2007 PONTIAC GRAND PRIX ECO mode

Overheated Engine Protection
Operating Mode
The overheated engine protection operating mode
allows the vehicle to be driven to a safe place in an
emergency situation. If an overheated engine
condition exists, this protection mode alternates
ring groups of cylinders to help prevent engine
damage. In this mode, there will be a signicant
loss in power and engine performance. The engine
coolant temperature gage indicator will move to the
shaded area, and the engine coolant temperature
warning light will come on, showing that an
overheated engine condition exists. Driving
extended miles (km) and/or towing a trailer in the
overheated engine protection mode should be
avoided.
Notice:After driving in the overheated engine
protection operating mode, to avoid engine
damage, allow the engine to cool before
attempting any repair. The engine oil will be
severely degraded. Repair the cause of coolant
loss, change the oil and reset the oil life system.
SeeEngine Oil on page 350.
Cooling System
When you decide it is safe to lift the hood, here is
what you will see:
A. Coolant Recovery Tank
B. Electric Engine Cooling Fan(s)
C. Pressure Cap
3800 V6 Supercharged Engine shown,
3800 V6 Engine similar
366

When the engine is cold, the coolant level should
be at or above the cold ll line on the coolant
recovery tank. To check the coolant level, look for
the cold ll line on the side of the coolant
recovery tank that faces the engine. If the level is
not correct, there may be a leak at the pressure
cap or in the radiator hoses, heater hoses,
radiator, water pump, or somewhere else in the
cooling system.
{CAUTION:
Heater and radiator hoses, and other
engine parts, can be very hot. Do not
touch them. If you do, you can be burned.
Do not run the engine if there is a leak. If
you run the engine, it could lose all
coolant. That could cause an engine re,
and you could be burned. Get any leak
xed before you drive the vehicle.If there seems to be no leak, with the engine on,
check to see if the electric engine cooling
fan(s) are running. If the engine is overheating,
the fan(s) should be running. If the fan(s) are not
running, the vehicle needs service.
Notice:Engine damage from running your
engine without coolant is not covered by your
warranty. SeeOverheated Engine Protection
Operating Mode on page 366for information on
driving to a safe place in an emergency.
Notice:Using coolant other than DEX-COOL
®
may cause premature engine, heater core,
or radiator corrosion. In addition, the engine
coolant could require changing sooner, at
30,000 miles (50 000 km) or 24 months,
whichever occurs rst. Any repairs would not
be covered by your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your
vehicle.
368

GAWR RR:Gross Axle Weight Rating for the rear
axle. SeeLoading Your Vehicle on page 317.
Intended Outboard Sidewall:The side of
an asymmetrical tire, that must always face
outward when mounted on a vehicle.
Kilopascal (kPa):The metric unit for air pressure.
Light Truck (LT-Metric) Tire:A tire used on
light duty trucks and some multipurpose passenger
vehicles.
Load Index:An assigned number ranging
from 1 to 279 that corresponds to the load
carrying capacity of a tire.
Maximum Ination Pressure:The maximum air
pressure to which a cold tire may be inated.
The maximum air pressure is molded onto
the sidewall.
Maximum Load Rating:The load rating for a tire
at the maximum permissible ination pressure
for that tire.
Maximum Loaded Vehicle Weight:The sum of
curb weight, accessory weight, vehicle capacity
weight, and production options weight.Normal Occupant Weight:The number of
occupants a vehicle is designed to seat multiplied
by 150 lbs (68 kg). SeeLoading Your Vehicle
on page 317.
Occupant Distribution:Designated seating
positions.
Outward Facing Sidewall:The side of an
asymmetrical tire that has a particular side that
faces outward when mounted on a vehicle.
The side of the tire that contains a whitewall, bears
white lettering, or bears manufacturer, brand,
and/or model name molding that is higher
or deeper than the same moldings on the other
sidewall of the tire.
Passenger (P-Metric) Tire:A tire used on
passenger cars and some light duty trucks and
multipurpose vehicles.
Recommended Ination Pressure:Vehicle
manufacturer’s recommended tire ination
pressure as shown on the tire placard. See
Ination - Tire Pressure on page 408andLoading
Your Vehicle on page 317.
406

