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TTA#219
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1,587 Posts
Discussion Starter · #1 ·
Can anyone explain how this thing works?I have a Key in the area where the ashtray would be,The Guy I got the car from said he never messed with it.But I would like to know what it does and how to use it.

Any help is appreciated.

Thanks,Shawn
 

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Its In Stock
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203 Posts
Shawn,

The key is for the Tach recall function. There are two positions the key can be in;

Position 1) Functions the tach in a normal tach mode.
Position 2) With the ignition on and/or engine running this will display the highest RPM recorded during a run.

Upon turning off the ignition the memory will erase. God only knows why Buick requested a key and not a switch from Autometer. My only guess would be for security purposes.

Vince
 

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TTA#219
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1,587 Posts
Discussion Starter · #3 ·
Thanks,

I will have to check it out later to see if it actually works.
 
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