seat adjustment GMC SIERRA 2014 User Guide

Black plate (16,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 6/6/14
3-16 Seats and Restraints
To unlatch the belt, push the button
on the buckle. The belt should
return to its stowed position.
Before a door is closed, be sure the
safety belt is out of the way. If a
door is slammed against a safety
belt, damage can occur to both the
safety belt and the vehicle.
Shoulder Belt Height Adjuster
The vehicle has a shoulder belt
height adjuster for the driver and
front outboard passenger.Adjust the height so the shoulder
portion of the belt is on the shoulder
and not falling off of it. The belt
should be close to, but not
contacting, the neck. Improper
shoulder belt height adjustment
could reduce the effectiveness of
the safety belt in a crash. See
How
to Wear Safety Belts Properly on
page 3-13.Push down on the release button to
move the height adjuster to the
desired position. Move the adjuster up by pushing up
on the shoulder belt guide.
After the adjuster is set to the
desired position, try to move it down
without pushing the release button
to make sure it has locked into
position.
Safety Belt Pretensioners
This vehicle has safety belt
pretensioners for front outboard
occupants. Although the safety belt
pretensioners cannot be seen, they
are part of the safety belt assembly.
They can help tighten the safety
belts during the early stages of a
moderate to severe frontal, near
frontal, or rear crash if the threshold
conditions for pretensioner
activation are met. And, if your
vehicle has side impact airbags,
safety belt pretensioners can help
tighten the safety belts in a side
crash. If the vehicle has rollover
roof-rail airbags, safety belt
pretensioners can help tighten the
safety belts in a rollover event.

Black plate (18,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 6/6/14
3-18 Seats and Restraints
4. Be sure that the belt is nottwisted and it lies flat. The
elastic cord must be under the
belt and the guide on top.
5. The elastic cord on the comfort guide is adjustable. Make it
longer or shorter by squeezing
both ends of the plastic adjuster
and pulling on the elastic cord or
the guide. 6. Adjust the guide so the shoulder
portion of the belt is on the
shoulder and not falling off of it.
The belt should be close to, but
not contacting, the neck.
Improper comfort guide
adjustment could reduce the
effectiveness of the safety belt in
a crash.
{Warning
A safety belt that is not properly
worn may not provide the
protection needed in a crash. The
person wearing the belt could be
seriously injured. The shoulder
belt should go over the shoulder
and across the chest. These parts
of the body are best able to take
belt restraining forces.7. Buckle and position the safety
belt as described previously in
this section. Make sure that the
shoulder belt crosses the
shoulder.
To remove and store the comfort
guide, squeeze the belt edges
together so that the safety belt can
be removed from the guide. Unhook
the guide from the loop on the seat.
Store the guide in a convenient
place like the glove box for the next
time it is needed.

Black plate (24,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - CRC - 6/6/14
9-24 Driving and Operating
Caution (Continued)
broken in. Hard stops with
new linings can mean
premature wear and earlier
replacement. Follow this
breaking-in guideline every
time you get new brake
linings.
.Do not tow a trailer during
break-in. SeeTrailer Towing
on page 9-77 for the trailer
towing capabilities of the
vehicle and more information.
Following break-in, engine speed
and load can be gradually
increased.
Adjustable Throttle and
Brake Pedal
If equipped, the position of the
throttle and brake pedals can be
changed. No adjustment to the pedals can be
made when the vehicle is in
R (Reverse) or while using cruise
control.
The switch used to adjust the
pedals is on the center stack, below
the climate controls.
Lift the switch up to move the
pedals closer to your body. Press
the switch down to move the
pedals away.
Before you start driving, fully press
the brake pedal to confirm the
adjustment is right for you. While
driving, make only small
adjustments.
The vehicle may have a memory
function, which lets pedal settings
be saved and recalled. See
Memory
Seats on page 3-6.
Ignition Positions
The ignition switch has four different
positions.

