
Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
Lighting 125
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . 125Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 126Headlamp High/Low-BeamChanger . . . . . . . . . . . . . . . . . . . . 126Flash-to-Pass . . . . . . . . . . . . . . . . 126Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . 126Automatic HeadlampSystem . . . . . . . . . . . . . . . . . . . . . . 127Hazard Warning Flashers . . . . . 128Turn and Lane-ChangeSignals . . . . . . . . . . . . . . . . . . . . . . 128
Interior Lighting
Instrument Panel IlluminationControl . . . . . . . . . . . . . . . . . . . . . . 129Dome Lamps . . . . . . . . . . . . . . . . . 129Reading Lamps . . . . . . . . . . . . . . 130
Lighting Features
Entry/Exit Lighting . . . . . . . . . . . . 130Battery Load Management . . . 130Battery Power Protection . . . . . 131
Exterior Lighting
Exterior Lamp Controls
The exterior lamp control is on theinstrument panel to the left of thesteering wheel.
There are four positions:
O:Briefly turn the control to thisposition to turn the automaticheadlamps and Daytime RunningLamps (DRL) off or back on.
For vehicles first sold in Canada,the off position only works forvehicles that are shifted into theP(Park) position.
AUTO :Automatically turns theexterior lamps on and off,depending on outside lighting.
;:Turns on the parking lampsincluding all lamps, except theheadlamps.
2:Turns on the headlampstogether with the parking lamps andinstrument panel lights.
If the headlamps are turned onwhile the vehicle is on, theheadlamps turn off automatically10 minutes after the ignition isturned off. If the headlamps areturned on while the vehicle is off,the headlamps will continue to stayon. To prevent the battery frombeing drained, turn the control to theOposition.
Awarningchimesoundsifthedriverdoor is opened while the ignitionswitch is off and the headlampsare on.
To c h a n g e t h e h e a d l a m p s f r o m l o wbeam to high beam, pull the turnsignal lever all the way toward you.Then release it.

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
Lighting 129
Interior Lighting
Instrument Panel
Illumination Control
The knob for this feature is to theleft of the steering column.
D:Push the knob to extend andthen turn clockwise orcounterclockwise to brighten or dimthe instrument panel lights and theradio display. This only works if theheadlamps or parking lamps are on.
Dome Lamps
The dome lamps come on when anydoor is opened. They turn off afterall the doors are closed.
The instrument panel brightness
knob extends whenDis pressed.
To m a n u a l l y t u r n o n t h e d o m e
lamps, pressDthen turn the knob
clockwise to the farthest position. Inthis position, the dome lampsremain on whether a door is openedor closed.
Dome Lamp Override
TheEDOME OFF button is above
the instrument panelbrightness knob.
The dome lamp override sets thedome lamps to remain off or comeon automatically when a door isopened.
EDOME OFF :Press this buttonin and the dome lamps remain offwhen a door is opened. Press thebutton again to return it to theextended position so that the domelamps come on when a door isopened.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
130 Lighting
Reading Lamps
If equipped with reading lamps,press the button next to each lampto turn it on or off.
The vehicle may also have readinglamps in other locations. The lampscannot be adjusted.
Lighting Features
Entry/Exit Lighting
The vehicle has an illuminatedentry/exit feature.
The dome lamps come on if theE
DOME OFF button is in theextended position, when a door isopened, or the key is removed fromthe ignition.
Battery Load
Management
The vehicle may have ElectricPower Management (EPM) thatestimates the battery's temperatureand state of charge. It then adjuststhe voltage for best performanceand extended life of the battery.
When the battery's state of chargeis low, the voltage is raised slightlyto quickly bring the charge back up.When the state of charge is high,the voltage is lowered slightly toprevent overcharging. If the vehiclehas a voltmeter gauge or a voltagedisplay on the Driver Information
Center (DIC), you may see thevoltage move up or down. This isnormal. If there is a problem, analert will be displayed.
The battery can be discharged atidle if the electrical loads are veryhigh. This is true for all vehicles.This is because the generator(alternator) may not be spinning fastenough at idle to produce all thepower that is needed for very highelectrical loads.
Ahighelectricalloadoccurswhenseveral of the following are on, suchas: headlamps, high beams, foglamps, rear window defogger,climate control fan at high speed,heated seats, engine cooling fans,trailer loads, and loads plugged intoaccessory power outlets.
EPM works to prevent excessivedischarge of the battery. It does thisby balancing the generator's outputand the vehicle's electrical needs.It can increase engine idle speed togenerate more power, wheneverneeded. It can temporarily reducethe power demands of someaccessories.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/6/16
170 Driving and Operating
when on dry pavement. SeeAntilock Brake System(ABS)0188.
.Allow greater following distanceand watch for slippery spots. Icypatches can occur on otherwiseclear roads in shaded areas.The surface of a curve or anoverpass can remain icy whenthe surrounding roads are clear.Avoid sudden steeringmaneuvers and braking whileon ice.
.Turn off cruise control.
Blizzard Conditions
Stop the vehicle in a safe place andsignal for help. Stay with the vehicleunless there is help nearby.If possible, use RoadsideAssistance. SeeRoadsideAssistance Program0316.Togethelp and keep everyone in thevehicle safe:
.Turn on the hazard warningflashers.
.Tie a red cloth to an outsidemirror.
{Warning
Snow can trap engine exhaust
under the vehicle. This may
cause exhaust gases to get
inside. Engine exhaust contains
carbon monoxide (CO), which
cannot be seen or smelled. It can
cause unconsciousness and even
death.
If the vehicle is stuck in snow:
.Clear snow from the base ofthe vehicle, especially anyblocking the exhaust pipe.
