Pontiac 2008 G6 - Manual (Page 265)

Then, without shutting off the engine, follow these steps:
The transmission fluid
dipstick handle has this
symbol on it, and is located
near the rear of the engine
compartment. See Engine
Compartment Overview on
page 5-14 for more
information on location.
1. Remove the dipstick and wipe it with a clean rag or
paper towel.
2. Reinstall it back in all the way, wait three seconds
and then pull it back out again.
3. Check both sides of the dipstick, and read the lower
level. The fluid level must be within the
crosshatched area.
4. If the fluid level is in the acceptable range, reinstall
the dipstick back in all the way.
How to Add Automatic
Transmission Fluid
Refer to the Maintenance Schedule to determine what
kind of transmission fluid to use. See Recommended
Fluids and Lubricants on page 6-13.
If the fluid level is low, add only enough of the proper
fluid to bring the level into the crosshatched area on the
dipstick.
1. Remove the dipstick.
2. Using a long-neck funnel, add enough fluid at the
dipstick hole to bring it to the proper level.
It does not take much fluid, generally less than a
half pint (0.24 L). Do not overfill.
Notice: Use of the incorrect automatic transmission
fluid may damage your vehicle, and the damages
may not be covered by your warranty. Always
use the automatic transmission fluid listed in
Recommended Fluids and Lubricants on page 6-13.
3. After adding fluid, recheck the fluid level as
described under “How to Check Automatic
Transmission Fluid,” earlier in this section.
4. When the correct fluid level is obtained, reinstall the
dipstick back in all the way.
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