
Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
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Vehicle Care 329
When to Check and Change
Automatic Transmission Fluid
It is usually not necessary to check
the transmission fluid level. The only
reason for fluid loss is a
transmission leak or overheated
transmission. If a small leak is
suspected, then use the following
checking procedures to check the
fluid level. However, if there is a
large leak, then it may be necessary
to have the vehicle towed to a
dealer service department and have
it repaired before driving the vehicle
further.
Caution
Use of the incorrect automatic
transmission fluid may damage
the vehicle, and the damage may
not be covered by the vehicle
warranty. Always use the
automatic transmission fluid listed
inRecommended Fluids and
Lubricants 0421. Change the fluid and filter at the
scheduled maintenance intervals
listed in
Maintenance Schedule
0 412. Be sure to use the
transmission fluid listed in
Recommended Fluids and
Lubricants 0421.
How to Check Automatic
Transmission Fluid (6-Speed
Automatic Transmission Only)
Caution
Too much or too little fluid can
damage the transmission. Too
much can mean that some of the
fluid could come out and fall on
hot engine parts or exhaust
system parts, starting a fire. Too
little fluid could cause the
transmission to overheat. Be sure
to get an accurate reading if
checking the transmission fluid.
Before checking the fluid level,
prepare the vehicle: 1. Start the engine and park the
vehicle on a level surface.
Keep the engine running.
2. Apply the parking brake and place the shift lever in P (Park).
3. With your foot on the brake pedal, move the shift lever
through each gear range,
pausing for about
three seconds in each range.
Then, move the shift lever back
to P (Park).
4. Allow the engine to idle (500– 800 rpm) for at least
one minute. Slowly release the
brake pedal.
5. Keep the engine running and check the transmission fluid
temperature on the Driver
Information Center (DIC). See
Driver Information Center (DIC)
(Base Level) 0158 orDriver
Information Center (DIC)
(Uplevel) 0160.
6. Using the transmission fluid temperature reading, determine
and perform the appropriate
check procedure. If the

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
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Service and Maintenance 413
a year and the oil life system must
be reset. Your trained dealer
technician can perform this work.
If the engine oil life system is reset
accidentally, service the vehicle
within 5 000 km/3,000 mi since the
last service. Reset the oil life
system when the oil is changed.
SeeEngine Oil Life System 0327.
Tire Rotation and Required
Services Every 12 000 km/
7,500 mi
Rotate the tires, if recommended for
the vehicle, and perform the
following services. See Tire
Rotation 0375.
. Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system. See Engine
Oil 0325 andEngine Oil Life
System 0327.
. Check engine coolant level. See
Engine Coolant 0333.
. Check windshield washer fluid
level. See Washer Fluid 0338. .
Visually inspect windshield wiper
blades for wear, cracking,
or contamination. See Exterior
Care 0402. Replace worn or
damaged wiper blades. See
Wiper Blade
Replacement 0345.
. Check tire inflation pressures.
See Tire Pressure 0369.
. Inspect tire wear. See Tire
Inspection 0375.
. Visually check for fluid leaks.
. Inspect engine air cleaner filter.
See Engine Air Cleaner/
Filter 0331.
. Inspect brake system. See
Exterior Care 0402.
. Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of wear
at least once a year. See
Exterior Care 0402. Lubricate
the suspension and steering
components at least every other
oil change (if equipped with
grease fittings). .
Check restraint system
components. See Safety System
Check 090.
. Visually inspect fuel system for
damage or leaks.
. Visually inspect exhaust system
and nearby heat shields for
loose or damaged parts.
. Lubricate body components. See
Exterior Care 0402.
. Check starter switch. See Starter
Switch Check 0344.
. Check automatic transmission
shift lock control function. See
Automatic Transmission Shift
Lock Control Function
Check 0344.
. Check ignition transmission lock.
See Ignition Transmission Lock
Check 0344.
. Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism
Check 0345.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
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Service and Maintenance 417
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 and filter.@@@
Change transfer case fluid, if equipped with
4WD. (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 421
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer.Usage Fluid/Lubricant
Automatic Transmission DEXRON
®-VI Automatic Transmission Fluid.
Chassis Lubrication Chassis Lubricant (GM Part No. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL
®Coolant.
See Engine Coolant 0333.
Engine Oil Engine oil meeting the dexos1™ specification of the proper SAE viscosity
grade. ACDelco dexos1 Synthetic Blend is recommended. See Engine
Oil 0325.
Front Axle (Four-Wheel Drive) SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88900401, in Canada 89021678).
Front Axle Propshaft Spline or One-Piece Propshaft Spline (Two-Wheel Drive) Spline Lubricant, Special Lubricant (GM Part No. 19257121, in
Canada 19257122).
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 19299818, in Canada 19299819).
Key Lock Cylinders, Hood Hinges, Power Assist Steps, and OuterLiftgate Handle Pivot Points Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Canada 10953474).

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
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422 Service and Maintenance
UsageFluid/Lubricant
Rear Axle SAE 75W-85 Synthetic Axle Lubricant (GM Part No. 19300457, in
Canada 19300458).
Transfer Case (Four-Wheel Drive) DEXRON
®-VI Automatic Transmission Fluid.
Weatherstrip Conditioning Weatherstrip Lubricant (GM Part No. 3634770, in Canada 10953518) or Dielectric Silicone Grease (GM Part No. 12345579, in Canada 10953481).
Weatherstrip Squeaks Synthetic Grease with Teflon, Superlube (GM Part No. 12371287, in Canada 10953437).
Windshield Washer Automotive windshield washer fluid that meets regional freeze protection requirements.
Maintenance Replacement Parts
Replacement parts identified below by name, part number, or specification can be obtained from your dealer.
Part GM Part Number ACDelco Part Number
Engine Air Cleaner/Filter 22845992 A3181C
Oil Filter 19330000 PF63E
Passenger Compartment Air Filter 23281440 CF188
Spark Plugs 12622441 41-114
Wiper Blades Driver Side –55 cm (21.7 in) 22756331 —

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
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454 Index
Antilock Brake System(ABS) (cont'd)
Warning Light . . . . . . . . . . . . . . . . . 154
Appearance Care
Exterior . . . . . . . . . . . . . . . . . . . . . . . 402
Interior . . . . . . . . . . . . . . . . . . . . . . . . 406
Armrest Storage . . . . . . . . . . . . . . . . 126
Assistance Program, Roadside . . . . . . . . . . . . . . . . . . . . . . 433
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . 290
Assistance Systems for Parking and Backing . . . . . . . . . . 288
Audio Theft-Deterrent Feature . . . . . . . 199
Audio Players CD . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Automatic
Door Locks . . . . . . . . . . . . . . . . . . . . . 46
Forward Braking . . . . . . . . . . . . . . 293
Headlamp System . . . . . . . . . . . . 192
Level Control . . . . . . . . . . . . . . . . . 277
Transmission . . . . . . . . . . . . . . . . . 262
Transmission Fluid . . . . . . . . . . . 328
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 265
Shift Lock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . 344 Auxiliary Jack . . . . . . . . . . . . . . . . . . . 213
Axle, Front . . . . . . . . . . . . . . . . . . . . . . 341
Axle, Rear . . . . . . . . . . . . . . . . . . . . . . 342
B
Battery
Load Management . . . . . . . . . . . . 196
Power Protection . . . . . . . . . . . . . 197
Voltage and Charging
Messages . . . . . . . . . . . . . . . . . . . 166
Battery - North America . . . . 340, 393
Blade Replacement, Wiper . . . . . 345
Blind Spot Mirrors . . . . . . . . . . . . . . . 58
Bluetooth Overview . . . . . . . . . . . 214, 215, 219
Brake Pedal and Adjustable
Throttle . . . . . . . . . . . . . . . . . . . . . . 251
