• Car enthusiast? Join us on Cars Connected! iOS | Android | Desktop
  • Hint: Use a descriptive title for your new message
    If you're looking for help and want to draw people in who can assist you, use a descriptive subject title when posting your message. In other words, "I need help with my car" could be about anything and can easily be overlooked by people who can help. However, "I need help with my transmission" will draw interest from people who can help with a transmission specific issue. Be as descriptive as you can. Please also post in the appropriate forum. The "Lounge" is for introducing yourself. If you need help with your G70, please post in the G70 section - and so on... This message can be closed by clicking the X in the top right corner.

Delayed throttle response?

R

RickA1

Registered Member
Joined
Jun 7, 2016
Messages
58
Reaction score
0
Points
6
I just got a 2016 3.8 RWD base. Coming from a turbo Sonata. Love the car, but when I'm cruising at any speed, there's like a one second delay from the moment you step on on it until it downshifts and goes. Pretty scary thinking that you might need to get out of the way from something (Edit: Normal mode; haven't really tried sport).

Is this a "normal feature" or is there something wrong with my car? Would like to know before checking in with the dealer.

Would also like to say this is a great forum. I see lots of participation and good info. Tried to search this but didn't get anywhere.

Thanks for any input!!

Rick.
 
I feel that hesitation too. Feels kinda like the computer is deciding if it's really go time and then finally decides to accelerate. Using the paddles to downshift are just as sluggish as well. People will say you should've gotten the 5.0 blah blah blah but my wife's Lexus GS350 and the Infiniti G37 and q50 have the approximate same size motor and their pedal response is excellent. I think the transmission response could have been programmed to be a little bit more snappy.
 
Last edited:
Rloyola0426 said:
I feel that hesitation too. Feels kinda like the computer is deciding if it's really go time and then finally decides to accelerate. Using the paddles to downshift are just as sluggish as well. People will say you should've gotten the 5.0 blah blah blah but my wife's Lexus GS350 and the Infiniti G37 and q50 have the approximate same size motor and their pedal response is excellent. I think the transmission response could have been programmed to be a little bit more snappy.
Click to expand...

The vehicles you've mentioned are all sport versions. I drove the ES 350 and M37, and found the response somewhat slow. In fact, I actually drove the M57, which is the V8 and found myself asking, "Why do I have all this power when it is delayed response?"

There's another thread on this subject. Something about some magnets in a flap within the air intake box. Might help somewhat, but yes it seems the computer is tuned to slow response. May be better to have fewer gears?
 
This was definitely an issue with the G1 3.8, and to some extent, the 5.0. Look for threads about "air box" or "magnets". Whether the same thing applies to the G2, I couldn't say. Maybe somebody with one that's tried it can chime in.
 
Thanks for the input so far. Couldn't find that thread; maybe with more time later.

It's not about power. The power is there, just hesitates way too long.

I just can't believe this can be considered normal. it's outright dangerous.
 
Black genesis badges emblems letters lettering chrome delete
Many threads on this. It's a common thing for the Genesis sedan, coupe and many BMWs

What you need is a Sprint Booster. Again there are many threads on this.

SprintBooster, a Plug-n-Play Performance Upgrade for your Model Year 2000 or later vehicle. This is an upgrade that you can feel with normal everyday driving, not just on the track at redline like most other performance upgrades!
The ETC (Electronic Throttle Control), which is also known as Drive-By-Wire, has the unfortunate downside of delayed response and subdued acceleration, which can create problems in certain situations such as up-hill starts, quick gearchanges and overtaking.
Click to expand...

https://uniqperformance.ca/product/2015-v8-genesis-sedan-sprint-booster/
 
Last edited:
if you drive it like you stole it, the downshifts will become snappier! however, i've also found that sport mode gets rid of some of that delay you're experiencing. :D
 
Ok so I've seen a couple of comments about this "learning" transmission. Is it really true?
 
Even the 5.0 has a bit of delay in normal mode, but not enough that I would call it dangerous in normal driving. Sport mode is a lot more responsive, in part because it'll hold a lower gear so it doesn't have to downshift (which can get annoying if you're not driving in a spirited fashion). I find normal mode is fine for most driving scenarios.

The paddle shifters are also rather laggy, just like every other car I've driven with a traditional automatic transmission.
 
I've looked into that sprint booster. All it does is trick your car into thinking the pedal is more depressed than it really is. You lose the ability to modulate the throttle with fine inputs since you only have 50% of the pedal to work with (or something to that effect). Not sure if it is worth it when you can just have your foot travel further with the same results for free.
______________________________

Help support this site so it can continue supporting you!
 
Use sport mode when you want the faster response. I do occasionally if I want to pull away from a stop light and get around a slow poke. Usually I just leave it in Normal mode. Keep in mind that this is a 2 ton car. I would not expect a rocket. Compared to other cars in the same class, it's plenty adequate.
 
i have the same issue with my V6 signature. when i want to get up and go, the car seems to be sleep at the wheel and then decides to wake up after about 2 seconds. i have trained myself to account for the late response. on a side note, my wife car(same year and make) has a better response then mine and hers is a base model. i actually enjoyed driving her car but she doesnt let me borrow it any more.
 
