GMC 2003 GMT560 T-Series, Owner'S Manual, Page: 172 / 284

How to Add Fluid
Here’s how to add fluid. Refer to the Maintenance
Schedule to determine the proper fluid to use. See
Part C: Recommended Fluids and Lubricants on
page 6-27.
1. Remove the filler plug.
2. Add fluid at the filler plug hole. Add only enough
fluid to bring the fluid level up to the bottom of the
fill opening.
3. Install the filler plug. Be sure the plug is fully
seated.
Hydraulic Clutch
It is not necessary to regularly check clutch fluid unless
you suspect there is a leak in the system. Adding
fluid won’t correct a leak.
A fluid loss in this system could indicate a problem
Have the system inspected and repaired.
When to Check and What to Use
The hydraulic clutch fluid
reservoir is located behind
the front panel on the
driver’s side of the vehicle.
Refer to the maintenance schedule to determine how
often you should check the fluid level in your clutch
master cylinder reservoir and for the proper fluid. See
“Owner Checks and Services” and “Recommended
Fluids and Lubricants” in the Index.
How to Check and Add Fluid
The proper fluid should be added if the fluid level is not
between the MAX and MIN marks.
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