What exactly is the "Auto" setting on GM truck transmissions?

Saga

Banned
Feb 18, 2005
2,718
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This has bothered me considerably since trying to Google "auto" on anything related to a vehicle or transmission obviously is going to have staggering results aimed towards the words "automobile" and "automatic transmission". I remember checking the owner manual when I bought my truck in 07 and never saw an explanation listed.

Obviously I'd venture to guess that the "Auto" setting is 2wd with the front differential engaging when slippage is detected, but I'd love some clarification - especially clarification on if the Auto setting is safe to use all year around, on dry pavement, etc.

Clarification?
 

masteryoda34

Golden Member
Dec 17, 2007
1,399
3
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I have the Auto setting on the '98 Suburban that I drive. You are correct about its function. It engages the drive on the front 2 wheels when slippage is detected. Great feature for winter driving. IDK about all year use though. Honestly, I don't see a need for it when the pavement is dry anyways.
 

Vette73

Lifer
Jul 5, 2000
21,503
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Well I am glad you told us the year, make, model, options, etc... as without that your thread be a hugh waste and insult to Zen who has a sticky at the top of the garage to tell others what they need to include in their post.



Re-Stickied by popular demand.

When you post a question about your car, please post the following as well to help people make better recommendations and reduce the number of follow-up questions that we have to ask:

- Year
- Make
- Model
- Engine (if there are different engines available)
- Trim Level
- Modifications (if any)
- Mileage

By giving this information along with your question, we can tailor the response to your car and give you more accurate advice.

Thanks!

ZV
 

Saga

Banned
Feb 18, 2005
2,718
1
0
I find it very difficult to believe that information means anything if you don't have the reading comprehension to read my post and relate it to <3 year old GM truck.

Next, find me any factual information showing that the "Auto" transmission setting does NOT mean the EXACT same thing in any <3 year old GM truck produced on the planet before bitching about needing more information.

P.S. Get over yourself.