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I tried searching through the forums and didn't notice anyone else mentioning these performance issues. Am I the only one experiencing them?



  • When accelerating aggressively from a stand still, there is a heavy "lurch" and thud at first. Is this possibly the regenerative braking releasing? If I allow the car to creep forward for a second and then accelerate, this does not happen.
  • When traveling at high speeds (90+ mph), the car feels exactly as if I'm driving in very heavy cross-wind conditions and I'm getting billowed back and forth, even though there's no wind worth mentioning. This happens with both comfort and dynamic suspension settings.

I already have a service appointment schedule for next Saturday for numerous, common software issues (units randomly changing to Celsius on the climate buttons, Forward Collision Warning settings not being saved, main driver screen getting stuck with a picture of the car, etc) and I'm curious if I should mention these problems, or if this is just how it's supposed to be.
 

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There is some driveline snatch on cars without a torque converter. Can't tell if yours is excessive. It has nothing to do with the regen. Turn CREEP ON if you want.
The only dancing I experience is with the LDW assist or Steering Assist active on poorly/double-marked roads. I normally drive with one hand at 3 with a very light touch. Car is very stable until the limiter shuts it down at ~127 mph. Poorly built roads are common here (California), and motorcycles, cars, and trucks of all kinds are unstable and ride like buckboards on many of our freeways, even brand new ones. It's refreshing to leave the state and enjoy the difference of what good workmanship is all about when it comes to paving.

The Celsius thing is still a bug, but the Car Silhouette / Black Screen can be resolved by waiting for the car to wake up. Best method? Set your departure time, or unlock your car via fob whether or not locked.
 

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I have the 'bump' when flooring it in dynamic mode; in fact I get it not just with flooring but with merely spirited push ... I haven't noticed it in comfort mode but I also don't usually floor it in comfort

Crosswinds above 90mph? Have not experienced it. Yes it could be steering assist. Make sure to select the rattling and deselect the countersteer in the dashboard menu.
 

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Well I just took a short drove down the nearest highway at 100 mph, and I can report that the steering assist was 100% the problem. It seems like there's no way to turn off the Lane Keep Assist feature completely, but I was able to set it to only be active during cruise control. The car was as stable as possible at 100 mph and it felt great. Thank you for the great insight!
 

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I have the 'bump' when flooring it in dynamic mode; in fact I get it not just with flooring but with merely spirited push ... I haven't noticed it in comfort mode but I also don't usually floor it in comfort

Crosswinds above 90mph? Have not experienced it. Yes it could be steering assist. Make sure to select the rattling and deselect the countersteer in the dashboard menu.

Mine is at the dealer for a variety of things, including the bump. Dealer states this isn't normal, and two other I-Paces on the lot don't have the bump. Has anyone on here had the issue diagnosed?
 

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I think that lurch and thud is normal under the conditions you describe. I have also experienced it. If you floor it hard and fast after moving your foot from the brake pedal to the accelerator, the brake hasn't finished releasing. It's the mechanical brake - nothing related to regen. I can't remember if I only experience it in dynamic mode, but suspect that might be the case.
 

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I think that lurch and thud is normal under the conditions you describe. I have also experienced it. If you floor it hard and fast after moving your foot from the brake pedal to the accelerator, the brake hasn't finished releasing. It's the mechanical brake - nothing related to regen. I can't remember if I only experience it in dynamic mode, but suspect that might be the case.
Agreed. The exact same behavior/feel in my ICE Volvo so I didn't think much of it.
 

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Well I just took a short drove down the nearest highway at 100 mph, and I can report that the steering assist was 100% the problem. It seems like there's no way to turn off the Lane Keep Assist feature completely, but I was able to set it to only be active during cruise control. The car was as stable as possible at 100 mph and it felt great. Thank you for the great insight!
At this point I think you are actually talking about Emergency Lane Keep, which is supposed to detect vehicles that are getting too close, or you moving to close to an object. You are right that there is no way to turn it off as a preference setting. You can turn it off for a trip but once the car is turned off, it will come back on.

LKA is a setting you can turn off or on and is best combined with the dynamic cruise control. The LKA is toggled on the steering wheel, lower right with the cruise control.
Emergency Lane Keep is set via the instrument panel wheel, under the Driver Assistance menu. I get too many false positives and would love to toggle this off and only use LKA, but no option.
 

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At this point I think you are actually talking about Emergency Lane Keep, which is supposed to detect vehicles that are getting too close, or you moving to close to an object. You are right that there is no way to turn it off as a preference setting. You can turn it off for a trip but once the car is turned off, it will come back on.

LKA is a setting you can turn off or on and is best combined with the dynamic cruise control. The LKA is toggled on the steering wheel, lower right with the cruise control.
Emergency Lane Keep is set via the instrument panel wheel, under the Driver Assistance menu. I get too many false positives and would love to toggle this off and only use LKA, but no option.
I don't think this is quite correct, either. There are four steering assist functions as I count them:

- Emergency Lane Keep detects when you are too close to the edge of the road and steers you back away from the edge. This system can be turned off but switches back on each time the vehicle is started.
- Lane Keep Assist detects if you are about to cross a road marking without signaling and can be set in the instrument panel menu to either vibrate the wheel or steer you back into your lane. This system works in conjunction with the Lane Departure Warning system which is the visual indicator in the instrument panel that you're crossing a lane line. Lane Departure Warning (And presumably Lane Keep Assist along with it) can be toggled on and off using the steering wheel button when adaptive cruise control is not active.
- Blind Spot Assist detects if you attempt to change lanes into a vehicle in your blind spot and steers you back into your lane. This system can be turned on or off in the instrument panel menu
- Steering Assist is an optional feature that attempts to keep the car centered in its lane when adaptive cruise control is enabled. This feature is toggled on or off via the steering wheel button when adaptive cruise control is active.
 
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