2018 GMC SAVANA towing

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
12 In Brief
SeeAirbag On-Off Switch 063 for
important information.
Mirror Adjustment
Exterior Mirrors
Vehicles with manual outside
mirrors can be adjusted by moving
the mirror up and down or left and
right so you can see a little of the
side of the vehicle, and a clear view
of objects behind you.
If equipped with power mirrors,
select each mirror by turning the
knob clockwise for the passenger
side mirror or counterclockwise for the driver side mirror. Adjust the
mirror angle by moving the knob in
the desired direction.
Keep the selector switch in the
center position when not adjusting
either outside mirror.
If equipped, towing mirrors can be
adjusted manually for a clear view
of the objects behind you.
Manually fold the mirrors inward to
prevent damage when going
through an automatic car wash. To
fold, pull the mirror toward the
vehicle. Push the mirror outward to
return it to the original position.
Interior Mirror
Adjust the rearview mirror for a clear
view of the area behind your
vehicle.
Push the tab forward for daytime
use and pull it rearward for
nighttime use to avoid glare of the
headlamps from behind.
See
Manual Rearview Mirror 037.
Steering Wheel
Adjustment

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
16 In Brief
Vehicles with Air Conditioning
1. Fan Control
2. Temperature Control
3. Air Delivery Mode Control
4. Rear Window Defogger
See Climate Control Systems 0154.
See Rear Heating System 0156,
if equipped or Rear Climate Control
System 0156, if equipped.
Transmission
Range Selection Mode
If equipped, Range Selection Mode
helps control the vehicle's
transmission and vehicle speed while driving downhill or towing a
trailer by letting you select a desired
range of gears.
To use this feature:
1. Move the shift lever to M (Manual Mode).
2. Press the +/− buttons on the
shift lever, to select the desired
range of gears for current
driving conditions.
When M (Manual Mode) is selected,
the transmission will downshift and
a number displays in the Driver
Information Center (DIC) next to the
M indicating the current gear.
Grade Braking is not available when
Range Selection Mode is active.
See Tow/Haul Mode 0184.
While using Range Selection Mode,
cruise control and the Tow/Haul
Mode can be used. See Manual
Mode 0183.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
36 Keys, Doors, and Windows
Exterior Mirrors
Convex Mirrors
{Warning
A convex mirror can make things,
like other vehicles, look farther
away than they really are. If you
cut too sharply into the right lane,
you could hit a vehicle on the
right. Check the inside mirror or
glance over your shoulder before
changing lanes.
The passenger side mirror is convex
shaped. A convex mirror's surface is
curved so more can be seen from
the driver seat.
Manual Mirrors
Adjust the mirrors by moving the
mirror up and down and left and
right.
The mirrors can be manually folded
in or out. On the lower portion of each mirror
is an auxiliary convex mirror.
A convex mirror's surface is curved
so you can see more from the driver
seat. The auxiliary convex mirrors
can be adjusted manually by
moving the mirror.
Trailer-Tow Mirrors
Vehicles with towing mirrors can be
adjusted manually for a clear view
of the objects behind you.
On the lower portion of each mirror
there is an auxiliary convex mirror
that can be adjusted manually to
provide an extended field of view.The mirrors can be manually folded
in or out.
Power Mirrors
If equipped with power mirrors,
select each mirror by turning the
knob clockwise for the passenger
side mirror or counterclockwise for
the driver side mirror. The center
position is neutral.
Adjust the mirror angle by moving
the knob in the desired direction.
The auxiliary convex mirrors can
only be adjusted manually.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
104 Instruments and Controls
Malfunctions are often indicated by
the system before any problem is
noticeable. Being aware of the light
and seeking service promptly when
it comes on may prevent damage.
Caution
If the vehicle is driven continually
with this light on, the emission
control system may not work as
well, the fuel economy may be
lower, and the vehicle may not
run smoothly. This could lead to
costly repairs that might not be
covered by the vehicle warranty.
Caution
Modifications to the engine,
transmission, exhaust, intake,
or fuel system, or the use of
replacement tires that do not
meet the original tire
specifications, can cause this light
to come on. This could lead to(Continued)
Caution (Continued)
costly repairs not covered by the
vehicle warranty. This could also
affect the vehicle’s ability to pass
an Emissions Inspection/
Maintenance test. See
Accessories and Modifications
0213.
