cruise control GMC SAVANA 2020 User Guide

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
Driving and Operating 173
vehicle has this feature, see“Range
Selection Mode” underManual
Mode 0173.
1 : This position reduces vehicle
speed without using the brakes.
You can use it for major/severe
downgrades where the vehicle
would otherwise accelerate due to
steepness of grade. When you shift
to 1 (First) it provides the lowest
gear appropriate to current road
speed and continues to downshift
as the vehicle slows, eventually
downshifting to 1 (First) gear. The
transmission can be held in 1 (First)
gear using Range Selection Mode
or the shift lever. See “Range
Selection Mode” underManual
Mode 0173.
Caution
Spinning the tires or holding the
vehicle in one place on a hill
using only the accelerator pedal
may damage the transmission.
The repair will not be covered by
the vehicle warranty. If the vehicle
(Continued)
Caution (Continued)
is stuck, do not spin the tires.
When stopping on a hill, use the
brakes to hold the vehicle in
place.
Normal Mode Grade Braking
This mode is enabled when the
vehicle is started, but is not enabled
in Range Selection Mode. It assists
in maintaining desired vehicle
speeds when driving on downhill
grades by using the engine and
transmission to slow the vehicle.
The first time the system activates
for each ignition key cycle.
To disable or enable Normal Mode
Grade Braking within the current
ignition key cycle, press and hold
the Tow/Haul button for
three seconds.
For other forms of grade braking,
seeTow/Haul Mode 0174 and
Cruise Control 0179.
Manual Mode
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.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
174 Driving and Operating
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.
This number is the highest gear that
can be used. However, the vehicle
can automatically shift to lower
gears as it adjusts to driving
conditions. This means that all
gears below that number are
available. When 5 (Fifth) is selected,
1 (First) through 5 (Fifth) gears are
automatically shifted by the vehicle,
but 6 (Sixth) cannot be used until
the +/−button on the shift lever is
used to change to the gear.
Grade Braking is not available when
Range Selection Mode is active.
See Tow/Haul Mode 0174. While using Range Selection Mode,
cruise control and the Tow/Haul
Mode can be used.
Caution
Spinning the tires or holding the
vehicle in one place on a hill
using only the accelerator pedal
may damage the transmission.
The repair will not be covered by
the vehicle warranty. If the vehicle
is stuck, do not spin the tires.
When stopping on a hill, use the
brakes to hold the vehicle in
place.
Tow/Haul Mode
If equipped, Tow/Haul Mode adjusts
the transmission shift pattern to
reduce shift cycling, providing
increased performance, vehicle
control, and transmission cooling
when towing or hauling heavy loads.
Turn the Tow/Haul Mode on and off
by pressing the button on the
instrument panel. When Tow/Haul is
on, a light on the instrument cluster
will come on.
See
Tow/Haul Mode Light 095.
Also see “Tow/Haul Mode” under
Towing Equipment 0207.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
Driving and Operating 177
When the vehicle is stopped on a
grade, Hill Start Assist (HSA)
temporarily prevents the vehicle
from rolling in an unintended
direction during the transition from
brake pedal release to accelerator
pedal apply. The brakes release
when the accelerator pedal is
applied or automatically release
after a few seconds. The brakes
may also release under other
conditions. Do not rely on HSA to
hold the vehicle.
HSA is available when the vehicle is
facing uphill in a forward gear,
or when facing downhill in
R (Reverse). The vehicle must
come to a complete stop on a grade
for HSA to activate.Ride Control Systems
Traction Control/
Electronic Stability
Control
System Operation
The vehicle has a Traction Control
System (TCS) and StabiliTrak/
Electronic Stability Control (ESC),
an electronic stability control
system. These systems help limit
wheel spin and assist the driver in
maintaining control, especially on
slippery road conditions.
TCS activates if it senses any of the
drive wheels are spinning or
beginning to lose traction. When this
happens, TCS applies the brakes to
the spinning wheels and reduces
engine power to limit wheel spin.
StabiliTrak/ESC activates when the
vehicle senses a difference between
the intended path and the direction
the vehicle is actually traveling.
StabiliTrak/ESC selectively applies
braking pressure to any one of the
vehicle wheel brakes to assist thedriver in keeping the vehicle on the
intended path. Trailer Sway Control
(TSC) is also on automatically when
the vehicle is started. See
Trailer
Sway Control (TSC) 0210.
