GMC Savana 2020 Owner's Manual page 199

198 Driving and Operating
Vehicles can tow in D (Drive).
Tow/Haul Mode is recommended
for heavier trailers. See Tow/
Haul Mode 0 176. If the
transmission downshifts too
often, a lower gear may be
selected using Manual Mode.
See Manual Mode 0 175.
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.
(Continued)
Warning (Continued)
Fully open the air outlets on
or under the instrument
panel.
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 0 171.
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