2012 BUICK REGAL engine

Black plate (2,1)Buick Regal Owner Manual - 2012
2012 Buick Regal Owner ManualM
Driving and Operating. . . . . . . . 9-1
Driving Information . . . . . . . . . . . . . 9-2
Starting and Operating . . . . . . . 9-15
Engine Exhaust . . . . . . . . . . . . . . 9-27
Automatic Transmission . . . . . . 9-28
Manual Transmission . . . . . . . . . 9-32
Brakes . . . . . . . . . . . . . . . . . . . . . . . 9-33
Ride Control Systems . . . . . . . . 9-37
Cruise Control . . . . . . . . . . . . . . . . 9-42
Object Detection Systems . . . . 9-44
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 9-46
Towing . . . . . . . . . . . . . . . . . . . . . . . 9-52
Conversions and Add-Ons . . . 9-52 Vehicle Care
. . . . . . . . . . . . . . . . . 10-1
General Information . . . . . . . . . . 10-2
Vehicle Checks . . . . . . . . . . . . . . . 10-4
Headlamp Aiming . . . . . . . . . . . 10-33
Bulb Replacement . . . . . . . . . . 10-33
Electrical System . . . . . . . . . . . . 10-37
Wheels and Tires . . . . . . . . . . . 10-44
Jump Starting . . . . . . . . . . . . . . . 10-89
Towing . . . . . . . . . . . . . . . . . . . . . . 10-95
Appearance Care . . . . . . . . . . . 10-98
Service and Maintenance . . . 11-1
General Information . . . . . . . . . . 11-1
Maintenance Schedule . . . . . . . 11-3
Special Application
Services . . . . . . . . . . . . . . . . . . . . 11-9
Additional Maintenance
and Care . . . . . . . . . . . . . . . . . . . . 11-9
Recommended Fluids, Lubricants, and Parts . . . . . . 11-13
Maintenance Records . . . . . . . 11-16 Technical Data
. . . . . . . . . . . . . . . 12-1
Vehicle Identification . . . . . . . . . 12-1
Vehicle Data . . . . . . . . . . . . . . . . . . 12-2
Customer Information . . . . . . . 13-1
Customer Information . . . . . . . . 13-1
Reporting Safety Defects . . . . 13-17
Vehicle Data Recording and
Privacy . . . . . . . . . . . . . . . . . . . . 13-18
OnStar . . . . . . . . . . . . . . . . . . . . . . . 14-1
OnStar Overview . . . . . . . . . . . . . 14-1
OnStar Services . . . . . . . . . . . . . . 14-2
OnStar Additional Information . . . . . . . . . . . . . . . . . . 14-5
Index . . . . . . . . . . . . . . . . . . . . . i-1

Black plate (5,1)Buick Regal Owner Manual - 2012
Introduction v
Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. For more
information on the symbol, refer to
the Index.
9:Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
%:Audio Steering Wheel Controls
or OnStar®
$: Brake System Warning Light
":Charging System
I:Cruise Control
B: Engine Coolant Temperature
O:Exterior Lamps
#:Fog Lamps
.: Fuel Gauge
+:Fuses
3: Headlamp High/Low-Beam
Changer
(: Heated Steering Wheel
j:LATCH System Child
Restraints
*: Malfunction Indicator Lamp
::Oil Pressure
}:Power
/:Remote Vehicle Start
>:Safety Belt Reminders
7:Tire Pressure Monitor
d:Traction Control/StabiliTrak®
M:Windshield Washer Fluid