If cruise control is being used and
traction control or StabiliTrak/ESC
begins to limit wheel spin, cruise
control will disengage. Cruise
control may be turned back on when
road conditions allow.
Both systems come on
automatically when the vehicle is
started and begins to move. The
systems may be heard or felt while
they are operating or while
performing diagnostic checks. This
is normal and does not mean there
is a problem with the vehicle.
It is recommended to leave both
systems on for normal driving
conditions, but it may be necessary
to turn TCS off if the vehicle gets
stuck in sand, mud, ice, or snow.
See If the Vehicle Is Stuck 0157
and “Turning the Systems Off and
On” later in this section.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
Driving and Operating 179
StabiliTrak/ESC will automatically
turn back on if the vehicle exceeds
32 km/h (20 mph). TCS will remain
off until
gis pressed or the ignition
is cycled off then on.
The vehicle has a Trailer Sway
Control (TSC) feature and a Hill
Start Assist (HSA) feature. See
Trailer Sway Control (TSC) 0210 or
Hill Start Assist (HSA) 0176.
Adding accessories can affect the
vehicle performance. See
Accessories and Modifications
0 215.
Locking Rear Axle
Vehicles with a locking rear axle can
give more traction on snow, mud,
ice, sand, or gravel. It works like a
standard axle most of the time, but
when traction is low, this feature will
allow the rear wheel with the most
traction to move the vehicle.
Cruise Control
{Warning
Cruise control can be dangerous
where you cannot drive safely at
a steady speed. Do not use
cruise control on winding roads or
in heavy traffic.
Cruise control can be dangerous
on slippery roads. On such roads,
fast changes in tire traction can
cause excessive wheel slip, and
you could lose control. Do not use
cruise control on slippery roads.
If equipped with cruise control, a
speed of about 40 km/h (25 mph) or
more can be maintained without
keeping your foot on the
accelerator. Cruise control does not
work at speeds below about 40 km/h
(25 mph).
If the Traction Control System (TCS)
or StabiliTrak/Electronic Stability
Control (ESC) system begins to limit
wheel spin while using cruise
control, the cruise control automatically disengages. See
Traction Control/Electronic Stability
Control
0177. When road
conditions allow you to safely use it
again, cruise control can be turned
back on.
If the brakes are applied, cruise
control disengages.
I: Press to turn cruise control on
or off. The white indicator comes on
in the instrument cluster when
cruise control is turned on.
+RES : If there is a set speed in
memory, press briefly to resume that
speed or press and hold to

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
180 Driving and Operating
accelerate. If cruise control is
already active, use to increase
vehicle speed.
SET−:Press briefly to set the
speed and activate cruise control.
If cruise control is already active,
use to decrease vehicle speed.
[: Press to disengage cruise
control without erasing the set
speed from memory.
Setting Cruise Control
If
Iis on when not in use, the SET
− or +RES button could get pressed
and go into cruise when not desired.
Keep
Ioff when cruise is not
being used.
To set a speed:
1. Press
Ito turn the cruise
system on.
2. Get up to the desired speed.
3. Press and release SET−.
4. Remove your foot from the accelerator. The cruise control indicator on the
instrument cluster turns green after
cruise control has been set to the
desired speed. See
Instrument
Cluster 086.
Resuming a Set Speed
If the cruise control is set at a
desired speed and then the brakes
are applied or
[is pressed, the
cruise control is disengaged without
erasing the set speed from memory.
Once the vehicle speed reaches
about 40 km/h (25 mph) or more,
briefly press +RES. The vehicle
returns to the previous set speed.
Increasing Speed While Using
Cruise Control
If the cruise control system is
already activated:
. Press and hold +RES until the
desired speed is reached, then
release it.
. To increase vehicle speed in
small increments, briefly press
+RES. For each press, the vehicle goes about
1 km/h (Metric display) or
1 mph (English display) faster.
The speedometer reading can be
displayed in either English or metric
units. See Driver Information Center
(DIC) 099. The increment value
used depends on the units
displayed.
Reducing Speed While Using
Cruise Control
If the cruise control system is
already activated:
. Press and hold SET– until the
desired lower speed is reached,
then release it.