Black plate (1,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 6/6/14
INDEX i-1
A
Accessories andModifications . . . . . . . . . . . . . . . . . 10-3
Accessory Power . . . . . . . . 9-28, 9-29
Active Fuel Management
®. . . . . 9-32
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . . 9-99
Adding a Snow Plow or Similar Equipment . . . . . . . . . . . . 9-99
Additional Information OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-5
Adjustable Throttle and Brake Pedal . . . . . . . . . . . . . . . . . . 9-24
Adjustments Lumbar, Front Seats . . . . . . . . . . . 3-4
Air Cleaner/Filter, Engine . . . . . 10-17
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . 8-9
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 8-8
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . 3-37
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . 3-27
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . . 3-31 Airbag System (cont'd)
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-26
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . 3-27
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-25
Where Are the Airbags? . . . . . . 3-23
Airbags
Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . 3-36
Light On-Off . . . . . . . . . . . . . . . . . . 5-18
On-Off Light . . . . . . . . . . . . . . . . . . 5-18
On-Off Switch . . . . . . . . . . . . . . . . 3-28
Passenger Status Indicator . . . 5-20
Readiness Light . . . . . . . . . . . . . . 5-18
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . 3-35
System Check . . . . . . . . . . . . . . . . 3-21
Alarm Vehicle Security . . . . . . . . . . . . . . 2-11
All-Terrain Tires . . . . . . . . . . . . . . . 10-53
AM-FM Radio . . . . . . . . . . . . . . . . . . . 7-9
Antenna Multi-band . . . . . . . . . . . . . . . . . . . . 7-12 Antilock Brake
System (ABS) . . . . . . . . . . . . . . . . 9-52
Warning Light . . . . . . . . . . . . . . . . . 5-25
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . 10-96
Interior . . . . . . . . . . . . . . . . . . . . . 10-101
Assistance Program,
Roadside . . . . . . . . . . . . . . . . . . . . . 13-5
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . 9-64
Assistance Systems for
Parking and Backing . . . . . . . . . 9-61
Audio Bluetooth . . . . . . . . . . . . . . . . . . . . . 7-22
Audio Players . . . . . . . . . . . . . . . . . 7-16 CD . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16
Audio System Fixed Mast Antenna . . . . . . . . . . 7-12
Radio Reception . . . . . . . . . . . . . . 7-11
Theft-Deterrent Feature . . . . . . . . 7-2
Automatic
Dimming Mirrors . . . . . . . . . . . . . . 2-17
Door Locks . . . . . . . . . . . . . . . . . . . . 2-9
Headlamp System . . . . . . . . . . . . . 6-3
Transmission . . . . . . . . . . . 9-33, 9-34
Transmission Fluid . . . . . . . . . 10-14

Black plate (5,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 6/6/14
INDEX i-5
Event Data Recorders . . . . . . . . 13-14
Exit Lighting . . . . . . . . . . . . . . . . . . . . 6-8
Extender, Safety Belt . . . . . . . . . . 3-20
Exterior Lamp Controls . . . . . . . . . 6-1
Exterior Lamps Off Reminder . . . 6-2
F
FanEngine . . . . . . . . . . . . . . . . . . . . . . 10-26
Fast Idle System . . . . . . . . . . . . . . . 9-28
Features Memory . . . . . . . . . . . . . . . . . . . . . . . 1-10
Filter,
Engine Air Cleaner . . . . . . . . . 10-17
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 6-3
Flashers, Hazard Warning . . . . . . 6-4
Flat Tire . . . . . . . . . . . . . . . . . . . . . . 10-76 Changing . . . . . . . . . . . . . . . . . . . 10-78
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . 9-70, 9-71
Floor Console Storage . . . . . . . . . . 4-4
