[SusieQ]

If you don't know how/when to use the smart control and don't understand its limitations, is someone forcing you to use it? If the distance is set at the closest distance, that distance won't be "very generous." Good luck with that Lemon Law...

I realize that by posting on the forum I open myself up to personally directed comments but know this is a safety issue with the 2021 Santa Fe that is not consistent with the other Hyundai vehicles and I was asked by my dealership to make this post to prompt a recall or software update.

 

[SusieQ]

Not a safety issue, a GREAT feature, just set the distance shorter and problem goes away. Your car is simply preventing you from tailgating. I had it on my 2015 Genesis and learned how to best set distance. Only gripe i had was using it in stop-and-go traffic. The Genny usually was slow to react and cars cut in front. Haven't had my 2021 Calligraphy in stop-and -go. I do use lane keep, lane centering and cruise nearly any time I am on a road where speeds are 55 or more. The 2021 works MUCH better than the 2015 Genesis. FYI, both systems pick up on trailer hitches on pickup trucks.

I do have it set the shortest distance and other cars cut in front of me which causes my vehicle to drop over 20mph. I have no control other than shutting smart cruise off for my safety. There has to be a better option like on the other vehicles. Maybe smart cruise is why the passing lane is for Camping out these days

 

[SusieQ]

I have a 2019 Ultimate and had the same situation arise a couple of times just last week on a long trip. I agree the sudden slow down when someone (inconsiderate, jerk driver) squeezes in front of you is dangerous. However you are the driver & you are in control. Cruise Control regardless of type is not a set & forget function, you are still the driver. If you were not on Cruise Control and someone did that to you, you would probably also brake to give yourself more room from that A**hole driver. If you do not like the quick slow down caused by the cruise control, you can always put your foot on the accelerator, thus overriding the cruise control and stay close to that driver in front of you. You can also put your foot on the accelerator to close the distance before someone does that to you, the car will allow you to do that, again you are in control and cruise control is still active but you are overriding it. You would then slow down at a more gradual pace that you are comfortable with, however would be in a tailgate situation with the car in front for a longer period of time.

All of that said, I am not sure why Hyundai did not allow the owner to disable the Adaptive function in your model, disabling it is allowed on my 2019 Ultimate.

That is the question since this is the first year it cannot be disabled.

 

[SusieQ]

Page 7-56 of the 2021 SF Owner's Manual confirms that pressing the Driving Assist button will turn off the Smart Cruise Control System. Then it states:
"If your vehicle is equipped with Manual Speed Limit Assist, press and hold the Driving Assist button to turn off Smart Cruise Control. However, Manual Speed Limit Assist will turn on."

I have not tried this but it's worth a try if the Smart Cruise Control system is not your "cup of tea"...

Oh I wish.....it does not work on the 2021 Santa Fe. I drove 2 hours to my dealer because they assured me it could be disabled and we hoped it could be. But at this time it cannot be. Just needs software upgrade we were told....if Hyundai sees fit to do it.

 

[SusieQ]

Not on the 2021

 

[SusieQ]

I got a chance to try out the highway driving assist on the expressway over the weekend and noted the following. I thought the following distance when set to 1 was too close and ended up settling on 2 for the following distance. When a car would cut ahead of me the car did not slow down at all if the car ahead was traveling at a faster rate of speed. The only time the car slowed down was when the car ahead was traveling slower. I guess for me it seemed to work perfectly and had no issues when a car merged in ahead of me.

I appreciate that you shared your experience. Maybe it's just in the Midwest that cars cut too closely in front of you and our vehicle drops from 75mph to 54 mph. That makes the distance you are following irrelevant. It's been driven on busy highways on Illinois, Wisconsin and Minnesota. Unless the highway is open, we are not able to safely use smart cruise control. But thanks for weighing in. We were told it could be disabled to a regular cruise at the time we bought the vehicle so we got a bum steer.