oil level BUICK REGAL 2015 Owner's Manual

Black plate (22,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
1-22 In Brief
The low tire pressure warning light
may come on in cool weather when
the vehicle is first started, and then
turn off as the vehicle is driven. This
may be an early indicator that the
tire pressures are getting low and
the tires need to be inflated to the
proper pressure.
The TPMS does not replace normal
monthly tire maintenance. Maintain
the correct tire pressures.
SeeTire Pressure Monitor System
on page 10-50.
Engine Oil Life System
The engine oil life system calculates
engine oil life based on vehicle use
and displays the CHANGE ENGINE
OIL SOON message when it is time
to change the engine oil and filter.
The oil life system should be reset
to 100% only following an oil
change. Resetting the Oil Life System
1. Using the DIC controls on the
right side of the steering wheel,
display REMAINING OIL LIFE
on the DIC. See Driver
Information Center (DIC) (Base
Level Cluster) on page 5-32 or
Driver Information Center (DIC)
(Uplevel Cluster) on page 5-35.
When remaining oil life is low,
the CHANGE ENGINE OIL
SOON message will appear on
the display. See Engine Oil
Messages on page 5-41.
2. Press
Von the DIC controls and
hold down for a few seconds to
clear the CHANGE ENGINE OIL
SOON message and reset the
oil life at 100%.
Be careful not to reset the oil life
display accidentally at any time
other than after the oil is
changed. It cannot be reset
accurately until the next oil
change.
See Engine Oil Life System on
page 10-13.
E85 or FlexFuel
Vehicles with a yellow fuel cap can
use either unleaded gasoline or
ethanol fuel containing up to 85%
ethanol (E85). See E85 or FlexFuel
on page 9-61. For all other vehicles,
use only the unleaded gasoline
described under Fuel on page 9-59.
Driving for Better Fuel
Economy
Driving habits can affect fuel
mileage. Here are some driving tips
to get the best fuel economy
possible.
.Avoid fast starts and accelerate
smoothly.
.Brake gradually and avoid
abrupt stops.
.Avoid idling the engine for long
periods of time.
.When road and weather
conditions are appropriate, use
cruise control.

Black plate (1,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Instruments and Controls 5-1
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 5-2
Steering Wheel Controls . . . . . . 5-2
Heated Steering Wheel . . . . . . . 5-2
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Windshield Wiper/Washer . . . . . 5-3
Compass . . . . . . . . . . . . . . . . . . . . . 5-4
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Power Outlets . . . . . . . . . . . . . . . . . 5-5
Cigarette Lighter . . . . . . . . . . . . . . 5-6
Ashtrays . . . . . . . . . . . . . . . . . . . . . . 5-6
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . 5-7
Instrument Cluster (Base Level Cluster) . . . . . . . . . . . . . . . . . . . . . . 5-8
Instrument Cluster (Uplevel Cluster) . . . . . . . . . . . . . . . . . . . . 5-12
Speedometer . . . . . . . . . . . . . . . . 5-15
Odometer . . . . . . . . . . . . . . . . . . . . 5-15
Trip Odometer . . . . . . . . . . . . . . . 5-15
Tachometer . . . . . . . . . . . . . . . . . . 5-15 Fuel Gauge . . . . . . . . . . . . . . . . . . 5-16
Engine Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 5-17
Safety Belt Reminders . . . . . . . 5-18
Airbag Readiness Light . . . . . . 5-18
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . 5-19
Charging System Light . . . . . . 5-20
Malfunction Indicator Lamp . . . . . . . . . . . . . 5-20
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . 5-23
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . 5-24
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . 5-24
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . 5-24
Up-Shift Light . . . . . . . . . . . . . . . . 5-25
Lane Departure Warning (LDW) Light . . . . . . . . . . . . . . . . 5-25
Vehicle Ahead Indicator . . . . . . 5-26
Traction Off Light . . . . . . . . . . . . 5-26
StabiliTrak
®OFF Light . . . . . . . 5-26
Traction Control System (TCS)/StabiliTrak
®Light . . . . 5-27
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . 5-27
Tire Pressure Light . . . . . . . . . . 5-28 Engine Oil Pressure Light . . . . 5-28
Low Fuel Warning Light . . . . . . 5-29
Security Light . . . . . . . . . . . . . . . . 5-29
High-Beam On Light . . . . . . . . . 5-29
Front Fog Lamp Light . . . . . . . . 5-29
Lamps On Reminder . . . . . . . . . 5-30
Cruise Control Light . . . . . . . . . 5-30
Door Ajar Light . . . . . . . . . . . . . . 5-30
Information Displays
Power Flows
(eAssist Only) . . . . . . . . . . . . . . 5-31
Energy Information (eAssist Only) . . . . . . . . . . . . . . 5-32
Driver Information Center (DIC) (Base Level
Cluster) . . . . . . . . . . . . . . . . . . . . 5-32
Driver Information Center (DIC) (Uplevel Cluster) . . . . . 5-35
Vehicle Messages
Vehicle Messages . . . . . . . . . . . 5-38
Battery Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . 5-38
Brake System Messages . . . . 5-39
Compass Messages . . . . . . . . . 5-39
Cruise Control Messages . . . . 5-39
Door Ajar Messages . . . . . . . . . 5-40