. To slow down in small
increments, briefly press SET–.
For each press, the vehicle goes
about 1 km/h (Metric display) or
1 mph (English display) slower.
The speedometer reading can be
displayed in either English or metric
units. See Driver Information Center
(DIC) 099. The increment value
used depends on the units
displayed.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
Driving and Operating 181
Passing Another Vehicle While
Using Cruise Control
Use the accelerator pedal to
increase the vehicle speed. When
you take your foot off the pedal, the
vehicle will slow down to the
previous set cruise speed. While
pressing the accelerator pedal or
shortly following the release to
override cruise control, briefly
pressing SET–will result in cruise
set to the current vehicle speed.
Using Cruise Control on Hills
How well the cruise control works
on hills depends on the vehicle
speed, load, and the steepness of
the hills. When going up steep hills,
you might have to step on the
accelerator pedal to maintain the
vehicle speed. When going
downhill, you might have to brake or
shift to a lower gear to keep your
speed down.
If the brake pedal is applied, cruise
control will disengage. Ending Cruise Control
There are four ways to end cruise
control:
.
Step lightly on the brake pedal.
. Press
[.
. Shift the transmission to
N (Neutral).
. To turn off cruise control,
press
I.
Erasing Speed Memory
The cruise control set speed is
erased from memory if
Iis
pressed or if the vehicle is
turned off.
Driver Assistance
Systems
This vehicle may have features that
work together to help avoid crashes
or reduce crash damage while
driving, backing, and parking. Read
this entire section before using
these systems.
{Warning
Do not rely on the Driver
Assistance Systems. These
systems do not replace the need
for paying attention and driving
safely. You may not hear or see
alerts or warnings provided by
these systems. Failure to use
proper care when driving may
result in injury, death, or vehicle
damage. See Defensive Driving
0 151.
(Continued)

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
Driving and Operating 187
prepare for driver braking to occur
more rapidly which can cause a
brief, mild deceleration. Continue to
apply the brake pedal as needed.
Cruise control may be disengaged
when the Collision Alert occurs.
Tailgating Alert
The vehicle ahead indicator will
display amber if following a detected
vehicle ahead much too closely.
Selecting the Alert Timing
The Collision Alert button is on the
center stack. Press
[to set the
alert timing to far, medium, near,
or off. The first button press shows
the current control setting on the
DIC. Additional button presses will
change this setting. The chosen
setting will remain until it is changed
and will affect both the Collision
Alert and the Tailgating Alert features. The timing of both alerts
will vary based on vehicle speed.
The faster the vehicle speed, the
farther away the alert will occur.
Consider traffic and weather
conditions when selecting the alert
timing. The range of selectable alert
timings may not be appropriate for
all drivers and driving conditions.
Unnecessary Alerts
FCA may provide unnecessary
alerts to turning vehicles, vehicles in
other lanes, objects that are not
vehicles, or shadows. These alerts
are normal operation and the
vehicle does not need service.
Cleaning the System
If the FCA system does not seem to
operate properly, cleaning the
outside of the windshield area in
front of the camera sensor may
correct the issue.
Side Blind Zone
Alert (SBZA)
If equipped, the SBZA system is a
lane-changing aid that assists
drivers with avoiding crashes that
occur with moving vehicles in the
side blind zone (or spot) areas. The
SBZA warning display will light up in
the corresponding outside side
mirror and will flash if the turn signal
is on.
{Warning
SBZA does not alert the driver to
vehicles rapidly approaching
outside of the side blind zones,
pedestrians, bicyclists,
or animals. It may not provide
alerts when changing lanes under
all driving conditions. Failure to
use proper care when changing
lanes may result in injury, death,
or vehicle damage. Before
making a lane change, always
check mirrors, glance over your
shoulder, and use the turn
signals.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
196 Driving and Operating
.Vehicles can tow in D (Drive).
Tow/Haul Mode is recommended
for heavier trailers. See Tow/
Haul Mode 0174. If the
transmission downshifts too
often, a lower gear may be
selected using Manual Mode.
See Manual Mode 0173.
