"Aggressive" G2 cruise control?

[srobak]

Not sure how else to describe this in the subject line - so let me try to better explain here in the post - and see if anyone else experiences similar?

2 weeks in on my 15 G2 V6 AWD Ultimate... loved every mile (1500) so far). Has really helped to bring some enjoyment back into driving and especially Chicagoland commuting.

I am coming out of an 11 Azera Limited. Still a very nice car for it's time, and more on the touring sedan side, whereas the G2 is almost a sport-touring sedan.

Anyhow - the Azera had a 6 speed trans and I usually set the cruise on my commute for 70 to 72. Chicagoland traffic being what it is - I am often defeating the cruise while people figure out how to go together in straight, parallel lines - and then I hit "resume" - going back to 70ish from 58-65. The Azera would have a very relaxed cruise control in general - even if I hit "resume" at 35 - it would smoothly accelerate all the way to 72 just as if you were being nice and gradual about it. Nice and easy.

In the G2, even in ECO mode - if I am 5mph below the cruise set point it ALWAYS drops a gear - and sometimes 2. It then _firmly_ accelerates with RPMs over 3k and a nice exhaust note back up to the cruise set speed. Reminds me a lot of how the GM cruise controls from the early 90's would behave & race you back up to cruise speed.

From a -5mph point - I don't think this is really necessary. I have even started to play with the paddles after hitting resume when I feel it getting ready to kick down (there is a very brief but noticeable lull on the resume in top gear while it thinks about a gear selection). I pop it back into 8th and then it is smooth and easy the rest of the way back to the set point.

Now - while I understand the nature of the 8 speed is to have shorter shift points and consequently be more economical - I really don't need it to "race" from 65 back to 72 - especially when I am in ECO mode. It is noticeable enough where I always get quizzical looks from my passengers - as the car goes from nice and quiet to a noticeable growl from the exhaust - while we "touring" down the highway.

So... lots of explanation here, but I wanted to be clear on what I was experiencing - not so much because I think there is a problem with the car, but mostly because I am curious if anyone else has experienced similar. I would really love to have the smooth & easy acceleration from cruise that I had in my Azera & just do not see the need for the downshift. It is obvious the torque is there - otherwise I wouldn't be able to upshift it manually. In fact - I have been able to upshift and accelerate smoothly all the way from about 58 or so. I really don't need it to pull so hard to get back to cruising speed.

Anyone notice this aggressive behaviour in resuming their cruise?

Thanks!

 

[canuckv8u]

I don't have this issue, but I have the V8...

My issue with the cruise is the braking with the car ahead coming to a stop. It seems the cruise is slow to react. Instead of gently slowing down it gets close and then brakes fairly hard. Very annoying...

 

[srobak]

I don't have this issue, but I have the V8...

Yeah - I wouldn't expect the V8 to have this issue at all with it's torque. This is part of why I included my engine size to see if other V6'ers experience this. Good to know that the 8 does not, however.

My issue with the cruise is the braking with the car ahead coming to a stop. It seems the cruise is slow to react. Instead of gently slowing down it gets close and then brakes fairly hard. Very annoying...

I only experience this when someone switches into my lane too closely. If I am already pacing up onto someone, then it seems to slow down gradually to the 5 car-length mark (I keep it on shortest distance when on the highway). I have tested it behind a car all the way to a full stop at a light. So long as the guy in front of me is slowing & braking "normally" - so does my car. Works really impressively I must say.

My main concern is the cruise-accel... it is a tad bit annoying and I feel like I have to ride the + paddle in order to prevent it.

 

[Alwaysforward]

As noted above, my V8 doesn't have this issue either.

 

[Nikgen]

Yeah - I wouldn't expect the V8 to have this issue at all with it's torque. This is part of why I included my engine size to see if other V6'ers experience this. Good to know that the 8 does not, however.



I only experience this when someone switches into my lane too closely. If I am already pacing up onto someone, then it seems to slow down gradually to the 5 car-length mark (I keep it on shortest distance when on the highway). I have tested it behind a car all the way to a full stop at a light. So long as the guy in front of me is slowing & braking "normally" - so does my car. Works really impressively I must say.

