Power Steering Fluid - GMC T-Series 2007 Owner's Manual

4. With the coolant surge tank pressure cap off,
start the engine and let it run until you can
feel the upper radiator hose getting hot.
Watch out for the engine cooling fan.
By this time, the coolant level inside the coolant
surge tank may be lower. If the level is lower,
add more of the proper mixture to the coolant
surge tank until the level reaches slightly above
the COLD FULL mark.
5. Then replace the pressure cap. Be sure the
pressure cap is hand-tight and fully seated.

Power Steering Fluid

See Scheduled Maintenance on page 295 to
determine when to check your power steering fluid.
How To Check Power Steering Fluid
Check your power steering fluid only when
the engine is warm. If the engine is not warm,
you probably will not get an accurate reading.
If your power steering fluid level is low,
this can cause the brake or service brake
soon warning lights to come on.
If the fluid level is
between the MIN
(Minimum) and MAX
(Maximum) marks,
you have enough. If you
need fluid, add only
enough of the proper
fluid to bring it into
view in the sight glass.
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