clutch out...patience
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Old 06-12-2008, 07:16 PM   #111
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Default Re: disabling hill-start assist....?

I'm not sure if there is a learning feature to the HSA but it used to always be engaged on a light near my house but now it never engages there. It's so incredibly inconsistent.
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Old 06-13-2008, 05:26 AM   #112
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Default Re: disabling hill-start assist....?

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Originally Posted by julesrules07 View Post
i got the forester 09, non turbo version. and i've always wanted to learn a manual because I have always felt that I should know how in case of an emergency and for renting a car overseas when traveling. but no one would let me drive their cars (I now understand why, since i feel so bad for my car, even if I'm just leasing it).

so how about some concrete advice on hill starts without roll back (as a beginner, i'm terrified of rolling back). seems ironic that the hill assist is supposed to help a newbie like me, but seems to be a detriment.
use the handbrake. it disable the HSA
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Old 06-13-2008, 07:26 AM   #113
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Default Re: disabling hill-start assist....?

If anyone has the wiring diagram for the 08 send it my way, and i will see if there is a way to disable the sensor.
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Old 06-13-2008, 08:08 AM   #114
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Default Re: disabling hill-start assist....?

what about unplugging the clutch position sensor? i'm at work now so i can't go play.. i forget the sequence that activates the hold. brake then clutch in then off the brake?
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Old 06-13-2008, 08:13 AM   #115
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Default Re: disabling hill-start assist....?

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Originally Posted by bklynpanman View Post
what about unplugging the clutch position sensor? i'm at work now so i can't go play.. i forget the sequence that activates the hold. brake then clutch in then off the brake?
Guys, I know it's a pain in the backside but really if you use the handbrake like you would have been taught if you learned to drive in a car with a manual transmission you will not have a problem. If you dont want to use the hand brake properly then do what I do which is pull up to the first notch/click when I'm on a hill and don't want the HSA to engage.
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Old 06-13-2008, 10:17 AM   #116
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Default Re: disabling hill-start assist....?

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Originally Posted by jrdriller View Post
Guys, I know it's a pain in the backside but really if you use the handbrake like you would have been taught if you learned to drive in a car with a manual transmission you will not have a problem. If you dont want to use the hand brake properly then do what I do which is pull up to the first notch/click when I'm on a hill and don't want the HSA to engage.
I've never owned an automatic. Learned on a stick 20+ years ago. Never learned to use a handbrake for anything other than parking. That said, if it disables the HSA, I'm in. What an idiotic "feature".
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Old 06-13-2008, 10:37 AM   #117
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Default Re: disabling hill-start assist....?

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I've never owned an automatic. Learned on a stick 20+ years ago. Never learned to use a handbrake for anything other than parking. That said, if it disables the HSA, I'm in. What an idiotic "feature".
It does. the problem with HSA is its functionality is integrated into the VDC module so disabling it is not straight forward. It gets its inclination signal from the VDC yaw rate sensor. One thing I've not tried yet is to see if it is still working when VDC is turned off (push and hold vdc button for about 10sec). I'll do this when I leave work today as we've got a decent climb out of the parking area
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Old 06-13-2008, 10:45 AM   #118
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Default Re: disabling hill-start assist....?

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Originally Posted by jrdriller View Post
It does. the problem with HSA is its functionality is integrated into the VDC module so disabling it is not straight forward. It gets its inclination signal from the VDC yaw rate sensor. One thing I've not tried yet is to see if it is still working when VDC is turned off (push and hold vdc button for about 10sec). I'll do this when I leave work today as we've got a decent climb out of the parking area
I thought the hill-assist module contained a solenoid that simply maintained brake pressure. That would explain why not applying enough pressure on the brakes can sometimes cause hill-assist to not activate. If that is how the system works and disabling that solenoid doesn't affect the braking system as a whole, that's probably the route to go. I'm not sure hill-assist is tied into the ECU, there is probably a separate control module that accepts inputs from the various sensors. I've really got to download that service manual one of these days as the wiring diagrams should tell us a lot.
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Old 06-13-2008, 10:55 AM   #119
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Default Re: disabling hill-start assist....?

Im thinking along the same line as digitalfiend.

Its funny cause i read in the manual that the hill-assist should not engage when your on a decline. I have had it engage while parking on a decline numerous times.
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Old 06-13-2008, 11:04 AM   #120
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Default Re: disabling hill-start assist....?

If I knew how to insert the HSA diagram into this msg box I would (old guy not very computer savy). The Service manual is not that clear v/v how HSA works but it does have a timing diagram which shows a 1sec timer begining from brake light off


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