ESC not 100% off?
#1
Senior Member
Thread Starter
iTrader: (2)
Join Date: 06-23-09
Location: Chesterfield Missouri
Posts: 3,820
Likes: 0
Received 0 Likes
on
0 Posts
ESC not 100% off? (Now with video)
Well me and a few friends decided to go backroading lastnight. Well I turned off traction and esc. But coming out of several hard turns the car would cut power while I was floored.
This isnt the first time this has happened either. I live off an extremely busy road so often you got to give it some gas to get out my neighborhood. And often if I cut the wheel the slightest amount with the esc on or off it will cut power (cant tell you how many times ive almost been hit!)
So what gives can the esc not be fully turned off? Anyone else have this issue? Its something id rather not ask gm as I can only imagine the answer id get
This isnt the first time this has happened either. I live off an extremely busy road so often you got to give it some gas to get out my neighborhood. And often if I cut the wheel the slightest amount with the esc on or off it will cut power (cant tell you how many times ive almost been hit!)
So what gives can the esc not be fully turned off? Anyone else have this issue? Its something id rather not ask gm as I can only imagine the answer id get
Last edited by CordiaDOHC; 01-23-2010 at 02:39 AM.
#5
Senior Member
Push it once it will say Traction off, then push it and hold it 8 seconds and it will then say ESC off. No traction no esc = fun. And I tested it at 3am 2 days ago on my snowy street....its fun, but my Blizzaks straightened me out lol.
#6
Senior Member
Thread Starter
iTrader: (2)
Join Date: 06-23-09
Location: Chesterfield Missouri
Posts: 3,820
Likes: 0
Received 0 Likes
on
0 Posts
Guys im doing that. Its still cutting power like the esc is stepping in. Its like if you turn the wheel and it starts to lose traction it will cut power instead of letting it spin. If you turn both off and floor it then it will just keep spinning. But any direction change or anything and it decides game over.
#7
Senior Member
Join Date: 05-07-07
Location: Rochester, NY
Posts: 1,847
Likes: 0
Received 0 Likes
on
0 Posts
Guys im doing that. Its still cutting power like the esc is stepping in. Its like if you turn the wheel and it starts to lose traction it will cut power instead of letting it spin. If you turn both off and floor it then it will just keep spinning. But any direction change or anything and it decides game over.
#8
Senior Member
Thread Starter
iTrader: (2)
Join Date: 06-23-09
Location: Chesterfield Missouri
Posts: 3,820
Likes: 0
Received 0 Likes
on
0 Posts
my 2.2 auto with Traction Control had the same problem, putting it into L would show the "T/C OFF" light and it generally would be off, but if 1 tire spun it would cut ALL power and I would continue sliding, I'd check my posts but there was no way to disable it that we could figure out..
#9
Senior Member
Join Date: 05-07-07
Location: Rochester, NY
Posts: 1,847
Likes: 0
Received 0 Likes
on
0 Posts
https://www.cobaltss.net/forums/problems-service-maintenance-69/traction-issues-153404/
and if you scroll down to:
"has nothing to do with braking or being aware of surroundings fyi. one tire (or multiple) slip, throttle cuts nearly 100%, you keep sliding until you hit something or dry pavement "
It seems like TC can be turned off, but ESC cannot.. perhaps there is a way, maybe a fuse? idk.. but we never solved the issue so good luck. My 09 LS does not have TC or ESC so I don't have the issue but my 07 LT does, and it still does that..
#13
Senior Member
Thread Starter
iTrader: (2)
Join Date: 06-23-09
Location: Chesterfield Missouri
Posts: 3,820
Likes: 0
Received 0 Likes
on
0 Posts
I dont really need it off but it is annoying the hell out of me.
#16
Senior Member
Sounds like the torque-based engine management is coming into play and not ESC. To limit torque as to not overpower the tires when exiting a turn in lower gears the Bosch controller will look at the steering wheel angle and limit boost. I'm not sure if that's something HP Tuners can currently modify or disable.
#17
Senior Member
Thread Starter
iTrader: (2)
Join Date: 06-23-09
Location: Chesterfield Missouri
Posts: 3,820
Likes: 0
Received 0 Likes
on
0 Posts
Sounds like the torque-based engine management is coming into play and not ESC. To limit torque as to not overpower the tires when exiting a turn in lower gears the Bosch controller will look at the steering wheel angle and limit boost. I'm not sure if that's something HP Tuners can currently modify or disable.
#18
Banned
iTrader: (2)
It turns off completely for me i tested it many times including in the snow. I tried to purposely slide the car with ESC on, and it wouldn't let it. Took it off and weeee sliding I go.
or just unplug the sensor on the wheels but you loose abs doing that too.
or just unplug the sensor on the wheels but you loose abs doing that too.
Last edited by slobalt08; 12-19-2009 at 03:47 PM. Reason: Automerged Doublepost
#19
Senior Member
Join Date: 05-07-07
Location: Rochester, NY
Posts: 1,847
Likes: 0
Received 0 Likes
on
0 Posts
When I first discovered the issue, no one else knew what I was talking about. The dealer CLAIMS its fine but maybe it's not supposed to be that way..
