2017 CHEVROLET EXPRESS CARGO VAN maintenance

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/6/16
212 Driving and Operating
Pressing this button turns on and offthe Tow/Haul Mode.
This indicator light on the instrumentcluster comes on when the Tow/Haul Mode is on.
To w / H a u l i s a f e a t u r e t h a t a s s i s t swhen pulling a heavy trailer or alarge or heavy load. SeeTo w / H a u lMode0187.
To w / H a u l i s d e s i g n e d t o b e m o s teffective when the vehicle andtrailer combined weight is at least75 percent of the vehicle GrossCombined Weight Rating (GCWR).See“Weight of the Trailer”inTr a i l e rTo w i n g0205.Tow/Haulismostuseful under the following drivingconditions:
.When pulling a heavy trailer or alarge or heavy load throughrolling terrain.
.When pulling a heavy trailer or alarge or heavy load instop-and-go traffic.
.When pulling a heavy trailer or alarge or heavy load in busyparking lots where improved lowspeed control of the vehicle isdesired.
Operating the vehicle in Tow/HaulMode when lightly loaded or with notrailer at all will not cause damage.However, there is no benefit to theselection of Tow/Haul when thevehicle is unloaded. Such aselection when unloaded may resultin unpleasant engine andtransmission driving characteristicsand reduced fuel economy. Tow/Haul is recommended only whenpulling a heavy trailer or a large orheavy load.
Conversions and
Add-Ons
Add-On Electrical
Equipment
{Warning
The Data Link Connector (DLC) is
used for vehicle service and
Emission Inspection/Maintenance
testing. SeeMalfunction Indicator
Lamp (Check Engine Light)
0102.Adeviceconnectedtothe
DLC—such as an aftermarket
fleet or driver-behavior tracking
device—may interfere with
vehicle systems. This could affect
vehicle operation and cause a
crash. Such devices may also
access information stored in the
vehicle’ssystems.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
Vehicle Care 217
Keep a record with all parts receiptsand list the mileage and the date ofany service work performed. SeeMaintenance Records0307.
Caution
Even small amounts of
contamination can cause damage
to vehicle systems. Do not allow
contaminants to contact the fluids,
reservoir caps, or dipsticks.
Hood
To o p e n t h e h o o d :
1. Pull the handle with this symbolon it. It is in front of the driverside door frame near the floor.
2. Go to the front of the vehicleand lift up the secondary hoodrelease, which is underneaththe middle of the hood.
3. Lift the hood, release the hoodprop from its retainer, and putthe hood prop into the slot inthe hood.
If the vehicle has an underhoodlamp, it will automatically come onand stay on until the hood is closed.
Before closing the hood, be sure allof the filler caps are on properly.Then lift the hood to relievepressure on the hood prop. Removethe hood prop from the slot in thehood and return the prop to itsretainer. Let the hood down andclose it firmly.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
222 Vehicle Care
system might indicate that an oilchange is not necessary for up to ayear. The engine oil and filter mustbe changed at least once a yearand, at this time, the system mustbe reset. Your dealer has trainedservice people who will perform thiswork and reset the system. It is alsoimportant to check the oil regularlyover the course of an oil draininterval and keep it at the properlevel.
If the system is ever resetaccidentally, the oil must bechanged at 5 000 km (3,000 mi)since the last oil change.Remember to reset the oil lifesystem whenever the oil is changed.
How to Reset the Engine Oil
Life System
Reset the system whenever theengine oil is changed so that thesystem can calculate the nextengine oil change. To reset thesystem:
1. Turn the ignition key to ON/RUN with the engine off.
2. Fully press and release theaccelerator pedal slowly threetimes within five seconds.
3. Turn the key to LOCK/OFF.
If the CHANGE ENGINE OIL SOONmessage comes back on when thevehicle is started, the engine oil lifesystem has not reset. Repeat theprocedure.
Automatic Transmission
Fluid
When to Check and Change
Automatic Transmission Fluid
It is usually not necessary to checkthe transmission fluid level. The onlyreason for fluid loss is atransmission leak or overheatedtransmission. If a small leak issuspected, use the followingprocedures to check the fluid level.However, if there is a large leak, itmay be necessary to have thevehicle towed to a dealer and haveit repaired before driving the vehiclefurther.