Last edited:
I really don't have an issue with this at all - and like the OP I am coming from a Sonata 2.0T. Part of it is down to the fact that turbos hit with big torque down low and thus feel - and are - more responsive than a V6 which has to build revs to build power.

In regular driving I find throttle response in normal mode entirely adequate - particularly once I was more used to driving the car and understood better what throttle inputs would yield what kind of response - auto powertrains from different manufacturers are all slightly different in this regard. My initial impression was that it was a bit "laggy" but this disappeared really after my second extended test drive where I had more of a feel for the transmission and how it responded. I drove the car back to back against both the Lexus GS, Acura TLX and the Infiniti Q50 and did not find it remotely lacking in power or throttle response against any of those. (and it was waaay better than the TLX transmission which mostly didn't seem to have a clue what I was asking of it).

In sport mode everything is more crisp and immediate. I don't use it much around town as the transmission hangs on to revs and thus burns more gas. But if you drive aggressively all the time then that's the mode you want to be in all the time.

I have perceived NOTHING that I would remotely describe as "dangerous" in terms of throttle response. This car is more than capable of hustling quickly on demand. Highway merging is one of my fave things. :D
 
KDM Warehouse is the official Genesis Forum Store! We ship from the USA, not Asia! --> [CLICK HERE] <--
Looking to update and upgrade your Genesis luxury sport automobile? Look no further than right here in our own forum store - where orders are shipped immediately!
I had this problem on my G1 and solved (more or less) removing the rounded door with a magnet in the engine's Air Filter box, I don't know if this is doable on G2
 
I had done this a while ago, and was very happy with the results, especially for a rolling stop where you are merging quickly out into heavy traffic. After a recent unfortunate encounter with a deer, turns out they replaced the air box. And I could tell it immediately, as the dreaded delay was back. So I pulled the flap off to look at it (very simple, one screw. It's more effort getting the top of the air-box lid out of the way!), and tried reversing one of the clamping magnets, as somebody here suggested. The result was that the flag never closed, floating about 1/4" open all the time, which wasn't exactly what I wanted. So then I just left one of the magnets out. Now the flap closes, but just from it's own weight, and as soon as there is any air draw, it opens up. And the prompt throttle response is back! :D
 
Black genesis badges emblems letters lettering chrome delete
StarPower said:
Even the 5.0 has a bit of delay in normal mode, but not enough that I would call it dangerous in normal driving. Sport mode is a lot more responsive, in part because it'll hold a lower gear so it doesn't have to downshift (which can get annoying if you're not driving in a spirited fashion). I find normal mode is fine for most driving scenarios.

The paddle shifters are also rather laggy, just like every other car I've driven with a traditional automatic transmission.
Click to expand...

I disagree a little. Especially when you're getting used to the car - there is new risk to manage.

My 2009 4.6 had a throttle delay and now my 5.0 Equus does. I've learned to drive with it but there have been a few occasions that have been a little hairy and luckily for me the other driver has had the wherewithal to maneuver.

It is second nature for me now to hit the sport mode button when accelerating on the highway in certain areas. 5 lane freeways with merging 2 lane off ramp requires quick responses.

The drive by wire cars (for fuel efficiency) has put some new risk into driving.
 
amartz said:
I had done this a while ago, and was very happy with the results, especially for a rolling stop where you are merging quickly out into heavy traffic. After a recent unfortunate encounter with a deer, turns out they replaced the air box. And I could tell it immediately, as the dreaded delay was back. So I pulled the flap off to look at it (very simple, one screw. It's more effort getting the top of the air-box lid out of the way!), and tried reversing one of the clamping magnets, as somebody here suggested. The result was that the flag never closed, floating about 1/4" open all the time, which wasn't exactly what I wanted. So then I just left one of the magnets out. Now the flap closes, but just from it's own weight, and as soon as there is any air draw, it opens up. And the prompt throttle response is back! :D
Click to expand...
So you did it on the G2? I will need to get that air box open as I did with my G1. Thanks for the response.
 
danygenesis said:
So you did it on the G2? I will need to get that air box open as I did with my G1. Thanks for the response.
Click to expand...

No, as in my signature, I have a 2012. I also was looking to see if anybody had tried it with the G2 and had similar results.
 
amartz said:
No, as in my signature, I have a 2012. I also was looking to see if anybody had tried it with the G2 and had similar results.
Click to expand...

Ok thanks anyway and lets hope somebody can tell.
 
I find the delay is more related to the "drive by wire" gas pedal. I also find my leg gets tired as it always pushes against the pedal resistance as you wait for the engine to respond (with normal pedal modulation to maintain a steady speed). I had the same problem with a new Buick several years ago, but even worse. I just wish pushing the pedal to the engine accelerating was more linear.
 
You must log in or register to reply here.

Cars Connected in the Apple App Store Cars Connected in the Android App Store
Great products:
- VIN Check
- Add more horsepower!
- Clean your leather!
- Safe Emergency Charging
- Windshield Repair Kit
- Chemical Guys HydroSpeed Ceramic Quick Detailer
- Chemical Guys HydroCharge High-Gloss Hydrophobic SI02 Ceramic Spray Coating
- Get a dash cam!
- Auto Buyers Market
- Foreign invaders vs USA gangs

The Genesis License Plate Frame
Protect your vehicle from code scanners

Featured content

Back
Top