System Warning Light . . . . . . . . 153
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 338 Antilock . . . . . . . . . . . . . . . . . . . . . . . 272
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 273
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 339
Parking . . . . . . . . . . . . . . . . . . . . . . . 273
System Messages . . . . . . . . . . . . 167
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 236
Automatic Forward . . . . . . . . . . . 293
Break-In, New Vehicle . . . . . . . . . . 251
Bulb Replacement . . . . . . . . . . . . . . 351 Bulb Replacement (cont'd)
Fog Lamps . . . . . . . . . . . . . . . . . . . 348
Front Turn Signal Lamps . . . . . 348
Halogen Bulbs . . . . . . . . . . . . . . . . 347
Headlamp Aiming . . . . . . . . . . . . . 347
Headlamps . . . . . . . . . . . . . . 347, 348
High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . . . 347
License Plate Lamps . . . . . . . . . 350
Taillamps, Turn Signal,
Stoplamps, and Back-up
Lamps . . . . . . . . . . . . . . . . . . . . . . 349
Buying New Tires . . . . . . . . . . . . . . . 377
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 135
California Fuel Requirements . . . . . . . . . . . 299
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 321
California Proposition
65 Warning . . . . . . . . . .320, 340, 393
Canadian Vehicle Owners . . . . . . . . 2
Capacities and
Specifications . . . . . . . . . . . . . . . . . 426
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 261
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . 47

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Index 457
FlexFuelE85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 409
Fluid Automatic Transmission . . . . . . 328
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 339
Four-Wheel DriveTransfer Case . . . . . . . . . . . . . . . 267
Power Steering . . . . . . . . . . . . . . . 338
Washer . . . . . . . . . . . . . . . . . . . . . . . 338
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 194
Bulb Replacement . . . . . . . . . . . . 348
Folding Mirrors . . . . . . . . . . . . . . . . . . 58
Forward Automatic Braking . . . . . 293
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 291
Four-Wheel Drive . . . . . . . . . . 267, 341
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 439
Front Axle . . . . . . . . . . . . . . . . . . . . . . 341
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 67
Heated and Ventilated . . . . . . . . . . 72
Front Turn Signal Lamps . . . . . . . 348
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298 Additives . . . . . . . . . . . . . . . . . . . . . 300 Fuel (cont'd)
Economy Driving . . . . . . . . . . . . . . . 30
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 302
Filling the Tank . . . . . . . . . . . . . . . 301
Foreign Countries . . . . . . . . . . . . 299
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 145
Low Fuel Warning Light . . . . . . . 156
Management, Active . . . . . . . . . . 261
Requirements, California . . . . . 299
System Messages . . . . . . . . . . . . 170
Full-Size Spare Tire . . . . . . . . . . . . 392
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . 351 Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 352
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . 356, 359
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 361
G
Garage Door Opener . . . . . . . . . . . 185Programming . . . . . . . . . . . . . . . . . 185
Gauges
Engine CoolantTemperature . . . . . . . . . . . . . . . . 147
Engine Oil Pressure . . . . . . . . . . 146
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Odometer . . . . . . . . . . . . . . . . . . . . . 145 Gauges (cont'd)
Speedometer . . . . . . . . . . . . . . . . . 145
Tachometer . . . . . . . . . . . . . . . . . . . 145
Trip Odometer . . . . . . . . . . . . . . . . 145
Voltmeter . . . . . . . . . . . . . . . . . . . . . 148
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . 140
General Information Service and Maintenance . . . . . .411
Towing . . . . . . . . . . . . . . . . . . . . . . . . 303
Vehicle Care . . . . . . . . . . . . . . . . . . 320
Glass Replacement . . . . . . . . . . . . . 346
Glove Box . . . . . . . . . . . . . . . . . . . . . . 125
