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222 Driving and Operating
brakes might have to be used so
much that they would get hot and no
longer work well.
The vehicle can tow in D (Drive).
Use a lower gear if the transmission
shifts too often.
When towing at high altitude on
steep uphill grades, engine coolant
boils at a lower temperature than at
normal altitudes. If the engine is
turned off immediately after towing
at high altitude on steep uphill
grades, the vehicle could show
signs similar to engine overheating.
To avoid this, let the engine run
while parked, preferably on level
ground, with the transmission in
P (Park) for a few minutes before
turning the engine off. If the
overheat warning comes on, see
Engine Overheating0240.Parking on Hills
{Warning
Parking the vehicle on a hill with
the trailer attached can be
dangerous. If something goes
wrong, the rig could start to move.
People can be injured, and both
the vehicle and the trailer can be
damaged. When possible, always
park the rig on a flat surface.
If parking the rig on a hill: 1. Press the brake pedal, but do not shift into P (Park) yet. Turn
the wheels into the curb if
facing downhill or into traffic if
facing uphill.
2. Have someone place chocks under the trailer wheels.
3. When the wheel chocks are in place, release the brake pedal
until the chocks absorb
the load.
4. Reapply the brake pedal. Then apply the parking brake and
shift into P (Park). 5. Release the brake pedal.
Leaving After Parking on a Hill
1. Apply and hold the brake pedal
while you:
1.1. Start the engine.
1.2. Shift into a gear.
1.3. Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the chocks.
Maintenance When Trailer
Towing
The vehicle needs service more
often when pulling a trailer. See the
Maintenance Schedule 0303.
Things that are especially important
in trailer operation are automatic
transmission fluid, engine oil, axle
lubricant, belts, cooling system, and
brake system. Inspect these before
and during the trip.
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Driving and Operating 223
Check periodically to see that all
hitch nuts and bolts are tight.
Engine Cooling When Trailer
Towing
The cooling system may temporarily
overheat during severe operating
conditions. SeeEngine
Overheating 0240.
Trailer Towing
Before pulling a trailer, three
important considerations have to do
with weight:
.
Weight of the trailer.
. Weight of the trailer tongue.
. Total weight on your vehicle's
tires.
Weight of the Trailer
How heavy can a trailer safely be?
It should never weigh more than
454 kg (1,000 lb). But even that can
be too heavy.
It depends on how the rig is used.
For example, speed, altitude, road
grades, outside temperature, and how much the vehicle is used to pull
a trailer are all important. It can
depend on any special equipment
on the vehicle, and the amount of
tongue weight the vehicle can carry.
See
“Weight of the Trailer Tongue”
following.
Maximum trailer weight is calculated
assuming the tow vehicle has the
driver, a front seat passenger, all the
required tow equipment, and it has
all the required trailering equipment.
The weight of additional optional
equipment, passengers, and cargo
in the tow vehicle must be
subtracted from the maximum trailer
weight.
Ask your dealer for trailering
information or advice, or write us at
our Customer Assistance Offices.
See Customer Assistance
Offices 0321.
Weight of the Trailer Tongue
The tongue load (1) of any trailer is
an important weight to measure
because it affects the total gross
weight of the vehicle. The Gross
Vehicle Weight (GVW) includes the
curb weight of the vehicle, any cargo carried in it, and the people
who will be riding in the vehicle.
If there are a lot of options,
equipment, passengers, or cargo in
the vehicle, it will reduce the tongue
weight the vehicle can carry, which
will also reduce the trailer weight the
vehicle can tow. If towing a trailer,
the tongue load must be added to
the GVW because the vehicle will
be carrying that weight, too. See
Vehicle Load Limits
0183.The trailer tongue (1) should weigh
10 % of the total loaded trailer
weight (2).
Buick Verano Owner Manual (GMNA- Localizing-U.S./Canada-10122753) -
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224 Driving and Operating
After loading the trailer, weigh the
trailer and then the tongue,
separately, to see if the weights are
proper. If they are not, adjustments
might be made by moving some
items around in the trailer.
