VDC off and wheel slip lights on dash....
 

What does this mean? I understand that it implies a failure of the VDC system and that VDC is no longer active but what causes it? I have had this light come on a couple of times after normal acceleration from an on-ramp and it goes away after the next restart... any ideas?

- note that my stock rears are down to 10% tread and I probably did have some wheel slip but nothing that would have been noticeable or excessive with VDC on....

No, the VDC was on and should have handled the situation normally without bringing both lights up on the dash.... and then it disabled VDC until I could restart the car.

With the VDC on, I see the wheel slip light ALL the time, especially making right hand turns.

I have noticed this as well, seemingly in colder (not freezing, just cooler) weather that the solid VDC light comes on at random and stays on. It is not a result of any traction issues, it just turns on and remains on until the car is shut off and restarted. Been meaning to RTFM and see if there is any info.

Read the VDC warning section 5 in the manual, it appears to be a fairly touchy system that could be affected by several factors causing the indicator to illuminate including rough or banked road surfaces and then things like pads, rotors, suspension, tire, wheels and engine mods that aren't to spec. None of these apply to my car but I can predict the dealer won't bother with it unless the light stays on all the time at every startup.

Ya, I read the manual too but it didn't give any concrete reasons for the light combo to come on...

My brake fluid level is low, now both of my lights are on

yeah. check the brake fluid. if the fluid falls behind the sensor then both lights come on as a warning and also VDC and probably ABS are inactivated.

ABS is fine, no light. As for the brake fluid, I will check that but I doubt that is an issue. I changed the lines and fluid and checked for fluid leaks this spring. But still a possibility. Thnx.

:iagree:

It goes off ALL the time. Left hand turns as well. If the car lands too hard in a straight line is another odd situation when the light flashes.

I assumed the flashing is signaling that it would be shutting down power if I had not turned off VDC.

It used to startle me, now it just bugs me.

Yes, I have seen the slip light come on and flash on occasions too, BUT... this is when the VDC is on, and BOTH the VDC off light and the slip light come on solid and remain on until the vehicle is restarted. The manual indicates a VDC error of some sort. I thought it might be a bad sensor or something. dunno

Hi, i have the exact same problem with the VDC off and wheel slip lights on dash.
Every time i shut down and restart the car, all come back normal, but as soon as i drove and do some accelerations both light come back again....
i don't know what is that...

i also have the parking brake light that come on and go back every time i accelerate.

i have all this in my iPhone video, just tell me how to put it on line and you will see....

very strange

I just started having this issue including the brake light about three weeks ago. Subed for info.

...what have I started :icon14:

mike, your pads are wearing out, sucking down the fluid. when you replace the pads and reservoir goes back up. it will go away. do not just fill it now as you will overflow when new pads are put in

How to put the video??

Do you think it is the rear brake pads causing this? I can't see how my rears are worn down that much, but I will check them. They were fine this spring....

If the pads are fine but the fluid is low, should I just top up a bit?

i doubt it as i think the 370 eats front pads quicker. . how many miles do you have on your car. i am suspecting brake fluid because mike said he got the random parking brake light, which is another hint that your fluids are getting low. when the brake fluid is low, vdc and slip light will both light up.

you can fill the fluid, but you have to worry about fluid popping out when you change pads later. maybe add a little more.

I only have 17,000 km's on the car, and I just replaced brake lines and fluid this spring. I may have underfilled so I will check that first. Thanks!

Does the light (wheel spin light) stay on?

ok cossie1600, maybe you are right for the pads, because i did 4 complete days of tracking with them.
I just came back from another track a few hours ago, and i have to admit that when i brake i can ear an strident noise coming from my pads, espacially when i got home:-).

The thing is that more i was running on track more often the parking brake light were coming, so maybe you are right...

i will see...

still searching how to share video:-)

Yes, after several random parking brake light, the lights (wheel spin light and VDC) stay on until i restart the car

and yes, mine is the same except no parking brake light issues (yet)

There we go, i do speak to my self ( In French):-), was to show you the facts about this strange thing.

There is the youtube link for the video:

720p.mov - YouTube

That is abnormal and you should take it to the dealer. The Brake warning light should not be coming on at all in those conditions.

In case I missed it. If the VDC light comes on when you have turned it off, the VDC is not off 100%. I believe it shuts it off to about 90% leaving 10% still active. But this usually happens when the car is pushed hard.

You might want to check your brake reserviour, probably close to my level.

http://img441.imageshack.us/img441/8047/imag0001xt.jpg

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<iframe width="425" height="349" src="http://www.youtube.com/embed/L_Rtg08qaAI?hl=en&fs=1" frameborder="0" allowfullscreen></iframe>

My brake reserviour is exactelly between Maximum and minimum, i Will Try to fill it at the Max, but i don't think it's that

don't overfill it as the next time you change pads you will have a huge mess.

congrats Cossie1600, brake fluid added then test and all good.
i will remove some fluid the day where i am going to change the pads.

once again thanks for help.

and what about you wheee! ???

I wouldn't have known until I put my old pads back on and my lights came on too....

will check the car today! I don't drive her every day....

Yup..this is correct. Had the lights come on in my G35c a while back ago. The pads were low and brakes were bad. Did a break job and problem fixed.

Awesome help and support to everyone! Thanks to AK for this great forum!!

Long, irrelevant, story leading up to this, but at one point I intentionally adjusted my parking brakes (the adjustment you make through the peep-holes on the rear brake discs) all the way to the "loose" setting and drove around like that for a few days. It caused exactly what you were describing: during hard accel, the parking brake light would randomly light up at times. I think when it's too loose, under hard accel (or perhaps during the snap of upshifts under hard accel?), the very loose brake gets bumped or moved somehow and manages to grab something in a way that triggers the light on the dash.

With the adjustment all the way loose like that, I also really couldn't engage the brake normally at all. You could yank the parking brake lever all the way up with virtually no force at all, and the car would still roll. I imagine if your brakes were that far out of whack, you'd notice (unless you never use the parking brake lever?). In any case, check parking brake adjustment at the rear wheels and in the center console.

topped the fluid up a little and the lights have not reappeared after a night of regular driving with snow tires on. It is 0 degrees celcius here tonight.... yay Canada...!

:xmastup:

That's a good news, very cool.
Switzerland will become that cold soon:-)..
Time to go sleep for my Z...

I had the exact same issue with both VDC and skid lights constantly lit, I got my car oil sprayed today and odly enouoh the issue went away.

I had a similar kind of issue after i did my 4.08/VLSD swap. In the morning (only below 70 degress F) my ABS and skid light will come on (VDC on). Im usually on the highway when it comes on, so when i exit and get to a stoplight and restart they go away. My diff cover is cracked, and i will be replacing it soon but i havent tried adding brake fluid.