If the light is flashing : A
malfunction has been detected that
could damage the emission control
system and increase vehicle
emissions. Diagnosis and service
may be required.
To help prevent damage, reduce
vehicle speed and avoid hard
accelerations and uphill grades.
If towing a trailer, reduce the
amount of cargo being hauled as
soon as possible.
If the light continues to flash, find a
safe place to park. Turn the vehicle
off and wait at least 10 seconds
before restarting the engine. If the
light is still flashing, follow the previous guidelines and see your
dealer for service as soon as
possible.
If the light is on steady :
A
malfunction has been detected.
Diagnosis and service may be
required.
Check the following:
. A loose or missing fuel cap may
cause the light to come on. See
Filling the Tank 0198. A few
driving trips with the cap
properly installed may turn the
light off.
. Poor fuel quality can cause
inefficient engine operation and
poor driveability, which may go
away once the engine is warmed
up. If this occurs, change the
fuel brand. It may require at
least one full tank of the proper
fuel to turn the light off. See Fuel
0 195.
If the light remains on, see your
dealer.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
106 Instruments and Controls
floor. It could take longer to stop.
If the light is still on, have the
vehicle towed for service. See
Towing the Vehicle0287.
{Warning
The brake system might not be
working properly if the brake
system warning light is on.
Driving with the brake system
warning light on can lead to a
crash. If the light is still on after
the vehicle has been pulled off
the road and carefully stopped,
have the vehicle towed for
service.
Antilock Brake System
(ABS) Warning Light
This light comes on briefly when the
engine is started.
If the light does not come on, have it
fixed so it will be ready to warn if
there is a problem.
If the light comes on while driving,
stop as soon as it is safely possible
and turn off the vehicle. Then start
the engine again to reset the
system. If the ABS light stays on,
or comes on again while driving, the
vehicle needs service.
If the ABS light is the only light on,
the vehicle has regular brakes, but
the antilock brakes are not
functioning.
If both the ABS and the brake
system warning light are on, the
vehicle's antilock brakes are not
functioning and there is a problem
with the regular brakes. See your
dealer for service.
See Brake System Warning Light
0 105.Tow/Haul Mode Light
For vehicles with the Tow/Haul
Mode feature, this light comes on
when the Tow/Haul Mode has been
activated.
See Tow/Haul Mode 0184.
StabiliTrak OFF Light
This light comes on briefly while
starting the engine. If it does not,
have the vehicle serviced by your
dealer.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
160 Driving and Operating
Driving and
Operating
Driving Information
Distracted Driving . . . . . . . . . . . . 161
Defensive Driving . . . . . . . . . . . . . 161
Drunk Driving . . . . . . . . . . . . . . . . . 162
Control of a Vehicle . . . . . . . . . . . 162
Braking . . . . . . . . . . . . . . . . . . . . . . . 162
Steering . . . . . . . . . . . . . . . . . . . . . . 162
Off-Road Recovery . . . . . . . . . . . 163
Loss of Control . . . . . . . . . . . . . . . 163
Driving on Wet Roads . . . . . . . . 164
Hill and Mountain Roads . . . . . 165
Winter Driving . . . . . . . . . . . . . . . . 165
If the Vehicle Is Stuck . . . . . . . . 166
Vehicle Load Limits . . . . . . . . . . . 167
Starting and Operating
New Vehicle Break-In . . . . . . . . . 171
Ignition Positions . . . . . . . . . . . . . 172
Starting the Engine . . . . . . . . . . . 173
Fast Idle System . . . . . . . . . . . . . 174
Retained AccessoryPower (RAP) . . . . . . . . . . . . . . . . 175
Engine Coolant Heater . . . . . . . 175
Shifting Into Park . . . . . . . . . . . . . 177
Shifting out of Park . . . . . . . . . . . 178 Parking over Things
That Burn . . . . . . . . . . . . . . . . . . . 178
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 179
Running the Vehicle WhileParked . . . . . . . . . . . . . . . . . . . . . . 179
Automatic Transmission
Automatic Transmission . . . . . . 180
Manual Mode . . . . . . . . . . . . . . . . . 183
Tow/Haul Mode . . . . . . . . . . . . . . . 184