Floor Mats . . . . . . . . . . . . . . . . . . .10-104 Fluid
Automatic Transmission . . . . 10-14
Brakes . . . . . . . . . . . . . . . . . . . . . . 10-29
Four-Wheel Drive
Transfer Case . . . . . . . . . . . . . . . 9-39
Power Steering . . . . . . . . . . . . . 10-26
Washer . . . . . . . . . . . . . . . . . . . . . 10-27
Fog Lamps Bulb Replacement . . . . . . 6-5, 10-40
Folding Mirrors . . . . . . . . . . . . . . . . 2-15
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . 9-64
Four-Wheel Drive . . . . . . . . . . . . 9-39, 10-32, 9-39
Four-Wheel-Drive Light . . . . . . . . 5-25
Front Axle . . . . . . . . . . . . . . . . . . . . 10-33
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-29
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . 3-3
Heated and Cooled . . . . . . . . . . . . 3-8
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-68 Additives . . . . . . . . . . . . . . . . . . . . . 9-70
Economy Driving . . . . . . . . . . . . . 1-29
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 9-73 Fuel (cont'd)
Filling the Tank . . . . . . . . . 9-71, 9-72
Foreign Countries . . . . . . . . . . . . 9-70
Gasoline Specifications . . . . . . . 9-70
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 5-14
Low Fuel Warning Light . . . . . . . 5-28
Management, Active . . . . . . . . . . 9-32
Requirements, California . . . . . 9-70
System Messages . . . . . . . . . . . . 5-38
Full-Size Spare Tire . . . . . . . . . . 10-88
Fuses . . . . . . . . . . . . . . . . . . . . . . . . 10-43 Engine CompartmentFuse Block . . . . . . . . . . . . . . . . 10-43
Instrument Panel
Fuse Block . . . . . . . . . 10-47, 10-49
G
Garage Door Opener . . . . . . . . . . 5-52Programming . . . . . . . . . . . . . . . . . 5-52
Gasoline
Specifications . . . . . . . . . . . . . . . . . 9-70
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . 5-16
Engine Oil Pressure . . . . . . . . . . 5-15
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

Black plate (8,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 6/6/14
i-8 INDEX
LocksAutomatic Door . . . . . . . . . . . . . . . . 2-9
Delayed Locking . . . . . . . . . . . . . . . 2-9
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Lockout Protection . . . . . . . . . . . . . 2-9
Power Door . . . . . . . . . . . . . . . . . . . . 2-8
Safety . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Loss of Control . . . . . . . . . . . . . . . . . 9-5
Low Fuel Warning Light . . . . . . . . 5-28
Low-Profile Tires . . . . . . . . . . . . . . 10-53
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . 3-46
Lumbar Adjustment . . . . . . . . . . . . . 3-4 Front Seats . . . . . . . . . . . . . . . . . . . . 3-4
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . .11-16
Maintenance Schedule Recommended Fluidsand Lubricants . . . . . . . . . . . . .11-12
Transfer Case . . . . . . . . . . . . . . . . 9-39
Malfunction Indicator Lamp . . . . 5-22
Manual Mirrors . . . . . . . . . . . . . . . . 2-14
Manual Mode . . . . . . . . . . . . . . . . . . 9-37 Manual Windows . . . . . . . . . . . . . . 2-19
Memory Features . . . . . . . . . . . . . . 1-10
Memory Seats . . . . . . . . . . . . . . . . . . 3-6
Messages
Airbag System . . . . . . . . . . . . . . . . 5-41
Battery Voltage andCharging . . . . . . . . . . . . . . . . . . . . 5-35
Brake System . . . . . . . . . . . . . . . . 5-36
Compass . . . . . . . . . . . . . . . . . . . . . 5-36
Door Ajar . . . . . . . . . . . . . . . . . . . . . 5-36
Engine Cooling System . . . . . . . 5-37
Engine Oil . . . . . . . . . . . . . . . . . . . . 5-37
Engine Power . . . . . . . . . . . . . . . . 5-38
Fuel System . . . . . . . . . . . . . . . . . . 5-38
Key and Lock . . . . . . . . . . . . . . . . . 5-39
Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 5-39
Object Detection System . . . . . 5-39
Ride Control System . . . . . . . . . . 5-40
Security . . . . . . . . . . . . . . . . . . . . . . 5-41
Steering System . . . . . . . . . . . . . . 5-41
Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-42
Transmission . . . . . . . . . . . . . . . . . 5-42
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 5-35
Vehicle Reminder . . . . . . . . . . . . . 5-44
Vehicle Speed . . . . . . . . . . . . . . . . 5-45
Washer Fluid . . . . . . . . . . . . . . . . . 5-45 Mirrors
Automatic Dimming . . . . . . . . . . . 2-17
Automatic Dimming
Rearview . . . . . . . . . . . . . . . . . . . . 2-19
Blind Spot . . . . . . . . . . . . . . . . . . . . 2-17
Convex . . . . . . . . . . . . . . . . . . . . . . . 2-14
Folding . . . . . . . . . . . . . . . . . . . . . . . 2-15
Heated . . . . . . . . . . . . . . . . . . . . . . . 2-16
Manual . . . . . . . . . . . . . . . . . . . . . . . 2-14
Manual Rearview . . . . . . . . . . . . . 2-18
Power . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Tilt in Reverse . . . . . . . . . . . . . . . . 2-18
Trailer Tow . . . . . . . . . . . . . . . . . . . . 2-14
Mirrors, Interior Rearview . . . . . . 2-18
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . 10-62
Multi-band Antenna . . . . . . . . . . . . 7-12N
Navigation OnStar®. . . . . . . . . . . . . . . . . . . . . . 14-2
New Vehicle Break-In . . . . 9-23, 9-24
Noise Control System . . . . . . . . 10-35

Black plate (9,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 6/6/14
INDEX i-9
O
Object Detection SystemMessages . . . . . . . . . . . . . . . . . . . . 5-39
Odometer . . . . . . . . . . . . . . . . . . . . . . 5-13 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
Off-Road . . . . . . . . . . . . . . . . . . . . . . . 9-6 Driving . . . . . . . . . . . . . . . . . . . . . . . . . 9-6
Recovery . . . . . . . . . . . . . . . . . . . . . . 9-5
Oil Engine . . . . . . . . . . . . . . . . . . . . . . 10-10
Engine Oil Life System . . . . . 10-13
Engine Oil PressureGauge . . . . . . . . . . . . . . . . . . . . . . 5-15
Messages . . . . . . . . . . . . . . . . . . . . 5-37
Older Children, Restraints . . . . . 3-38
Online Owner Center . . . . . . . . . . 13-4
OnStar
®
System, In Brief . . . . . . . . . . . . . . 1-30
OnStar®Additional
Information . . . . . . . . . . . . . . . . . . . 14-5
OnStar
®Connections . . . . . . . . . . 14-3
OnStar®Diagnostics . . . . . . . . . . . 14-5
OnStar®Emergency . . . . . . . . . . . 14-2
OnStar®Navigation . . . . . . . . . . . . 14-2
OnStar®Overview . . . . . . . . . . . . . 14-1
OnStar®Security . . . . . . . . . . . . . . 14-2 OnStar
®System . . . . . . . . . . . . . . . 7-23
Ordering
Service Publications . . . . . . . . .13-11
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Overheated Engine Protection
Operating Mode . . . . . . . . . . . . . 10-25
Overheating, Engine . . . . . . . . . . 10-23
Overview, Infotainment System . . . . . . . . . . . . . . . . . . . . . . . . 7-2
P
Pandora Internet Radio . . . . . . . . 7-12
Park
Shifting Into . . . . . . . . . . . . . . . . . . . 9-30
Shifting Out of . . . . . . . . . . 9-31, 9-32
Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . . . 9-53
Brake and P (Park)Mechanism Check . . . . . . . . 10-37
Over Things That Burn . . . . . . . 9-32
Parking or Backing
Assistance Systems . . . . . . . . . . 9-61
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . 5-20 Passenger Compartment Air
Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Passenger Sensing System . . . 3-31
Perchlorate Materials Requirements, California . . . . . 10-3
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 5-45
