
If the temperature overheat gauge is no longer in the
overheat zone or an overheat warning no longer
displays, the vehicle can be driven. Continue to drive
the vehicle slow for about 10 minutes. Keep a safe
vehicle distance from the car in front of you. If the
warning does not come back on, continue to drive
normally.
If the warning continues, pull over, stop, and park the
vehicle right away.
If there is no sign of steam, idle the engine for
three minutes while parked. If the warning is still
displayed, turn off the engine until it cools down. Also,
see“Overheated Engine Protection Operating Mode”
next in this section.Overheated Engine Protection
Operating Mode
If an overheated engine condition exists and the
message ENGINE OVERHEATED STOP ENGINE
is displayed, an overheat protection mode which
alternates firing groups of cylinders helps prevent
engine damage. In this mode, you will notice a loss in
power and engine performance. This operating mode
allows the vehicle to be driven to a safe place in an
emergency. Driving extended miles (km) and/or towing
a trailer in the overheat 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. See Engine Oil
on
page 6‑17.
6-37

First Engine Oil Change After Every
40 000 km/25,000 Miles
.Fuel system inspection for damage or leaks.
First Engine Oil Change After Every
80 000 km/50,000 Miles
.Engine air cleaner filter replacement. SeeEngine
Air Cleaner/Filter on page 6‑21.
.Automatic transmission fluid change (severe
service) for vehicles mainly driven in heavy city
traffic in hot weather, in hilly or mountainous
terrain, when frequently towing a trailer, or used for
taxi, police, or delivery service. See Automatic
Transmission Fluid on page 6‑23.
First Engine Oil Change After Every
160 000 km/100,000 Miles
.Automatic transmission fluid change (normal
service). See Automatic Transmission Fluidon
page 6‑23.
.Spark plug replacement. An Emission Control
Service.
First Engine Oil Change After Every
240 000 km/150,000 Miles
.Engine cooling system drain, flush, and refill,
cooling system and cap pressure check, and
cleaning of outside of radiator and air conditioning
condenser (or every 5 years, whichever occurs
first). See Engine Coolant (4.6L Engine)
on
page 6‑27or Engine Coolant (3.9L Engine)on
page 6‑31. An Emission Control Service.
.Engine accessory drive belt inspection for fraying,
excessive cracks, or obvious damage and
replacement, if needed. An Emission Control
Service.
7-6

Services Provided
.Emergency Fuel Delivery:Delivery of enough
fuel for the vehicle to get to the nearest service
station.
.Lock‐Out Service: Service is provided to unlock
the vehicle if you are locked out. A remote unlock
may be available if you have OnStar
®. For security
reasons, the driver must present identification
before this service is given.
.Emergency Tow From a Public Road or
Highway: Tow to the nearest Buick dealer for
warranty service, or if the vehicle was in a crash
and cannot be driven. Assistance is also given
when the vehicle is stuck in sand, mud, or snow.
.Flat Tire Change: Service is provided to change
a flat tire with the spare tire. The spare tire,
if equipped, must be in good condition and
properly inflated. It is the owner's responsibility for
the repair or replacement of the tire if it is not
covered by the warranty.
.Battery Jump Start: Service is provided to jump
start a dead battery.
.Trip Interruption Benefits and Assistance:
If your trip is interrupted due to a warranty failure,
incidental expenses may be reimbursed during the
5 years/100,000 miles (160 000 km) Powertrain
warranty period. Items considered are hotel,
meals, and rental car.
Services Not Included in Roadside
Assistance
.Impound towing caused by violation of any laws.
.Legal fines.
.Mounting, dismounting or changing of snow tires,
chains, or other traction devices.
.Towing or services for vehicles driven on a
non-public road or highway.
8-9