Black plate (13,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Instruments and Controls 5-13
Cluster Menu
Use the right steering wheel control
to open and scroll through the
different items and displays.Press
Sto access the cluster
applications. Use
yorzto scroll
through the list of available
applications. Not all applications will
be available on all vehicles.
.Info App. This is where you can
view the selected Driver
Information Center (DIC)
displays. See Driver Information
Center (DIC) (Base Level
Cluster) on page 5-32 orDriver
Information Center (DIC)
(Uplevel Cluster) on page 5-35.
.Performance
.Audio
.Phone
.Navigation
.Settings Performance
Press
Vto select the Performance
app. Use
yorzto scroll through
items in the Performance menu.
Friction Bubble: Displays four
quadrants that represent the four
corners of the car. A “bubble”shows
where the most inertia is being
exerted on the vehicle.
Accel and Brake: Displays
the percentage amount of brake or
accelerator pressure applied by the
driver as a bar graph around the
outer perimeter of the DIC area. The
left side is for acceleration and the
right side is for braking.
Oil Temperature: Displays the oil
temperature in degrees Celsius or
degrees Fahrenheit.
Oil Pressure: Displays the oil
pressure in kPa or psi.
Battery Voltage: Displays the
battery voltage.

Black plate (28,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
5-28 Instruments and Controls
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.
A Driver Information Center (DIC)
tire pressure message may also
display. SeeTire Messages on
page 5-46. Stop as soon as
possible, and inflate the tires to the
pressure value shown on the Tire
and Loading Information label. See
Tire Pressure on page 10-48. 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 on page 10-51.
Engine Oil Pressure Light
{Caution
Lack of proper engine oil
maintenance can damage the
engine. Driving with the engine
oil low can also damage the
engine. The repairs would not be
covered by the vehicle warranty.
Check the oil level as soon as
possible. Add oil if required, but if
the oil level is within the operating
range and the oil pressure is still
low, have the vehicle serviced.
Always follow the maintenance
schedule for changing engine oil.
This light should come on briefly as
the engine is started. If it does not
come on, have the vehicle serviced
by your dealer.
If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle
could be low on oil and might have
some other system problem. See
your dealer.

Black plate (41,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Instruments and Controls 5-41
Engine Cooling System
Messages
A/C OFF DUE TO HIGH
ENGINE TEMP
This message displays when the
engine coolant becomes hotter than
the normal operating temperature.
To avoid added strain on a hot
engine, the air conditioning
compressor automatically turns off.
When the coolant temperature
returns to normal, the air
conditioning compressor turns back
on. The vehicle can continue to be
driven.
If this message continues to appear,
have the system repaired by your
dealer as soon as possible to avoid
damage to the engine.
COOLANT LEVEL LOW ADD
COOLANT
This message will display if the
coolant is low. SeeEngine Coolant
on page 10-19.
ENGINE OVERHEATED —
IDLE ENGINE
This message displays when the
engine coolant temperature is too
hot. Stop and allow the vehicle to
idle until it cools down.
ENGINE OVERHEATED —
STOP ENGINE
This message displays and a
continuous chime sounds if the
engine cooling system reaches
unsafe temperatures for operation.
Stop and turn off the vehicle as
soon as it is safe to do so to avoid
severe damage. This message
clears when the engine has cooled
to a safe operating temperature.
HIGH COOLANT
TEMPERATURE
This message displays if the coolant
temperature is hot. See Engine
Overheating on page 10-22.
Engine Oil Messages
CHANGE ENGINE OIL SOON
This message displays when the
engine oil needs to be changed.
When you change the engine oil, be
sure to reset the Oil Life System.
See Engine Oil Life System on
page 10-13, Driver Information
Center (DIC) (Base Level Cluster)
on page 5-32 orDriver Information
Center (DIC) (Uplevel Cluster) on
page 5-35, Engine Oil on
page 10-11, and Maintenance
Schedule on page 11-3.
ENGINE OIL HOT, IDLE
ENGINE
This message displays when the
engine oil temperature is too hot.
Stop and allow the vehicle to idle
until it cools down.
ENGINE OIL LOW —ADD OIL
On some vehicles, this message
may display when the engine oil
level is too low. Check the oil level.
See Engine Oil on page 10-11.

