PONTIAC GRAND PRIX 2005 Owners Manual
Manufacturer: PONTIAC, Model Year: 2005, Model line: GRAND PRIX, Model: PONTIAC GRAND PRIX 2005Pages: 444, PDF Size: 2.6 MB
Page 91 of 444

The vehicle will shift down to the next gear and have
more power.
Notice:If your vehicle seems to start up rather
slowly or not shift gears when you go faster, and
you continue to drive your vehicle that way, you
could damage the transaxle. Have your vehicle
serviced right away. You can drive in SECOND (2)
when you are driving less than 35 mph (55 km/h)
and AUTOMATIC OVERDRIVE (D) for higher speeds
until then.
THIRD (3):This position is also used for normal driving,
but it offers more power and lower fuel economy than
AUTOMATIC OVERDRIVE (D).
Here are some times THIRD (3) could be used instead
of AUTOMATIC OVERDRIVE (D):
When driving on hilly, winding roads.
When towing a trailer, so there is less shifting
between gears.
When going down a steep hill.
When driving in non-highway scenarios
(i.e. city streets, etc.).SECOND (2):This position gives the vehicle more
power but lower fuel economy than THIRD (3).
SECOND (2) can be used on hills. It can help control
the vehicle’s speed as it goes down steep mountain
roads, but then you would also want to use the brakes
off and on.
Notice:Driving in SECOND (2) for more than
25 miles (40 km) or at speeds over 55 mph (90 km/h)
may damage the transaxle. Also, shifting into
SECOND (2) at speeds above 65 mph (105 km/h) can
cause damage. Drive in THIRD (3) or AUTOMATIC
OVERDRIVE (D) instead of SECOND (2).
FIRST (1):This position gives the vehicle even more
power but lower fuel economy than SECOND (2). It can
be used on very steep hills, or in deep snow or mud.
If the shift lever is moved to FIRST (1), the transaxle will
not shift into rst gear until the vehicle is going slowly
enough.
Notice:Spinning the tires or holding the vehicle
in one place on a hill using only the accelerator
pedal may damage the transaxle. If you are stuck,
do not spin the tires. When stopping on a hill,
use the brakes to hold the vehicle in place.
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Page 92 of 444

Performance Shifting with TAP-Shift™
If the vehicle is equipped
with the 3800 V6
Supercharged engine,
it may have a console
gearshift with a
MANUAL (M) position.
The other gearshift positions available are
PARK (P), REVERSE (R), NEUTRAL (N) and
AUTOMATIC OVERDRIVE (D), and operate
as explained earlier in this section.While in the MANUAL (M) position, the paddles, located
on the steering wheel, can be used to up-shift or
down-shift the transaxle, under certain circumstances.
While in the MANUAL (M)
mode, push either paddle
once to up-shift to the
next gear. Pull either
paddle once to down-shift
to the next gear.
To fully use the system, select MANUAL (M) while
stopped, with the engine running. The vehicle will begin
moving in rst gear upon acceleration. For better
control in icy or slippery conditions, the vehicle may
start out in second gear, rather than rst gear.
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Page 93 of 444

The up-shift indicator light
on the instrument panel
cluster, or the up-shift
symbol on the Head-Up
Display (HUD), if equipped,
is given as a prompt to
use the TAP-Shift ™
paddle.
The up-shift indicator light will only appear in the
instrument panel cluster if the HUD is off or if the
vehicle does not have HUD.
This prompt to up-shift, as needed, will be given
throughout acceleration. If up-shifting does not occur
when prompted, the vehicle speed will be limited
to protect the engine.Press the accelerator while driving in the highest
gear (fourth gear) which is between 20 and 50 mph to
make the transaxle automatically down-shift. As
you’re speed gets closer to 50 mph, more effort will
be required to press the acclerator. At 50 mph, even
with the accelerator fully depressed, the transaxle
will always remain in the 4th gear. The transaxle will
also automatically down-shift as the vehicle decelerates
and comes to a stop.
When a paddle is pushed or pulled a chime will sound
when the vehicle cannot respond to a transaxle gear
change. The system will not allow either an up-shift or a
down-shift if the vehicle speed is too fast or too slow,
nor will it allow a start from THIRD (3) or higher gear.
The MANUAL (M) gear can also be selected while
the vehicle is already moving. The current transaxle
position will continue to be displayed on the Driver
Information Center (DIC) and HUD, if equipped.
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Page 94 of 444

Parking Brake
The parking brake is
located to the left of the
brake pedal near the
driver’s door. To set the
parking brake, hold
the regular brake pedal
down with the right
foot. Push down on the
parking brake pedal,
with the left foot.
To release the parking brake, hold the regular brake
pedal down with the right foot and push the parking
brake pedal with the left foot. When the left foot is lifted,
the parking brake pedal will lift to the released position.
A warning chime will sound if the parking brake is
set, the ignition is on, and the shift lever is not in
PARK (P) or NEUTRAL (N).The brake light will also appear on the instrument panel
cluster when the parking brake is set. It will stay on if
the parking brake does not release fully.
The PARKING BRAKE ON message will also appear in
the Driver Information Center (DIC) when the parking
brake is set.
Notice:Driving with the parking brake on can
overheat the brake system and cause premature
wear or damage to brake system parts. Verify that
the parking brake is fully released and the brake
warning light is off before driving.
If the vehicle is towing a trailer and parked on a hill,
seeTowing a Trailer on page 4-40. That section shows
what to do rst to keep the trailer from moving.
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