2018 BUICK CASCADA check engine light

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
In Brief 71. Air Vents 0 132 .
2. Headlamp High/Low-Beam
Changer 0 121 .
Turn Signal Lever. See Turn
and Lane-Change Signals
0 123 .
Driver Information Center (DIC)
Buttons. See Driver Information
Center (DIC) 0 110 .
3. Cruise Control 0 159 .
Forward Collision Alert (FCA)
System 0 164 (If Equipped).
4. Instrument Cluster 0 98 .
5. Driver Information Center (DIC)
0 110 .
6. Steering Wheel Controls 0 94 .
7. Windshield Wiper/Washer 0 94 .
8. Central Locking Switch. See
Power Door Locks 0 28 .
Hazard Warning Flashers
0 123 .
Passenger Airbag Status
Indicator 0 101 . 9. AM-FM Radio. See the
infotainment manual.
10. Anti-Theft Alarm System
Indicator Light. See Vehicle
Alarm System 0 31 .
11. Traction Control/Electronic
Stability Control 0 157 .
Lane Departure Warning
(LDW) 0 166 .
Assistance Systems for
Parking or Backing 0 162 .
12. Dual Automatic Climate Control
System 0 129 .
Heated Front Seats 0 50 (If
Equipped).
Heated Steering Wheel 0 94 (If
Equipped).
13. USB Port. See the infotainment
manual.
Input Jack. See the
infotainment manual.
14. Convertible Top 0 37 .
All Window Switch. See Power
Windows 0 35 .
15. Electric Parking Brake 0 155 . 16. Shift Lever. See Automatic
Transmission 0 151 .
17. Power Outlets 0 96 .
18. Ignition Switch. See Ignition
Positions 0 145 .
19. Horn 0 94 .
20. Steering Wheel Adjustment
0 94 (Out of View).
21. Instrument Panel Storage 0 90 .
Instrument Panel Fuse Block
0 205 .
22. Hood Release. See Hood
0 176 .
23. Exterior Lamp Controls 0 120 .
Fog Lamps 0 124 (If
Equipped).
Instrument Panel Illumination
Control 0 124 .
24. Data Link Connector (DLC)
(Out of View). See Malfunction
Indicator Lamp (Check Engine
Light) 0 102 .

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
Keys, Doors, and Windows 33When trying to start the vehicle, the
security light comes on briefly when
the ignition is turned on.
If the engine does not start and the
security light stays on, there is a
problem with the system. Turn the
ignition off and try again.
If the engine still does not start, and
the key appears to be undamaged
or the light continues to stay on, try
another ignition key.
If the engine still does not start with
the other key, the vehicle needs
service. If the vehicle does start, the
first key may be damaged. See your
dealer who can service the
theft-deterrent system and have a
new key made.
Do not leave the transmitter or
device that disarms or deactivates
the theft-deterrent system in the
vehicle. Exterior Mirrors Convex Mirrors
{ WarningA convex mirror can make things,
like other vehicles, look farther
away than they really are. If you
cut too sharply into the right lane,
you could hit a vehicle on the
right. Check the inside mirror or
glance over your shoulder before
changing lanes.
The passenger side mirror is convex
shaped. A convex mirror's surface is
curved so more can be seen from
the driver seat. Power Mirrors
1. Turn the selector switch to L
(Left) or R (Right) to choose
the driver or passenger mirror.
2. Move the control to adjust the
mirror.
3. Turn the selector switch to
9 to deselect the mirror.

