fuel additives BUICK ENCORE 2021 Owner's Manual

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-14607636) -
2021 - CRC - 8/18/20
Driving and Operating 163
Driving and Operating
Driving Information
Driver Behavior . . . . . . . . . . . . . . . . . . . . . . . . 164
Driving Environment . . . . . . . . . . . . . . . . . . . 164
Vehicle Design . . . . . . . . . . . . . . . . . . . . . . . . . 164
Driving for Better Fuel Economy . . . . . . . 164
Distracted Driving . . . . . . . . . . . . . . . . . . . . . 164
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . 165
Impaired Driving . . . . . . . . . . . . . . . . . . . . . . . 165
Control of a Vehicle . . . . . . . . . . . . . . . . . . . 165
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 167
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 167
Driving on Wet Roads . . . . . . . . . . . . . . . . . 167
Hill and Mountain Roads . . . . . . . . . . . . . . 168
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . 169
If the Vehicle Is Stuck . . . . . . . . . . . . . . . . . 169
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 170
Starting and Operating
New Vehicle Break-In . . . . . . . . . . . . . . . . . . 173
Ignition Positions . . . . . . . . . . . . . . . . . . . . . . 174
Starting the Engine . . . . . . . . . . . . . . . . . . . . 175
Winter Cover . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Engine Heater . . . . . . . . . . . . . . . . . . . . . . . . . 177
Retained Accessory Power (RAP) . . . . . . . 178
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 178
Shifting out of Park . . . . . . . . . . . . . . . . . . . 179Parking over Things That Burn . . . . . . . . 180
Extended Parking . . . . . . . . . . . . . . . . . . . . . . 180
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . . . . . . . . . . . 180
Running the Vehicle While Parked . . . . . 181
Automatic Transmission
Automatic Transmission . . . . . . . . . . . . . . . . 181
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . 183
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . . 183
Brakes
Antilock Brake System (ABS) . . . . . . . . . . . 184
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Hill Start Assist (HSA) . . . . . . . . . . . . . . . . . . 185
Ride Control Systems
Traction Control/Electronic Stability
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . 186
Driver Assistance Systems
Driver Assistance Systems . . . . . . . . . . . . . 188
Rear Vision Camera (RVC) . . . . . . . . . . . . . 190
Park Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191 Forward Collision Alert (FCA)
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Side Blind Zone Alert (SBZA) . . . . . . . . . . . 194
Lane Departure Warning (LDW) . . . . . . . . 195
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Recommended Fuel . . . . . . . . . . . . . . . . . . . . 196
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 196
Fuels in Foreign Countries . . . . . . . . . . . . . 197
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . 197
Filling the Tank (Capless Fuel Fill) . . . . . . 197
Filling the Tank (Capped Fuel Fill) . . . . . 198
Filling a Portable Fuel Container . . . . . . 200
Trailer Towing
General Towing Information . . . . . . . . . . 200
Conversions and Add-Ons
Add-On Electrical Equipment . . . . . . . . . . 200

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-14607636) -
2021 - CRC - 8/18/20
Driving and Operating 197
Caution (Continued)
.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.
.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 Fuels0196.
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 (Capless Fuel Fill)
An arrow on the fuel gauge indicates which
side of the vehicle the fuel door is on. See
Fuel Gauge 077.
{Warning
Fuel vapors and fuel fires burn violently
and can cause injury or death.
Follow these guidelines to help avoid
injuries to you and others:
.Read and follow all the instructions on
the fuel pump island.
(Continued)
Warning (Continued)
.Turn off the engine when refueling.
.Keep sparks, flames, and smoking
materials away from fuel.
.Do not leave the fuel pump
unattended.
.Avoid using electronic devices while
refueling.
.Do not re-enter the vehicle while
pumping fuel.
.Keep children away from the fuel
pump and never let children
pump fuel.
.Before touching the fill nozzle, touch a
metallic object to discharge static
electricity from your body.
.Fuel can spray out if the fill nozzle is
inserted too quickly. This spray can
happen if the tank is nearly full, and is
more likely in hot weather. Insert the
fill nozzle slowly and wait for any hiss
noise to stop before beginning to
flow fuel.

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-14607636) -
2021 - CRC - 8/18/20
Index 305
Electrical System (cont'd)Instrument Panel Fuse Block . . . . . . . . . . . 230
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Rear Compartment Fuse Block . . . . . . . . . 231
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
Engine
Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . . 211
Check Light (Malfunction Indicator) . . . . . 81
Compartment Overview . . . . . . . . . . . . . . . . 205
Coolant Temperature Gauge . . . . . . . . . . . . 78
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 212
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . . 281
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 210
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . . 85
Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Power Messages . . . . . . . . . . . . . . . . . . . . . . . . 89
Running While Parked . . . . . . . . . . . . . . . . . . 181
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
Event Data Recorders . . . . . . . . . . . . . . . . . . . . 292
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
Extended Parking . . . . . . . . . . . . . . . . . . . . . . . . 180
Extender, Seat Belt . . . . . . . . . . . . . . . . . . . . . . . .37
Exterior Lamp Controls . . . . . . . . . . . . . . . . . . . . 97
Exterior Lighting Battery Saver . . . . . . . . . . 102F
Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . . . . . . . 211
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Flashers, Hazard Warning . . . . . . . . . . . . . . . . . 99
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Fluid Automatic Transmission . . . . . . . . . . . . . . . 210
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Folding Seatback . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Forward Collision Alert (FCA) System . . . . 192
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Front Seat Armrest . . . . . . . . . . . . . . . . . . . . . . . .27
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Economy, Driving for Better . . . . . . . . . . . 164
Filling a Portable Fuel Container . . . . . . . 200
Filling the Tank . . . . . . . . . . . . . . . . . . . 197, 198
Foreign Countries . . . . . . . . . . . . . . . . . . . . . . 197
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Low Fuel Warning Light . . . . . . . . . . . . . . . . 85 Fuel (cont'd)
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 196
Recommended . . . . . . . . . . . . . . . . . . . . . . . . . 196
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Fuses Engine Compartment Fuse Block . . . . . . . 227
Fuses and Circuit Breakers . . . . . . . . . . . . . 226
Instrument Panel Fuse Block . . . . . . . . . . . 230
Rear Compartment Fuse Block . . . . . . . . . 231
G
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
GaugesEngine Coolant Temperature . . . . . . . . . . . . 78
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Warning Lights and Indicators . . . . . . . . . . 75
General Information Service and Maintenance . . . . . . . . . . . . . . 266
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285