Page 54 of 399
Black plate (23,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Keys, Doors, and Windows 2-23
Dirt and debris may collect on the
sunroof seal or in the track. This
could cause an issue with sunroof
operation or noise. It could also plug
the water drainage system.
Periodically open the sunroof and
remove any obstacles or loose
debris. Wipe the sunroof seal and
roof sealing area using a clean
cloth, mild soap, and water. Do not
remove grease from the sunroof.
Sunshade
The sunshade is manually operated.
Close or open the sunshade by
sliding. When the sunroof is
opened, the sunshade is
always open.Safety Function
If the sunroof has any resistance
during automatic closing, it will
immediately stop and reverse.
To override the safety function,
press and hold the close sunroof
switch. The sunroof closes without
the safety function. To stop the
movement, release the switch.
Page 345 of 399

Black plate (4,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
11-4 Service and Maintenance
.Visually inspect windshield wiper
blades for wear, cracking,
or contamination. SeeExterior
Care on page 10-85. Replace
worn or damaged wiper blades.
See Wiper Blade Replacement
on page 10-29.
.Check tire inflation pressures.
See Tire Pressure on
page 10-48.
.Inspect tire wear. See Tire
Inspection on page 10-54.
.Visually check for fluid leaks.
.Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter on
page 10-16.
.Inspect brake system.
.Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of
wear. See Exterior Care on
page 10-85.
.Check restraint system
components. See Safety System
Check on page 3-16.
.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 on page 10-85.
.Check starter switch. See Starter
Switch Check on page 10-28.
.Check automatic transmission
shift lock control function. See
Automatic Transmission Shift
Lock Control Function Check on
page 10-28.
.Check ignition transmission lock.
See Ignition Transmission Lock
Check on page 10-29.
.Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check on
page 10-29.
.Check accelerator pedal for
damage, high effort, or binding.
Replace if needed.
.Visually inspect gas strut for
signs of wear, cracks, or other
damage. Check the hold open
ability of the strut. See your
dealer if service is required.
.Check tire sealant expiration
date, if equipped. See Tire
Sealant and Compressor Kit on
page 10-64.
.Inspect sunroof track and seal,
if equipped. See Sunroof on
page 2-22.
Page 396 of 399

Black plate (11,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
INDEX i-11
Storage AreasCenter Console . . . . . . . . . . . . . . . . 4-2
Convenience Net . . . . . . . . . . . . . . 4-3
Glove Box . . . . . . . . . . . . . . . . . . . . . 4-1
Instrument Panel . . . . . . . . . . . . . . 4-1
Storage Compartments . . . . . . . . . 4-1
Storing the Tire Sealant and Compressor Kit . . . . . . . . . 10-71
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 9-9
Summer Tires . . . . . . . . . . . . . . . . 10-42
Sun Visors . . . . . . . . . . . . . . . . . . . . . 2-22
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . iv
System Active Emergency Braking . . . . 9-54
Forward CollisionAlert (FCA) . . . . . . . . . . . . . . . . . . 9-52
Infotainment . . . . . . . . . . . . 7-1, 13-15
Systems Driver Assistance . . . . . . . . . . . . . 9-48T
Tachometer . . . . . . . . . . . . . . . . . . . . 5-15
TaillampsBulb Replacement . . . . . . . . . . 10-32
Text Telephone (TTY) Users . . . 13-4
Theft-Deterrent Systems . . . . . . . 2-17 Immobilizer . . . . . . . . . . . . . . . . . . . 2-17
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 10-40 All-Season . . . . . . . . . . . . . . . . . . 10-41
Buying New Tires . . . . . . . . . . . 10-57
Chains . . . . . . . . . . . . . . . . . . . . . . 10-61
Changing . . . . . . . . . . . . . . . . . . . 10-71
Compact Spare . . . . . . . . . . . . . 10-76
Designations . . . . . . . . . . . . . . . 10-45
Different Size . . . . . . . . . . . . . . . 10-58
If a Tire Goes Flat . . . . . . . . . . 10-62
Inflation Monitor System . . . . 10-51
Inspection . . . . . . . . . . . . . . . . . . 10-54
Messages . . . . . . . . . . . . . . . . . . . . 5-46
Pressure . . . . . . . . . . . . . . . . . . . . 10-50
Pressure Light . . . . . . . . . . . . . . . . 5-28
Pressure Monitor System . . . 10-50 Tires (cont'd)
Rotation . . . . . . . . . . . . . . . . . . . . 10-55
Sealant and
Compressor Kit . . . . . . . . . . . 10-64
Sealant and Compressor Kit, Storing . . . . . . . . . . . . . . . . 10-71
Sidewall Labeling . . . . . . . . . . . 10-42
Terminology and Definitions . . . . . . . . . . . . . . . . . 10-45
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . 10-59
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . 10-60
Wheel Replacement . . . . . . . . 10-61
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . 10-56
Winter . . . . . . . . . . . . . . . . . . . . . . 10-42
Towing
General Information . . . . . . . . . . 9-64
Recreational Vehicle . . . . . . . . 10-82
Vehicle . . . . . . . . . . . . . . . . . . . . . 10-81
Track Events and Competitive Driving . . . . . . . . . . . 9-6