Total Weight on Your Vehicle's
Tires
Be sure the vehicle's tires are
inflated to the upper limit for cold
tires. These numbers can be found
on the Tire and Loading Information
label. SeeVehicle Load Limits
0 183. Make sure not to go over the
GVW limit for the vehicle, including
the weight of the trailer tongue.
Towing Equipment
Hitches
Use the correct hitch equipment.
See your dealer or a hitch dealer for
assistance.
. The rear bumper on the vehicle
is not intended for hitches. Do
not attach rental hitches or other
bumper-type hitches to it. Use
only a frame-mounted hitch that
does not attach to the bumper. .
Will any holes be made in the
body of the vehicle when the
trailer hitch is installed? If so,
seal the holes when the hitch is
removed. If the holes are not
sealed, dirt, water, and deadly
carbon monoxide (CO) from the
exhaust can get into the vehicle.
See Engine Exhaust 0196.
Safety Chains
Always attach chains between the
vehicle and the trailer. Cross the
safety chains under the tongue of
the trailer to help prevent the tongue
from contacting the road if it
becomes separated from the hitch.
Leave enough slack so the rig can
turn. Never allow safety chains to
drag on the ground.
Trailer Brakes
Does the trailer have its own
brakes? Be sure to read and follow
the instructions for the trailer brakes
so they are installed, adjusted, and
maintained properly. Because the vehicle has antilock
brakes, do not tap into the vehicle's
brake system. If this is done, both
brake systems will not work well or
at all.
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Driving and Operating 225
Conversions and
Add-Ons
Add-On Electrical
Equipment
{Warning
The Data Link Connector (DLC) is
used for vehicle service and
Emission Inspection/Maintenance
testing. SeeMalfunction Indicator
Lamp (Check Engine Light)
0 107. A device connected to the
DLC —such as an aftermarket
fleet or driver-behavior tracking
device —may interfere with
vehicle systems. This could affect
vehicle operation and cause a
crash. Such devices may also
access information stored in the
vehicle’s systems.
Caution
Some electrical equipment can
damage the vehicle or cause
components to not work and
would not be covered by the
vehicle warranty. Always check
with your dealer before adding
electrical equipment.
Add-on equipment can drain the
vehicle's 12-volt battery, even if the
vehicle is not operating.
The vehicle has an airbag system.
Before attempting to add anything
electrical to the vehicle, see
Servicing the Airbag-Equipped
Vehicle 073 and Adding Equipment
to the Airbag-Equipped
Vehicle 074.
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226 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . 227
California Proposition65 Warning . . . . . . . . . . . . . . . . . 227
California Perchlorate Materials Requirements . . . . . 227
Accessories and Modifications . . . . . . . . . . . . . . . . 228
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 228
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 229
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 231
Engine Oil . . . . . . . . . . . . . . . . . . . . 232
Engine Oil Life System . . . . . . . 234
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 235
Engine Air Cleaner/Filter . . . . . . 235
Cooling System . . . . . . . . . . . . . . 236
Engine Coolant . . . . . . . . . . . . . . . 237
Engine Overheating . . . . . . . . . . 240
Washer Fluid . . . . . . . . . . . . . . . . . 241
Brakes . . . . . . . . . . . . . . . . . . . . . . . 242
Brake Fluid . . . . . . . . . . . . . . . . . . . 243
Battery - North America . . . . . . 244
Starter Switch Check . . . . . . . . . 244 Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 245
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . 245
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 245
Wiper Blade Replacement . . . . 246
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 247
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 247
Halogen Bulbs . . . . . . . . . . . . . . . . 247
Headlamps, Front Turn Signal and Parking Lamps . . . . . . . . . 247
Fog Lamps . . . . . . . . . . . . . . . . . . . 248
Taillamps, Turn Signal, Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . . . 249
License Plate Lamp . . . . . . . . . . 250
Replacement Bulbs . . . . . . . . . . . 251
Electrical System
Electrical System Overload . . . 251
Fuses and Circuit Breakers . . . 252
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 252
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 255 Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 257
