Page 46 of 344

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9804381) - 2017 - crc - 8/30/16
Keys, Doors, and Windows 45
Express-Open/Express-Close :
Press
e(1) to the second detent
and release to express-open the
sunroof with the safety function
enabled. Press
g(1) to the
second detent and release to
express-close. To stop the
movement, press the switch again.
Vent : Press
f(2) to vent the
sunroof. Press
gto close the
sunroof vent.
If an object is in the path of the
sunroof while it is closing, the
automatic reversal feature will
detect the object and stop the
sunroof. The sunroof will then return
to the full-open or vent position.
The sunroof cannot be opened or
closed if the vehicle has an
electrical failure.
Initializing
After a power failure, the sunroof
operation may be limited. Have the
system initialized by a dealer
technician. Automatic Reversal System
The sunroof is equipped with an
automatic reversal system that is
only active when the sunroof is
being operated in express-close
mode. If an object is in the path of
the sunroof while it is express
closing, the reversal system will
detect the object and stop. In the
event of closing difficulties like frost
or other conditions, it is possible to
override the reversal system. To
override the reversal system, close
in manual mode. To stop the
movement, release the switch.
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.
Page 297 of 344
Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9804381) - 2017 - crc - 8/30/16
296 Service and Maintenance
.Check ignition transmission lock.
See Ignition Transmission Lock
Check 0233.
. Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check
0 233.
. 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
0 265.
. Inspect sunroof track and seal,
if equipped. See Sunroof044.
Page 343 of 344

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9804381) - 2017 - crc - 8/30/16
342 Index
Steering . . . . . . . . . . . . . . . . . . . . . . . . 158Heated Wheel . . . . . . . . . . . . . . . . . . 96
Wheel Adjustment . . . . . . . . . . . . . . 96
Wheel Controls . . . . . . . . . . . . . . . . . 96
Stoplamps and Back-up Lamps Bulb Replacement . . . . . . . . . . . . 236
Storage
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Storage Areas Center Console . . . . . . . . . . . . . . . . . 93
Convenience Net . . . . . . . . . . . . . . . 94
Glove Box . . . . . . . . . . . . . . . . . . . . . . 92
Instrument Panel . . . . . . . . . . . . . . . 92
Storage Compartments . . . . . . . . . . 92
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . 272
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 162
Summer Tires . . . . . . . . . . . . . . . . . . 245
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 44
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Forward CollisionAlert (FCA) . . . . . . . . . . . . . . . . . . 198
Infotainment . . . . . . . . . . . . . 149, 322
Systems Driver Assistance . . . . . . . . . . . . . 195T
Tachometer . . . . . . . . . . . . . . . . . . . . . 107
TaillampsBulb Replacement . . . . . . . . . . . . 236
Text Telephone (TTY) Users . . . . 312
Theft-Deterrent Systems . . . . . 39, 40
Immobilizer . . . . . . . . . . . . . . . . . . . . . 39
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243 All-Season . . . . . . . . . . . . . . . . . . . . 244
Buying New Tires . . . . . . . . . . . . . 259
Chains . . . . . . . . . . . . . . . . . . . . . . . . 263
Changing . . . . . . . . . . . . . . . . . . . . . 272
Compact Spare . . . . . . . . . . . . . . . 277
Designations . . . . . . . . . . . . . . . . . 247
Different Size . . . . . . . . . . . . . . . . . 260
If a Tire Goes Flat . . . . . . . . . . . . 263
Inspection . . . . . . . . . . . . . . . . . . . . 257
Low Profile . . . . . . . . . . . . . . . . . . . 244
Messages . . . . . . . . . . . . . . . . . . . . 132
Pressure . . . . . . . . . . . . . . . . . 251, 252
Pressure Light . . . . . . . . . . . . . . . . .117
Pressure Monitor Operation . . 253
Pressure Monitor System . . . . . 252
Rotation . . . . . . . . . . . . . . . . . . . . . . 257
Sealant and
Compressor Kit . . . . . . . . . . . . . 265 Tires (cont'd)
Sealant and Compressor
Kit, Storing . . . . . . . . . . . . . . . . . . 272
Sidewall Labeling . . . . . . . . . . . . . 245
Terminology and Definitions . . 248
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 261
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 262
Wheel Replacement . . . . . . . . . . 262
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 258
Winter . . . . . . . . . . . . . . . . . . . . . . . . 244
Towing
General Information . . . . . . . . . . 209
Recreational Vehicle . . . . . . . . . . 282
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 281
Track Events and
Competitive Driving . . . . . . . . . . . 159
Traction Control System (TCS)/StabiliTrak
®Light . . . . . . . . . . . . .116
Off Light . . . . . . . . . . . . . . . . . . . . . . .115
Selective Ride Control . . . . . . . . 185
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . 183
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . 176