Speed reduction paddle

[Haidagwaiipilot]

My 2021 Kona EV (28,000K) has an issue with the left hand speed reduction paddle. When it was new the car would come to a complete stop when you pulled on the paddle and after a while we got used to the stopping distance. We use this exclusively when on the road and get a few extra kilometers from it as well as saving the brakes. However, the car started to continue to creep and not stop a few months ago, especially if we are on a down hill stop. I phoned my dealer yesterday and made an appointment to bring it in but had mentioned it before at a regular service and they said if it happens again to bring it in. Now it happens almost 100% of the time. Anyone have this issue or know anything about it?

 

[electriceddy]

My 2021 Kona EV (28,000K) has an issue with the left hand speed reduction paddle. When it was new the car would come to a complete stop when you pulled on the paddle and after a while we got used to the stopping distance. We use this exclusively when on the road and get a few extra kilometers from it as well as saving the brakes. However, the car started to continue to creep and not stop a few months ago, especially if we are on a down hill stop. I phoned my dealer yesterday and made an appointment to bring it in but had mentioned it before at a regular service and they said if it happens again to bring it in. Now it happens almost 100% of the time. Anyone have this issue or know anything about it?

It may involve the motor resolver and /or it's controller.
Further explanation here as to what that is (thanks to @KiwiME).
A post here mentions it can be re-calibrated using the analysis tool (GDS?) that the dealer repair depot will probably use to check and or re-calibrate.
Definitely a dealer repair issue, in the meantime, I would just use the footbrake.

 

[KiwiME]

The paddle operates a simple hardwired push button so it could faulty, or a resolver issue which I think would trigger an error.

... saving the brakes.

To add to what EE says, just using the brake pedal will save the brakes nearly as well because Hyundai/Kia use a regen-integrated system that maximises efficiency and minimises disk use.

 

[hobbit]

If I'm in Drive pointing up a hill after having stopped, the car seems to hold [using the hydraulic
brakes, not the motor -- I can hear them release to move again], without the "hold" switch
being on. It just happens if the car's accelerometer / pitch detection sees enough up-slope.
However, that state TIMES OUT after a while, and you start rolling backwards. The design idea
is clearly a generous time to move the foot between pedals, but if you get off both and just sit
there, that's not what it was intended for.

Normal operation in "hold" mode is too aggressive/insistent about it, I keep it off. On the flat
I usually go to Neutral near the end of the stop so I can feather off and avoid the suspension lurch.

_H*

 

[KiwiME]

OP seems to be having the issue going downhill, perhaps it's the same. I often use the left-paddle-hold on one steep downhill ending at a normally-red arrow to see if I can time it correctly. It can take 1-2 minutes to turn green so I don't often let it sit on the motor because there's no brake light on and I don't want to be rear-ended. But when I do, sometimes I have noticed a hardness when I press the accelerator and it lets go.

 

[Haidagwaiipilot]

It may involve the motor resolver and /or it's controller.
Further explanation here as to what that is (thanks to @KiwiME).
A post here mentions it can be re-calibrated using the analysis tool (GDS?) that the dealer repair depot will probably use to check and or re-calibrate.
Definitely a dealer repair issue, in the meantime, I would just use the footbrake.

UPDATE!
Just got the car back from the dealer, took them about 2 hours to check everything and come up with "Brake Paddles are not adjustable in GDS management."

 

[hobbit]

They aren't "brake paddles". They're regen adjusters, and should not be relied on to slow down smoothly
to match the conditions at hand.

_H*