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What does the SET button under dash do?

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Old 10-15-2009, 05:11 PM   #1
hotbrass
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Default What does the SET button under dash do?

What does the button under the drivers side of the dash marked "SET" do? I pushed it and nothing happened. Not that I was expecting anything. Just curious what it sets.
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Old 10-15-2009, 05:15 PM   #2
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Default Re: What does the SET button under dash do?

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What does the button under the drivers side of the dash marked "SET" do? I pushed it and nothing happened. Not that I was expecting anything. Just curious what it sets.
Are you referring to the reset button for the Tire Pressure Monitoring System, much lower than the steering wheel?
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Old 10-15-2009, 05:20 PM   #3
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Default Re: What does the SET button under dash do?

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Originally Posted by hotbrass View Post
What does the button under the drivers side of the dash marked "SET" do? I pushed it and nothing happened. Not that I was expecting anything. Just curious what it sets.
There is a button under the dash, near the steering column which is used to reset/calibrate the tire pressure. More description of what it does can be found in your manual.
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Old 10-15-2009, 05:57 PM   #4
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Default Re: What does the SET button under dash do?

This "RESET" button is important if you modify your tire pressures.

For example, if you were to increase your tire pressures from, let's say 35psi front and 34psi rear, to 41psi front and 40psi rear, that would mean an increase in pressures of 6psi each tire.

To the best of my memory, the TPMS warning light/symbol are triggered at a pressure of 7psi lower than that of the tires memorized pressure.

If this were the case, at your current NEW tire pressures (each tire having been raised by 6psi), the next time you started your car, you'd get a Low Pressure warning, because the TPMS was set to alarm at 28psi front and 26psi rear, and your NEW values are now 13psi above your current set Low Pressure warning value, therefore, you'll get a WARNING!

What the "SET" button does, is to teach the system a new alarm point whenever pressures are changed.

Best I remember, set the NEW cold tire pressures, turn the car OFF, turn it back ON, Press the "SET" button and hold it for 3 seconds-I believe until the TPMS light begins to blink, let up the button and turn OFF the Power...your NEW tire pressure warning is now set (Initialized) to alarm at 34psi instead of 28psi.

David (aka Blind guy)
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Old 10-15-2009, 07:44 PM   #5
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Default Re: What does the SET button under dash do?

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Originally Posted by hotbrass View Post
What does the button under the drivers side of the dash marked "SET" do? I pushed it and nothing happened. Not that I was expecting anything. Just curious what it sets.
LOL, I'd be careful pushing buttons and THEN asking what they do
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Old 10-15-2009, 07:49 PM   #6
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Default Re: What does the SET button under dash do?

Well David's got it all sorted out!
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Old 10-15-2009, 08:13 PM   #7
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Default Re: What does the SET button under dash do?

Thanks everyone.

Great information and everyone is very helpful here!
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Old 10-15-2009, 10:45 PM   #8
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Default Re: What does the SET button under dash do?

It lights up a message on the MFD that says "NEVER PUSH THE SET BUTTON!"

Tom
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Old 10-16-2009, 07:51 AM   #9
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Default Re: What does the SET button under dash do?

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Originally Posted by hotbrass View Post
What does the button under the drivers side of the dash marked "SET" do? I pushed it and nothing happened. Not that I was expecting anything. Just curious what it sets.
Thataway... just go about pressing buttons with no clue as to purpose. Watch out for that ejection seat button. If you don't know where that's located, check out your owner's manual.
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Old 10-16-2009, 09:24 AM   #10
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Default Re: What does the SET button under dash do?

Name a button that you can push with the Prius off that will do damage to the Prius?

Now name a button that you can push with the Prius on that will do damage to the Prius?
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