If you have used manual cars, then you know these are simply gears you have to shift through depending on the need.
However, there is a common label as 3 2 1 in an automatic car. So, what does such a label mean?
The 3 2 1 label also means these are the gears you have to go through when driving. Each of the gears will have a special time when they are being used.
This is if you do not want to keep the car in Drive mode for some reason.
In most cars right now, position 3 is the normal drive mode. It may be labeled as D-3 or 3-D also.
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As for numbers 2 and 1, it means that the car drives in gears 2 and 1 respectively without shifting. These two are low gears, meaning the car will now have more torque when driving compared to when driving in D.
When to Use 3, 2, and 1 Gear in an Automatic Car
Being an automatic car, it will change its gears based on the throttle position. However, at times you need to keep the gears from switching to get over obstacles, hilly places, and so much more. That is why you have the modes mentioned above.
If you are going downhill, mode 1 would be the best choice. So long it involves a lot of going up and down, gear 1 would be the right pick.
Gears 2 is the best for ascending any hilly terrain or going over rough roads.
Each of these gears would have a different feel for the person driving the car. You will notice that 1 and 2 have a lot more torque compared to mode 3. However, these gears would not give you the best speed. For more speed, you need to shift to a higher gear.
Also, for someone who intends to use the car to tow a trailer, consider keeping the transmission in the low gears. This is to reduce potential heat that might build up in the automatic transmission.
Should You Drive in 2-mode All the Time?
Just because you can use it for hilly terrain, it does not mean you always drive the car in 2. This is because there is a limitation on the speed that such gear can handle.
You would then have to rave the car higher to keep going generally. So, it puts strain on the engine, and also fuel consumption becomes higher.
For those who want to drive the car over long distances, simply put it in D and have it shift to the highest gear for more speed and better fuel efficiency.
Can you change from D to 2 or 1 while driving?
It is not advisable to do so when the engine speed is too high for the gear. You are advised to slow down to around 20mph to make the shift.
Which gear should a person use while driving uphill?
An automatic car will shift to the low gears by itself automatically. No need to keep changing yourself. Only use 2 and 1 in terrains where you have to keep the car from changing the gears.
How fast can you go in 3rd gear?
For manual cars, it is advisable to do 20 to 40mph in 3rd gear. As for automatic cars, it will shift by itself so no need to worry about it.