
Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
126 Lighting
Exterior Lamps Off
Reminder
If a door is open, a reminder chimesounds when the headlamps orparking lamps are manually turnedon and the key is out of the ignition.To t u r n o f f t h e c h i m e , t u r n t h e
headlamp switch toOor AUTO and
then back on, or close and re⇣openthe door. In the auto mode, theheadlamps turn off once the ignitionis in LOCK/OFF or may remain onuntil the headlamp delay ends,if enabled in the Driver InformationCenter (DIC). See“Exit Lighting”underVehiclePersonalization011 9.
Headlamp High/
Low-Beam Changer
23(Headlamp High/Low-BeamChanger) :Pull the turn signal leverall the way toward you to changethe headlamps from low to highbeam. Then release it.
This instrument cluster light comeson when the high-beam headlampsare on.
Flash-to-Pass
This feature is used to signal to thevehicle ahead that you wantto pass.
If the headlamps are off or in thelow⇣beam position, pull the turnsignal lever toward you tomomentarily switch to high beams.
Release the lever to turn thehigh-beam headlamps off.
Daytime Running
Lamps (DRL)
DRL can make it easier for others tosee the front of the vehicle duringthe day. Fully functional DRL arerequired on all vehicles first sold inCanada.
The DRL system comes on indaylight when the followingconditions are met:
.The ignition is on.
.The exterior lamp control is inthe AUTO position.
.The shift lever is not in P (Park).
.The light sensor determines it isdaytime.
When the DRL are on, the taillamps,sidemarker, instrument panel lights,and other lamps will not be on.
The automatic headlamp systemautomatically switches from DRL tothe headlamps depending on thedarkness of the surroundings.
To t u r n o f f t h e D R L , t u r n t h e e x t e r i o r
lamp control toOand then release
it. For vehicles first sold in Canada,the transmission must be in theP(Park) position, before the DRLcan be turned off.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
Lighting 127
Automatic Headlamp
System
When it is dark enough outside andthe headlamp switch is in AUTO,the automatic headlamp systemturns on the headlamps, along withthe taillamps, sidemarker lamps,parking lamps, and the instrumentpanel lights. The radio lights willalso be dim.
To t u r n o f f t h e a u t o m a t i c h e a d l a m psystem, turn the exterior lampcontrol to the off position and thenrelease. For vehicles first sold inCanada, the transmission must bein the P (Park) position, before theautomatic headlamp system can beturned off.
The vehicle has a light sensor onthe top of the instrument panel. Donot cover the sensor; otherwise thesystem will come on whenever theignition is on.
The system may also turn on theheadlamps when driving through aparking garage or tunnel.
There is a delay in the transitionbetween the daytime and nighttimeoperation of the Daytime RunningLamps (DRL) and the automaticheadlamp system so that drivingunder bridges or bright overheadstreet lights does not affect thesystem. The DRL and automaticheadlamp system are only affectedwhen the light sensor sees achange in lighting lasting longerthan the delay.
If the vehicle is started in a darkgarage, the automatic headlampsystem comes on immediately.Once the vehicle leaves the garage,it takes approximately 30 secondsfor the automatic headlamp systemto change to DRL if it is lightoutside. During that delay, theinstrument cluster may not be as
bright as usual. Make sure theinstrument panel brightness controlis in the full bright position. SeeInstrument Panel IlluminationControl0129.
Lights On with Wipers
If the windshield wipers areactivated in daylight with the engineon, and the exterior lamp control isin AUTO, the headlamps, parkinglamps, and other exterior lampscome on. The transition time for thelamps coming on varies based onwiper speed. When the wipers arenot operating, these lamps turn off.
Move the exterior lamp control toP
or;to disable this feature.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
128 Lighting
Hazard Warning Flashers
|:Press this button to make thefront and rear turn signal lampsflash on and off. This warns othersthat you are having trouble. Pressagain to turn the flashers off.
When the hazard warning flashersare on, the vehicle's turn signals willnot work.
Turn and Lane-Change
Signals
G:An arrow on the instrumentcluster flashes in the direction of theturn or lane change.
To s i g n a l a t u r n , m o v e t h e l e v e r a l lthe way up or down.
To s i g n a l a l a n e c h a n g e , r a i s e o rlower the lever until the arrow startsto flash. The turn signalautomatically flashes three timesand if the Tow/Haul Mode is active itflashes six times. Holding the turnsignal lever for more thanone second causes the turn signalsto flash continually until the lever isreleased.
The lever returns to its startingposition when released.
If after signaling a turn or lanechange the arrow flashes rapidly ordoes not come on, a signal bulbmay be burned out.
Have any burned out bulbsreplaced. If a bulb is not burned out,check the fuse. SeeFuses andCircuit Breakers0246.
