Underbody flushing service – GMC 2003 Envoy User Manual
Page 415
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Parking Brake and Automatic
Transmission Park (P) Mechanism
Check
When you are doin^ this check, your vehtcte
could iK^in to move. You or others could be
Injured and property could be damagedn Make
sure there is room in front
g
1 your vehicle
in
case it begins to roll. Be reedy to apply the
regular brake at once should the vehicle begirt
to move.
Perk on e feidy stesp tiill, vvilh the vehii^le lacing
downhill. Keeping your fool on the regular brake, set me
parking brake.
• To check the parking brake's holding ability;
With the engine running and Iransmibsion in
NEUTRAL {N). slowly remove fool pressuna from
the regular brake pedal. Do this unlil the vehicle is
held by thfl parking brake only,
• To check the PARK (PJ mechanism's holding
abifity: With the engine running, shift (o PARK fP).
Then release
I
he parking brake followed by the
regular brake.
Underbody Flushing Service
At least every spring, use plain water lo flush any
corrosive materials from the underbocty. Take care (o
clean thoroughly any areas where mud and gthar dsbris
can collect.
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