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 the transmission
in N (Neutral), slowly remove foot pressure from
the regular brake pedal. Do this until the vehicle
is held by the parking brake only.
? To check the P (Park) mechanism?s holding ability:
With the engine running, shift to P (Park). Then
release the parking brake followed by the regular
Contact your dealer/retailer if service is required.
Underbody Flushing Service
At least every spring, use plain water to ?ush any
corrosive materials from the underbody. Take care
to clean thoroughly any areas where mud and other
debris can collect.
Recommended Fluids and
Fluids and lubricants identi?ed below by name, part
number, or speci?cation can be obtained from your
The engine requires a special
engine oil meeting GM Standard
GM4718M. Oils meeting this
standard can be identi?ed as
synthetic, and should also be
identi?ed with the American
Petroleum Institute (API) Certi?ed
for Gasoline Engines starburst
symbol. However, not all synthetic
API oils with the starburst symbol
will meet this GM standard.
Look for and use only oil that meets
GM Standard GM4718M. For the
proper viscosity, see Engine Oil
on page 5-13.
50/50 mixture of clean, drinkable
water and use only DEX-COOL
Coolant. See Engine Coolant on