Black plate (42,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
5-42 Instruments and Controls
OIL PRESSURE LOW—STOP
ENGINE
This message displays if low oil
pressure levels occur. Stop the
vehicle as soon as safely possible
and do not operate it until the cause
of the low oil pressure has been
corrected. Check the oil as soon as
possible and have the vehicle
serviced by your dealer.
Engine Power Messages
ENGINE POWER IS REDUCED
This message displays when the
vehicle's engine power is reduced.
Reduced engine power can affect
the vehicle's ability to accelerate.
If this message is on, but there is no
reduction in performance, proceed
to your destination. The
performance may be reduced the
next time the vehicle is driven. The
vehicle may be driven at a reduced
speed while this message is on, but
maximum acceleration and speed
may be reduced. Anytime this message stays on, the vehicle
should be taken to your dealer for
service as soon as possible.
Fuel System Messages
FUEL LEVEL LOW
This message displays when the
vehicle is low on fuel. Refuel as
soon as possible.
Key and Lock Messages
NO REMOTE DETECTED
This message displays when the
transmitter battery is weak on
vehicles with Keyless Access. See
“Starting the Vehicle with a Low
Transmitter Battery”
underRemote
Keyless Entry (RKE) System
Operation on page 2-3.
NO REMOTE KEY WAS
DETECTED PLACE KEY IN
TRANSMITTER POCKET THEN
START YOUR VEHICLE
This message displays when trying
to start the vehicle if an RKE
transmitter is not detected. The
transmitter battery may be weak.
See “Starting the Vehicle with a Low
Transmitter Battery” underRemote
Keyless Entry (RKE) System
Operation on page 2-3.
REPLACE BATTERY IN
REMOTE KEY
This message displays when the
battery in the Remote Keyless Entry
(RKE) transmitter needs to be
replaced. See “Battery
Replacement” underRemote
Keyless Entry (RKE) System
Operation on page 2-3.

Black plate (6,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
9-6 Driving and Operating
material on the road. Learn to
recognize warning clues—such
as enough water, ice, or packed
snow on the road to make a
mirrored surface —and slow
down when you have any doubt.
.Try to avoid sudden steering,
acceleration, or braking,
including reducing vehicle speed
by shifting to a lower gear. Any
sudden changes could cause
the tires to slide.
Remember: Antilock brakes help
avoid only the braking skid.
Track Events and
Competitive Driving
Racing, track testing, or competitive
driving may affect the vehicle
warranty. See the warranty manual
before using the vehicle for racing
or other competitive driving.
{Caution
If the vehicle is used for track
events and competitive driving,
the engine may use more oil than
it would with normal use. Low oil
levels can damage the engine.
Check the oil level often and
maintain the proper level. See
Engine Oil on page 10-11.
For the 2.0L engine: Add and keep
the oil level at 1 L (1 qt) above the
high mark when driving under these
conditions. For information on how
to check and add oil, see Engine Oil
on page 10-11.
{Caution
During a first time track or racing
event, high rear axle
temperatures can occur. Damage
could be caused to the rear axle
and would not be covered by the
(Continued)
Caution (Continued)
vehicle warranty. Do not drive as
long or as fast the first time the
vehicle is driven on the track or
raced.
Driving on Wet Roads
Rain and wet roads can reduce
vehicle traction and affect your
ability to stop and accelerate.
Always drive slower in these types
of driving conditions and avoid
driving through large puddles and
deep‐standing or flowing water.
{Warning
Wet brakes can cause crashes.
They might not work as well in a
quick stop and could cause
pulling to one side. You could
lose control of the vehicle.(Continued)