If equipped, the following driver
assistance features should be
turned off when towing a trailer:
. Adaptive Cruise Control (ACC)
. Super Cruise Control
. Lane Keep Assist (LKA)
. Park Assist
. Automatic Parking Assist (APA)
. Reverse Automatic
Braking (RAB)
If equipped, the following driver
assistance features should be
turned to alert or off when towing a
trailer:
. Automatic Emergency
Braking (AEB)
. Intelligent Brake Assist (IBA)
. Front Pedestrian Braking (FPB) If equipped with Lane Change Alert
(LCA), the LCA detection zones that
extend back from the side of the
vehicle do not move further back
when a trailer is towed. Use caution
while changing lanes when towing a
trailer.
If equipped with Rear Cross Traffic
Alert (RCTA), use caution while
backing up when towing a trailer, as
the RCTA detection zones that
extend out from the back of the
vehicle do not move further back
when a trailer is towed.
{Warning
To prevent serious injury or death
from carbon monoxide (CO),
when towing a trailer:
. Do not drive with the
liftgate, trunk/hatch,
or rear-most window open.
. Fully open the air outlets on
or under the instrument
panel.
(Continued)
Warning (Continued)
.Adjust the climate control
system to a setting that
brings in only outside air.
See “Climate Control
Systems” in the Index.
For more information about
carbon monoxide, see Engine
Exhaust 0169.
Towing a trailer requires experience.
The combination of the vehicle and
trailer is longer and not as
responsive as the vehicle itself. Get
used to the handling and braking of
the combination by driving on a
level road surface before driving on
public roads.
The trailer structure, the tires, and
the brakes must be all be rated to
carry the intended cargo.
Inadequate trailer equipment can
cause the combination to operate in
an unexpected or unsafe manner.
Before driving, inspect all trailer
hitch parts and attachments, safety
chains, electrical connectors, lamps,

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
Index 345
Child Restraints (cont'd)Lower Anchors and Tethers
for Children . . . . . . . . . . . . . . . . . . . 63
Older Children . . . . . . . . . . . . . . . . . . 55
Securing . . . . . . . . . . . . . . . . . . . . 70, 72
Systems . . . . . . . . . . . . . . . . . . . . . . . . 59
Cigarette Lighter . . . . . . . . . . . . . . . . . 84
Circuit Breakers . . . . . . . . . . . . . . . . 248
Cleaning
Exterior Care . . . . . . . . . . . . . . . . . 293
Interior Care . . . . . . . . . . . . . . . . . . 297
Climate Control Systems . . . . . . . 143
Air Conditioning . . . . . . . . . . . . . . 143
Heating . . . . . . . . . . . . . . . . . . . . . . . 143
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Rear Heating System . . . . . . . . . 145
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Cluster, Instrument . . . . . . . . . . . . . . 86
Collision Damage Repair . . . . . . . 327
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . . 76
Compass . . . . . . . . . . . . . . . . . . . . . . . . 81
Connected Services Connections . . . . . . . . . . . . . . . . . . 341
Diagnostics . . . . . . . . . . . . . . . . . . . 342
Navigation . . . . . . . . . . . . . . . . . . . . 340
Connections Connected Services . . . . . . . . . . 341 Control
Traction and Electronic
Stability . . . . . . . . . . . . . . . . . . . . . 177
Control of a Vehicle . . . . . . . . . . . . . 152
Convex Mirrors . . . . . . . . . . . . . . . . . . 21
Coolant Engine Temperature Gauge . . . . 89
Cooling . . . . . . . . . . . . . . . . . . . . 143, 146
Cooling System . . . . . . . . . . . . . . . . . 229
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 326
Cruise Control . . . . . . . . . . . . . . . . . . 179 Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Customer Assistance . . . . . . . . . . . 323 Offices . . . . . . . . . . . . . . . . . . . . . . . . 322
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 323
Customer Information Publications OrderingInformation . . . . . . . . . . . . . . . . . . 329
Customer Satisfaction
Procedure . . . . . . . . . . . . . . . . . . . . . 320
Cybersecurity . . . . . . . . . . . . . . . . . . . 332
D
Damage Repair, Collision . . . . . . . 327
Danger, Warning, and Caution . . . . 2 Data Collection
Infotainment System . . . . . . . . . . 333