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
Instruments and Controls 93
Instruments and
Controls Controls Steering Wheel Adjustment . . . . 94
Steering Wheel Controls . . . . . . . 94
Heated Steering Wheel . . . . . . . . 94
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Windshield Wiper/Washer . . . . . . 94
Compass . . . . . . . . . . . . . . . . . . . . . . 96
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Power Outlets . . . . . . . . . . . . . . . . . 96
Warning Lights, Gauges, and
Indicators Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . . 97
Instrument Cluster . . . . . . . . . . . . . 98
Speedometer . . . . . . . . . . . . . . . . . . 99
Odometer . . . . . . . . . . . . . . . . . . . . . . 99
Trip Odometer . . . . . . . . . . . . . . . . . 99
Tachometer . . . . . . . . . . . . . . . . . . . . 99
Fuel Gauge . . . . . . . . . . . . . . . . . . . . 99
Engine Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 100
Seat Belt Reminders . . . . . . . . . 100
Airbag Readiness Light . . . . . . . 101 Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . 101
Charging System Light . . . . . . . 102
Malfunction Indicator Lamp
(Check Engine Light) . . . . . . . . 102
Brake System Warning
Light . . . . . . . . . . . . . . . . . . . . . . . . 104
Electric Parking Brake
Light . . . . . . . . . . . . . . . . . . . . . . . . 105
Service Electric Parking Brake
Light . . . . . . . . . . . . . . . . . . . . . . . . 105
Antilock Brake System (ABS)
Warning Light . . . . . . . . . . . . . . . 105
Operate Pedal Light . . . . . . . . . . 105
Power Steering Warning
Light . . . . . . . . . . . . . . . . . . . . . . . . 106
Lane Departure Warning
(LDW) Light . . . . . . . . . . . . . . . . . 106
Vehicle Ahead Indicator . . . . . . 106
StabiliTrak OFF Light . . . . . . . . . 106
Traction Control System (TCS)/
StabiliTrak Light . . . . . . . . . . . . . 107
Tire Pressure Light . . . . . . . . . . . 107
Engine Oil Pressure Light . . . . 107
Low Fuel Warning Light . . . . . . 108
Security Light . . . . . . . . . . . . . . . . . 108
High-Beam On Light . . . . . . . . . . 109
Adaptive Forward Lighting
(AFL) Light . . . . . . . . . . . . . . . . . . 109
Front Fog Lamp Light . . . . . . . . . 109 Lamps On Reminder . . . . . . . . . 109
Cruise Control Light . . . . . . . . . . 109
Door Ajar Light . . . . . . . . . . . . . . . 110
Information Displays Driver Information
Center (DIC) . . . . . . . . . . . . . . . . 110
Vehicle Messages Vehicle Messages . . . . . . . . . . . . 113
Engine Power Messages . . . . . 113
Vehicle Speed Messages . . . . . 114
Vehicle Personalization Vehicle Personalization . . . . . . . 114

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
Instruments and Controls 9710 minutes of turning off the vehicle.
See Retained Accessory Power
(RAP) 0 148 .
CautionLeaving electrical equipment
plugged in for an extended period
of time while the vehicle is off will
drain the battery. Always unplug
electrical equipment when not in
use and do not plug in equipment
that exceeds the maximum
20 amp rating.
Certain electrical accessories may
not be compatible with the
accessory power outlet and could
overload vehicle or adapter fuses.
If a problem is experienced, see
your dealer. When adding electrical equipment,
be sure to follow the installation
instructions included with the
equipment. See Add-On Electrical
Equipment 0 172 .
CautionHanging heavy equipment from
the power outlet can cause
damage not covered by the
vehicle warranty. The power
outlets are designed for
accessory power plugs only, such
as cell phone charge cords. Warning Lights,
Gauges, and
Indicators Warning lights and gauges can
signal that something is wrong
before it becomes serious enough
to cause an expensive repair or
replacement. Paying attention to the
warning lights and gauges could
prevent injury.
Some warning lights come on briefly
when the engine is started to
indicate they are working. When
one of the warning lights comes on
and stays on while driving, or when
one of the gauges shows there may
be a problem, check the section that
explains what to do. Waiting to do
repairs can be costly and even
dangerous.

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
102 Instruments and Controls If, after several seconds, both status
indicator lights remain on, or if there
are no lights at all, there may be a
problem with the lights or the
passenger sensing system. See
your dealer for service.
{ WarningIf the airbag readiness light ever
comes on and stays on, it means
that something may be wrong
with the airbag system. To help
avoid injury to yourself or others,
have the vehicle serviced right
away. See Airbag Readiness
Light 0 101 for more information,
including important safety
information.
Charging System Light The charging system light comes on
briefly when the ignition is turned
on, but the engine is not running, as
a check to show the light is working.
The light turns off when the engine
is started. If it does not, have the
vehicle serviced by your dealer.
If the light stays on, or comes on
while driving, there could be a
problem with the electrical charging
system. Have it checked by your
dealer. Driving while this light is on
could drain the battery.
If a short distance must be driven
with the light on, be sure to turn off
all accessories, such as the radio
and air conditioner.
Malfunction Indicator
Lamp (Check Engine
Light) This light is part of the vehicle ’ s
emission control on-board
diagnostic system. If this light is on
while the engine is running, a
malfunction has been detected and
the vehicle may require service. The
light should come on to show that it is working when the ignition is on
with the engine not running. See
Ignition Positions 0 145 .
Malfunctions are often indicated by
the system before any problem is
noticeable. Being aware of the light
and seeking service promptly when
it comes on may prevent damage.
CautionIf the vehicle is driven continually
with this light on, the emission
control system may not work as
well, the fuel economy may be
lower, and the vehicle may not
run smoothly. This could lead to
costly repairs that might not be
covered by the vehicle warranty.