Change the fluid and filter at theintervals listed inMaintenanceSchedule0297,andbesuretousethe transmission fluid listed inRecommended Fluids andLubricants0305.
How to Check Automatic
Transmission Fluid
Because this operation can bedifficult, it is recommended to havethis check done at your dealer,which can monitor the transmissiontemperature. The transmission fluidlevel increases with temperature. Toobtain a highly accurate fluid levelcheck, the transmission temperaturemust be measured.
If it is decided to check the fluidlevel, be sure to follow all theinstructions here, or a false readingon the dipstick may occur.
Caution
To o m u c h o r t o o l i t t l e f l u i d c a n
damage the transmission. Too
much can mean that some of the
(Continued)

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
Vehicle Care 225
Caution
Use of the incorrect automatic
transmission fluid may damage
the vehicle, and the damage may
not be covered by the vehicle
warranty. Always use the
automatic transmission fluid listed
inRecommended Fluids and
Lubricants0305.
.After adding fluid, recheck thefluid level as described under“How to Check AutomaticTransmission Fluid,”earlier inthis section.
.When the correct fluid level isobtained, push the dipstick backin all the way; then flip thehandle down to lock the dipstickin place.
Engine Air Cleaner/Filter
The air cleaner/filter assembly is onthe front of the engine compartmenton the driver side of the vehicle.SeeEngine CompartmentOverview0218.
When to Inspect the Engine AirCleaner/Filter
For intervals on changing andinspecting the engine air filter, seeMaintenance Schedule0297.
How to Inspect the Engine AirCleaner/Filter
Do not start the engine or have theengine running with the engine airfilter housing open. Before removingthe engine air filter, make sure thatthe engine air filter housing andnearby components are free of dirtand debris. Remove the engine airfilter. Lightly tap and shake theengine air filter (away from thevehicle) to release dust and dirt.Inspect the engine air filter fordamage, and replace if damaged.Do not clean the engine air filter orcomponents with water orcompressed air.
6.0L V8 Engine Shown, 4.8L
V8 Engine Similar
1. Retaining Clips
2. Housing Base
3. Housing Cover
To i n s p e c t a n d r e p l a c e t h e f i l t e r :
1. Unlock the two retainingclips (1) on the sides of thehousing cover (3) and on thehousing base (2) and pull thecover off.
2. Remove the air cleaner/filterfrom the housing base. Takecare to dislodge as little dirt aspossible.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
226 Vehicle Care
3. Clean the air cleaner/filtersealing surface andhousing base.
4. Install the engine air cleaner/filter by aligning the arrow onone side of the air cleaner/filterend cap with the arrow on topof the housing base.
5. Install the housing cover byaligning the arrow on top of thecover to the arrow on top of thehousing base, and fasten thetwo retaining clips.
SeeMaintenance Schedule0297todetermine when to replace theengine air cleaner/filter.
{Warning
Operating the engine with the air
cleaner/filter off can cause you or
others to be burned. The air
cleaner not only cleans the air; it
helps to stop flames if the engine
backfires. Use caution when
working on the engine and do not
drive with the air cleaner/filter off.
Caution
If the air cleaner/filter is off, dirt
can easily get into the engine,
which could damage it. Always
have the air cleaner/filter in place
when you are driving.
Cooling System
The cooling system allows theengine to maintain the correctworking temperature.
6.0L V8 Engine Shown, 4.8L
V8 Engine Similar
1. Radiator Pressure Cap
2. Coolant Recovery Tank
3. Engine Cooling Fan (Outof View)
{Warning
An electric engine cooling fan can
start even when the engine is not
running. To avoid injury, always
keep hands, clothing, and tools
away from any engine
cooling fan.
{Warning
Heater and radiator hoses, and
other engine parts, can be very
hot. Do not touch them. If you do,
you can be burned.
Do not run the engine if there is a
leak. If you run the engine, it
could lose all coolant. That could
cause an engine fire, and you
could be burned. Get any leak
fixed before you drive the vehicle.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
Vehicle Care 235
Warning (Continued)
Add brake fluid only when work is
done on the brake hydraulic
system.
When the brake fluid falls to a lowlevel, the brake warning light comeson. SeeBrake System WarningLight0104.