OnStar . . . . . . . . . . . . . . . . . . . . . . . 333
Data Recorders, Event . . . . . . . . . 332
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 110
Defensive Driving . . . . . . . . . . . . . . . 151
Delayed Locking . . . . . . . . . . . . . . . . . 14
Devices
Auxiliary . . . . . . . . . . . . . . . . . . . . . . 130
Diagnostics
Connected Services . . . . . . . . . . 342
Distracted Driving . . . . . . . . . . . . . . . 150
Dome Lamps . . . . . . . . . . . . . . . . . . . 113
Door Cargo Door Relocking . . . . . . . . . . 14
Delayed Locking . . . . . . . . . . . . . . . . 14
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Power Locks . . . . . . . . . . . . . . . . . . . . 14
Rear Doors . . . . . . . . . . . . . . . . . . . . . 18
Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Sliding . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Drive Belt Routing, Engine . . . . . . 319
Driver Assistance Systems . . . . . 181
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . . 99
Driving Better Fuel Economy . . . . . . . . . 150

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
348 Index
Infotainment . . . . . . . . . . . . . . . . . . . . 116
Infotainment System . . . . . . . . . . . . 333
Instrument Cluster . . . . . . . . . . . . . . . 86
Instrument Panel Overview . . . . . . . 5
Interior Rearview Mirrors . . . . . . . . . 22
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - NorthAmerica . . . . . . . . . . . . . . . . . . . . . . . 286
K
Keyless EntryRemote (RKE) System . . . . . . . . . . 9
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
L
Labeling, Tire Sidewall . . . . . . . . . . 256
Lamps Daytime Running (DRL) . . . . . . .110
Dome . . . . . . . . . . . . . . . . . . . . . . . . . .113
Exterior Controls . . . . . . . . . . . . . . 109
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . .110
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . .115
License Plate . . . . . . . . . . . . . . . . . 247
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . . . . . . . . . . . 92 Lamps (cont'd)
Reading . . . . . . . . . . . . . . . . . . . . . . .114
Taillamps . . . . . . . . . . . . . . . . . . . . . 245
Lamps, Bulb Replacement . . . . . . 244
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . 189
Lane Departure Warning Light . . . 95
Lap-Shoulder Belt . . . . . . . . . . . . . . . 36
LATCH System
Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . 70
LATCH, Lower Anchors and
Tethers for Children . . . . . . . . . . . . 63
Lighter, Cigarette . . . . . . . . . . . . . . . . 84
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . .114
Entry/Exit . . . . . . . . . . . . . . . . . . . . . .114
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . .114
Illumination Control . . . . . . . . . . . .113
Lights Airbag On-Off . . . . . . . . . . . . . . . . . . . 91
Airbag Readiness . . . . . . . . . . . . . . . 90
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . . . 95
Brake System Warning . . . . . . . . . 94
Charging System . . . . . . . . . . . . . . . 92
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . . . 92 Lights (cont'd)
Cruise Control . . . . . . . . . . . . . . . . . . 98
Engine Oil Pressure . . . . . . . . . . . . 97
Flash-to-Pass . . . . . . . . . . . . . . . . . .110
High-Beam On . . . . . . . . . . . . . . . . . . 98
High/Low Beam Changer . . . . . .110
Lane Departure Warning . . . . . . . . 95
Low Fuel Warning . . . . . . . . . . . . . . 98
Seat Belt Reminders . . . . . . . . . . . . 90
Security . . . . . . . . . . . . . . . . . . . . . . . . 98
StabiliTrak OFF . . . . . . . . . . . . . . . . . 96
Tire Pressure . . . . . . . . . . . . . . . . . . . 97
Tow/Haul Mode . . . . . . . . . . . . . . . . . 95
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . . . 96
Locking Rear Axle . . . . . . . . . . . . . . 179
Locks
Automatic Door . . . . . . . . . . . . . . . . . 14
Cargo Door Relocking . . . . . . . . . . 14
Delayed Locking . . . . . . . . . . . . . . . . 14
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Lockout Protection . . . . . . . . . . . . . . 14
Power Door . . . . . . . . . . . . . . . . . . . . . 14
Safety . . . . . . . . . . . . . . . . . . . . . . 14, 15
Loss of Control . . . . . . . . . . . . . . . . . 153
Low Fuel Warning Light . . . . . . . . . . 98