Tell us about the "Highway Driving Assist (HDA)" feature

[Konstantin]

We’ve had our SX AWD in Canada for two weeks now. Love it!
As far as HDA, I’m still confused as functions are very similar to a combination of adaptive cruise control and lane keep assist which can be used in town and not just on highways. I set my own speed limit on highway and in town and it slows down and speeds up and keeps me inside the lane. I tried the same on highway and HDA logo showed up but I didn’t ow notice anything different. The only thing that happened was a warning that my speed set for cruise control is higher than posted speed limit (in Alberta we drive 125-130 in 110 zone).

A few sharper corners on highway Kia could not handle with lane keep assist and I had to intervene manually since it started to beep as it got too close to the yellow lane.
Every 60 seconds it will remind you to place your hands on steering wheel.

All in all I’m happy with it and it made our drives to the mountains much easier especially getting around Calgary traffic on 201.

My settings are, comfort drive mode, one car ahead for the adaptive cruise control and speed set at a bit higher than posted limit to match the traffic around me so it speeds up quicker after a slower car gets out of my way.

Let me know if any questions you have about HDA for a Canadian SX model.

 

[Konstantin]

We’ve had our SX AWD in Canada for two weeks now. Love it!
As far as HDA, I’m still confused as functions are very similar to a combination of adaptive cruise control and lane keep assist which can be used in town and not just on highways. I set my own speed limit on highway and in town and it slows down and speeds up and keeps me inside the lane. I tried the same on highway and HDA logo showed up but I didn’t ow notice anything different. The only thing that happened was a warning that my speed set for cruise control is higher than posted speed limit (in Alberta we drive 125-130 in 110 zone).

A few sharper corners on highway Kia could not handle with lane keep assist and I had to intervene manually since it started to beep as it got too close to the yellow lane.
Every 60 seconds it will remind you to place your hands on steering wheel.

All in all I’m happy with it and it made our drives to the mountains much easier especially getting around Calgary traffic on 201.

My settings are, comfort drive mode, one car ahead for the adaptive cruise control and speed set at a bit higher than posted limit to match the traffic around me so it speeds up quicker after a slower car gets out of my way.

Let me know if any questions you have about HDA for a Canadian SX model.

To add to above: it looks like HDA only adds automatic speed adjustment when on major highways. It went up to 110 from 90 when we exited Banff park and then slowed down to 70 when there was a slower zone. It’s not as helpful as people still drive above speed limit so you have to manually adjust the speed 5-10 higher.
I have not been able to test full stop and go under HDA as others are mentioning it.

My current take, HDA is useless and ACC and LCA are what makes things great on the highway.

 

[Jastevenson]

So can someone confirm that HDA is required for full stop and go without pressing resume? Because otherwise, HDA seems useless. But if it enables full stop and go autonomously, it is well worth it to me.

 

[Konstantin]

So can someone confirm that HDA is required for full stop and go without pressing resume? Because otherwise, HDA seems useless. But if it enables full stop and go autonomously, it is well worth it to me.

I think there was someone earlier in this thread confirming “stop and go without use input” with HDA. I’m on mobile and can’t find it.

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[Mr White]

I think there was someone earlier in this thread confirming “stop and go without use input” with HDA. I’m on mobile and can’t find it.

Confirmed. If HDA light is on the vehicle does not require input for stop and go.

 

[Zaiwhat]

We’ve had our SX AWD in Canada for two weeks now. Love it!
As far as HDA, I’m still confused as functions are very similar to a combination of adaptive cruise control and lane keep assist which can be used in town and not just on highways. I set my own speed limit on highway and in town and it slows down and speeds up and keeps me inside the lane. I tried the same on highway and HDA logo showed up but I didn’t ow notice anything different. The only thing that happened was a warning that my speed set for cruise control is higher than posted speed limit (in Alberta we drive 125-130 in 110 zone).

A few sharper corners on highway Kia could not handle with lane keep assist and I had to intervene manually since it started to beep as it got too close to the yellow lane.
Every 60 seconds it will remind you to place your hands on steering wheel.

All in all I’m happy with it and it made our drives to the mountains much easier especially getting around Calgary traffic on 201.

My settings are, comfort drive mode, one car ahead for the adaptive cruise control and speed set at a bit higher than posted limit to match the traffic around me so it speeds up quicker after a slower car gets out of my way.

Let me know if any questions you have about HDA for a Canadian SX model.

Thank you for the clarification. This is exactly what i was hoping to hear.

 

[plutoridge]

I also found these features to be working pretty ok most of the times. LKA/HDA tries to steer you to one side when say lanes are merging (and middle yellow line suddenly disappears) and it doesn't quickly recognize that.

 

[Konstantin]

I also found these features to be working pretty ok most of the times. LKA/HDA tries to steer you to one side when say lanes are merging (and middle yellow line suddenly disappears) and it doesn't quickly recognize that.

I found the same issue. Maybe they will fix it with software update. In Alberta, Canada it's pretty common for highways to go from two lane one way to three lane and then back to two lanes. Telluride was getting really confused and tried to steer instead of looking a bit ahead and continue the course straight to get in between the lanes again.

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[Telluwhat]

I got EX, and HDA+LKA+ACC works fine on interstate most of the time. It needs 2 visible lanes on both sides to steer correctly. I'd say if you get more than 20ft. break in the lanes it gets confused and just releases the steering wheel. It will keep going straight until it sees 2 lanes again. It also will not turn the steering wheel more than 10-15 degrees(approximate), so gotta watch out for that. On a local road with 55mph speed limit and without shoulders i did not feel comfortable using it because it kept getting VERY close or on the white line on the right. Just remember, it's just a useful assist feature and you are still responsible for driving.