#20
New Member
Join Date: 08-14-09
Location: San Jose, CA
Posts: 45
Likes: 0
Received 0 Likes
on
0 Posts
Hey guys,
i have the exact issues with my tc/esc, i drive over the santa cruz mountains everyday to go to work and have almost been rear ended dozens of times because the esc kicks in and cuts all the power. it seems to be unpredictable and very annoying. i have taken it to the dealer a few times and was told that it is acting as normal. i then pressed the issue on the notion of safety and had a GM regional engineer come and take alook at it. he refused to drive the car or inspect it. told the service manger that it was working as designed. 'case closed' according to them. so i am going to corporate, hoping to get a better response. driving like a mad man and exceeding the limits of the car is one thing, but driving the flow of traffic and almost getting an accident because your car cuts out is a safety issue. i will keep you guys posted on the responses i get.
i have the exact issues with my tc/esc, i drive over the santa cruz mountains everyday to go to work and have almost been rear ended dozens of times because the esc kicks in and cuts all the power. it seems to be unpredictable and very annoying. i have taken it to the dealer a few times and was told that it is acting as normal. i then pressed the issue on the notion of safety and had a GM regional engineer come and take alook at it. he refused to drive the car or inspect it. told the service manger that it was working as designed. 'case closed' according to them. so i am going to corporate, hoping to get a better response. driving like a mad man and exceeding the limits of the car is one thing, but driving the flow of traffic and almost getting an accident because your car cuts out is a safety issue. i will keep you guys posted on the responses i get.
#21
Senior Member
Join Date: 05-07-07
Location: Rochester, NY
Posts: 1,847
Likes: 0
Received 0 Likes
on
0 Posts
Hey guys,
i have the exact issues with my tc/esc, i drive over the santa cruz mountains everyday to go to work and have almost been rear ended dozens of times because the esc kicks in and cuts all the power. it seems to be unpredictable and very annoying. i have taken it to the dealer a few times and was told that it is acting as normal. i then pressed the issue on the notion of safety and had a GM regional engineer come and take alook at it. he refused to drive the car or inspect it. told the service manger that it was working as designed. 'case closed' according to them. so i am going to corporate, hoping to get a better response. driving like a mad man and exceeding the limits of the car is one thing, but driving the flow of traffic and almost getting an accident because your car cuts out is a safety issue. i will keep you guys posted on the responses i get.
i have the exact issues with my tc/esc, i drive over the santa cruz mountains everyday to go to work and have almost been rear ended dozens of times because the esc kicks in and cuts all the power. it seems to be unpredictable and very annoying. i have taken it to the dealer a few times and was told that it is acting as normal. i then pressed the issue on the notion of safety and had a GM regional engineer come and take alook at it. he refused to drive the car or inspect it. told the service manger that it was working as designed. 'case closed' according to them. so i am going to corporate, hoping to get a better response. driving like a mad man and exceeding the limits of the car is one thing, but driving the flow of traffic and almost getting an accident because your car cuts out is a safety issue. i will keep you guys posted on the responses i get.
#22
Senior Member
Hey guys,
i have the exact issues with my tc/esc, i drive over the santa cruz mountains everyday to go to work and have almost been rear ended dozens of times because the esc kicks in and cuts all the power. it seems to be unpredictable and very annoying. i have taken it to the dealer a few times and was told that it is acting as normal. i then pressed the issue on the notion of safety and had a GM regional engineer come and take alook at it. he refused to drive the car or inspect it. told the service manger that it was working as designed. 'case closed' according to them. so i am going to corporate, hoping to get a better response. driving like a mad man and exceeding the limits of the car is one thing, but driving the flow of traffic and almost getting an accident because your car cuts out is a safety issue. i will keep you guys posted on the responses i get.
i have the exact issues with my tc/esc, i drive over the santa cruz mountains everyday to go to work and have almost been rear ended dozens of times because the esc kicks in and cuts all the power. it seems to be unpredictable and very annoying. i have taken it to the dealer a few times and was told that it is acting as normal. i then pressed the issue on the notion of safety and had a GM regional engineer come and take alook at it. he refused to drive the car or inspect it. told the service manger that it was working as designed. 'case closed' according to them. so i am going to corporate, hoping to get a better response. driving like a mad man and exceeding the limits of the car is one thing, but driving the flow of traffic and almost getting an accident because your car cuts out is a safety issue. i will keep you guys posted on the responses i get.
#23
Senior Member
Thread Starter
iTrader: (2)
Join Date: 06-23-09
Location: Chesterfield Missouri
Posts: 3,820
Likes: 0
Received 0 Likes
on
0 Posts
You'd also lose the electronic brake force distribution too which could potentially make the car more tail happy and the rear end want to step out in a threshold braking panic stop.
Might be good to mount a camera in the car to catch what it is doing. More than likely the regional rep probably just thinks you're pushing the car too hard on public roads. Maybe there is a chance you are but you don't realize it, then again maybe there is a problem with the lateral accelerometer, yaw rate, or steering angle sensor. At least having some video to show when and under what conditions it is occurring might help your case.
Might be good to mount a camera in the car to catch what it is doing. More than likely the regional rep probably just thinks you're pushing the car too hard on public roads. Maybe there is a chance you are but you don't realize it, then again maybe there is a problem with the lateral accelerometer, yaw rate, or steering angle sensor. At least having some video to show when and under what conditions it is occurring might help your case.
#24
#25
Senior Member
Thread Starter
iTrader: (2)
Join Date: 06-23-09
Location: Chesterfield Missouri
Posts: 3,820
Likes: 0
Received 0 Likes
on
0 Posts
No. with TC and ESC switched off you can be more aggressive but any turning of the steering wheel seems to cut power especially if theres any wheel spin. If the wheel(s) start to spin and the steering wheel is turned even slightly then it seems to cut power down to almost what id describe as 10% and its left me in a bad spot many times as I was planning on using full power to get out of the situation.