TPMS Sensor Identication Codes
Each TPMS sensor has a unique identication
code. Any time you replace one or more of
the TPMS sensors or rotate the vehicle’s tires,
the identication codes need to be matched to
the new tire/wheel position. The sensors are
matched, to the tire/wheel positions, in the
following order: driver side front tire, passenger
side front tire, passenger side rear tire, and driver
side rear tire using a TPMS diagnostic tool.
See your dealer for service.
The TPMS sensors may also be matched to each
tire/wheel position by increasing or decreasing
the tire’s air pressure. When increasing the tire’s
pressure, do not exceed the maximum ination
pressure indicated on the tire’s sidewall.
You have two minutes to match each tire and
wheel position. If it takes longer than two minutes
to match any tire and wheel position, the
matching process stops and you need to
start over.The TPMS matching process is outlined below:
1. Set the parking brake.
2. Turn the ignition switch to RUN with the
engine off.
3. Press the Remote Keyless Entry (RKE)
transmitter’s Lock and Unlock buttons at
the same time for approximately ve seconds.
The horn sounds twice to signal the receiver
is in relearn mode and the TPMS sensor
matching process can begin.
4. Start with the driver’s side front tire.
5. Remove the valve cap from the tire’s valve
stem. Activate the TPMS sensor by
increasing or decreasing the tire’s air
pressure for ten seconds, or until a horn
chirp sounds. The horn chirp, which
may take up to 30 seconds to sound,
conrms that the sensor identication code
has been matched to the tire/wheel
position. To decrease the tire’s air-pressure
use the pointed end of the valve cap,
a pencil-style air pressure gage, or a key.
412

Tire Inspection and Rotation
Tire rotation is not recommended if your vehicle is
a GXP model equipped with P255/45R18 size
tires on the front wheels and P225/50R18 size tires
on the rear wheels. Different tire sizes front to
rear should not be rotated.
Tire rotation is recommended if the original
equipment tires installed on your vehicle are
of the same size and type on all four tire/wheel
positions. Original equipment tires of the
same size and type should be rotated every
5,000 to 8,000 miles (8 000 to 13 000 km).
Any time you notice unusual wear, rotate your
vehicle’s tires as soon as possible and check the
wheel alignment. Also check for damaged tires
or wheels. SeeWhen It Is Time for New Tires on
page 415andWheel Replacement on page 419
for more information.
The purpose of regular rotation is to achieve more
uniform wear for all tires on the vehicle. The
rst rotation is the most important. SeeScheduled
Maintenance on page 473for scheduled rotation
intervals.The correct rotation pattern shown here is only for
non-GXP tires.
Do not include the compact spare tire, if equipped,
in your vehicle’s tire rotation.
After the tires have been rotated, adjust the front
and rear ination pressures as shown on the Tire
and Loading Information label, and reset the Tire
Pressure Monitor System. SeeTire Pressure
Monitor System on page 409for additional
information.
Rotation Pattern for Non-GXP Tires Only
414

Vehicle Data Collection and
Event Data Recorders
Your vehicle, like other modern motor vehicles, has
a number of sophisticated computer systems that
monitor and control several aspects of the vehicle’s
performance. Your vehicle uses on-board vehicle
computers to monitor emission control components
to optimize fuel economy, to monitor conditions for
airbag deployment and, if so equipped, to provide
anti-lock braking and to help the driver control the
vehicle in difficult driving situations. Some
information may be stored during regular operations
to facilitate repair of detected malfunctions; other
information is stored only in a crash event by
computer systems, such as those commonly called
Event Data Recorders (EDR).
In a crash event, computer systems, such as the
airbag Sensing and Diagnostic Module (SDM) in
your vehicle may record information about the
condition of the vehicle and how it was operated,
such as data related to engine speed, brake
application, throttle position, vehicle speed, safety
belt usage, airbag readiness, airbag performance,
and the severity of a collision. If your vehicle is
equipped with StabiliTrak
®, steering performance,including yaw rate, steering wheel angle, and lateral
acceleration, is also recorded. This information has
been used to improve vehicle crash performance
and may be used to improve crash performance of
future vehicles and driving safety. Unlike the data
recorders on many airplanes, these on-board
systems do not record sounds, such as
conversation of vehicle occupants.
To read this information, special equipment is
needed and access to the vehicle or the device
that stores the data is required. GM will not access
information about a crash event or share it with
others other than:
with the consent of the vehicle owner or, if the
vehicle is leased, with the consent of the
lessee,
in response to an official request of police or
similar government office,
as part of GM’s defense of litigation through
the discovery process, or
as required by law.
504

