Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular
brake, set the parking brake.
• To check the parking brake’s holding ability:
With the engine running and transmission in
NEUTRAL (N), slowly remove foot pressure
from the regular brake pedal. Do this until the
vehicle is held by the parking brake only.
• To check the PARK (P) mechanism’s holding
ability: With the engine running, shift to
PARK (P). Then release the parking brake
followed by the regular brake.
Contact your GM Goodwrench
®
dealer if service is
required.
Underbody Flushing Service
At least every spring, use plain water to flush any
corrosive materials from the underbody. Take
care to clean thoroughly any areas where mud and
other debris can collect.
Recommended Fluids and
Lubricants
Fluids and lubricants identified below by name,
part number, or specification may be obtained from
your dealer.
Usage Fluid/Lubricant
Engine Oil
The engine requires a special
engine oil meeting GM Standard
GM4718M. Oils meeting this
standard may be identified as
synthetic, and should also be
identified with the American
Petroleum Institute (API) Certified
for Gasoline Engines starburst
symbol. However, not all synthetic
API oils with the starburst symbol
will meet this GM standard. You
should look for and use only an oil
that meets GM Standard GM4718M.
GM Goodwrench
®
oil meets all the
requirements for your vehicle. For
the proper viscosity, see Engine Oil
on page 377.
Engine Cooling
System
50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
Coolant. See Engine Coolant on
page 385.
473