 

[EROCK]

Love this feature on my SX but it’s definitely not a “set and forget” feature

 

[Buckeye-TRide]

i think you are wrong i have an S and ADA and Smart cruise it drives itself... if you read the options list your not really getting 10 to 12k worth of stuff to upgrade to sx or sx prestige imho... in a year Kbb will only probably give you 1.5 or 2 k worth of value

According to KIA only the EX and SX have HDA. Lane keep and start stop cruise are really what makes the car drive itself not the HDA feature that only adjusts speed based on the nav.

 

[OurRide]

According to KIA only the EX and SX have HDA. Lane keep and start stop cruise are really what makes the car drive itself not the HDA feature that only adjusts speed based on the nav.

u read it different. Kia web shows Hda and adaptive cruise together.. that's what its is my S and it works great .. i suggest you drive one and try it.

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[Buckeye-TRide]

u read it different. Kia web shows Hda and adaptive cruise together.. that's what its is my S and it works great .. i suggest you drive one and try it.

No I doesn’t, not in the US at least.

 

[Rx9790]

I test drove the KIA Telluride SX and very interested in buying one but extremely disappointed that Highway Driving Assist doesn't allow you to adjust the cruising speed at anything other then the speed limit. KIA this should be a software update that you should make.

Wrong. HDA lets you use any speed. If you set to the current speed limit then "auto" will display over the numbers and it will adjust to changing limits.

 

[Rx9790]

Drove from New York to Maryland using the smart features, and it was amazing. I did notice on sharper turns that sometimes it drifts to the edge of the lane and starts beeping, but other than that it was a smooth ride. I found that HDA does work when I had android auto going, so not sure why the book says it wont. I had waze/spotify going on android auto and HDA still adjusted speed correctly when set to match the current speed limit. Clearly highway driving it isn't ideal to do the speed limit, so I set mine much higher and just let it adjust to match the car in front of me. Its a very minor inconvenience to look for speed limit signs and adjust accordingly.

The braking took some getting use to, and the maximum follow distance is way too much. At 75mph I was about 20 car lengths behind the vehicle in front of me. Once adjusted to the lower setting it was right where I expected it to be.

Following distance is user adjustable in 3 increments with a steering wheel toggle. Increments seem to be in 2 second distances. Of course speed makes these distances vary.

 

[Rondakay]

I test drove the KIA Telluride SX and very interested in buying one but extremely disappointed that Highway Driving Assist doesn't allow you to adjust the cruising speed at anything other then the speed limit. KIA this should be a software update that you should make.

That information is incorrect. I typically set my scc to 72 when limit is 65 and it works the same way.

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[Rx9790]

That information is incorrect. I typically set my scc to 72 when limit is 65 and it works the same way.

Yeah, it seems like responders are just parroting others and not actually driving these. Lot of wrong info in this thread. Same experience as you Rondakay. I set hda at 85 all the time traveling between W Va and ohio

 

[jazzyone]

Yeah, it seems like responders are just parroting others and not actually driving these. Lot of wrong info in this thread. Same experience as you Rondakay. I set hda at 85 all the time traveling between W Va and ohio

The point of HDA is to automatically adjust SCC speed consistent with what the GPS speed limit displays. Thus, if the GPS speed limit shows 55 mph and you adjust the SCC to 55 mph, HDA is enabled and next time the speed limit on the GPS changes, the SCC will automatically change the maximum SCC speed. If you set the SCC maximum to anything other than what is shown on the GPS, the SCC maximum speed will not change automatically. Additionally, HDA function only work on certain federal highway. It does not work on other roads.

HDA is designed to perform a specific function, as described above, and is not a general term for “self driving”, like “autopilot” is for Tesla. Yes, KT “self-driving” works with or without HDA enabled.

In regards to requesting KIA make HDA setting anything other than the posted speed limit shown on GPS, you are asking them to assist in breaking traffic law. For real? That’s obviously a huge liability for KIA on many fronts. Why would they do that?

 

[Rx9790]

The point of HDA is to automatically adjust SSC speed consistent with what the GPS speed limit displays. Thus, if the GPS speed limit shows 55 mph and you adjust the SCC to 55 mph, HDA is enabled and next time the speed limit on the GPS changes, the SCC will automatically change the SCC maximum SCC speed. If you set the SCC maximum to anything other than what is shown on the GPS, the SCC maximum speed will not change automatically. Additionally, HDA function only work on certain federal highway. It does not work on other roads.

HDA is designed to perform a specific function, as described above, and is not a general term for “self driving”, like “autopilot” is for Tesla. For KT, “self-driving” works with or without HDA.

In regards to requesting KIA make HDA setting anything other than the posted speed limit shown on GPS, you are asking them to assist in breaking traffic law. That’s obviously a huge liability for KIA on many fronts. For real? Why would they do that?

uhhm, have you ever driven on a highway? Driving the speed limit is not common. There is literally no liability for Kia if you exceed the speed limit. Also I know all this, I tested every function. hat does not change the fact that people are giving out the wrong info because they have not used the system or something. HDA enables on certain highways irrelevant of the speed you set.

 

[jazzyone]

uhhm, have you ever driven on a highway? Driving the speed limit is not common. There is literally no liability for Kia if you exceed the speed limit. Also I know all this, I tested every function. hat does not change the fact that people are giving out the wrong info because they have not used the system or something. HDA enables on certain highways irrelevant of the speed you set.

Edit: reading earlier response on this thread by you, and based on its context, you appear to agree with what I said about HDA and automatic set speed adjustment. But point of HDA still remains to be automatic SCC set speed control based on GPS speed limit shown.