Turn Signal On Chime
If the turn signal is left on for morethan 1.2 km (0.75 mi), a chimesounds at each flash of the turnsignal and the message TURNSIGNAL ON also appears in theDriver Information Center (DIC). SeeLamp Messages011 5.Toturnoffthe chime and message, move theturn signal lever to the off position.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
132 Infotainment System
Infotainment
System
Introduction
Infotainment . . . . . . . . . . . . . . . . . . 132Theft-Deterrent Feature . . . . . . 133Overview (AM-FM Radio) . . . . . 133Overview (Radio withCD/MP3) . . . . . . . . . . . . . . . . . . . . 135Operation . . . . . . . . . . . . . . . . . . . . . 136
Radio
AM-FM Radio . . . . . . . . . . . . . . . . 138Satellite Radio . . . . . . . . . . . . . . . . 139Radio Reception . . . . . . . . . . . . . . 140Multi-Band Antenna . . . . . . . . . . 141
Audio Players
Avoiding Untrusted MediaDevices . . . . . . . . . . . . . . . . . . . . . 141CD Player . . . . . . . . . . . . . . . . . . . . 141Auxiliary Devices . . . . . . . . . . . . . 146
OnStar System
OnStar System . . . . . . . . . . . . . . . 150
Phone
Bluetooth . . . . . . . . . . . . . . . . . . . . . 151
Introduction
Infotainment
Base radio information is included inthis manual. See the infotainmentmanual for information on otheravailable infotainment systems.
Read the following pages tobecome familiar with the BaseRadio features.
{Warning
Ta k i n g y o u r e y e s o f f t h e r o a d f o r
too long or too often while using
any infotainment feature can
cause a crash. You or others
could be injured or killed. Do not
give extended attention to
infotainment tasks while driving.
Limit your glances at the vehicle
displays and focus your attention
on driving. Use voice commands
whenever possible.
The infotainment system has built-infeatures intended to help avoiddistraction by disabling some
functions when driving. Thesefunctions may gray out when theyare unavailable. Many infotainmentfeatures are also available throughthe instrument cluster and steeringwheel controls.
Before driving:
.Become familiar with theoperation, faceplate buttons, andscreen buttons.
.Set up the audio by presettingfavorite stations, setting thetone, and adjusting thespeakers.
.Set up phone numbers inadvance so they can be calledeasily by pressing a singlebutton or by using a single voicecommand if equipped withBluetooth phone capability.
SeeDefensive Driving0165.
To p l a y t h e i n f o t a i n m e n t s y s t e m w i t hthe ignition off, seeRetainedAccessory Power (RAP)0180.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/6/16
Driving and Operating 177
1(ACC/ACCESSORY):This is theposition in which you can operatethings like the radio and thewindshield wipers when the engineis off.
2(ON/RUN):This position can beused to operate the electricalaccessories and to display someinstrument cluster warning andindicator lights. This position canalso be used for service anddiagnostics, and to verify the properoperation of the malfunctionindicator lamp as may be requiredfor emission inspection purposes.The switch stays in this positionwhen the engine is running.
If you leave the key in the ACC/ACCESSORY or ON/RUN positionwith the engine off, the battery couldbe drained. You may not be able tostart the vehicle if the battery isallowed to drain for an extendedperiod of time.
3(START):This is the position thatstarts the engine. When the enginestarts, release the key. The ignitionswitch returns to ON/RUN fordriving.
Awarningtonewillsoundwhenthedriver door is opened, the ignition isin ACC/ACCESSORY or LOCK/OFFand the key is in the ignition.
Starting the Engine
If the vehicle has a diesel engine,see the Duramax dieselsupplement.
To p l a c e t h e t r a n s m i s s i o n i n t h eproper gear:
Move the shift lever to P (Park) orN(Neutral). The engine will not startin any other position. To restart theengine when the vehicle is alreadymoving, use N (Neutral) only.
Caution
If you add electrical parts or
accessories, you could change
the way the engine operates. Any
resulting damage would not be
covered by the vehicle warranty.
SeeAdd-On Electrical
Equipment0212.
Caution
Do not try to shift to P (Park) if the
vehicle is moving. If you do, you
could damage the transmission.
Shift to P (Park) only when the
vehicle is stopped.
Caution
If the steering wheel is turned
until it reaches the end of its
travel, and is held in that position
while starting the vehicle, damage
may occur to the hydraulic power
steering system and there may be
loss of power steering assist.
Starting Procedure
1. With your foot off theaccelerator pedal, turn theignition key to START. Whenthe engine starts, let go of thekey. The idle speed will godown as your engine getswarm. Do not race the engineimmediately after starting it.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/6/16
Driving and Operating 183
Warning (Continued)
.There are holes or openingsin the vehicle body fromdamage or aftermarketmodifications that are notcompletely sealed.