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 433
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 347
Hazard Warning Flashers . . . . . . . 193
Head Restraints . . . . . . . . . . . . . . . . . 66
Head-up Display . . . . . . . . . . . . . . . . 162
Headlamps . . . . . . . . . . . . . . . . . . . . . 348Aiming . . . . . . . . . . . . . . . . . . . . . . . . 347
Automatic . . . . . . . . . . . . . . . . . . . . . 192
Bulb Replacement . . . . . . . . . . . . 347
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . 192
Flash-to-Pass . . . . . . . . . . . . . . . . . 191

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
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Index 459
Level ControlAutomatic . . . . . . . . . . . . . . . . . . . . . 277
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Light Hill Decent Control . . . . . . . . . . . 154
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . 196
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Illumination Control . . . . . . . . . . . 194
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 347
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Airbag Readiness . . . . . . . . . . . . . 149
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 154
Brake System Warning . . . . . . . 153
Charging System . . . . . . . . . . . . . 151
Cruise Control . . . . . . . . . . . . . . . . 157
Flash-to-Pass . . . . . . . . . . . . . . . . . 191
Front Fog Lamp . . . . . . . . . . . . . . 157
High-Beam On . . . . . . . . . . . . . . . . 157
High/Low Beam Changer . . . . . 191
Low Fuel Warning . . . . . . . . . . . . 156
Safety Belt Reminders . . . . . . . . 149
Security . . . . . . . . . . . . . . . . . . . . . . 157
StabiliTrak
®OFF . . . . . . . . . . . . . 155
Tire Pressure . . . . . . . . . . . . . . . . . 156
Tow/Haul Mode . . . . . . . . . . . . . . . 154 Lights (cont'd)
Traction Control System
(TCS)/StabiliTrak
®. . . . . . . . . . 156
Traction Off . . . . . . . . . . . . . . . . . . . 155
Locking Rear Axle . . . . . . . . . . . . . . 277
Locks Automatic Door . . . . . . . . . . . . . . . . . 46
Delayed Locking . . . . . . . . . . . . . . . . 46
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Lockout Protection . . . . . . . . . . . . . . 46
Power Door . . . . . . . . . . . . . . . . . . . . . 45
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Loss of Control . . . . . . . . . . . . . . . . . 238
Low Fuel Warning Light . . . . . . . . . 156
Low-Profile Tires . . . . . . . . . . . . . . . . 364
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . 111
Lumbar Adjustment . . . . . . . . . . . . . . 68 Front Seats . . . . . . . . . . . . . . . . . . . . . 68
M
Magnetic Ride Control . . . . . . . . . . 277
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 424
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . 418
Maintenance Schedule . . . . . . . . . 412 Maintenance Schedule (cont'd)
Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . 421
Transfer Case . . . . . . . . . . . . . . . . 267
Malfunction Indicator Lamp . . . . . 151
Manual Mode . . . . . . . . . . . . . . . . . . . 265
Memory Features . . . . . . . . . . . . . . . . 13
Memory Seats . . . . . . . . . . . . . . . . . . . 70
Messages Airbag System . . . . . . . . . . . . . . . . 174
Battery Voltage andCharging . . . . . . . . . . . . . . . . . . . . 166
Brake System . . . . . . . . . . . . . . . . 167
Compass . . . . . . . . . . . . . . . . . . . . . 167
Door Ajar . . . . . . . . . . . . . . . . . . . . . 168
Engine Cooling System . . . . . . . 168
Engine Oil . . . . . . . . . . . . . . . . . . . . 169
Engine Power . . . . . . . . . . . . . . . . 169
Fuel System . . . . . . . . . . . . . . . . . . 170
Key and Lock . . . . . . . . . . . . . . . . . 170
Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 170
Object Detection System . . . . . 171
Ride Control System . . . . . . . . . . 172
Security . . . . . . . . . . . . . . . . . . . . . . 174
Starting the Vehicle . . . . . . . . . . . 174
Steering System . . . . . . . . . . . . . . 174
Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Transmission . . . . . . . . . . . . . . . . . 175