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Service and Maintenance 319
(3)Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
(4) Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water
can overcome the seals and
contaminate the transfer case fluid.
Contaminated fluid will decrease the
life of the transfer case and/or axles
and should be replaced.
(5) Or every five years, whichever
comes first. See Cooling
System 0246.
(6) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage;
replace, if needed.
(7) Replace brake fluid every five
years. See Brake Fluid 0254.

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320 Service and Maintenance
Maintenance Schedule
Additional Required
Services - Severe12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi
60 000 km/37,500 mi
72 000 km/45,000 mi
84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi
120 000 km/75,000 mi
132 000 km/82,500 mi
144 000 km/90,000 mi
156 000 km/97,500 mi
168 000 km/105,000 mi 180 000 km/112,500 mi
192 000 km/120,000 mi
204 000 km/127,500 mi
216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires and perform Required Services.
Check engine oil level and oil life percentage.
Change engine oil and filter, if needed.@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (1)@ @@@@@
Inspect evaporative control system. (2)@ @@
Replace engine air cleaner filter. (3)@@@
Change automatic transmission fluid.@@@
Change transfer case fluid, if equipped with
AWD. (4)@@@
Replace spark plugs. Inspect spark plug wires.@
Drain and fill engine cooling system. (5)@
Visually inspect accessory drive belts. (6)@
Replace brake fluid. (7)
Footnotes—Maintenance
Schedule Additional Required
Services - Severe
(1) Or every two years, whichever
comes first. More frequent
passenger compartment air filter
replacement may be needed if
driving in areas with heavy traffic, poor air quality, high dust levels,
or environmental allergens.
Passenger compartment air filter
replacement may also be needed if
there is reduced airflow, window
fogging, or odors. Your GM dealer
can help determine when to replace
the filter.
(2)
Visually check all fuel and vapor
lines and hoses for proper
attachment, connection, routing, and
condition.
(3) Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.

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Service and Maintenance 321
(4)Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water
can overcome the seals and
contaminate the transfer case fluid.
Contaminated fluid will decrease the
life of the transfer case and/or axles
and should be replaced.
(5) Or every five years, whichever
comes first. See Cooling
System 0246.
(6) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage;
replace, if needed.
(7) Replace brake fluid every five
years. See Brake Fluid 0254.Special Application
Services
.
Severe Commercial Use
Vehicles Only: Lubricate chassis
components every oil change.
. Have underbody flushing service
performed. See "Underbody
Maintenance" in Exterior
Care 0304.
Additional
Maintenance and Care
Your vehicle is an important
investment and caring for it properly
may help to avoid future costly
repairs. To maintain vehicle
performance, additional
maintenance services may be
required.
It is recommended that your dealer
perform these services —their
trained dealer technicians know
your vehicle best. Your dealer can
also perform a thorough
assessment with a multi-point
inspection to recommend when your
vehicle may need attention.
The following list is intended to
explain the services and conditions
to look for that may indicate
services are required.

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322 Service and Maintenance
Battery
The 12-volt battery supplies power
to start the engine and operate any
additional electrical accessories.
.To avoid break-down or failure to
start the vehicle, maintain a
battery with full cranking power.
. Trained dealer technicians have
the diagnostic equipment to test
the battery and ensure that the
connections and cables are
corrosion-free.
Belts
. Belts may need replacing if they
squeak or show signs of
cracking or splitting.
. Trained dealer technicians have
access to tools and equipment
to inspect the belts and
recommend adjustment or
replacement when necessary.
Brakes
Brakes stop the vehicle and are
crucial to safe driving. .
Signs of brake wear may include
chirping, grinding, or squealing
noises, or difficulty stopping.
. Trained dealer technicians have
access to tools and equipment
to inspect the brakes and
recommend quality parts
engineered for the vehicle.
Fluids
Proper fluid levels and approved
fluids protect the vehicle’s systems
and components. See
Recommended Fluids and
Lubricants 0324 for GM approved
fluids.
. Engine oil and windshield
washer fluid levels should be
checked at every fuel fill.
. Instrument cluster lights may
come on to indicate that fluids
may be low and need to be
filled.
Hoses
Hoses transport fluids and should
be regularly inspected to ensure
that there are no cracks or leaks. With a multi-point inspection, your
dealer can inspect the hoses and
advise if replacement is needed.
Lamps
Properly working headlamps,
taillamps, and brake lamps are
important to see and be seen on
the road.
.
Signs that the headlamps need
attention include dimming, failure
to light, cracking, or damage.
The brake lamps need to be
checked periodically to ensure
that they light when braking.
. With a multi-point inspection,
your dealer can check the lamps
and note any concerns.
Shocks and Struts
Shocks and struts help aid in control
for a smoother ride.
. Signs of wear may include
steering wheel vibration, bounce/
sway while braking, longer
stopping distance, or uneven
tire wear.

