1999 Oldsmobile Bravada check engine light

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4-40
CAUTION:
Snow can trap exhaust gases under your vehicle.
This can cause deadly CO (carbon monoxide) gas
to get inside. CO could overcome you and kill
you. You can't see it or smell it, so you might not
know it is in your vehicle. Clear away snow from
around the base of your vehicle, especially any
that is blocking your exhaust pipe. And check
around again from time to time to be sure snow
doesn't collect there.
Open a window just a little on the side of the
vehicle that's away from the wind. This will help
keep CO out.
Run your engine only as long as you must. This saves
fuel. When you run the engine, make it go a little faster
than just idle. That is, push the accelerator slightly. This
uses less fuel for the heat that you get and it keeps the
battery charged. You will need a well
-charged battery to
restart the vehicle, and possibly for signaling later on
with your headlamps. Let the heater run for a while.Then, shut the engine off and close the window almost
all the way to preserve the heat. Start the engine again
and repeat this only when you feel really uncomfortable
from the cold. But do it as little as possible. Preserve the
fuel as long as you can. To help keep warm, you can get
out of the vehicle and do some fairly vigorous exercises
every half hour or so until help comes.
Recreational Vehicle Towing
Your vehicle was not designed to be towed with all four
wheels on the ground. If your vehicle must be towed,
see ªTowing Your Vehicleº in the Index.
NOTICE:
Towing your vehicle with all four wheels on the
ground will damage drivetrain components.

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5-5
4. Open both hoods and locate the batteries. Find
the positive (+) and negative (
-) terminals on
each battery.
CAUTION:
Using a match near a battery can cause battery
gas to explode. People have been hurt doing this,
and some have been blinded. Use a flashlight if
you need more light.
Be sure the battery has enough water. You don't
need to add water to the ACDelco Freedom

battery installed in every new GM vehicle. But if
a battery has filler caps, be sure the right amount
of fluid is there. If it is low, add water to take
care of that first. If you don't, explosive gas could
be present.
Battery fluid contains acid that can burn you.
Don't get it on you. If you accidentally get it in
your eyes or on your skin, flush the place with
water and get medical help immediately.
5. Check that the jumper cables don't have loose or
missing insulation. If they do, you could get a shock.
The vehicles could be damaged too.
Before you connect the cables, here are some basic
things you should know. Positive (+) will go to
positive (+) and negative (
-) will go to an unpainted
metal engine part or a body metal surface. Don't
connect positive (+) to negative (
-) or you'll get a
short that would damage the battery and maybe other
parts too. And don't connect the negative (
-) to
negative (
-).
6. Connect the red
positive (+) cable to the
positive (+) terminal of
the vehicle with the
dead battery.

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9-4
Engine (Continued)
Identification 6-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Level Check 7-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overheating 5-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Running While Parked 2-25 . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 6-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting 2-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Compartment Fuse Block 6-57 . . . . . . . . . . . . . . . . . .
Engine Oil 6-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additives 6-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking 6-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Kind to Use 6-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pressure Gage 2-65 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Filter 6-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Used 6-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
When to Add 6-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
When to Change 6-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust, Engine 2-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exit Lighting 2-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Express-Down Window 2-27 . . . . . . . . . . . . . . . . . . . . . . . . . .
Fabric Cleaning 6-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filling a Portable Fuel Container 6-7 . . . . . . . . . . . . . . . . . . . .
Filling Your Tank 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filter, Air 6-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Finish Care 6-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Finish Damage 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
First Gear 2-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flashers, Hazard Warning 5-2 . . . . . . . . . . . . . . . . . . . . . . . . .
Flash-To-Pass 2-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flat Tire, Changing 5-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fluids and Lubricants 6
-51, 7-45 . . . . . . . . . . . . . . . . . . . . . . .
Fog Lamp Switch 2-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign Countries, Fuel 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front
Axle 6
-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Area 2-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn Signal Lamp Bulb Replacement 6-33 . . . . . . . . . . . . .
Fuel 6-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filling a Portable Container 6-7 . . . . . . . . . . . . . . . . . . . . . .
Filling Your Tank 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign Countries 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gage 2-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse Block
Engine Compartment 6
-57 . . . . . . . . . . . . . . . . . . . . . . . . . .
Instrument Panel 6-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuses and Circuit Breakers 6-54 . . . . . . . . . . . . . . . . . . . . . . .
Gages
Engine Coolant Temperature 2-62 . . . . . . . . . . . . . . . . . . . .
Engine Oil Pressure 2-65 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel 2-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Garage Door Opener 2-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Cap 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gate Ajar Light 2-67 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GAWR 4-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear Positions 2-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glove Box 2-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GM Mobility Program for Persons with Disabilities 8-5 . . . . .
Gross Axle Weight Rating 4-41 . . . . . . . . . . . . . . . . . . . . . . . .
Gross Vehicle Weight Rating 4-41 . . . . . . . . . . . . . . . . . . . . . .
GVWR 4-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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9-6
Larger Children 1-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leaving Your Vehicle 2-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leaving Your Vehicle with the Engine Running 2-22 . . . . . . .
Liftgate 2-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Release 2-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Release 2-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lighter 2-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lights
Anti
-Lock Brake System Warning 2-62, 4-7 . . . . . . . . . . . .
Brake System Warning 2-61 . . . . . . . . . . . . . . . . . . . . . . . . .
Charging System 2-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check Gages 2-67 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gate Ajar 2-67 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Fuel 2-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Belt Reminder 1-9, 2-58 . . . . . . . . . . . . . . . . . . . . . .
Security Warning 2-66 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service AWD 2-67 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Engine Soon 2-63 . . . . . . . . . . . . . . . . . . . . . . . . . .
Loading Your Vehicle 4-41 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loading Your Vehicle for Off-Road Driving 4-15 . . . . . . . . . .
Locking Rear Axle 2-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lockout Prevention 2-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lockout Switch 2-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Locks
Door 2
-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Transmission Check 7-42 . . . . . . . . . . . . . . . . . . . .
Key Lock Cylinder Service 7-40 . . . . . . . . . . . . . . . . . . . . .
Power Door 2-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Door Security 2-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loss of Control 4-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Fuel Light 2-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lubricants and Fluids 6-51, 7-45 . . . . . . . . . . . . . . . . . . . . . . . Lubrication Service, Body 7
-40 . . . . . . . . . . . . . . . . . . . . . . . .
Luggage Carrier 2-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lumbar Controls 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance Record 7-47 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance Schedule 7-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Long Trip/Highway 7-6, 7-27 . . . . . . . . . . . . . . . . . . . . . . .
Owner Checks and Services 7-39 . . . . . . . . . . . . . . . . . . . . .
Periodic Maintenance Inspections 7-43 . . . . . . . . . . . . . . . .
Recommended Fluids and Lubricants 7-45 . . . . . . . . . . . . .
Scheduled Maintenance Services 7-4 . . . . . . . . . . . . . . . . . .
Short Trip/City 7-5, 7-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance, Underbody 6-51, 7-43 . . . . . . . . . . . . . . . . . . . .
Maintenance When Trailer Towing 4-50 . . . . . . . . . . . . . . . . .
Malfunction Indicator Lamp 2-63 . . . . . . . . . . . . . . . . . . . . . .
Manual Passenger Seat 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Memory Seats 1-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Methanol 6-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mirrors 2-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inside Electrochromic Rearview 2-39 . . . . . . . . . . . . . . . . .
Outside 2-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Visor Vanity 2-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mode Button 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model Reference iii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mountain Roads 4
-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multifunction Lever 2-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net, Convenience 2-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Neutral 2-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
New Vehicle ªBreak-Inº 2-13 . . . . . . . . . . . . . . . . . . . . . . . . .
Night Vision 4-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Normal Maintenance Replacement Parts 6-60 . . . . . . . . . . . . .