Black plate (11,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Vehicle Care 10-11
1.Engine Air Cleaner/Filter on
page 10-16.
2. Engine Cover.
3. Engine Cooling Fans (Out of View). See Cooling System on
page 10-18.
4. Engine Oil Fill Cap. See Engine
Oil on page 10-11.
5. Engine Oil Dipstick (Out of View). See Engine Oil on
page 10-11.
6. High Voltage Cable (Orange Color).
7. Transmission Fluid Cap. See Automatic Transmission Fluid on
page 10-15.
8. Brake Master Cylinder Reservoir. See Brakes on
page 10-24.
9. Battery (Under Cover). See Battery on page 10-26.
10. Coolant Surge Tank and Pressure Cap. See Engine
Coolant on page 10-19. 11.
Engine Compartment Fuse
Block on page 10-35.
12. Windshield Washer Fluid Reservoir. See Washer Fluid
on page 10-23.
Engine Oil
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
.Always use engine oil approved
to the proper specification and of
the proper viscosity grade. See
“Selecting the Right Engine Oil”
in this section.
.Check the engine oil level
regularly and maintain the
proper oil level. See “Checking
Engine Oil” and“When to Add
Engine Oil” in this section.
.Change the engine oil at the
appropriate time. See Engine Oil
Life System on page 10-13.
.Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
Checking Engine Oil
It is a good idea to check the engine
oil level at each fuel fill. In order to
get an accurate reading, the oil
must be warm and the vehicle must
be on level ground. The engine oil
dipstick handle is a loop. See
Engine Compartment Overview on
page 10-6 for the location of the
engine oil dipstick.
Obtaining an accurate oil level
reading is essential:
1. If the engine has been running recently, turn off the engine and
allow several minutes for the oil
to drain back into the oil pan.
Checking the oil level too soon
after engine shutoff will not
provide an accurate oil level
reading.

Black plate (12,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
10-12 Vehicle Care
{Warning
The engine oil dipstick handle
may be hot; it could burn you.
Use a towel or glove to touch the
dipstick handle.
2. Pull out the dipstick and wipe it with a clean paper towel or cloth,
then push it back in all the way.
Remove it again, keeping the tip
down, and check the level.
When to Add Engine Oil
If the oil is below the cross-hatched
area at the tip of the dipstick, add
1 L (1 qt) of the recommended oil
and then recheck the level. See
“Selecting the Right Engine Oil” in
this section for an explanation of what kind of oil to use. For engine
oil crankcase capacity, see
Capacities and Specifications on
page 12-2.
{Caution
Do not add too much oil. Oil
levels above or below the
acceptable operating range
shown on the dipstick are harmful
to the engine. If you find that you
have an oil level above the
operating range, i.e., the engine
has so much oil that the oil level
gets above the cross-hatched
area that shows the proper
operating range, the engine could
be damaged. You should drain
out the excess oil or limit driving
of the vehicle and seek a service
professional to remove the
excess amount of oil.
See Engine Compartment Overview
on page 10-6 for the location of the
engine oil fill cap. Add enough oil to put the level
somewhere in the proper operating
range. Push the dipstick all the way
back in when through.
Selecting the Right Engine Oil
Selecting the right engine oil
depends on both the proper oil
specification and viscosity grade.
See
Recommended Fluids and
Lubricants on page 11-12.
Specification
Ask for and use engine oils that
meet the dexos1™ specification.
Engine oils that have been
approved by GM as meeting the
dexos1 specification are marked
with the dexos1 approved logo. See
www.gmdexos.com.

Black plate (14,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
10-14 Vehicle Care
Change the oil as soon as possible
within the next 1 000 km (600 mi).
It is possible that, if driving under
the best conditions, the oil life
system might indicate that an oil
change is not necessary for up to a
year. The engine oil and filter must
be changed at least once a year
and at this time the system must be
reset. Your dealer has trained
service people who will perform this
work and reset the system. It is also
important to check the oil regularly
over the course of an oil drain
interval and keep it at the proper
level.
If the system is ever reset
accidentally, the oil must be
changed at 5 000 km (3,000 mi)
since the last oil change.
Remember to reset the oil life
system whenever the oil is changed.How to Reset the Engine Oil
Life System
Reset the system whenever the
engine oil is changed so that the
system can calculate the next
engine oil change. To reset the
system:
1. Using the DIC controls on theright side of the steering wheel,
display REMAINING OIL LIFE
on the DIC. See Driver
Information Center (DIC) (Base
Level Cluster) on page 5-32 or
Driver Information Center (DIC)
(Uplevel Cluster) on page 5-35.
When remaining oil life is low,
the CHANGE ENGINE OIL
SOON message will appear on
the display. See Engine Oil
Messages on page 5-41. 2. Press
Von the DIC controls and
hold down for a few seconds to
clear the CHANGE ENGINE OIL
SOON message and reset the
oil life at 100%.
Be careful not to reset the oil life
display accidentally at any time
other than after the oil is
changed. It cannot be reset
accurately until the next oil
change.
The system is reset when the
CHANGE ENGINE OIL SOON
message is off.
If the CHANGE ENGINE OIL SOON
message comes back on when the
vehicle is started, the engine oil life
system has not been reset. Repeat
the procedure.