2024 GMC SIERRA Seat belt alarm

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
22 Keys, Doors, and Windows
Press the brake pedal and turn the ignition
on to drive the vehicle.
Total Engine Run Time
Remote start can be used for up to
30 minutes of total engine run time.
After two remote starts of 15 minutes,
or multiple shorter time starts totaling
30 minutes have been used, the vehicle
must be started and then turned off before
the remote start can be used again.
Canceling a Remote Start
To cancel a remote start, do one of the
following:
.PressS. The parking lamps will turn off.
.Turn on the hazard warning flashers.
.Turn the ignition on and then off.
Door Locks
{Warning
Unlocked doors can be dangerous.
.Passengers, especially children, can
easily open the doors and fall out of a
moving vehicle. The doors can be
unlocked and opened while the vehicle(Continued)
Warning (Continued)
is moving. The chance of being thrown
out of the vehicle in a crash is
increased if the doors are not locked.
So, all passengers should wear seat
belts properly and the doors should be
locked whenever the vehicle is driven.
.Young children who get into unlocked
vehicles may be unable to get out.
A child can be overcome by extreme
heat and can suffer permanent injuries
or even death from heat stroke.
Always lock the vehicle whenever
leaving it.
.Outsiders can easily enter through an
unlocked door when you slow down
or stop the vehicle. Locking the doors
can help prevent this from happening.
There are several ways to lock and unlock
the vehicle.
From outside:
.Use the remote key.
.Use Keyless Access, if equipped.
.Use the key in the driver door or the
passenger door, if equipped. From inside, pull the door handle once to
unlock the door. Pull the handle again to
open the door.
See
Vehicle Alarm System 032.
Keyless Access
If equipped, the remote key must be within
1 m (3 ft) of the tailgate or door being
opened or locked. Press the button on the
door handle to open. See “Keyless Access
Operation” inRemote Key Operation 015.
Free-Turning Locks
The door key lock cylinder turns freely when
either the wrong key is used, or the correct
key is not fully inserted. The free-turning
door lock feature prevents the lock cylinder

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
434 Index
ReplacementGlass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Replacement Parts Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 399
Replacing Airbag System . . . . . . . . . . . . . . . . . . . . . . . . . . 74
LATCH System Parts After a Crash . . . . . . 91
Seat Belt System Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Reporting Safety Defects
Canadian Government . . . . . . . . . . . . . . . . . 414
General Motors . . . . . . . . . . . . . . . . . . . . . . . . 414
U.S. Government . . . . . . . . . . . . . . . . . . . . . . . 414
Restraints Where to Put . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Retained Accessory Power (RAP) . . . . . . . . . 220
Reverse Tilt Mirrors . . . . . . . . . . . . . . . . . . . . . . . 38
Roads Driving, Wet . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Roadside Assistance Program . . . . . . . . . . . . 408
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Rotation, Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
Routing, Engine Drive Belt . . . . . . . . . . . . . . . 404
Running Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Running the Vehicle While Parked . . . . . . . 223S
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Safety Defects Reporting Canadian Government . . . . . . . . . . . . . . . . . 414
General Motors . . . . . . . . . . . . . . . . . . . . . . . . 414
U.S. Government . . . . . . . . . . . . . . . . . . . . . . . 414
Safety System Check . . . . . . . . . . . . . . . . . . . . . 63
Satellite Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Scheduling Appointments . . . . . . . . . . . . . . . . 410
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57 Buckle To Drive . . . . . . . . . . . . . . . . . . . . . . . . . 58
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Extender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
How to Wear Seat Belts Properly . . . . . . . 58
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . 60
Reminders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Replacing after a Crash . . . . . . . . . . . . . . . . . 64
Use During Pregnancy . . . . . . . . . . . . . . . . . . 63
Seats Adjustment, Front . . . . . . . . . . . . . . . . . . . . . . 48
Center Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . 47
Heated and Ventilated, Front . . . . . . . . . . . 54
Heated, Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Lumbar Adjustment, Front . . . . . . . . . . . . . . 50
Massage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Seats (cont'd)
Power Adjustment, Front . . . . . . . . . . . . . . . 49
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Reclining Seatbacks . . . . . . . . . . . . . . . . . . . . . 49
Underseat Storage . . . . . . . . . . . . . . . . . . . . . 100
Securing Child Restraints . . . . . . . . . . . . . . 92, 95
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 418
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Vehicle Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Accessories and Modifications . . . . . . . . . 310
Climate Control System . . . . . . . . . . . . . . . . . 191
Doing Your Own Work . . . . . . . . . . . . . . . . . . 311
Electric Parking Brake Light . . . . . . . . . . . . 124
Maintenance Records . . . . . . . . . . . . . . . . . 400
Maintenance, General Information . . . . . 393
Parts Identification . . . . . . . . . . . . . . . . . . . . . 401
Scheduling Appointments . . . . . . . . . . . . . . 410
Services
Special Application . . . . . . . . . . . . . . . . . . . . . 397
Servicing the Airbag . . . . . . . . . . . . . . . . . . . . . . .73
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181, 183
Shift Lock Control Function Check, Automatic Transmission . . . . . . . . . . . . . . . . 330
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220