Insuring Your Vehicle
Protect your investment in your GM vehicle with
comprehensive and collision insurance coverage. There
are significant differences in the quality of coverage
afforded by various insurance policy terms. Many
insurance policies provide reduced protection to your
GM vehicle by limiting compensation for damage
repairs by using aftermarket collision parts. Some
insurance companies will not specify aftermarket
collision parts. When purchasing insurance, we
recommend that you assure your vehicle will be
repaired with GM original equipment collision parts.
If such insurance coverage is not available from your
current insurance carrier, consider switching to another
insurance carrier.
If your vehicle is leased, the leasing company may
require you to have insurance that assures repairs with
Genuine GM Original Equipment Manufacturer (OEM)
parts or Genuine Manufacturer replacement parts. Read
your lease carefully, as you may be charged at the end
of your lease for poor quality repairs.
If a Crash Occurs
Here is what to do if you are involved in a crash.
.Check to make sure that you are all right. If you
are uninjured, make sure that no one else in your
vehicle, or the other vehicle, is injured.
.If there has been an injury, call emergency
services for help. Do not leave the scene of a
crash until all matters have been taken care of.
Move your vehicle only if its position puts you in
danger or you are instructed to move it by a police
officer.
.Give only the necessary and requested information
to police and other parties involved in the crash.
Do not discuss your personal condition, mental
frame of mind, or anything unrelated to the crash.
This will help guard against post-crash legal action.
.If you need roadside assistance, call GM Roadside
Assistance. SeeRoadside Assistance Programon
page 8‑8for more information.
.If your vehicle cannot be driven, know where the
towing service will be taking it. Get a card from the
tow truck operator or write down the driver's name,
the service's name, and the phone number.
.Remove any valuables from your vehicle before it
is towed away. Make sure this includes your
insurance information and registration if you keep
these items in your vehicle.
8-14

PhoneBluetooth®. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-93
Power Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-110
Lumbar Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Retained Accessory (RAP) . . . . . . . . . . . . . . . . . . . . . . . 3-21
Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Steering Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-38
Tilt Wheel and Telescopic Steering Column . . . . . . . . 4-4
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
Pregnancy, Using Safety Belts . . . . . . . . . . . . . . . . . . . . . 2-31
Privacy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-19 Navigation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-20
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-20
Radio Frequency Identification (RFID) . . . . . . . . . . . . 8-20
Program Courtesy Transportation . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
Programmable Automatic Door Locks . . . . . . . . . . . . . 3-10
Proposition 65 Warning, California . . . . . . . . . . . . . . . . . . .6-4R
Radio Frequency Identification (RFID) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-20
Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-20
Radio(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-77
Radios Navigation/Radio System, see Navigation
Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-93
Reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-106
Setting the Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-75
Theft-Deterrent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-104
Rainsense™ II Wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
Rear Door Security Locks . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Rear Seat Armrest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-51
Rear Seat Pass-Through Door . . . . . . . . . . . . . . . . . . . . . 2-12
Rearview Mirrors Automatic Dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33
Reclining Seatbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Recommended Fluids and Lubricants . . . . . . . . . . . . . . .7-9
Recreational Vehicle Towing . . . . . . . . . . . . . . . . . . . . . . . 5-24
i - 11

TowingRecreational Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24
Towing a Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-27
Your Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24
Traction Control System (TCS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Control System Warning Light . . . . . . . . . . . . . . . . . . . . 4-38
Magnetic Ride Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
StabiliTrak
®System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Transmission Fluid, Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23
Transmission Operation, Automatic . . . . . . . . . . . . . . . . 3-24
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . 8-11
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . .4-5
Turn Signal/Multifunction Lever . . . . . . . . . . . . . . . . . . . . . .4-5
U
Ultrasonic Rear Parking Assist (URPA) . . . . . . . . . . . . 3-37
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . . 6-76
Universal Home Remote System . . . . . . . . . . . . . . . . . . 3-44 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44
V
VehicleControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19
Remote Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Running While Parked . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Vehicle Customization, DIC . . . . . . . . . . . . . . . . . . . . . . . . 4-65
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . 8-19
Vehicle Identification Number (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-109
Service Parts Identification Label . . . . . . . . . . . . . . . .6-109
Ventilated Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Ventilation Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
i - 15