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 258
All-Season Tires . . . . . . . . . . . . . . 259
Winter Tires . . . . . . . . . . . . . . . . . . 260
Low-Profile Tires . . . . . . . . . . . . . 260
Tire Sidewall Labeling . . . . . . . . 260
Tire Designations . . . . . . . . . . . . . 263
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 263
Tire Pressure . . . . . . . . . . . . . . . . . 266
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 267
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 268
Tire Inspection . . . . . . . . . . . . . . . . 271
Tire Rotation . . . . . . . . . . . . . . . . . 271
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 272
Buying New Tires . . . . . . . . . . . . . 273
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 274
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 275
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 276
Wheel Replacement . . . . . . . . . . 277
Tire Chains . . . . . . . . . . . . . . . . . . . 277
If a Tire Goes Flat . . . . . . . . . . . . 278
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Vehicle Care 227
Tire Changing . . . . . . . . . . . . . . . . 279
Compact Spare Tire . . . . . . . . . . 285
Jump Starting
Jump Starting - NorthAmerica . . . . . . . . . . . . . . . . . . . . . 286
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . 289
Recreational VehicleTowing . . . . . . . . . . . . . . . . . . . . . . 291
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . 292
Interior Care . . . . . . . . . . . . . . . . . . 297
Floor Mats . . . . . . . . . . . . . . . . . . . . 300
General Information
For service and parts needs, visit
your dealer. You will receive
genuine GM parts and GM-trained
and supported service people.
Genuine GM parts have one of
these marks:
California Proposition
65 Warning
WARNING: Most motor vehicles,
including this one, as well as many
of its service parts and fluids,
contain and/or emit chemicals
known to the State of California to cause cancer and birth defects or
other reproductive harm. Engine
exhaust, many parts and systems,
many fluids, and some component
wear by-products contain and/or
emit these chemicals.
See
Battery - North America 0244
and Jump Starting - North
America 0286.
California Perchlorate
Materials Requirements
Certain types of automotive
applications, such as airbag
initiators, safety belt pretensioners,
and lithium batteries contained in
Remote Keyless Entry transmitters,
may contain perchlorate materials.
Special handling may be necessary.
For additional information, see
www.dtsc.ca.gov/hazardouswaste/
perchlorate.
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Vehicle Care 231
Engine Compartment Overview
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232 Vehicle Care
1.Engine Air Cleaner/Filter 0235.
2. Engine Cooling Fan (Out of View). See Cooling
System 0236.
3. Engine Oil Dipstick. See Engine Oil 0232.
4. Engine Oil Fill Cap. See Engine Oil 0232.
5. Brake Fluid Reservoir. See Brake Fluid 0243.
6. Battery - North America 0244
(Under Cover).
7. Engine Coolant Surge Tank and Pressure Cap. See Engine
Coolant 0237.
8. Remote Positive (+) Terminal. See Jump Starting - North
America 0286.
9. Engine Compartment Fuse
Block 0252.
10. Windshield Washer Fluid Reservoir. See Washer
Fluid 0241.Engine Oil
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
.
Use engine oil approved to the
proper specification and of the
proper viscosity grade. See
“Selecting the Right Engine Oil”
in this section.
. Check the engine oil level
regularly and maintain the
proper oil level. See “Checking
Engine Oil” and“When to Add
Engine Oil” in this section.
. Change the engine oil at the
appropriate time. See Engine Oil
Life System 0234.
. Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
Checking Engine Oil
Check the engine oil level regularly
(every 650 km (400 mi), especially
prior to a long trip. The engine oil dipstick handle is a loop. See
Engine Compartment Overview
0
231 for the location.
{Warning
The engine oil dipstick handle
may be hot; it could burn you.
Use a towel or glove to touch the
dipstick handle.
If a low oil Driver Information Center
(DIC) message displays, check the
oil level.
Follow these guidelines:
. To get an accurate reading, park
the vehicle on level ground.
Check the engine oil level after
the engine has been off for at
least two hours. Checking the
engine oil level on steep grades
or too soon after engine shutoff
can result in incorrect readings.
Accuracy improves when
checking a cold engine prior to
starting. Remove the dipstick
and check the level.