The most logical answer lies within your owner's manual... check it out to be sure!
I think you are leaving out one other selector position... "1". You should have selections of 1, 2, D3, and D which means you have a five speed automatic transmission (reverse counts too I believe). In "D" you are allowing the transmission to automatically shift gears as necessary depending on driving conditions. The transmission always starts in "1", selects "2" when appropriate, "3" (D3) when appropriate, and finally "4" (D) when appropriate as well. "D" provides you with an overdrive gear ratio.
If you are traveling up a steep grade, you might find the speed limit is at or very near the shift point of the auto transmission. As the car slows down (uphill) and you give it gas to maintain speed, the transmission downshifts, then when speed picks up it shifts back again. This can happen repeatedly and is hard on both you and the car. In this case, a shift to D3 would keep the car in a lower gear and prevent all that shifting until you got past that steep incline. Yes, the car would be going slower if you maintained the same throttle position but then it could go just as fast with more fuel but increased engine rpm. The added engine rpm shouldn't put the engine near it's limit and won't hurt it.
Regarding a down hill scenario, keeping the selector in "D" could have your car accelerating too much just from gravity pushing it which would have you putting on the brakes a lot. This could overheat the brakes until they faded or failed which is certainly not good going down hill!
In this case, you would merely select "D3" and let the transmission use the lower gear ratio to slow the car. Yes, the engine rpm will pick up but you should feel the car slow noticably. If you get the car going slow enough, you could even put it in "2" and feel the speed limited even more.
That's the skinny as I know it for automatic transmissions... good luck!
2006-06-21 18:24:04
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answer #1
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answered by Les 4
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DUDE,ARE YOU TRYING TO BLOW THAT CAR UP!!!just kidding you are fine. D is for drive-use this 99% of the time,if the gear selector goes Park-Rev-Neutral-D-D3-D2-D1(or just 1) you have a 3 or 4 speed automatic that most likly has an OVERDRIVE as the top gear ( an overdrive saves fuel by slowing down the engine at a given mph but the trade off is acceleration and heavy loads or trailers) to illustrate some cars have a button that controls the overdrive ,it will show a turtle and a rabbit -hope this helps
2006-06-21 18:22:44
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answer #2
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answered by badmts 4
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Hi............!!!
BADMTS and LES are right those D1, D2 &D3 are the overdrive gears provided in your car...
What all they have had told are right...
Also, in some cases if you need a pick up or some extra power like in the street races, you can use this option in the plains also, just you have to do is
1. Put the car to the D1
2. As the engine reaches a limit, turn down to the D2, you will gain extra power
3. Then turn down to the D3, as engine catches up &
4. Ultimately you can put to the D option to get the max. speed....
Hope you are having the (P, R, D, D3, D2, D1) pattern of gears
And if you are having the (P, R, D, D3, D2) pattern of gears, then also it implies the same, just leave the D1 option out of the above and start with the D2...............
All The Best................!!!
2006-06-28 02:52:06
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answer #3
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answered by abhishek 2
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I have a 2001 Accord V6. I recall receiving something in the mail a few years ago, extending the warranty on my transmission. You might check to see if Civics were also have transmission problems. Personally, I haven't had any problems. But, it is nice to know that Honda extended the warranty in an area where there have apparently been some complaints. Again, you should check to see if your car is similar to mine re: this.
2016-05-20 10:33:21
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answer #4
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answered by Anonymous
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Okay, D is your overdrive gear. D3 is your normal driving gear. 2 is if you want to down shift from D3 in the event you are going down hill or you want to help make the car slow down a little sooner. 1, if it is there, is for going up steep hills. (go slow though, too fast in first gear is not good). Hope this helps.
2006-06-21 18:14:53
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answer #5
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answered by fasndvs 1
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the "D" stand for direct Honda went fancy by calling it D2&D3&D as in older cars or dometics it was 1st 2nd and D
2006-06-21 18:05:03
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answer #6
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answered by cutchant9 1
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