My main concern is the cruise-accel... it is a tad bit annoying and I feel like I have to ride the + paddle in order to prevent it.

My V6 AWD does not accelerate "aggressively" unless it's way under the set speed - certainly not at 5 mph under set speed. I feel the aceleration is appropriate - when on cruise, I do want to get back up to speed pretty quickly. Why would you want to leisurely get back up to set speed?

I also find it brakes smoothly when cars I'm following brake smoothly. However if someone "inserts" themselves within the set zone, it does brake hard.

 

[Shawn33]

I had to laugh about the 90's GM remark. I guess that's were I learned how to use cruise as to this day, even in the Genny, I either accelerate myself until a mile or 2 above my set speed then hit resume or I just reset to the speed I am going and then bump the setpoint up to where I want to be. I found with any cruise it always eases back down to speed then accelerate up to speed.

Shawn

 

[Ernie3647]

Since my 2011 Genesis I do a lot of my driving in cruise when permissible. I find it smoother more consistent and more efficient especially with the smart cruise feature. That said I did notice on my 2011 at said speed (70 to 75) when it had to slow down 5 to 10 mph it would never downshift on its own at that difference. Of course that was a 6 speed transmission. On my 2015 with 8 speeds under the same conditions it usually does shift down 1 gear maybe 2 if it goes below 10 mph. A few things come into play here if the lane clears completely it will more aggressively try to get to set point. If there’s another car up further even though it doesn’t register on the display it will seek set point less abruptly. Did it always operate that way for you? Maybe your symptoms are more pronounced but I don’t find it that objectionable. Apparently that’s the way it’s programmed. By the way my Sonatas smart cruise won’t down shift under those conditions either but of course it’s 4 cylinder with a 6 speed transmission.

 

[srobak]

My V6 AWD does not accelerate "aggressively" unless it's way under the set speed - certainly not at 5 mph under set speed.

OK.... does it downshift at -5? Tonight on the way home I was paying extra attention and at a -6 resume it went from 8th to 6th, raced it's way back up those 6 to the set point and then rolled through 7th to 8th. That's just unnecessary.

Why would you want to leisurely get back up to set speed?

Why wouldn't I? If I am only -5 or -8 I don't mind it taking 5 whole seconds to get back there.... I don't need to be there in 1.5 - and I certainly don't need to burn the extra gas to accomplish that either. Dropping a couple of gears, sending the RPMs north of 3k and pulling firmly up to the set point.

I had to laugh about the 90's GM remark.

So you know what I'm talking about On those old GMs if the cruise was set at 60 and you resumed at 45 - it would drop a gear every single time and it would pull with authority back up to the set point. Even back then I thought that was silly. My 05 Accord never did that, and the Azera was even more ginger on the resumes.

That said I did notice on my 2011 at said speed (70 to 75) when it had to slow down 5 to 10 mph it would never downshift on its own at that difference. Of course that was a 6 speed transmission.

Probably the same 6 speed that was in my Azera and that is on the new Sonatas. Makes me wonder if it is directly tied to trans programming then - and if there is any way to remap that.... especially while in ECO mode.

On my 2015 with 8 speeds under the same conditions it usually does shift down 1 gear maybe 2 if it goes below 10 mph.

Ok - so you have experienced something similar... do you happen to experience it at -5?

A few things come into play here if the lane clears completely it will more aggressively try to get to set point. If there’s another car up further even though it doesn’t register on the display it will seek set point less abruptly.

Yeah, I noticed that - and I can understand that the car would behave that way under the different conditions based upon it's programming. I guess I just wish the same sort of resume happened regardless if it was a clear road ahead or not. I don't need to race back up to speed.

Did it always operate that way for you?

Since day 1.

Maybe your symptoms are more pronounced but I don’t find it that objectionable. Apparently that’s the way it’s programmed.

Maybe. I guess I just got lazy in the Azera. But I am going to ask the shop about it.

 

[MagicRobert]

In my wife's V6 G2, the cruise is very rarely "abrupt", when re-engaging.

