Question about Hyundai's AT

[Jet PAC]

I'm a newbie AT owner. Been driving a MT since 1998. In an AT, if I press on the brakes with the vehicle still in motion, I normally return from D to N in preparation to stop. Now the problem is, I sometimes overshift to R but with my feet still pressing on the brakes. Will this damage my transmission? In comparison to a MT where you hear a craking sound if you mistakenly shift gear, at least I haven't heard of any. Correct me if I am wrong. In an AT, if I press on the brakes, this is also equivalent to pressing on the clutch in the case of an MT, wherein the effect is the gears are temporarily disengaged?

[gearhead000]

Short answer: You don't need to shift to N from D when approaching or preparing for a stop. Just brake to slow the car down, then brake to a complete stop. Depending on whether you're in a stop, you can stay in D if it will be a short one... or shift to N or P if it's going to be long.

[renzo_d10]

^ IMO, unless you're really PARKED, it is normally safer to just put the gear on N then apply handbrake on traffic. When I use AT cars, I don't put the gear on P during traffic cause of the risk that it passes through R to and fro D.

[KIANTOT]

^ IMO, unless you're really PARKED, it is normally safer to just put the gear on N then apply handbrake on traffic. When I use AT cars, I don't put the gear on P during traffic cause of the risk that it passes through R to and fro D.

Agree on this, may mga driver na kapag nag stop sa traffic they put on P, kaya kung ikaw ang sumusunod magugulat ka dahil iilaw yung backing light, one time may nasundan ako na ganyan ang ginagawa kada stop, lipat agad ako ng lane mahirap na baka magkamali si mokong.

[dr. d]

I'm a newbie AT owner. Been driving a MT since 1998. In an AT, if I press on the brakes with the vehicle still in motion, I normally return from D to N in preparation to stop. Now the problem is, I sometimes overshift to R but with my feet still pressing on the brakes. Will this damage my transmission? In comparison to a MT where you hear a craking sound if you mistakenly shift gear, at least I haven't heard of any. Correct me if I am wrong. In an AT, if I press on the brakes, this is also equivalent to pressing on the clutch in the case of an MT, wherein the effect is the gears are temporarily disengaged?

like what the guy above says, just brake without disengaging your trans, until you come to a stop. then put the trans on N or P.
shifting from D to R at speed may unduly stress your AT. in the looong run, it may cause early AT retirement.
some models won't let you shift from D to R while at speed, as a precaution.
pressing on the brakes in AT is just like pressing on the brakes in MT: the gears are still engaged, only the AT allows slippage. no, it ain't the equivalent of a clutch.
and experts agree that N is the proper position when the car is not moving for some time. remaining in D with your brakes on to keep the car from moving, puts stress on your engine and trans, and brakes.

[boytsiks]

I would normally put the car to stop before shifting D to N. Havent tried shifting an AT car in motion though.

* TS - Not sure if this also applies to Hyundai AT's, mine still has this shifter button. I dont normally press it when shifting from D to N to avoid overshooting to R or P. I just push it back and forth when shift D to N and vice versa.

[Jet PAC]

Thank you all for the Inputs. Actually, I just did it 3x accidentaly shifting from D to R but at decelerating speed (around 20-10kph) and while pressing on the brakes. And yes when I'm stopped by a traffic light I shift to N and apply the hand brakes because I noticed staying on D at prolonged stop still puts stress on the engine.

[ishtangli]

Thank you all for the Inputs. Actually, I just did it 3x accidentaly shifting from D to R but at decelerating speed (around 20-10kph) and while pressing on the brakes. And yes when I'm stopped by a traffic light I shift to N and apply the hand brakes because I noticed staying on D at prolonged stop still puts stress on the engine.

I'm by no means an expert but I dont think keeping it in D while stopped puts stress, if any, on the engine, unless you have bad idling. Remember, the engine will continue to rotate/combust even when you are stopped. It just doesnt connect to the drive shaft (in the case of an AT, the torque converter). Also remember, AT is designed for this.

[Walter]

I'm by no means an expert but I dont think keeping it in D while stopped puts stress, if any, on the engine, unless you have bad idling. Remember, the engine will continue to rotate/combust even when you are stopped. It just doesnt connect to the drive shaft (in the case of an AT, the torque converter). Also remember, AT is designed for this.

This method will consume more fuel.

[Walter]

Thank you all for the Inputs. Actually, I just did it 3x accidentaly shifting from D to R but at decelerating speed (around 20-10kph) and while pressing on the brakes. And yes when I'm stopped by a traffic light I shift to N and apply the hand brakes because I noticed staying on D at prolonged stop still puts stress on the engine.

