mikeyc6

I've seen a few quotes where people say "you have to press the TCS button twice to turn off traction control". Doesn't look that way on mine. Press it once and it says "Traction System Off" and the little "slippery when wet" icon lights up on the instrument cluster. Press it again and it says "competitive mode" and the SWW icon on the instrument cluster does *not* come on. Which way are you guys running yours if you don't want any "computer interference" in your straight line acceleration/shifting?

Mike

Lee6

one press takes TC off.....

vetracer

pressing it once turns Traction Control off, pressing it twice turns traction control and Active Handling off (that's when you see "Competition Mode" on the DIC)

s420merc

From what i read for complete deactivation you have to hold the button down for 5sec or more.
Maybee i am wrong on this.

Vette_DD

Page 4-10 of my manual says (talking about Traction Control System), "To turn the system off, press the button on the console."

The manual also says (talking about ACTIVE HANDLING), "To turn the system off, press the ACTIVE HANDLING button on the console for five seconds."

A few paragraphs later, it says (talking about Competitive Driving Mode), "The driver can select this optional handling mode by pressing the ACTIVE HANDLING button on the console two times within a five second time period." Two sentences later it says, "Competitive Driving Mode allows the driver to have full control of the rear wheels while the Active Handling System helps steer the vehicle by selective brake application". 2 more sentences later, it says, "The Traction Control System will not be operating."

See page 4-11.

vetracer

Very interesting. I'll have to go back and read that section again. That explains some of the weird things my car was doing on the track Saturday in Competition Mode, I thought there was something wrong with the posi unit.

So then, how do you turn both TC and AH off?

Vette_DD

On that same page (4-11, left side of page), the manual says, "If you turn the Active Handling System off, the Traction Control System will also be turned off."

Two sentences later, it says, "To turn the system off, press the ACTIVE HANDLING button on the console for five seconds."

It also says that the DIC will display the appropriate message when you push the button.

mikeyc6

Based on the replies here, it still doesn't make sense. Press once, and TCS is turned off... but AH is still on. Press a second time, and all it does is turn the "slippery when wet" light off on the dash because you still have TCS off and AH on. Press and hold for 5 seconds, now I have what I want: all off. So:

- Press once = TSC off, AH on, dash light on
- Press second time = TCS off, AH on, dash light off
- Press and hold 5 seconds = TCS off, AH off

Why even distinguish between 1 or 2 presses, if all it does is turn the dash light off?

Mike

Tenderfoot

When you press the button twice within 5 seconds to get into Competition Mode, traction control is off and active handling remains on. This is what you want for straight line acceleration (e.g. running the quarter mile). Turning off traction control will prevent you from bogging down your engine as you stomp the gas. Keeping active handling on will save your azz from hitting the wall .

mikeyc6

I don't disagree with that, but why have two settings that appear to be identical except for the dash light? I'm trying to understand exactly what the three settings do (one press, two presses, hold for 5 sec). One press and two presses appear to do exactly the same thing: turn off TCS and leave AH on. If you have three settings, they should do three different things. So far, we've identified three settings (one press, two presses, hold for 5 sec) but only two settings (TCS off with AH on, TCS off with AH also off). Still doesn't make sense.

I could also argue that I don't want my brakes being applied while doing a 1/4 mile run. A good driver can control the tail being a little fishy without using the brakes.

Mike

fdxpilot

The way I understand it, after reading numerous threads and manual excerpts, There are three settings.

1 press - TC off, full AH on
2 presses in 5 sec - Competitive Mode, TC off, AH on, but with greater tolerances for sliding sideways (what you want on a road course)
1 press for longer than 5 sec - TC and AH off.

Hope this helps.

JockItch

Yep, I think you explained it well

physans

So you can get more sideways in competition mode, than in traction off mode? Is that correct?

Strange there would be a warning light for 'traction off' mode, and no warning light for 'competition mode', assuming the latter allows you to get in much more trouble!

65GGvert

It says competition mode on the DIC

physans

sure, until you look at anything else. the yellow light stays on for the other mode. i've been driving around in competition mode, thinking it was safer than traction off mode! (wouldnt allow me to get as sideways)

lebvette

1 punch controls your fish-tailing more, which unless your road racing....that's the one you want.
Larry

N8sFavToy

2 presses is not the same as 1. AH is still on, but in a limited form with the 2nd press. Let's you be more aggressive around corners, but still protects you from going all the way around.

tomZ51

1 press - TC off, full AH on
2 presses in 5 sec - Competitive Mode, TC off, AH on, but with greater tolerances for sliding sideways (what you want on a road course)
1 press for longer than 5 sec - TC and AH off.

Hope this helps. [/QUOTE]



The competetion mode removes the active handling to a point. There is about a 25 degree angle before it kicks in and straightens you out. To remove both, its the 5 second hold on the button. This is where I like to run the track.

E-racer

The competetion mode removes the active handling to a point. There is about a 25 degree angle before it kicks in and straightens you out. To remove both, its the 5 second hold on the button. This is where I like to run the track.[/QUOTE]





****Warning - in competition mode, I power shifted 1 -> 2 about 5500 rpm and my 2007 C6 swerved violently. Anyone had this experience? Is it a design issue? It is a dangerous situation.

talon90

The system has four modes.

Mode 1 is the default when you turn the car on. Full traction control and full active handling.

Mode 2 is one press of the button which is traction control off Active Handling on.

Mode 3 is two presses in five seconds. This is traction control off and active handling in competitive driving mode which will give you greater tolerances for sliding sideways (what you want on a road course)

Mode 4 is to press and hold for greater than five seconds. This will be traction control and active handling off. No intervention from either system.

Traction control is just that. It senses rear wheel spin (loss of traction) and will take appropriate action to reduce said wheel spin. It will pull timing to limit wheel spin. It monitors the ABS sensors and the wheel speed sensors along with RPM.

Active handling takes input from several sensors in the vehicle. It pays attention to wheel spin, rpm, throttle input, brake input and yaw (departure angle of the nose of the vehicle from straight.) The car will take what it believes to be appropriate actions including applying individual brakes and reducing throttle input. The F55 in addition will vary individual shock damping to allow the car to plant an individual wheel to regain better control if it senses the car being loaded in a given direction.

Competition mode is a modified setup for more allowance of rear wheel spin and slip. This is more of what you would want if you were driving your car in a high performance driving event on a road course. It gives you a little more latitude to push your car to the limits while still allowing some safety.

Your manual has some good information in terms of defining the various systems.

Active Handling System
The Active Handling System is a computer controlled
system that helps the driver maintain directional control
of the vehicle in difficult driving conditions. This is
accomplished by selectively applying any one of the
vehicle’s brakes.

Traction Control System (TCS)
Your vehicle has a traction control system called TCS
that limits wheel spin. This is especially useful in slippery
road conditions. The system operates only if it senses
that the rear wheels are spinning too much or are
beginning to lose traction. When this happens, the
system works the rear brakes and reduces engine power
(by closing the throttle and managing engine spark) to
limit wheel spin.

Competitive Driving Mode
The driver can select this optional handling mode by
pressing the ACTIVE HANDLING button on the console
two times within a five second time period.
COMPETITIVE DRIVING MODE will be displayed in the
DIC. Competitive Driving Mode allows the driver to have
full control of the rear wheels while the Active Handling
System helps maintain directional control of the vehicle
by selective brake application. This involves less
intervention than with both the Active Handling System
and Traction Control Systems on. The instrument cluster
light will not be on. The Traction Control System will not
be operating. Adjust your driving accordingly.