OTOH I have gotten into the habit of using the Smart Cruise Control, setting the speed at or above the speed limit, and letting traffic manage the rest. Works well for me in rush hour traffic.

I think what you are reporting is definitely worth a question next time you are in the shop. I have no clue if it is adjustable.

 

[Analog]

I don't particularly like the smart cruise control. It works almost magically well in many situations but I can't just set and forget for everything. I do find it accelerates and brakes too hard. I know having a brake-happy inattentive driver in front of me can cause this, but even in situations when light acceleration is called for it will delay and then accelerate harder.

I love acceleration but generally I want to be the one invoking it. I'd prefer the car to be smooth. Ultimately I think time and a lot of programming effort will fix my concerns (for future models, not my car.) It will learn as I disengage it for the same thing over and over what to do, and do it in the future.

At least it's fairly easy to toggle back and forth between CC and SCC (press the cc button off and then on, hold distance button for 5 seconds.)

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[amartz]

My issue with the SCC isn't how hard it accelerates, but how long it takes to decide now is a good time to start accelerating.

 

[carltonsisk]

2015 G2 3.8. Never have an issue with the amount of acceleration with smart cruise. Doesn't drop a gear unless it seems it needs to. I agree though sometimes wish it would start to move the car earlier.

 

[PaFromFL]

My issue is aggressive braking when someone crosses through your lane, particularly if they are at a lower speed. It it obvious to me that the car will leave my lane long before I get there, but the radar only senses range rate and panics. When you are traveling 80 mph on a crowded interstate highway, it is dangerous to brake for no apparent (to humans) reason. I switch to dumb cruise control in dense traffic where frequent lane changes are likely.

 

[Nikgen]

My issue is aggressive braking when someone crosses through your lane, particularly if they are at a lower speed. It it obvious to me that the car will leave my lane long before I get there, but the radar only senses range rate and panics. When you are traveling 80 mph on a crowded interstate highway, it is dangerous to brake for no apparent (to humans) reason. I switch to dumb cruise control in dense traffic where frequent lane changes are likely.

In dense traffic, you should really cancel cruise altogether as it will just be constantly disengaging as you brake. However, SCC is especially not suitable for dense traffic where cars will move into your set zone frequently since the car will obviously brake to maintain the set distance. On the other hand, in normal traffic, SCC works great overall and I just hit cancel when I see that happening in front of me and then hit resume when the situation resolves.

 

[andrewblanejr]

I just bought a 2015 v6 awd. I love SCC, but I DEFINITELY think it is too aggressive. I've come to this conclusion after about 4 hours of use. Very handy feature, it's revolutionized my commute, but I wish it could be adjusted to be softer and less aggressive, especially when I have passengers.

 

[amartz]

My issue is aggressive braking when someone crosses through your lane, particularly if they are at a lower speed. It it obvious to me that the car will leave my lane long before I get there, but the radar only senses range rate and panics. When you are traveling 80 mph on a crowded interstate highway, it is dangerous to brake for no apparent (to humans) reason. I switch to dumb cruise control in dense traffic where frequent lane changes are likely.

+1 Sometimes wish I had a "dumb" cruise control....

 

[srobak]

+1 Sometimes wish I had a "dumb" cruise control....

You do.

After you engage the cruise button (but not having set a speed) press and hold the smart-cruise distance-keeping button on the steering wheel for a few seconds. Dash screen will display "CC Mode" momentarily. You now have dumb cruise control.

Press and hold distance-keeping again (without an active, set speed) and you will see "SCC Mode" to return it to smart-cruise mode.

 

[amartz]

I'm guessing that's for the Gen2 models. I don't think I have that on my 2012.

 

[srobak]

I'm guessing that's for the Gen2 models. I don't think I have that on my 2012.

Sorry - I thought you were referring to a G2.... as this is the G2 sub fora.

See? Now you have another reason to get one!

 

[Nikgen]

I'm guessing that's for the Gen2 models. I don't think I have that on my 2012.

Then why are you posting your concern/issue in a G2 thread?