Airbag System Messages; Safety Belt Messages; Security Messages - GMC Sierra Denali 2017 Owner's Manual

150 Instruments and Controls
The stability system takes longer
than usual to complete its
diagnostic checks due to driving
conditions.
An engine or vehicle-related
problem has been detected and
the vehicle needs service. See
your dealer.
The transfer case is in
Four-Wheel Drive Low.
The message turns off as soon as
the conditions that caused the
message to be displayed are no
longer present.

Airbag System Messages

SERVICE AIRBAG
This message displays if there is a
problem with the airbag system.
Take the vehicle to your dealer for
service.

Safety Belt Messages

SHIFTER LOCKED. BUCKLE
SEATBELT
This message displays if the vehicle
is equipped with the Safety Belt
Assurance System and the driver
and front outboard passenger,
if present, safety belts are not
buckled. The vehicle will not shift
out of P (Park). Buckle the safety
belt(s) to unlock the shift lever.
This system may not allow the
vehicle to shift out of P (Park) if an
object such as a briefcase,
handbag, grocery bag, laptop,
or other electronic device
the front outboard passenger seat.
If this happens, remove the object
from the seat or buckle the
safety belt.
If the driver or front outboard
passenger unbuckles their safety
belt while driving, the safety belt
reminder chime and light(s) will
come on. See Safety Belt
Reminders 0 129.
SHIFTER UNLOCKED. BRAKE
TO SHIFT
This message displays when the
Safety Belt Assurance System times
out and allows the vehicle to be
shifted out of P (Park) after
30 seconds following brake apply.
See Safety Belts and Child
Restraints in the Index for
information about the importance of
proper restraint use.
This system may not function
properly if the airbag readiness light
is on. See Airbag Readiness
Light 0 130.
is on

Security Messages

SERVICE THEFT DETERRENT
SYSTEM
This message displays when there
is a problem with the theft-deterrent
system. The vehicle may or may not
restart, so you may want to take the
vehicle to your dealer before turning
off the engine. See Immobilizer
Operation 0 40.