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9-8
Reporting Safety Defects 8-9 . . . . . . . . . . . . . . . . . . . . . . . . . .
Restraint System Check 7-40 . . . . . . . . . . . . . . . . . . . . . . . . . .
Restraints
Check 1
-52, 7-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Child 1-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Head 1-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing Parts After a Crash 1-52 . . . . . . . . . . . . . . . . . . .
Retained Accessory Power 2-15 . . . . . . . . . . . . . . . . . . . . . . . .
Reverse 2-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Right Front Passenger Position 1-21 . . . . . . . . . . . . . . . . . . . .
Roadside Assistance 8-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rocking Your Vehicle 5-29 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rotation, Tires 6-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Belts 1-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adults 1-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Care 6-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Center Rear Passenger Position 1-34 . . . . . . . . . . . . . . . . . .
Children 1-35, 1-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driver Position 1-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Extender 1-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Wear Properly 1-14 . . . . . . . . . . . . . . . . . . . . . . . . .
Lap Belt 1-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lap-Shoulder 1-14, 1-28 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Questions and Answers 1-13 . . . . . . . . . . . . . . . . . . . . . . . .
Rear Comfort Guides 1-31 . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Seat Passengers 1-28 . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing After a Crash 1-52 . . . . . . . . . . . . . . . . . . . . . . . .
Right Front Passenger Position 1-21 . . . . . . . . . . . . . . . . . .
Use During Pregnancy 1-20 . . . . . . . . . . . . . . . . . . . . . . . . .
Why They Work 1-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Safety Chains 4
-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Defects, Reporting 8-9 . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Warnings and Symbols iv. . . . . . . . . . . . . . . . . . . . . . .
Scheduled Maintenance Services 7
-4 . . . . . . . . . . . . . . . . . . . .
Seatback, Reclining Front 1-6 . . . . . . . . . . . . . . . . . . . . . . . . .
Seats 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heated 1-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Memory 1-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seats and Restraint Systems 1-1 . . . . . . . . . . . . . . . . . . . . . . . .
Second Gear 2-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security Warning Light 2-66 . . . . . . . . . . . . . . . . . . . . . . . . . .
Service and Appearance Care 6-1 . . . . . . . . . . . . . . . . . . . . . .
Service and Owner Publications 8-11, 8-12 . . . . . . . . . . . . . .
Service AWD Light 2-67 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Engine Soon Light 2-63 . . . . . . . . . . . . . . . . . . . . . . .
Service Parts Identification Label 6-53 . . . . . . . . . . . . . . . . . .
Service Work, Doing Your Own 6-2 . . . . . . . . . . . . . . . . . . . .
Servicing Your Air Bag-Equipped Vehicle 1-27 . . . . . . . . . . .
Sheet Metal Damage 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shifting 2-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Into Park 2-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Out of Park 2-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Signaling Turns 2-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Skidding 4-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications and Capacities 6-60 . . . . . . . . . . . . . . . . . . . . . .
Speech Impaired, Customer Assistance 8-4 . . . . . . . . . . . . . . .
Speedometer 2-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stains, Cleaning 6-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starter Switch Check 7-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting Your Engine 2-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steam 5-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .