Q: My 2004 suburban has D 3 2 1 what should I drive in D or 3

asked by on

I have a 2004 and have never seen the D 3 2 1 on any of my vehicles is the D overdrive? And do I use the 3 in town?

My car has 77000 miles.
My car has an automatic transmission.

The computer controlled automatic transmissions in today’s vehicles are designed to be completely intuitive. You will not gain any performance advantage, or gain in fuel economy, by driving around town with the shifter in the 3 setting. For the best performance, simply put the shifter into the D (or drive) position and drive normally. The only caveat is when towing a load that is equal to, or more than, 75% of the vehicle’s towing weight capacity. When towing a heavier weight, it is recommended to engage the tow function on the transmission by depressing the button located on the end of the shifter. Depressing the tow button tells the transmission to expect a larger load and it will use a different set of parameters for shifting. So, unless you are towing fairly heavy loads, it is best to just put the shifter into the Drive position.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. My 2004 suburban has D 3 2 1 what should I drive in D or 3

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Q: Misfire rough idle

Changing the radiator should not have caused a misfire. Replacing the plugs and the MAP sensor was a great idea. What we commonly refer to as the O2 sensor is not located in the fuse box. There are two O2...

Q: Is it possible to change autoride air shocks from factory to conventional shock absorbers? 2005 Cadillac Escalade

Hello - yes, it is possible, and indeed a common modification, to swap out the air ride suspension on this model for conventional suspension. In fact, several auto suspension suppliers make conversion kits to do just this. As you have...

Q: Coolant loss

Hello, the water pump gaskets can leak, with this mileage you would want to replace the coolant pump also. It would be best to have a certified mechanic look at the vehicle and determine exactly what is going on....

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.