open gas tank BUICK REGAL 2020 Owners Manual

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
218 Driving and Operating
Prohibited Fuels
Caution
Do not use fuels with any of the
following conditions; doing so
may damage the vehicle and void
its warranty:. For vehicles that are not
FlexFuel, fuel labeled
greater than 15% ethanol by
volume, such as mid-level
ethanol blends (16–50%
ethanol), E85, or FlexFuel.
. Fuel with any amount of
methanol, methylal,
ferrocene, and aniline.
These fuels can corrode
metal fuel system parts or
damage plastic and rubber
parts.
(Continued)
Caution (Continued)
.Fuel containing metals such
as methylcyclopentadienyl
manganese tricarbonyl
(MMT), which can damage
the emissions control
system and spark plugs.
. Fuel with a posted octane
rating of less than the
recommended fuel. Using
this fuel will lower fuel
economy and performance,
and may decrease the life of
the emissions catalyst.
Fuels in Foreign
Countries
The U.S., Canada, and Mexico post
fuel octane ratings in anti-knock
index (AKI). For fuel not to use in a
foreign country, see Prohibited
Fuels 0218.
Fuel Additives
TOP TIER Detergent Gasoline is
highly recommended for use with
your vehicle. If your country does
not have TOP TIER Detergent
Gasoline, add ACDelco Fuel
System Treatment Plus−Gasoline to
the vehicle’ s gasoline fuel tank at
every oil change or 15 000 km
(9,000 mi), whichever occurs first.
TOP TIER Detergent Gasoline and
ACDelco Fuel System Treatment
Plus−Gasoline will help keep your
vehicle’s engine fuel deposit free
and performing optimally.
Filling the Tank
An arrow on the fuel gauge
indicates which side of the vehicle
the fuel door is on. See Fuel Gauge
0 113.
{Warning
Fuel vapors and fuel fires burn
violently and can cause injury or
death.
(Continued)

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
OnStar 355
Press=to:
. Open the OnStar app on the
infotainment display. See the
infotainment manual for
information on how to use the
OnStar app.
Or
. Give OnStar Turn-by-Turn
Navigation voice commands.
. Obtain and customize the Wi-Fi
hotspot name or SSID and
password, if equipped.
Press
Qto connect to an
Advisor to:
. Verify account information or
update contact information.
. Get driving directions.
. Receive a Diagnostic check of
the vehicle's key operating
systems.
. Receive Roadside Assistance.
. Manage Wi-Fi Settings,
if equipped. Press
>to get a priority connection
to an OnStar Advisor available 24/
7 to:
. Get help for an emergency.
. Be a Good Samaritan or
respond to an AMBER Alert.
. Get assistance in severe
weather or other crisis situations
and find evacuation routes.OnStar Services
Emergency
Emergency Services require an
active safety and security plan. With
Automatic Crash Response, built-in
sensors can automatically alert a
specially trained OnStar Advisor
who is immediately connected in to
the vehicle to help.
Press
>for a priority connection to
an OnStar Advisor who can contact
emergency service providers, direct
them to your exact location, and
relay important information.
With OnStar Crisis Assist, specially
trained Advisors are available
24 hours a day, 7 days a week, to
provide a central point of contact,
assistance, and information during a
crisis.
With Roadside Assistance, Advisors
can locate a nearby service provider
to help with a flat tire, a battery
jump, or an empty gas tank.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Index 369
Frequency StatementRadio . . . . . . . . . . . . . . . . . . . . . . . . . 350
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . 210
Front Seats
Adjustment . . . . . . . . . . . . . . . . . . . . . 41
Heated and Ventilated . . . . . . . . . . 48
Front Storage . . . . . . . . . . . . . . . . . . . . 95
Front Turn Signal Lamps . . . . . . . 257
Fuel Additives . . . . . . . . . . . . . . . . . . . . . 218
Economy, Driving for Better . . . 164
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 220
Filling the Tank . . . . . . . . . . . . . . . 218
Foreign Countries . . . . . . . . . . . . 218
Gauge . . . . . . . . . . . . . . . . . . . . . . . . .113
Low Fuel Warning Light . . . . . . . 126
Management, Active . . . . . . . . . . 182
Prohibited Fuels . . . . . . . . . . . . . . 218
Recommended . . . . . . . . . . . . . . . 217
Top Tier . . . . . . . . . . . . . . . . . . . . . . 217
Fuses
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 259
Fuses and Circuit Breakers . . . 259 Fuses (cont'd)
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 263
G
Garage Door Opener . . . . . . . . . . . 143Programming . . . . . . . . . . . . . . . . . 143
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 254
Gauges Engine Coolant
Temperature . . . . . . . . . . . . . . . . .115
Engine Oil Temperature . . . . . . . .115
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . .113
Odometer . . . . . . . . . . . . . . . . . . . . . .113
Speedometer . . . . . . . . . . . . . . . . . .113
Tachometer . . . . . . . . . . . . . . . . . . . .113
Voltmeter . . . . . . . . . . . . . . . . . . . . . .116
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . 106
General Information Service and Maintenance . . . . . 322
Towing . . . . . . . . . . . . . . . . . . . . . . . . 221
Vehicle Care . . . . . . . . . . . . . . . . . . 231
Glove Box . . . . . . . . . . . . . . . . . . . . . . . 94
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . 344
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 256
Hazard Warning Flashers . . . . . . . 150
Head Restraints . . . . . . . . . . . . . . . . . 39
Head-up Display . . . . . . . . . . . . . . . . 133
Headlamps . . . . . . . . . . . . . . . . . . . . . 256Adaptive ForwardLighting (AFL) . . . . . . . . . . . . . . . 149
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 255
Automatic . . . . . . . . . . . . . . . . . . . . . 148
Bulb Replacement . . . . . . . . . . . . 256
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . 148
Flash-to-Pass . . . . . . . . . . . . . . . . . 148
High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . . . 256
High-Beam On Light . . . . . . . . . . 127
High/Low Beam Changer . . . . . 148
Lamps On Reminder . . . . . . . . . 128
Heated Steering Wheel . . . . . . . . . . . . . . . 100
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Heated Mirrors . . . . . . . . . . . . . . . . . . . 32
Heater
Engine . . . . . . . . . . . . . . . . . . . . . . . . 179
Heating . . . . . . . . . . . . . . . . . . . . . . . . . 156