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
Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/6/16
194 Driving and Operating
.Vehicles with a 6-speedautomatic transmission haveCruise Grade Braking to helpmaintain driver selected speed.
Cruise Grade Braking is enabledwhen the vehicle is started andcruise control is active. It is notenabled in Range Selection Mode.It assists in maintaining driverselected speed when driving ondownhill grades by using the engineand transmission to slow thevehicle.
To d i s a b l e a n d e n a b l e C r u i s e G r a d eBraking for the current ignition keycycle, press and hold the Tow/Haulbutton for three seconds. A DICmessage displays. SeeTr a n s m i s s i o n M e s s a g e s011 8.
When the brakes are applied thecruise control is disengaged.
Ending Cruise Control
There are four ways to end cruisecontrol:
.Step lightly on the brake pedal.
.Press[.
.Shift the transmission toN(Neutral).
.To t u r n o f f c r u i s e c o n t r o l ,
pressI.
Erasing Speed Memory
The cruise control set speed is
erased from memory ifIis
pressed or if the vehicle isturned off.
Driver Assistance
Systems
Rear Vision
Camera (RVC)
If equipped, the RVC system isdesigned to help the driver whenbacking up by displaying a view ofthe area behind the vehicle.
{Warning
The camera(s) do not display
children, pedestrians, bicyclists,
crossing traffic, animals, or any
other object outside of the
cameras’field of view, below the
bumper, or under the vehicle.
Shown distances may be different
from actual distances. Do not
drive or park the vehicle using
only these camera(s). Always
check behind and around the
vehicle before driving. Failure to
use proper care may result in
injury, death, or vehicle damage.
Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/6/16
Driving and Operating 195
Vehicles without Navigation
System
When the vehicle is on and shiftedinto R (Reverse), the video imageappears on the inside rearviewmirror. The video image disappearsafter the vehicle is shifted out ofR(Reverse).
Vehicles with Navigation
System
When the vehicle is shifted intoR(Reverse), the video imageappears on the navigation screen.After a delay, the navigation screendisplays the previous screen afterthe vehicle is shifted out ofR(Reverse).
The delay that is received aftershifting out of R (Reverse) isapproximately 10 seconds. Return tothe previous screen sooner byperforming one of the following:
.Press a hard key on thenavigation system.
.Shift into P (Park).
.Reach a vehicle speed of8km/h (5mph).
Symbols and Guidelines
The navigation system may have afeature that allows for viewingparking assist symbols and/orguidelines on the navigation screenwhile using the RVC. The RearParking Assist (RPA) system mustnot be disabled to use the cautionsymbols. If RPA has been disabledand the symbols have been turnedon, the Rear Parking AssistSymbols Unavailable error messagemay display. SeeParkingAssist0197.
The symbols appear near objectsdetected by the RPA system. Thesymbol may cover the object whenviewing the navigation screen. Theguideline overlay can help the driveralign the vehicle when backing intoaparkingspot.
To t u r n t h e s y m b o l s o r g u i d e l i n e s o nor off:
1. Shift into P (Park).
2. Press MENU to enter theconfigure menu options. Turnthe Multifunction knob until theDisplay feature is highlighted
and press the Multifunctionknob; or press the Displayscreen button.
3. Select the Rear CameraOptions screen button. TheRear Camera Options screendisplays.
4. Touch the Symbols orGuidelines screen button. Thescreen button will behighlighted when the featureis on.
RVC Location
The camera is next to the licenseplate.
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 - 5/6/16
Driving and Operating 199
Caution (Continued)
.Fuel containing metals suchas methylcyclopentadienylmanganese tricarbonyl(MMT), which can damagethe emissions controlsystem and spark plugs.
.Fuel with a posted octanerating of less than therecommended fuel. Usingthis fuel will lower fueleconomy and performance,and may decrease the life ofthe emissions catalyst.
California Fuel
Requirements
If the vehicle is certified to meetCalifornia Emissions Standards, it isdesigned to operate on fuels thatmeet California specifications. Seethe underhood emission controllabel. If this fuel is not available instates adopting California EmissionsStandards, the vehicle will operatesatisfactorily on fuels meetingfederal specifications, but emission
control system performance may beaffected. The malfunction indicatorlamp could turn on and the vehiclemay not pass a smog-check test.SeeMalfunction Indicator Lamp(Check Engine Light)0102.Ifthisoccurs, return to your authorizeddealer for diagnosis. If it isdetermined that the condition iscaused by the type of fuel used,repairs may not be covered by thevehicle warranty.
Fuels in Foreign
Countries
The U.S., Canada, and Mexico postfuel octane ratings in anti-knockindex (AKI). For fuel not to use in aforeign country, see“ProhibitedFuels”inFuel0198.
Fuel Additives
To k e e p f u e l s y s t e m s c l e a n , T O PTIER Detergent Gasoline isrecommended. SeeFuel0198.
If TOP TIER Detergent Gasoline isnot available, one bottle of GM FuelSystem Treatment Cleaner added tothe fuel tank at every engine oil
change, can help. GM Fuel SystemTreatment Cleaner is the onlygasoline additive recommended byGeneral Motors. It is available atyour dealer.
If your vehicle is able to use E85 orFlexFuel, GM Fuel SystemTreatment Cleaner - FlexFuel is theonly recommended additive for use.Do not use any other additives withan E85 or FlexFuel vehicle. SeeE85 or FlexFuel0199.
E85 or FlexFuel
Vehicles with a yellow fuel cap canuse either unleaded gasoline or fuelcontaining up to 85% ethanol (E85).All other vehicles should use onlythe unleaded gasoline as describedinFuel0198.
The use of E85 or FlexFuel isencouraged when the vehicle isdesigned to use it. E85 or FlexFuelis made from renewable sources.