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
Instruments and Controls 103CautionModifications to the engine,
transmission, exhaust, intake,
or fuel system, or the use of
replacement tires that do not
meet the original tire
specifications, can cause this light
to come on. This could lead to
costly repairs not covered by the
vehicle warranty. This could also
affect the vehicle ’ s ability to pass
an Emissions Inspection/
Maintenance test. See
Accessories and Modifications
0 175 .
If the light is flashing : A
malfunction has been detected that
could damage the emission control
system and increase vehicle
emissions. Diagnosis and service
may be required.
To help prevent damage, reduce
vehicle speed and avoid hard
accelerations and uphill grades. If the light continues to flash, find a
safe place to park. Turn the vehicle
off and wait at least 10 seconds
before restarting the engine. If the
light is still flashing, follow the
previous guidelines and see your
dealer for service as soon as
possible.
If the light is on steady : A
malfunction has been detected.
Diagnosis and service may be
required.
Check the following:
.
A loose or missing fuel cap may
cause the light to come on. See
Filling the Tank 0 169 . A few
driving trips with the cap
properly installed may turn the
light off.
.
Poor fuel quality can cause
inefficient engine operation and
poor driveability, which may go
away once the engine is warmed
up. If this occurs, change the
fuel brand. It may require at
least one full tank of the proper
fuel to turn the light off. See Fuel
0 167 . If the light remains on, see your
dealer.
Emissions Inspection and
Maintenance Programs If the vehicle requires an Emissions
Inspection/Maintenance test, the
test equipment will likely connect to
the vehicle's Data Link
Connector (DLC).
The DLC is under the instrument
panel to the left of the steering
wheel. Connecting devices that are
not used to perform an Emissions
Inspection/Maintenance test or to
service the vehicle may affect
vehicle operation. See Add-On
Electrical Equipment 0 172 . See
your dealer if assistance is needed.

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
106 Instruments and Controls This light comes on when the brake
pedal needs to be applied to release
the Electric Parking Brake (EPB).
Power Steering Warning
Light
This light comes on briefly when the
ignition is turned on as a check to
show it is working.
If it does not come on have the
vehicle serviced by your dealer.
If this light stays on, or comes on
while driving, the system may not be
working. If this happens, see your
dealer for service. Lane Departure Warning
(LDW) Light
If equipped, this light comes on
briefly while starting the vehicle. If it
does not come on, have the vehicle
serviced.
This light is green if LDW is on and
ready to operate.
This light changes to amber and
flashes to indicate that the lane
marking has been crossed without
using a turn signal in that direction.
See Lane Departure Warning (LDW)
0 166 . Vehicle Ahead Indicator If equipped, this indicator will
display green when a vehicle is
detected ahead.
See Forward Collision Alert (FCA)
System 0 164 .
StabiliTrak OFF Light
This light comes on briefly while
starting the engine. If it does not,
have the vehicle serviced by your
dealer.

Buick Cascada Owner Manual (GMNA-Localizing-U.S-11373983) - 2018 -
CRC - 7/10/17
Instruments and Controls 107This light comes on when the
StabiliTrak system is turned off.
If StabiliTrak is off, the Traction
Control System (TCS) is also off.
If StabiliTrak and TCS are off, the
system does not assist in controlling
the vehicle. Turn on the TCS and
the StabiliTrak systems, and the
warning light turns off.
See Traction Control/Electronic
Stability Control 0 157 .
Traction Control System
(TCS)/StabiliTrak Light
This light comes on briefly when the
engine is started.
If the light does not come on, have
the vehicle serviced by your dealer.
If the system is working normally,
the indicator light turns off. If the light is on and not flashing, the
TCS and potentially the StabiliTrak
system have been disabled.
A Driver Information Center (DIC)
message may display. Check the
DIC messages to determine which
feature(s) is no longer functioning
and whether the vehicle requires
service.
If the light is on and flashing, the
TCS and/or the StabiliTrak system
is actively working.
See Traction Control/Electronic
Stability Control 0 157 .
Tire Pressure Light
For vehicles with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the engine is
started. It provides information
about tire pressures and the TPMS. When the Light Is On Steady
This indicates that one or more of
the tires are significantly
underinflated.
Stop as soon as possible, and
inflate the tires to the pressure value
shown on the Tire and Loading
Information label. See Tire Pressure
0 216 .
When the Light Flashes First and
Then Is On Steady
If the light flashes for about a minute
and then stays on, there may be a
problem with the TPMS. If the
problem is not corrected, the light
will come on at every ignition cycle.
See Tire Pressure Monitor
Operation 0 218 .
Engine Oil Pressure Light Caution
Lack of proper engine oil
maintenance can damage the
engine. Driving with the engine oil
(Continued)