Steering System; Messages; Tire Messages - GMC Sierra Denali 2017 Owner's Manual

Steering System

Messages

STEERING ASSIST IS
REDUCED DRIVE WITH CARE
This message may display if a
problem occurs with the electric
power steering system. If this
message appears, steering effort
may be slightly higher than normal.
The vehicle is still safe to drive. Use
caution while in reduced assist
mode. If this message is persistent
or appears repeatedly, take the
vehicle to your dealer for service.
See Steering 0 240.
SERVICE POWER STEERING
(1500 Series)
This message displays when there
is a problem with electric power
steering. If this message displays
and a reduction in steering
performance or loss of power
steering assistance is noticed. See
your dealer. See Steering 0 240.
SERVICE POWER STEERING
(2500/3500 Series)
This message displays when there
is a problem with the power steering
assist system. If this message
displays the vehicle can be driven
but should be repaired as soon as
possible. See your dealer. See
Steering 0 240.

Tire Messages

SERVICE TIRE MONITOR
SYSTEM
If equipped with the Tire Pressure
Monitor System (TPMS), this
message displays if a part on the
system is not working properly. The
tire pressure light also flashes and
then remains on during the same
ignition cycle. See Tire Pressure
Light 0 138. Several conditions may
cause this message to appear. See
Tire Pressure Monitor Operation
0 394. If the warning comes on and
stays on, there may be a problem
with the TPMS. See your dealer.
Instruments and Controls
TIRE LEARNING ACTIVE
If equipped with the Tire Pressure
Monitor System (TPMS), this
message displays when the system
is relearning the tire positions on
your vehicle. The tire positions must
be relearned after rotating the tires
or after replacing a tire or sensor.
See Tire Inspection 0 397, Tire
Rotation 0 398, Tire Pressure
Monitor System 0 393, and Tire
Pressure 0 391.
TIRE PRESSURE LOW ADD
AIR TO TIRE
If equipped with the Tire Pressure
Monitor System (TPMS), this
message displays when the
pressure in one or more of the
vehicle's tires is low. This message
also displays with a vehicle picture
to indicate the location of the low
tire. The low tire pressure warning
light will also come on. See Tire
Pressure Light 0 138. You can
receive more than one tire pressure
message at a time. If a tire pressure
message appears on the DIC, stop
as soon as you can. Have the tire
pressures checked and set to those
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