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . . 184
Parking Brake . . . . . . . . . . . . . . . . 185
Brake Assist . . . . . . . . . . . . . . . . . . 186
Hill Start Assist (HSA) . . . . . . . . 186
Ride Control Systems
Traction Control/Electronic Stability Control . . . . . . . . . . . . . 186
Locking Rear Axle . . . . . . . . . . . . 188
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . 189
Driver Assistance Systems
Rear Vision Camera (RVC) . . . 191
Parking Assist . . . . . . . . . . . . . . . . 192 Side Blind Zone
Alert (SBZA) . . . . . . . . . . . . . . . . 193
Fuel
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 195
California FuelRequirements . . . . . . . . . . . . . . . 196
Fuels in Foreign Countries . . . 196
Fuel Additives . . . . . . . . . . . . . . . . 196
E85 or FlexFuel . . . . . . . . . . . . . . 197
Filling the Tank . . . . . . . . . . . . . . . 198
Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . . 199
Trailer Towing
General TowingInformation . . . . . . . . . . . . . . . . . . 200
Driving Characteristics and Towing Tips . . . . . . . . . . . . . . . . . 200
Trailer Towing . . . . . . . . . . . . . . . . 202
Towing Equipment . . . . . . . . . . . . 207
Trailer Sway Control (TSC) . . . 209
Conversions and Add-Ons
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . 210

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
Driving and Operating 167
If stuck too severely for the traction
system to free the vehicle, turn the
traction system off and use the
rocking method. SeeTraction
Control/Electronic Stability Control
0 186.
{Warning
If the vehicle's tires spin at high
speed, they can explode, and you
or others could be injured. The
vehicle can overheat, causing an
engine compartment fire or other
damage. Spin the wheels as little
as possible and avoid going
above 56 km/h (35 mph).
Rocking the Vehicle to Get
it Out
Turn the steering wheel left and
right to clear the area around the
front wheels. Turn off any traction
system. Shift back and forth
between R (Reverse) and a low
forward gear, spinning the wheels
as little as possible. To prevent
transmission wear, wait until the wheels stop spinning before shifting
gears. Release the accelerator
pedal while shifting, and press
lightly on the accelerator pedal
when the transmission is in gear.
Slowly spinning the wheels in the
forward and reverse directions
causes a rocking motion that could
free the vehicle. If that does not get
the vehicle out after a few tries, it
might need to be towed out. If the
vehicle does need to be towed out,
see
Towing the Vehicle 0287.
Vehicle Load Limits
It is very important to know how
much weight the vehicle can
carry. This weight is called the
vehicle capacity weight and
includes the weight of all
occupants, cargo, and all
nonfactory-installed options.
Two labels on the vehicle may
show how much weight it was
designed to carry, the Tire and
Loading Information label and
the Certification/Tire label.
{Warning
Do not load the vehicle any
heavier than the Gross
Vehicle Weight Rating
(GVWR), or either the
maximum front or rear Gross
Axle Weight Rating (GAWR).
This can cause systems to
break and change the way the
vehicle handles. This could
cause loss of control and a
crash. Overloading can also
reduce stopping distance,
damage the tires, and shorten
the life of the vehicle.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-11374214) -
2018 - CRC - 2/2/18
Driving and Operating 169
exceed the available cargo
and luggage load capacity
calculated in Step 4.
6.If your vehicle will be towing
a trailer, load from your
trailer will be transferred to
your vehicle. Consult this
manual to determine how
this reduces the available
cargo and luggage load
capacity of your vehicle.”
SeeTrailer Towing 0202 for
important information on towing a
trailer, towing safety rules and
trailering tips.Example 1
1. Vehicle Capacity Weight for
Example 1 = 453 kg
(1,000 lbs)
2. Subtract Occupant Weight @ 68 kg (150 lbs) × 2 =
136 kg (300 lbs)
3. Available Occupant and Cargo Weight = 317 kg
(700 lbs)
Example 2
A. Vehicle Capacity Weight for Example 2 = 453 kg (1,000 lbs)
B. Subtract Occupant Weight @ 68 kg (150 lbs) × 5 = 136 kg
(750 lbs)
C. Available Cargo Weight = 113 kg (250 lbs)