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When accelerating the vehicle from
a stop in snowy and icy conditions,
1st, 2nd or 3rd gear starts can
be selected from a standing start.
This is useful for gentle acceleration
on slippery surfaces.
To return to Normal Shift mode,
slide the shift lever over from
the right quadrant to the left into
D (Drive). A Normal Shift message
will be displayed in the DIC.
Normal Shift Mode is recommended
for normal or freeway driving, as
it provides optimum fuel economy.
Powertrain Braking
For vehicles with a 6 speed
automatic transmission, there is
an additional feature known
as Powertrain Braking. When driving
on steep descents where frequent
braking is required, the vehicle
will automatically downshift to
provide engine braking assistance.
This feature also reduces brake
temperatures and wear.
Downshifting will only occur when
the driver’s foot is applied to the
brake. Driver Shift Control can
be switched on to override the
feature and gain complete control
of shifts if desired.
Parking Brake
To set the parking brake, pull up on
the parking brake handle. If the
ignition is in the ON/RUN position,
the brake system warning light
will come on. See Brake System
Warning Light on page 4-16.
To release the parking brake:
1. Hold the brake pedal down.
2. Pull the parking brake handle up
until you can press the release
button.
3. Hold the release button in as you
move the brake handle all the
way down.
Notice: Driving with the parking
brake on can overheat the
brake system and cause
premature wear or damage to
brake system parts. Make
sure that the parking brake is
fully released and the brake
warning light is off before driving.
Driving with the park brake applied
will cause a warning chime to
sound and the Park Brake message
to appear in the DIC. The message
will remain on until:
• the park brake is released
• the vehicle comes to a stop.
If you are towing a trailer and you
are parking on a hill, see Towing a
Trailer on page 9-85.
Driving and Operating 8-9
2008 - Pontiac G8 Owner Manual