Automatic Transmission Fluid - Hummer H2 2010 Owner's Manual

6. Reinstall the cover and tighten the screws.
7. Reset the air filter restriction indicator, if equipped,
by pressing the top button on the indicator.
If the vehicle is not equipped with the air filter
restriction indicator, refer to the Maintenance
Schedule to determine when to replace the engine
air cleaner/filter. See Scheduled Maintenance on
page 7 3.
WARNING:
Operating the engine with the air cleaner/filter off
can cause you or others to be burned. The air
cleaner not only cleans the air; it helps to stop
flames if the engine backfires. Use caution when
working on the engine and do not drive with the
air cleaner/filter off.
Notice: If the air cleaner/filter is off, dirt can easily
get into the engine, which could damage it. Always
have the air cleaner/filter in place when you are
driving.

Automatic Transmission Fluid

When to Check and Change Automatic
Transmission Fluid
It is usually not necessary to check the transmission
fluid level. The only reason for fluid loss is a
transmission leak or overheating the transmission.
If you suspect a small leak, then use the following
checking procedures to check the fluid level. However,
if there is a large leak, then it may be necessary to have
the vehicle towed to a dealer service department and
have it repaired before driving the vehicle further.
Notice: Use of the incorrect automatic transmission
fluid may damage the vehicle, and the damages may
not be covered by the vehicle's warranty. Always
use the automatic transmission fluid listed in
Recommended Fluids and Lubricants on page 7 10.
Change the fluid and filter at the intervals listed in the
Maintenance Schedule. See Scheduled Maintenance
on page 7 3. Be sure to use the transmission fluid
listed in Recommended Fluids and Lubricants on
page 7 10.
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