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324 Service and Maintenance
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
UsageFluid/Lubricant
Engine Oil Engine oil meeting the dexos1™ specification of the proper SAE viscosity
grade. ACDelco dexos1 Synthetic Blend is recommended. See Engine
Oil 0241.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL
®Coolant.
See Engine Coolant 0247.
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 19299818, in Canada 19299819).
Windshield Washer Automotive windshield washer fluid that meets regional freeze protection requirements.
Hydraulic Power Steering System DEXRON
®-VI Automatic Transmission Fluid.
Automatic Transmission DEXRON
®-VI Automatic Transmission Fluid.
Carrier Assembly –Differential (Rear
Drive Module) and Transfer Case (Power Transfer Unit) SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88900401, in
Canada 89021678).
Hood Latch Assembly, Secondary Latch, Pivots, Spring Anchor, and Release Pawl Lubriplate Lubricant Aerosol (GM Part No. 89021668, in
Canada 89021674) or lubricant meeting requirements of NLGI #2,
Category LB or GC-LB.
Key Lock Cylinders, Hood and Door Hinges Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Canada 10953474).

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Index 355
Armrest Storage . . . . . . . . . . . . . . . . . 98
Assistance Program,Roadside . . . . . . . . . . . . . . . . . . . . . . 334
Audio Theft-Deterrent Feature . . . . . . . 155
Audio Players CD . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
MP3 . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Automatic Dimming Mirrors . . . . . . . . . . . . . . . . 41
Door Locks . . . . . . . . . . . . . . . . . . . . . 33
Transmission . . . . . . . . . . . . . . . . . 207
Transmission Fluid . . . . . . . . . . . 244
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 208
Shift Lock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . 256
Auxiliary Devices . . . . . . . . . . . . . . . . . . . . . . . 167
Avoiding Untrusted Media Devices . . . . . . . . . . . . . . . . . . . . . . . 164
B
Battery
Load Management . . . . . . . . . . . . 152
Power Protection . . . . . . . . . . . . . 153 Battery (cont'd)
Voltage and Charging
Messages . . . . . . . . . . . . . . . . . . . 127
Battery - North America . . . . 255, 297
Blade Replacement, Wiper . . . . . 257
Bluetooth
Overview . . . . . . . . . . . . . . . . . . . . . 170
Brake System Warning Light . . . . . . . . .118
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 253 Antilock . . . . . . . . . . . . . . . . . . . . . . . 210
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 212
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Parking . . . . . . . . . . . . . . . . . . . . . . . .211
System Messages . . . . . . . . . . . . 127
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 190
Break-In, New Vehicle . . . . . . . . . . 199
Bulb Replacement . . . . . . . . . . . . . . 260 Headlamp Aiming . . . . . . . . . . . . . 258
Headlamps . . . . . . . . . . . . . . . . . . . 259
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . . . 259
License Plate Lamps . . . . . . . . . 259
Taillamps, Turn Signal, and
Stoplamps . . . . . . . . . . . . . . . . . . 259
Buying New Tires . . . . . . . . . . . . . . . 282
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 105
California Fuel Requirements . . . . . . . . . . . 225
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 237
California Proposition
65 Warning . . . . . . . . . .237, 255, 297
Camera
Rear Vision (RVC) . . . . . . . . . . . . 216
Canadian Vehicle Owners . . . . . . . . 2
Capacities and Specifications . . . . . . . . . . . . . . . . . 328
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 206
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . 34
Winter Driving . . . . . . . . . . . . . . . . 193
Cargo
Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Management System . . . . . . . . . . . 99
Tie-Downs . . . . . . . . . . . . . . . . . . . . . . 99
Caution, Danger, and Warning . . . . 2
CD Player . . . . . . . . . . . . . . . . . . . . . . 164
Center Console Storage . . . . . . . . . 98
Chains, Tire . . . . . . . . . . . . . . . . . . . . 286
Charging System Light . . . . . . . . . 115