Black plate (1,1)Buick Regal Owner Manual - 2012
In Brief 1-1
In Brief
Instrument Panel
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information
Initial Drive Information . . . . . . . . 1-4
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . 1-4
Remote Vehicle Start . . . . . . . . . 1-5
Door Locks . . . . . . . . . . . . . . . . . . . 1-5
Trunk Release . . . . . . . . . . . . . . . . 1-6
Windows . . . . . . . . . . . . . . . . . . . . . . 1-6
Seat Adjustment . . . . . . . . . . . . . . 1-7
Heated Seats . . . . . . . . . . . . . . . . . 1-8
Head Restraint Adjustment . . . . 1-8
Safety Belts . . . . . . . . . . . . . . . . . . . 1-9
Passenger Sensing System . . . 1-9
Mirror Adjustment . . . . . . . . . . . . . 1-9
Steering Wheel Adjustment . . . . . . . . . . . . . . . . . 1-10
Interior Lighting . . . . . . . . . . . . . . 1-10
Exterior Lighting . . . . . . . . . . . . . 1-11
Windshield Wiper/Washer . . . . 1-12
Climate Controls . . . . . . . . . . . . . 1-13
Transmission . . . . . . . . . . . . . . . . 1-15
Vehicle Features
Radio(s) . . . . . . . . . . . . . . . . . . . . . 1-16
Satellite Radio . . . . . . . . . . . . . . . 1-17
Portable Audio Devices . . . . . . 1-17
Bluetooth
®. . . . . . . . . . . . . . . . . . . 1-18
Steering Wheel Controls . . . . . 1-18
Cruise Control . . . . . . . . . . . . . . . 1-19
Navigation System . . . . . . . . . . . 1-19
Driver Information
Center (DIC) . . . . . . . . . . . . . . . 1-19
Vehicle Personalization . . . . . . 1-20
Ultrasonic Parking Assist . . . . 1-20
Power Outlets . . . . . . . . . . . . . . . 1-20
Sunroof . . . . . . . . . . . . . . . . . . . . . . 1-21
eAssist Features
eAssist®Overview . . . . . . . . . . . 1-21
High Voltage Safety
Information . . . . . . . . . . . . . . . . . 1-22
Driver Efficiency Gauge . . . . . . 1-23
Automatic Engine Start/Stop Feature . . . . . . . . . . . . . . . . . . . . . 1-23
Regenerative Braking . . . . . . . . 1-23
Battery . . . . . . . . . . . . . . . . . . . . . . . 1-24
Service . . . . . . . . . . . . . . . . . . . . . . 1-24
Performance and Maintenance
Traction Control System (TCS) . . . . . . . . . . . . . . 1-24
StabiliTrak
®System . . . . . . . . . 1-24
Tire Pressure Monitor . . . . . . . . 1-25
Tire Sealant and Compressor Kit . . . . . . . . . . . . . 1-25
Engine Oil Life System . . . . . . 1-26
Fuel E85 (85% Ethanol) . . . . . 1-26
Driving for Better Fuel Economy . . . . . . . . . . . . . . . . . . . 1-26
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . 1-26
OnStar
®. . . . . . . . . . . . . . . . . . . . . 1-27

Black plate (5,1)Buick Regal Owner Manual - 2012
In Brief 1-5
7:Press and release one time to
locate the vehicle. Press and hold
for at least two seconds to sound
the panic alarm. Press again to
cancel the panic alarm.
See Keys on page 2‑2 andRemote
Keyless Entry (RKE) System
Operation on page 2‑3.
Remote Vehicle Start
For vehicles with this feature, the
engine can be started from outside
the vehicle.
Starting the Vehicle
1. Aim the RKE transmitter at the vehicle.
2. Press and release
Q.
3. Immediately after completing Step 2, press and hold
/until
the turn signal lamps flash, or for
about two seconds if the vehicle
is not in view. When the engine starts, the parking
lamps will turn on and remain on as
long as the engine is running. The
doors will be locked and the climate
control system may come on.
The engine will continue to run for
10 minutes. Repeat the steps for a
10-minute time extension. Remote
start can be extended only once.
Canceling a Remote Start
To cancel a remote start, do one of
the following:
.Aim the RKE transmitter at the
vehicle and press and hold
/
until the parking lamps turn off.
.Turn on the hazard warning
flashers.
.Turn the vehicle on and then off.
See Remote Vehicle Start on
page 2‑8.
Door Locks
To lock or unlock the door, use the
Remote Keyless Entry (RKE)
transmitter or the key from outside
the vehicle, and the door lock knob
or switch from inside the vehicle.
From inside the vehicle, pull the
door handle once to unlock it and a
second time to open it.
See Door Locks on page 2‑9 for
additional information.

Black plate (21,1)Buick Regal Owner Manual - 2012
In Brief 1-21
Sunroof
For vehicles with a sunroof, the
sunroof only operates when the
ignition is in ON/RUN or ACC/
ACCESSORY or in Retained
Accessory Power (RAP). See
Retained Accessory Power (RAP)
on page 9‑24for more information.
To open or close the sunroof, press
switch (A) to the first detent position. To express open or close the
sunroof with the safety function
enabled, press the open or close
sunroof switch (A) to the second
detent position and release. To stop
the movement, press the switch
again.
To automatically tilt or close the
sunroof, press the tilt open or close
sunroof switch (B).
If an object is in the path of the
sunroof while it is closing, the
anti-pinch feature will detect the
object and stop the sunroof. The
sunroof will then return to the
full-open or vent position.
The sunroof glass panel cannot be
opened or closed if the vehicle has
an electrical failure.
See
Sunroof on page 2‑19 for more
information.
eAssist Features
eAssist®Overview
If the vehicle has eAssist, there are
several additional features which
contribute to increased efficiency.
Vehicles with eAssist have an
automatic engine start/stop feature.
This feature saves fuel by shutting
the engine off when the vehicle is
stopped. When the engine shuts off
automatically, all the accessories
will continue to operate normally. In
very hot or cold conditions, the
engine will only shut off
automatically part of the time. See
Starting the Engine on page 9‑19.
There are two air conditioning
settings available. The comfort
setting maximizes cabin comfort.
The eco setting maximizes
efficiency allowing more frequent,
and longer engine stops than the
comfort setting. See Dual Automatic
Climate Control System on
page 8‑3.