If unusual fumes are detected or
if it is suspected that exhaust is
coming into the vehicle:
.Drive it only with thewindows completely down.
.Have the vehicle repairedimmediately.
Never park the vehicle with the
engine running in an enclosed
area such as a garage or a
building that has no fresh air
ventilation.
Running the Vehicle
While Parked
It is better not to park with theengine running.
If the vehicle is left with the enginerunning, follow the proper steps tobe sure the vehicle will not move.SeeShifting Into Park0180andEngine Exhaust0182.
If parking on a hill and pulling atrailer, seeDriving Characteristicsand Towing Tips0202.
Automatic
Transmission
Ashiftpositionindicatorisintheinstrument cluster.
There are several different positionsfor the shift lever.
See“Range Selection Mode”underManual Mode0186.
P:This position locks the rearwheels. It is the best position to usewhen starting the engine becausethe vehicle cannot move easily.When parked on a hill, especiallywhen the vehicle has a heavy load,you might notice an increase in theeffort to shift out of P (Park). See“To r q u e L o c k”underShifting IntoPark0180.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/6/16
Driving and Operating 187
2. Press the +/✓buttons on theshift lever, to select the desiredrange of gears for currentdriving conditions.
When M (Manual Mode) is selectedanumberdisplaysintheDICnexttothe M indicating the current gear.
This number is the highest gear thatcan be used. However, the vehiclecan automatically shift to lowergears as it adjusts to drivingconditions. This means that allgears below that number areavailable. When 5 (Fifth) is selected,1(First) through 5(Fifth) gears areautomatically shifted by the vehicle,but 6 (Sixth) cannot be used untilthe +/✓button on the steeringcolumn lever is used to change tothe gear.
Grade Braking is not available whenRange Selection Mode is active.SeeTo w / H a u l M o d e0187.
While using Range Selection Mode,cruise control and the Tow/HaulMode can be used.
Caution
Spinning the tires or holding the
vehicle in one place on a hill
using only the accelerator pedal
may damage the transmission.
The repair will not be covered by
the vehicle warranty. If you are
stuck, do not spin the tires. When
stopping on a hill, use the brakes
to hold the vehicle in place.
Low Traction Mode
Low Traction Mode can assist invehicle acceleration when roadconditions are slippery. While thevehicle is at a stop, select thesecond gear range using RangeSelection Mode. This will limittorque to the wheels after it detectswheel slip, preventing the tires fromspinning.
Tow/Haul Mode
If equipped, Tow/Haul Mode adjuststhe transmission shift pattern toreduce shift cycling, providingincreased performance, vehiclecontrol, and transmission coolingwhen towing or hauling heavy loads.
Turn the Tow/Haul Mode on and offby pressing the button on theinstrument panel. When Tow/Haul ison, a light on the instrument clusterwill come on.
SeeTo w / H a u l M o d e L i g h t0105.
Also see“To w / H a u l M o d e”underTo w i n g E q u i p m e n t0210.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/6/16
190 Driving and Operating
Ride Control Systems
Traction Control/
Electronic Stability
Control
The vehicle may have a vehiclestability enhancement system calledStabiliTrak. It is an advancedcomputer controlled system thatassists the driver with directionalcontrol of the vehicle in difficultdriving conditions.
StabiliTrak activates when thecomputer senses a discrepancybetween the intended path and thedirection the vehicle is actuallytraveling. StabiliTrak selectivelyapplies braking pressure at any oneof the vehicle's brakes to assist thedriver with keeping the vehicle onthe intended path.
When the vehicle is started andbegins to move, the systemperforms several diagnostic checksto ensure there are no problems.The system may be heard or feltwhile it is working. This is normaland does not mean there is a
problem with the vehicle. Thesystem should initialize before thevehicle reaches 40 km/h (25 mph).In some cases, it may takeapproximately 3.2 km (2 mi) ofdriving before the system initializes.
The Traction Control System (TCS)/StabiliTrak indicator light comes onin the instrument cluster when thesystem requires service.
When StabiliTrak activates, theTCS/StabiliTrak indicator lightflashes in the instrument cluster.This also occurs when TCS isactivated.
SeeTr a c t i o n C o n t r o l S y s t e m ( T C S ) /StabiliTrak®Light0105.
For your safety, the system can onlybe disabled when the vehicle speedis less than 40 km/h (25 mph).
Pressgon the instrument panel
once to turn off the TCS. Theappropriate message is displayed inthe DIC. SeeRide Control SystemMessages011 6.
Press and holdgto turn off
StabiliTrak and TCS. The StabiliTrakOFF light illuminates and the