intoit

I live in Chicago and have a unique incline ramp to exit the garage. The ramp has a straight incline and then a sharp left. It can be tricky to exit. Prior to my NX I had an Audi A4 which handles the incline with its AWD like a charm. What can happen as you go left up the incline is that you're actually lifting pressure off the rear left tire. In the NX this actually causes the traction control to completely go out of whack at one point in the ramp the accelerator becomes something that no longer works. I end up having to go down backwards and pivot the car back and forth to lesson the incline in that specific spot. Anybody have any tricks when going all terrain with this thing that might help?

Swacer

Is this during winter conditions?

If so, I would recommend locking the diff.

corradoMR2

+1 to what Swacer is saying.

Also, tires plays a HUGE role. I'm assuming you have the Michelin's which are not great in snow.

skabei

I agree with Corrado, tires would be a big help here.

Your A4 probably handled it better with its torque vectoring (not quite real torque vectoring but it helps) which unfortunately Lexus doesn't have yet.

intoit

It's in an indoor garage so really nothing to do with winter or ice.

skabei

Does this happen during the warmer seasons too?

intoit

A few clarifications:
1. This is in an indoor garage no ice or snow. I have the premium wheels.
2. My assumption is this is an electronics bug due to the traction control.
3. This is exactly what occurs. I go up a steep incline to exit an underground city parking garage and I have to turn the car sharp left. As I approach the left bend there is a slightly higher incline a sort of rounded incline to take into account the left corner. As the car hits that smaller incline the left rear tire starts to lift. My assumption is the computer thinks I have lost traction. The accelerator at this point in time becomes limp it will allow no acceleration and therefore I have no torque to get over the small incline.
4. I have tried disabling the traction control (button near the parking break).
5. I will also note that the park assist is turned on and I am getting two bars and beeps because of the proximity of the wall.

I live in the midwest but it makes me think this car would not survive a small Colorado elementary off road camping excursion.

Swacer

Yeah, ok, its a crappy underground garage. I had an ex girlfriend years back that lived at an apt with one of these.

Theres nothing you can do. Perhaps attempt to take the turn at a wider approach angle.

How you're relating a crappy parking garage...and camping...is beyond me.

skabei

There are a few video reviews that have put the NX through some rough driving and outdoor terrain and it's done very well.

I've also driven in snow and slush when I went snowboarding/skiing and the car felt very confident. Over the weekend we had a small storm with freezing rain at night and I didn't have trouble. Although, I also have brand new winter tires (XI2) which help.

intoit - is your NX FWD or AWD?

olgzr

My NX has a button to disconnect the rear axle and put all the drive on the front. Have you tried that? If you've transferred all the drive to the front, it should not matter what the rear tires do.

coolsaber

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coolsaber

I`m guessing you have a one off NX, as they dont have a button.

By Default, the NX, a FWD model, runs in 2wd Front axle only. Regardless of whether you buy an AWD or FWD model.

When is slip is detected, the AWD system in conjection with ABS, EBD, TC, ESP, etc acronyms combine to proportion torque to each non-slipping wheel, and lock up the slipping wheels.

TC is probs cutting power, so turn it off and attempt again (be cautious and use at your own peril) possibly with snow mode and manual mode shifting wise

olgzr

I'm trying to attach a picture of the switch and the display.

olgzr

I only was able to attach one picture on the first post so the second picture is here, (hopefully). The car operates in FWD until slip is detected then the computer will bring in the rear wheels as needed. Activating this switch cuts out the rear wheels and allows FWD only. If the OP has this switch, it may help in his situation.

jim256

That switch does pretty much the opposite of what you suggest. It locks the center diff.
From the manual:

All Wheel Drive Lock Switch
Press the switch.
The torque of the engine is distributed to
the rear wheels to the maximum extent
possible in accordance with driving conditions.
Pressing the switch again cancels
all-wheel drive lock mode and returns
the Dynamic Torque Control AWD system
to normal mode. (P. 298)