Brake fluid absorbs water over time.Replace brake fluid at the specifiedintervals to prevent increasedstopping distance. SeeMaintenanceSchedule0297.
Checking Brake Fluid
Check brake fluid by looking at thebrake fluid reservoir. SeeEngineCompartment Overview0218.
The fluid level should be aboveMIN. If it is not, have the brakehydraulic system checked to see ifthere is a leak.
After work is done on the brakehydraulic system, make sure thelevel is above MIN but not over theMAX mark.
What to Add
Use only GM approved DOT 3brake fluid from a clean, sealedcontainer. SeeRecommendedFluids and Lubricants0305.
{Warning
The wrong or contaminated brake
fluid could result in damage to the
brake system. This could result in
the loss of braking leading to a
possible injury. Always use the
proper GM approved brake fluid.
Caution
If brake fluid is spilled on the
vehicle's painted surfaces, the
paint finish can be damaged.
Immediately wash off any painted
surface.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
236 Vehicle Care
Battery - North America
The original equipment battery ismaintenance free. Do not removethe cap and do not add fluid.
Refer to the replacement numbershown on the original battery labelwhen a new battery is needed. SeeEngine Compartment Overview0218for battery location.
{Warning
WA R N I N G :Battery posts,
terminals, and related
accessories contain lead and lead
compounds, chemicals known to
the State of California to cause
cancer and birth defects or other
reproductive harm. Batteries also
contain other chemicals known to
the State of California to cause
cancer.WASH HANDS AFTER
HANDLING.
SeeCalifornia Proposition
65 Warning0215.
Vehicle Storage
{Warning
Batteries have acid that can burn
you and gas that can explode.
Yo u c a n b e b a d l y h u r t i f y o u a r e
not careful. SeeJump Starting -
North America0282for tips on
working around a battery without
getting hurt.
Infrequent Usage: Remove theblack, negative (✓)cablefromthebattery to keep the battery fromrunning down.
Extended Storage: Remove theblack, negative (✓)cablefromthebattery or use a battery tricklecharger.
Rear Axle
When to Check Lubricant
It is not necessary to regularlycheck rear axle fluid unless yoususpect there is a leak or you hear
an unusual noise. A fluid loss couldindicate a problem. Have itinspected and repaired.
How to Check Lubricant
To g e t a n a c c u r a t e r e a d i n g , t h evehicle should be on a levelsurface.
For axles with the fill plug locatedon the back cover of the rear axle,the proper level is 15 mm to 40 mm(0.59 to 1.57 in) below the bottom ofthe fill hole.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
Vehicle Care 237
For axles with the fill plug locatedon the passenger side of the rearaxle, the proper level is 0 mm to10 mm (0 to 0.4 in) below the bottomof the fill hole.
What to Use
Refer toRecommended Fluids andLubricants0305to determine whatkind of lubricant to use.
Noise Control System
Noise Emission Warranty
General Motors warrants to the firstperson who purchases this vehiclefor purposes other than resale andto each subsequent purchaser that
this vehicle as manufactured byGeneral Motors was designed, builtand equipped to conform at the timeit left General Motors control with allapplicable U.S. EPA Noise ControlRegulations. This warranty coversthis vehicle as designed, built andequipped by General Motors and isnot limited to any particular part,component or system of themanufactured by General Motors.Defects in design, assembly or anypart, component or system of thevehicle manufactured by GeneralMotors, which at the time it leftGeneral Motors control causednoise emissions to exceed Federalstandards, are covered by thewarranty for the life of the vehicle.
The following information relates tocompliance with federal noiseemission standards for vehicles withaGrossVehicleWeightRating(GVWR) of more than 4 536 kg(10,000 lbs). The MaintenanceSchedule provides information onmaintaining the noise control systemto minimize degradation of the noiseemission control system during the
life of the vehicle. The noise controlsystem warranty is given in thevehicle warranty booklet.
These standards apply only tovehicles sold in the United States.
Federal law prohibits the followingacts or the causing thereof:
1. The removal or renderinginoperative by any person,other than for purposes ofmaintenance, repair orreplacement, of any device orelement of design incorporatedinto any new vehicle for thepurpose of noise control, priorto its sale or delivery to theultimate purchaser or while it isin use; or
2. The use of the vehicle aftersuch device or element ofdesign has been removed orrendered inoperative by anyperson.