Shift the transmission without pressing the knob / switch. You can shift from R-D-N-D-2-1-2-N without pressing the switch. You need to press the switch to go from D to R to P.

[Jet PAC]

Shift the transmission without pressing the knob / switch. You can shift from R-D-N-D-2-1-2-N without pressing the switch. You need to press the switch to go from D to R to P.

Hi Sir. The Accent Hatch has gate type AT. From P, I need to press the brakes first before shifting to any of R, N, D or the +/-. Then yes I can move freely from D to N to R. Never tried up to P though since it's a long shift and usually I'm already at a full stop.

[yebo]

1. for short stops just keep it in D and just step on the brake.
2. for long stops (some stop lights have timers already so you know how many seconds left before the light turns green) then yes you can put it to N to conserve fuel, and step on the brake or use hand brake.
3. There is no need to put it in P, just step on the brakes while in N. Putting it in P is a disaster waiting to happen if you get hit from behind by another vehicle, sira ang tranny mo nyan. Just keep it in N so that if some id1ot decides to use your car as a brake then at least your tranny will not get damaged.

and lastly...
4. WHY DO YOU SHIFT WHEN YOUR CAR IS STILL MOVING? tignan mo you already accidentally shifted to R. shifting to N while the car is still in motion is the easiest way to fak up your automatic transmission. you never ever shift from D to N when your car is still moving. mamya yan next visit mo sa forum nagtatanong ka na bakit may shift shock na ang tranny mo. just step on the brake gradually until the vehicle stops, then that is the time you shift. makati masyado kamay mo pare. hindi yan manual, AUTOMATIC YAN. and as the name implies, leave it alone, you do not need to play with it.

hawak ka na lang sa kamay ng date mo ng hindi ka shift ng shift. wala kang date hawak na lang kay dayunyor.

[Jet PAC]

Another question if you don't mind, I've heard of this technique to pump or make "bomba" the gas pedal for efficient AT driving. May I get your opinion on this? Thanks!

[gearhead000]

Not really making a pumping motion, but more of not necessary to apply steady pressure on the gas pedal. Especially if you're already on your desired speed, you can relax from the gas pedal until such time you feel you're "decelerating" already (with practice and as you get experience you'll get the hang of it). Also, you can sort of "trick" the A/T to shift early. Once you've gained speed, get off the pedal and watch your rpm drop at which time you'll also feel the gear shifting up. Those are subtle changes so as I've said with more experience and conscious driving (it helps if you have the radio off) you'll ultimately get the hang of it.

[Jet PAC]

Learned a lot from this thread thanks for the inputs. Guess I really need to practice driving an AT efficiently. BTW, my ride is an Accent Hatch AT. So far my first 2 FC computation registered 10.5km/lit. That's 75% city with moderate to heavy traffic, 25% highway running at 100-120kph. I read from other threads it can do 15-18km/lit.

[shibby75]

What happened when you shift from d to r while moving? When i accidentallyshift my corolla that way while was moving around 20kph, the engine sunddenly died to protect itself. Had to do a full stop, turn off the key then restart again.

[[archie]]

Actually the car would not consume more fuel if you stop and keep it on drive. It's just a myth. The difference between neutral and drive when at stop is the regulation of atf to the system. It's still at idle until you press the throttle.

[yebo]

Actually the car would not consume more fuel if you stop and keep it on drive. It's just a myth. The difference between neutral and drive when at stop is the regulation of atf to the system. It's still at idle until you press the throttle.

wrong. the engine speed is on idle yes, but if it is in D then the gear is engaged and it takes more energy to turn at the same idle speed than if it were in neutral. in neutral the engine is just spinning the slush box freely. in D the engine is spinning the slush box, the power is transmitted through the planetary gear or cvt, then to the wheels, then to the brakes. so in effect you are braking the engine.

but yes, the difference in the amounts of fuel used is very small. like you can measure it with a tea spoon.

[gearhead000]

Agree with Yebo's post above, with some addendum.

With my Altis, I can feel the "strain" while stopped in D and holding the brakes. It just feels like the car is building up momentum ready to launch when the brakes are released. So I normally shift to N if the stop will take more than 15 seconds. With the Civic, I can hold the car in D with the brakes and it feels it just has slightly more resistance than N. So even with a minute of stop I can just hold it in D. Again, as I say you need to learn to communicate with your ride, and know its various idiosyncracies.

[Jet PAC]

Hi Sir. The Accent Hatch has gate type AT. From P, I need to press the brakes first before shifting to any of R, N, D or the +/-. Then yes I can move freely from D to N to R. Never tried up to P though since it's a long shift and usually I'm already at a full stop.

I STAND CORRECTED... I just tried to today that I couldn't shift from D or N to R if I'm not pressing on the brakes.