Driving
At Night................................................... 302
City.......................................................... 306
Defensive................................................. 284
Drunken................................................... 285
Freeway................................................... 307
Hill and Mountain Roads.......................... 309
In Rain and on Wet Roads...................... 303
Rocking Your Vehicle to Get it Out.......... 316
Winter...................................................... 311
Dual Automatic Climate Control System....... 162
E
Electric Power Management........................ 150
Electrical System
Add-On Equipment................................... 459
Fuses and Circuit Breakers...................... 460
Headlamp Wiring..................................... 459
Instrument Panel Fuse Block................... 460
Power Windows and Other Power
Options................................................. 459
Underhood Fuse Block............................. 462
Windshield Wiper Fuses........................... 459Engine
Air Cleaner/Filter...................................... 355
Battery..................................................... 381
Check and Service Engine Soon Light..... 180
Coolant.................................................... 360
Coolant Heater......................................... 108
Coolant Temperature Gage...................... 180
Coolant Temperature Warning Light.......... 179
Drive Belt Routing.................................... 485
Engine Compartment Overview ................ 346
Exhaust................................................... 119
Oil ........................................................... 350
Oil Life System........................................ 353
Overheated Protection Operating Mode.... 366
Overheating............................................. 364
Starting.................................................... 107
Supercharger Oil...................................... 355
Enhanced Traction System (ETS) ................ 293
Warning Light........................................... 179
Entry Lighting.............................................. 148
Event Data Recorders (EDR)...................... 504
Extender, Safety Belt..................................... 38
Exterior Lamps............................................ 144
Exterior Lighting Battery Saver.................... 146
517

M
Maintenance Schedule
Additional Required Services.................... 476
At Each Fuel Fill...................................... 479
At Least Once a Month............................ 480
At Least Once a Year.............................. 480
Introduction.............................................. 470
Maintenance Footnotes............................ 477
Maintenance Record................................ 487
Maintenance Requirements...................... 470
Normal Maintenance Replacement Parts.... 484
Owner Checks and Services.................... 479
Recommended Fluids and Lubricants....... 483
Scheduled Maintenance........................... 473
Using....................................................... 471
Your Vehicle and the Environment............ 471
Malfunction Indicator Light........................... 180
Manual Passenger Seat.................................. 8
Message
DIC Warnings and Messages................... 200
Mirrors
Manual Rearview Mirror with OnStar
®...... 121
Outside Convex Mirror............................. 122
Outside Power Mirrors............................. 121
MP3 ............................................................ 269
MyGMLink.com............................................ 495
N
New Vehicle Break-In.................................. 105
Normal Maintenance Replacement Parts..... 484
O
Odometer.................................................... 170
Off-Road Recovery...................................... 299
Oil
Engine..................................................... 350
Pressure Light.......................................... 184
Supercharger, Engine............................... 355
Oil, Engine Oil Life System......................... 353
Older Children, Restraints............................. 39
Online Owner Center................................... 495
OnStar
®System, see OnStar®Manual........ 122
Other Warning Devices................................ 134
Outlet Adjustment........................................ 166
Outlet(s), Accessory Power.......................... 156
Outside
Convex Mirror.......................................... 122
Power Mirrors.......................................... 121
Overhead Console Reading Lamps............. 149
Overheated Engine Protection
Operating Mode....................................... 366
Owner Checks and Services....................... 479
Owners, Canadian.......................................... 3
521