Watch this video. I messed around with the settings and changed the name to just Trans, and it seemed to work.

 

Didn't seem to help me. I will play with it some more tomorrow.

 

The scan tool apps such as the one in this thread are pretty cool even if you've got tuning software yourself such as Hptuners or Efilive these are still nice handy little apps to have. For I Phone users the DashCommand scan tool app is pretty decent as well.

 

I have confirmed that the trans temp is accurate with my Flashscan. Here is what worked for me on my 99 Silverado.
Go to:
Menu
Settings
Manage Extra PID's/Sensors
Transmission Fluid Temperature (GM Method 1)
Select edit, and make sure all values and names match this.

The go to:
Real time data
Add display
Transmission Fluid Temperature (GM Method 1) should now be highlighted in green
Select it

Here is a screenshot of what mine is like working.

 

It now works great! I am very excited. I can't wait to throw a trailer behind the truck tomorrow and make sure it doesn't get hot!

 

Good to hear.

 

Very cool on the trans temp!

 

anybody know if this works on an Iphone??

 

Probably not because the iphone sucks. haha

I thought someone posted about an iphone app nearly identical.Quickly looked in this thread and didn't see it. Not sure where I saw it.

 

Dashcommand in post #23. Tks Klug.