To h e l p l o c a t e f u e l s t a t i o n s t h a tcarry E85 or FlexFuel, the U.S.Department of Energy has an
Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/6/16
Driving and Operating 201
Warning (Continued)
.Fuel can spray out if the fuelcap is opened too quickly.This spray can happen if thetank is nearly full, and ismore likely in hot weather.Open the fuel cap slowlyand wait for any hiss noiseto stop, then unscrew thecap all the way.
The fuel cap is behind a hinged fueldoor on the driver side of thevehicle.
If the vehicle has E85 fuel capability,the fuel cap will be yellow and statethat E85 or gasoline can be used.SeeE85 or FlexFuel0199.
To r e m o v e t h e f u e l c a p , t u r n i tslowly counterclockwise.
While refueling, hang the tetheredfuel cap from the hook on thefuel door.
{Warning
Overfilling the fuel tank by more
than three clicks of a standard fill
nozzle may cause:
.Vehicle performance issues,including engine stalling anddamage to the fuel system.
.Fuel spills.
.Potential fuel fires.
Be careful not to spill fuel. Wait afew seconds after you have finishedpumping before removing thenozzle. Clean fuel from paintedsurfaces as soon as possible. SeeExterior Care0288.
When replacing the fuel cap, turn itclockwise until it clicks. Make surethe cap is fully installed. Thediagnostic system can determine ifthe fuel cap has been left off orimproperly installed. This wouldallow fuel to evaporate into theatmosphere. SeeMalfunctionIndicator Lamp (Check EngineLight)0102.
{Warning
If a fire starts while you are
refueling, do not remove the
nozzle. Shut off the flow of fuel by
shutting off the pump or by
notifying the station attendant.
Leave the area immediately.
Caution
If a new fuel cap is needed, be
sure to get the right type of cap
from your dealer. The wrong type
of fuel cap may not fit properly,
may cause the malfunction
(Continued)
Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/6/16
202 Driving and Operating
Caution (Continued)
indicator lamp to light, and could
damage the fuel tank and
emissions system. See
Malfunction Indicator Lamp
(Check Engine Light)0102.
Filling a Portable Fuel
Container
{Warning
Filling a portable fuel container
while it is in the vehicle can cause
fuel vapors that can ignite either
by static electricity or other
means. You or others could be
badly burned and the vehicle
could be damaged. Always:
.Use approved fuelcontainers.
.Remove the container fromthe vehicle, trunk, or pickupbed before filling.
(Continued)
Warning (Continued)
.Place the container on theground.
.Place the nozzle inside thefill opening of the containerbefore dispensing fuel, andkeep it in contact with the fillopening until filling iscomplete.
.Fill the container no morethan 95% full to allow forexpansion.
.Do not smoke, lightmatches, or use lighterswhile pumping fuel.
.Avoid using cell phones orother electronic devices.
Trailer Towing
General Towing
Information
Only use towing equipment that hasbeen designed for the vehicle.Contact your dealer or traileringdealer for assistance with preparingthe vehicle for towing a trailer. Readthe entire section before towing atrailer.
For towing a disabled vehicle, seeTo w i n g t h e V e h i c l e0286.Fortowing the vehicle behind anothervehicle such as a motor home, seeRecreational Vehicle Towing0286.
Driving Characteristics
and Towing Tips
Driving with a Trailer
When towing a trailer:
.Become familiar with the stateand local laws that apply totrailer towing.
Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/6/16
Driving and Operating 211
State and local regulations may alsorequire the trailer to have its ownbraking system if loaded above acertain threshold.
Be sure to read and follow theinstructions for the trailer brakes sothey are installed, adjusted, andmaintained properly.
Do not tap into the vehicle'shydraulic brake system.
Trailer Wiring Harness
The optional heavy-duty trailerwiring package includes a wiringharness, with a seven-pin connectorat the rear of the vehicle and afour-wire harness assembly underthe driver side of the instrumentpanel. The four-wire harnessassembly comes without aconnector.
If the vehicle does not have a trailerhitch, the seven-wire harnessassembly with connector is tapedtogether and located in a framepocket at the driver side rear leftcorner of the frame.
If the vehicle has a trailer hitch, theseven-wire harness assembly withconnector is attached to a bracketon the hitch platform. In both cases,the seven-wire harness has aconnector and includes a 30-ampfeed wire.
Use only a round, seven-wireconnector with flat blade terminalsmeeting SAE J2863 specificationsfor proper electrical connectivity.
The seven-wire harness connectorcontains the following trailer circuits:
.Light Green: Back-up Lamps(10A fuse)**
.White: Ground
.Dark Blue: Trailer Brake Signal
.Dark Green: Right Rear Stopand Turn Signal*
.Red/Black Stripe: Battery Feed(30A Fuse)
.Brown: Trailer Park LampSupply Voltage (15A fuse)**
.Ye l l o w : L e f t R e a r S t o p a n d Tu r nSignal *
The four-wire harness (withoutconnector) contains the followingcircuits:
.Black: Ground
.Red/White: Battery Feed
.Dark Blue: Trailer Brake Signal
.Light Blue: CHMSL/StoplampSupply Voltage
*Ifthevehicleisacutawaywithtrailer provisions, a 15 amp fuse willbe shared for both left/stop trailerturn and right/stop trailer turnsignals. However, the cutawaylighting connector will have a10 amp fuse for each signal.
** If the vehicle is a cutaway withtrailer provisions, a 15 amp fuse willbe shared for trailer park lamps andcutaway rear lighting connector parklamps. Also, a 10 amp fuse will beshared for trailer back-up lamps andcutaway rear lighting connectorback-up lamps.
Tow/Haul Mode
This button is on the instrumentpanel, to the right of the steeringwheel.