My touring has 2 new oem front tires (per Nissan TSB) and they have about 8500 miles on them... and so far, the roaring and the uneven wear hasn't returned.

I have replaced the rear tires (oem re040) and have driven 500 highwaymiles so far. today, i took it to my favorite backroad to have a lil fun. i kept the vdc on as usual. the vdc kicked in, even on easy & moderate cornering... also EBD did its thing preventing me from driving aggressively. it was rediculous. so i turned it off and it was a little better after that but it still got in my way.

i am assuming the tread-depth difference is what's causing this.... gotta go burn some rubbers... haha. any other thoughts?

 

Not tread depth difference. I assume you got the same size tires on the rear that were on it before, huh? VDC is affected by the rotational speed of the wheels. It's setup to expect a certain ratio or stagger between the fronts and rears. If you change the OD of the tires (either front or rear), you can throw VDC off.

 

yes, i did replace the rear with the oem re040 in 245/45/18.

my car is pretty much stock. i cant think of anything else that would cause the vdc to go crazy on such light, easy turns...

 

One possibility is that you banged up one of the rotation sensors when changing the wheels out. That could be causing one to act flaky.

Maybe the new tires are slippier than the broken-in old tires. After they get scuffed up a little the grip will be better. (<< wild *** guess on that one)

 

If the tires are obviouly flat and underpressurized, that *could* throw your VDC off

 

So what stagger keeps the VDC happy? I can't keep the front tires stock and go with a wider rear tire?

 

I have the same problem. I replaced the OEM Fronts per the TSB and put Goodyear Eagles on the rear. The VDC kicks in for no reason when I go into a turn with any speed. Its unnerving. THe tire pressures are correct. I posted about this several months ago and didn't get a response. Someone suggested I may need new brake pads but I think the comment about bumping a sensor makes more sense.

 

hmm.. where is this rotation sensor located?

tire pressures are not an issue with me as i check mine weekly. i am religious when it comes to it. haha, my tire pressure guage was nearly 50 bucks... (from longacre), you autox'ers know what i am talking about. it glows in the dark too! bling!

 

Not sure how good this is going to come out....

 

specs say that the stagger from front to rear should be .5-.75 inch, with rear being the taller of course. as you can see even though its not a ton of room it does allow for some play so as said earlier, unless the tire is just dead flat, a few psi's here or there is not going to affect the vdc.

flatness of a tire that would affect the VDC would never have the chance to do so cause you wouldnt be able to even drive the car.

the problem has to be rooted in something that occurred while changing out the tires. dont know what though. sorry i cant help more.

 

Damn, I was thinking of going 275 in the rear and keping the fronts stock
This other guy in a G took his to the track like that and had no problems.

 

Has anyone else had this experience? What about the theory regarding low brake pads or low brake fluid?

I am skeptical about the sensor being bumped and the tire size/stagger remained the same.

Anyone?

 

i also had experience with the brake fluid low and with that the BRAKE red light came on and would stay on. in this situation that did not happen.

 

Are the tires mismatched now? (different brands front/rear?) If so, this is not a good idea for vehicle stability, and will very likely cause sensitive VDC activations.

VDC is constantly comparing an estimated or model yaw rate (calculated from steering wheel angle and vehicle speed) to the actual yaw rate (as measured by a yaw sensor in the vehicle). If you have mismatched tires, the lateral (cornering) force generated by the front tires will differ from the lateral force generated by the rear tires. As this will usually cause the vehicle to steer differently than what the VDC model says it should, you will get sensitive VDC activations.

 

I have the same problem with stock size, got new RE050 rear, but the inner edge of the fronts (RE040)are very used,but only a few mm; so while cornering at high speed the car is braking by itself pretty hard and repeatedly...!

I heard that I have to change the 4 tires at once, to be ok...What do you think?

 

Yes, Froggy, if the fronts are very used, you may get sensitivity.

Nissan should be made aware of this... Usually the system should be learning this delta during normal driving. I can't believe so many people are having these issues.

 

i have the same problem too.. the rear OEM tires were shot due to a nail problem, so, Wheelworks recommended 245/45s vs. the original 235/50s.. they r a little wider, but same OD with a little more traction.. the slip light comes on when i go at moderate speed on turns with uneven pavement.. so, i have been turning the TCS off whenever i get into the sharp turns... the guyz at Wheelworks told me that once the tires are little worn, the traction would match the front tires n the problem will go away.. hmm...

 

500 highway miles might not be enough to get rid of all the demolding agent on the tires.

Cold pavement and cold tires are sometimes slippery enough to set the VDC off. Applying to much gaz mid corner is an other simple explanation ?

Turn the thing OFF and get that nice rear end slidding a bit ! That's the whole point of a RWD car !

 

hey guys - i have had that same problem with vdc being too sensitive. my tire setup is totally differnt than oem though (F245/35/R19 & R275/30/R19) since i have 19" wheels.

my question is: is it Ok to just turn VDC or TCS off and drive the car for a long time, an hour or two for example? the manual says your supposed to have it on always unless the car is stuck in snow or something. I just want to be sure it will not cause any problems especially to my AT trans.

 

4everZ

your problem is you have the wrong sized rear tires (275/30) which are a different rolling circumference than stock. VDC would prefer 275/35 which is closer to stock.

as pointed out above, somewhere, someone posted that the diameter difference between front rear should be 0.5-0.75". still to this date i haven't been able to find the source of that info, just has been reposted. anyone on the source?

pp