.Open a window about 5 cm(2 in) on the vehicle sidethat is away from the wind,to bring in fresh air.
.Fully open the air outlets onor under the instrumentpanel.
.Adjust the climate controlsystem to circulate the airinside the vehicle and set
(Continued)
Warning (Continued)
the fan speed to the highestsetting. See“ClimateControl Systems.”
For more information about CO,
seeEngine Exhaust0182.
To s a v e f u e l , r u n t h e e n g i n e f o rshort periods to warm the vehicleand then shut the engine off andpartially close the window. Movingabout to keep warm also helps.
If it takes time for help to arrive,when running the engine, push theaccelerator pedal slightly so theengine runs faster than the idlespeed. This keeps the batterycharged to restart the vehicle and tosignal for help with the headlamps.Do this as little as possible, tosave fuel.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/6/16
196 Driving and Operating
This following shows the field ofview that the camera provides.
1. View displayed by thecamera
1. View displayed by thecamera
2. Corners of the rear bumper
Displayed images may be further orcloser than they appear. The areadisplayed is limited and objects thatare close to either corner of thebumper or under the bumper do notdisplay.
When the System Does Not
Seem To Work Properly
The RVC system might not workproperly or display a clear image if:
.It is dark.
.The sun or the beam ofheadlamps is shining directlyinto the camera lens.
.Ice, snow, mud, or anything elsebuilds up on the camera lens.Clean the lens, rinse it withwater, and wipe it with a softcloth.
.The back of the vehicle is in anaccident. The position andmounting angle of the cameracan change or the camera canbe affected. Be sure to have the
camera and its position andmounting angle checked at yourdealer.
The RVC system display in therearview mirror may turn off or notappear as expected due to one ofthe following conditions. If thisoccurs, the left indicator light on themirror will flash.
.Aslowflashmayindicatealossof video signal, or no videosignal present during the reversecycle.
.Afastflashmayindicatethatthedisplay has been on for themaximum allowable time duringareversecycle,orthedisplayhas reached an OverTe m p e r a t u r e l i m i t .
The fast flash conditions areused to protect the video devicefrom high temperatureconditions. Once conditionsreturn to normal, the device willreset and the indicator will stopflashing.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
214 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . 215California Proposition65 Warning . . . . . . . . . . . . . . . . . 215California PerchlorateMaterials Requirements . . . . . 215Accessories andModifications . . . . . . . . . . . . . . . . 216
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 216Hood . . . . . . . . . . . . . . . . . . . . . . . . . 217Engine CompartmentOverview . . . . . . . . . . . . . . . . . . . . 218Engine Oil . . . . . . . . . . . . . . . . . . . . 219Engine Oil Life System . . . . . . . 221Automatic TransmissionFluid . . . . . . . . . . . . . . . . . . . . . . . . 222Engine Air Cleaner/Filter . . . . . . 225Cooling System . . . . . . . . . . . . . . 226Engine Coolant . . . . . . . . . . . . . . . 227Engine Overheating . . . . . . . . . . 230Engine Fan . . . . . . . . . . . . . . . . . . . 231Power Steering Fluid . . . . . . . . . 232Washer Fluid . . . . . . . . . . . . . . . . . 233Brakes . . . . . . . . . . . . . . . . . . . . . . . 233Brake Fluid . . . . . . . . . . . . . . . . . . . 234
Battery - North America . . . . . . 236Rear Axle . . . . . . . . . . . . . . . . . . . . 236Noise Control System . . . . . . . . 237Starter Switch Check . . . . . . . . . 238Automatic Transmission ShiftLock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . 238Ignition Transmission LockCheck . . . . . . . . . . . . . . . . . . . . . . . 239Park Brake and P (Park)Mechanism Check . . . . . . . . . . 239Wiper Blade Replacement . . . . 239
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 240
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 240Halogen Bulbs . . . . . . . . . . . . . . . . 240Headlamps . . . . . . . . . . . . . . . . . . . 241Front Turn Signal, Sidemarker,and Parking Lamps . . . . . . . . . 242Ta i l l a m p s . . . . . . . . . . . . . . . . . . . . . 2 4 3Center High-MountedStoplamp (CHMSL) . . . . . . . . . 244License Plate Lamp . . . . . . . . . . 244Replacement Bulbs . . . . . . . . . . . 245
Electrical System
Electrical System Overload . . . 245Fuses and Circuit Breakers . . . 246
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 246Floor Console Fuse Block . . . . 249
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 252All-Season Tires . . . . . . . . . . . . . . 253Winter Tires . . . . . . . . . . . . . . . . . . 253All-Terrain Tires . . . . . . . . . . . . . . . 253Tire Sidewall Labeling . . . . . . . . 254Tire Designations . . . . . . . . . . . . . 256Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 257Tire Pressure . . . . . . . . . . . . . . . . . 260Tire Pressure MonitorSystem . . . . . . . . . . . . . . . . . . . . . . 261Tire Pressure MonitorOperation . . . . . . . . . . . . . . . . . . . 262Tire Inspection . . . . . . . . . . . . . . . . 265Tire Rotation . . . . . . . . . . . . . . . . . 265Dual Tire Rotation . . . . . . . . . . . . 266When It Is Time for NewTires . . . . . . . . . . . . . . . . . . . . . . . . 267Buying New Tires . . . . . . . . . . . . . 268Different Size Tires andWheels . . . . . . . . . . . . . . . . . . . . . . 269Uniform Tire QualityGrading . . . . . . . . . . . . . . . . . . . . . 270Wheel Alignment and TireBalance . . . . . . . . . . . . . . . . . . . . . 271Wheel Replacement . . . . . . . . . . 271