Phone Bluetooth . . . . . . . . 7-32, 7-34, 7-39, 7-44, 7-48
Pickup Conversion to
Chassis Cab . . . . . . . . . . . . . . . . 9-103
Port
USB . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19
Power Door Locks . . . . . . . . . . . . . . . . . . . . 2-8
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Outlets . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Protection, Battery . . . . . . . . . . . . . 6-9
RetainedAccessory (RAP) . . . . . . 9-28, 9-29
Seat Adjustment . . . . . . . . . . . . . . . 3-4
Steering Fluid . . . . . . . . . . . . . . . 10-26
Windows . . . . . . . . . . . . . . . . . . . . . 2-19
Pregnancy, Using Safety Belts . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Black plate (11,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 6/6/14
INDEX i-11
Safety Belts (cont'd)Reminders . . . . . . . . . . . . . . . . . . . . 5-17
Replacing after a Crash . . . . . . 3-21
Use During Pregnancy . . . . . . . . 3-19
Safety Defects Reporting Canadian Government . . . . . . 13-13
General Motors . . . . . . . . . . . . . 13-13
U.S. Government . . . . . . . . . . . 13-12
Safety Locks . . . . . . . . . . . . . . . . . . . . 2-9
Safety System Check . . . . . . . . . . 3-20
Satellite Radio . . . . . . . . . . . . . . . . . 7-10
Scheduling Appointments . . . . . . 13-7
SD Card Reader . . . . . . . . . . . . . . . 7-21
Seats
Adjustment, Front . . . . . . . . . . . . . . 3-3
Center Seat . . . . . . . . . . . . . . . . . . . 3-3
Head Restraints . . . . . . . . . . . . . . . 3-2
Lumbar Adjustment, Front . . . . . 3-4
Memory . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Power Adjustment, Front . . . . . . 3-4
Rear . . . . . . . . . . . . . . . . . . . . 3-10, 3-11
Reclining Seatbacks . . . . . . . . . . . 3-5
Securing Child
Restraints . . . . . . . . . . . . . . 3-58, 3-68 Security
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-29
Messages . . . . . . . . . . . . . . . . . . . . 5-41
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-2
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 2-11
Vehicle Alarm . . . . . . . . . . . . . . . . . 2-11
Service
Accessories andModifications . . . . . . . . . . . . . . . . 10-3
Doing Your Own Work . . . . . . . . 10-3
Engine Soon Light . . . . . . . . . . . . 5-22
Maintenance Records . . . . . . .11-16
Maintenance, General Information . . . . . . . . . . . . . . . . . . 11-1
Parts Identification Label . . . . . 12-1
Publications Ordering Information . . . . . . . . . . . . . . . . .13-11
Scheduling Appointments . . . . . 13-7
Servicing the Airbag . . . . . . . . . . . 3-35
Shift Lock Control Function Check, Automatic
Transmission . . . . . . . . . . . . . . . . 10-36
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 9-30
Out of Park . . . . . . . . . . . . . 9-31, 9-32 Signals, Turn and
Lane-Change . . . . . . . . . . . . . . . . . 6-5
Snow Plow . . . . . . . . . . . . . . . . . . . . 9-99
Software Updates . . . . . . . . . . . . . . 7-8
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . 12-2
Speedometer . . . . . . . . . . . . . . . . . . 5-13
StabiliTrak
OFF Light . . . . . . . . . . . . . . . . . . . . . 5-27
Start Assist, Hills . . . . . . . . . . . . . . 9-54
Start Vehicle, Remote . . . . . . . . . . 2-6
Starter Switch Check . . . . . . . . . 10-36
Starting the Engine . . . . . . 9-26, 9-27
Steering . . . . . . . . . . . . . . . . . . . . . . . . 9-4 Fluid, Power . . . . . . . . . . . . . . . . 10-26
Heated Wheel . . . . . . . . . . . . . . . . . 5-4
Wheel Adjustment . . . . . . . . . . . . . 5-2
Wheel Controls . . . . . . . . . . . . . . . . 5-3
Steering System Messages . . . . 5-41
Stoplamps and Back-up Lamps Bulb Replacement . . . . . . . . . . 10-40