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Index 357
Door (cont'd)Delayed Locking . . . . . . . . . . . . . . . . 33
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Power Locks . . . . . . . . . . . . . . . . . . . . 33
Drive Belt Routing, Engine . . . . . . 329
Drive Systems All-Wheel Drive . . . . . . . . . . 210, 256
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . 122
Driving Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 228
Defensive . . . . . . . . . . . . . . . . . . . . . 189
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 190
For Better Fuel Economy . . . . . . . 25
Hill and Mountain Roads . . . . . . 193
If the Vehicle is Stuck . . . . . . . . . 195
Loss of Control . . . . . . . . . . . . . . . 191
Off-Road Recovery . . . . . . . . . . . 191
Vehicle Load Limits . . . . . . . . . . . 195
Wet Roads . . . . . . . . . . . . . . . . . . . 192
Winter . . . . . . . . . . . . . . . . . . . . . . . . 193
Dual Automatic Climate
Control System . . . . . . . . . . . . . . . . 179E
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 235
Electrical System Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 261
Fuses and Circuit Breakers . . . 261
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 265
Overload . . . . . . . . . . . . . . . . . . . . . 261
Emergency OnStar
®. . . . . . . . . . . . . . . . . . . . . . 345
Engine Air Cleaner/Filter . . . . . . . . . . . . . 245
Check and Service Engine
Soon Light . . . . . . . . . . . . . . . . . . .116
Compartment Overview . . . . . . . 240
Coolant . . . . . . . . . . . . . . . . . . . . . . . 247
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . .112
Coolant Temperature Warning Light . . . . . . . . . . . . . . . 120
Cooling System . . . . . . . . . . . . . . . 246
Cooling System Messages . . . 129
Cover . . . . . . . . . . . . . . . . . . . . . . . . . 241
Drive Belt Routing . . . . . . . . . . . . 329
Exhaust . . . . . . . . . . . . . . . . . . . . . . 206
Heater . . . . . . . . . . . . . . . . . . . . . . . . 202 Engine (cont'd)
Oil Life System . . . . . . . . . . . . . . . 244
Oil Messages . . . . . . . . . . . . . . . . . 129
Oil Pressure Light . . . . . . . . . . . . 120
Overheated Protection
Operating Mode . . . . . . . . . . . . . 251
Overheating . . . . . . . . . . . . . . . . . . 250
Power Messages . . . . . . . . . . . . . 130
Running While Parked . . . . . . . . 206
Starting . . . . . . . . . . . . . . . . . . . . . . . 201
Entry Lighting . . . . . . . . . . . . . . . . . . . 151
Equipment, Towing . . . . . . . . . . . . . 233
Event Data Recorders . . . . . . . . . . 342
Extender, Safety Belt . . . . . . . . . . . . 64
Exterior Lamp Controls . . . . . . . . . 146
F
Features Memory . . . . . . . . . . . . . . . . . . . . . . . . . 11
Filter, Engine Air Cleaner . . . . . . . . . . . 245
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 147
Flashers, Hazard Warning . . . . . . 149
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 287 Changing . . . . . . . . . . . . . . . . . . . . . 288
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 311
Fluid Automatic Transmission . . . . . . 244
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 254

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360 Index
Lower Anchors and Tethersfor Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 85
Lumbar Adjustment . . . . . . . . . . . . . . 49 Front Seats . . . . . . . . . . . . . . . . . . . . . 49
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 326
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . 321
Maintenance Schedule . . . . . . . . . 315
Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 324
Malfunction Indicator Lamp . . . . . 116
Manual Mode . . . . . . . . . . . . . . . . . . . 208
Media Avoiding Untrusted Devices . . 164
Memory Features . . . . . . . . . . . . . . . . 11
Memory Seats . . . . . . . . . . . . . . . . . . . 50
Messages Airbag System . . . . . . . . . . . . . . . . 133
Battery Voltage andCharging . . . . . . . . . . . . . . . . . . . . 127
Brake System . . . . . . . . . . . . . . . . 127
Door Ajar . . . . . . . . . . . . . . . . . . . . . 128
Engine Cooling System . . . . . . . 129
Engine Oil . . . . . . . . . . . . . . . . . . . . 129
Engine Power . . . . . . . . . . . . . . . . 130 Messages (cont'd)
Fuel System . . . . . . . . . . . . . . . . . . 130
Key and Lock . . . . . . . . . . . . . . . . . 130
Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 130
Object Detection System . . . . . 131
Ride Control System . . . . . . . . . . 132
Security . . . . . . . . . . . . . . . . . . . . . . 133
Service Vehicle . . . . . . . . . . . . . . . 133
Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Transmission . . . . . . . . . . . . . . . . . 134
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 127
Vehicle Reminder . . . . . . . . . . . . . 135
Vehicle Speed . . . . . . . . . . . . . . . . 135
Washer Fluid . . . . . . . . . . . . . . . . . 135
Mirrors Automatic Dimming . . . . . . . . . . . . . 41
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 41
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 40
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 40
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 41
Park Tilt . . . . . . . . . . . . . . . . . . . . . . . . 41
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Mirrors, Interior Rearview . . . . . . . . 41
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 276
MP3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Multi-band Antenna . . . . . . . . . . . . . 163
N
Navigation OnStar®. . . . . . . . . . . . . . . . . . . . . . 346
Net, Convenience . . . . . . . . . . . . . . 100
New Vehicle Break-In . . . . . . . . . . . 199
O
Object Detection System Messages . . . . . . . . . . . . . . . . . . . . . 131
Odometer . . . . . . . . . . . . . . . . . . . . . . . 111
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 191
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 241
Engine Oil Life System . . . . . . . 244
Messages . . . . . . . . . . . . . . . . . . . . 129
Pressure Light . . . . . . . . . . . . . . . . 120
Older Children, Restraints . . . . . . . 78
Online Owner Center . . . . . . . . . . . 333
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 342
OnStar System . . . . . . . . . . . . . . . . . 168
OnStar
®Additional
Information . . . . . . . . . . . . . . . . . . . . 349
OnStar
®Connections . . . . . . . . . . . 346
OnStar®Diagnostics . . . . . . . . . . . . 348
OnStar®Emergency . . . . . . . . . . . . 345
OnStar®Navigation . . . . . . . . . . . . . 346
OnStar®Overview . . . . . . . . . . . . . . 344
OnStar®Security . . . . . . . . . . . . . . . 345