Black plate (22,1)Buick Regal Owner Manual - 2012
1-22 In Brief
This vehicle has a Hill Start Assist
(HSA) feature, which may be useful
when the vehicle is stopped on a
grade. SeeHill Start Assist (HSA)
on page 9‑37.
Vehicles with eAssist have a slightly
different instrument cluster, which
includes an efficiency gauge, and
an AUTO STOP indicator on the
tachometer. See Instrument Cluster
on page 5‑9. There is also a Power
Flow Gauge in the Driver
Information Center (DIC). See
Driver Information Center (DIC) on
page 5‑25.
The eAssist system uses a high
voltage battery, which is cooled with
air drawn from the vehicle interior.
The cold air intake for the battery is
located behind the rear seat, on the
filler panel. Do not cover the intake.
See Battery on page 10‑29.
High Voltage Safety
Information
eAssist vehicles have a standard
12-volt battery and a high voltage
battery. Only a trained service
technician with the proper
knowledge and tools should inspect,
test, or replace the high voltage
battery. See your dealer if the high
voltage battery needs service.
The negative 12-volt battery cable
and the high voltage cable in the
engine compartment are clearly
labeled. In emergency situations,
first responders can cut those
cables to disable the high voltage
battery system.

Black plate (23,1)Buick Regal Owner Manual - 2012
In Brief 1-23
Driver Efficiency Gauge
This gauge assists in driving
efficiently and may vary during
normal operation.
To maximize efficiency, keep the
gauge pointed in the solid green
zone in the center of the gauge.
SeeDriver Efficiency Gauge on
page 5‑12 for more information.
Automatic Engine
Start/Stop Feature
Vehicles with eAssist have an
automatic engine start/stop feature.
After the engine is started and has
reached operating temperature, the
auto stop feature may cause the
engine to turn off when the brake
pedal is applied and the vehicle
comes to a complete stop. When
the brake pedal is released, or the
accelerator pedal is applied, the
engine will restart. The engine will
continue to run until the next
auto stop.
To restart the engine during the auto
stop, release the brake pedal or
press the accelerator pedal. The
engine starts immediately. The
vehicle continues to run until the
next stop. AUTO STOP on the tachometer
signifies that the engine is in auto
stop mode. See
Tachometer on
page 5‑11 for more information.
A chime will sound when the driver
door is opened while in auto stop
mode. Remember to shift to P (Park)
and turn the ignition to LOCK/OFF
before exiting the vehicle.
See Starting the Engine on
page 9‑19.
Regenerative Braking
Regenerative braking takes some of
the energy from the moving vehicle
and turns it into electrical energy.
This energy is then stored in the
vehicle's high voltage battery
system, contributing to increased
fuel efficiency.
The system works whenever the
accelerator pedal is released, and
increases the energy captured as
more brake pedal is applied.

Black plate (26,1)Buick Regal Owner Manual - 2012
1-26 In Brief
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. Turn the ignition to ON/RUN withthe engine off.
2. Press the DIC MENU button on the turn signal lever to enter the
Vehicle Information Menu. Use
the thumbwheel to scroll through
the menu items until you reach
REMAINING OIL LIFE.
3. Press the SET/CLR button to reset the oil life at 100%.
4. Turn the ignition to LOCK/OFF.
See Engine Oil Life System on
page 10‑13.
Fuel E85 (85% Ethanol)
Vehicles that have a FlexFuel badge
and a yellow fuel cap can use either
unleaded gasoline or ethanol fuel
containing up to 85% ethanol (E85).
See Fuel E85 (85% Ethanol) on
page 9‑49. For all other vehicles,
use only the unleaded gasoline
described under Recommended
Fuel on page 9‑47.
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.
.Always follow posted speed
limits or drive more slowly when
conditions require.
.Keep vehicle tires properly
inflated.
.Combine several trips into a
single trip.
.Replace the vehicle's tires with
the same TPC Spec number
molded into the tire's sidewall
near the size.
.Follow recommended scheduled
maintenance.
Roadside Assistance
Program
U.S.: 1-800-252-1112
TTY Users (U.S.): 1-888-889-2438
Canada: 1-800-268-6800
Mexico: 01-800-466-0818