GMC 2006 Canyon - Manual (Page 300)

Hydraulic Clutch
The hydraulic clutch linkage in your vehicle is
self-adjusting. The clutch master cylinder reservoir is
filled with hydraulic clutch fluid.
The hydraulic clutch fluid
reservoir cap has this
symbol on it. See Engine
Compartment Overview
on page 5-12 for reservoir
location.
It is not necessary to regularly check clutch fluid unless
you suspect there is a leak in the system. Adding
fluid will not 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
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
Recommended Fluids and Lubricants on page 6-13.
5-24