transmission CHEVROLET EXPRESS CARGO VAN 2017 1.G Service Manual

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
Vehicle Care 257
Light Truck (LT-Metric) Tire
(1) Light Truck (LT-Metric)
Tire:The United States version
of a metric tire sizing system.
The letters LT as the first two
characters in the tire size mean
alighttrucktireengineeredto
standards set by the U.S. Tire
and Rim Association.
(2) Tire Width:The three-digit
number indicates the tire section
width in millimeters from
sidewall to sidewall.
(3) Aspect Ratio:Atwo-digit
number that indicates the tire
height-to-width measurements.
For example, if the tire size
aspect ratio is 75, as shown in
item 3 of the light truck
(LT-Metric) tire illustration, it
would mean that the tire's
sidewall is 75 percent as high as
it is wide.
(4) Construction Code:Aletter
code is used to indicate the type
of ply construction in the tire.
The letter R means radial ply
construction; the letter D means
diagonal or bias ply
construction; and the letter B
means belted-bias ply
construction.
(5) Rim Diameter:Diameter of
the wheel in inches.
(6) Load Range:Load Range.
(7) Service Description:The
service description indicates the
load index and speed rating of a
tire. If two numbers are given as
in the example, 120/116, then
this represents the load index for
single versus dual wheel usage
(single/dual). The speed rating is
the maximum speed a tire is
certified to carry a load. This
does not apply to Goodyear
LT 2 2 5 / 7 5 R 1 6 G 9 4 9 R S A a n d
Goodyear LT225/75R16 G933
RSD commercial truck tires; see
the dual tire and single tire
maximum load and load range
letter designations on the tire
sidewall.
Tire Terminology and
Definitions
Air Pressure:The amount of
air inside the tire pressing
outward on each square inch of
the tire. Air pressure is
expressed in kPa (kilopascal)
or psi (pounds per square inch).
Accessory Weight:The
combined weight of optional
accessories. Some examples of
optional accessories are
automatic transmission, power
windows, power seats, and air
conditioning.
Aspect Ratio:The relationship
of a tire's height to its width.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
274 Vehicle Care
Warning (Continued)
training. If a jack is provided with
the vehicle, it is designed only for
changing a flat tire. If it is used for
anything else, you or others could
be badly injured or killed if the
vehicle slips off the jack. If a jack
is provided with the vehicle, only
use it for changing a flat tire.
If a tire goes flat, avoid further tireand wheel damage by driving slowlyto a level place, well off the road,if possible. Turn on the hazardwarning flashers. SeeHazardWarning Flashers0128.
{Warning
Changing a tire can be
dangerous. The vehicle can slip
off the jack and roll over or fall
causing injury or death. Find a
level place to change the tire. To
help prevent the vehicle from
moving:
(Continued)
Warning (Continued)
1. Set the parking brake firmly.
2. Put an automatictransmission in P (Park) or amanual transmission in1(First) or R(Reverse).
3. Turn off the engine and donot restart while the vehicleis raised.
4. Do not allow passengers toremain in the vehicle.
5. Place wheel blocks,if equipped, on both sides ofthe tire at the oppositecorner of the tire beingchanged.
When the vehicle has a flat tire (2),use the following example as aguide to assist in the placement ofthe wheel blocks (1), if equipped.
1. Wheel Block (If Equipped)
2. Flat Tire
The following information explainshow to repair or change a tire.
Tire Changing
Removing the Spare Tire and
Tools
Equipment needed for a cargo vanor a passenger van is in thepassenger side rear corner of thevehicle.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
Vehicle Care 283
Caution
Ignoring these steps could result
in costly damage to the vehicle
that would not be covered by the
vehicle warranty. Trying to start
the vehicle by pushing or pulling it
will not work, and it could damage
the vehicle.
1. Check the other vehicle.It must have a 12-volt batterywith a negative ground system.
Caution
If the other vehicle does not have
a12-voltsystemwithanegative
ground, both vehicles can be
damaged. Only use a vehicle that
has a 12-volt system with a
negative ground for jump starting.
2. Get the vehicles close enoughso the jumper cables canreach, but be sure the vehiclesare not touching each other.If they are, it could cause a
ground connection you do notwant. You would not be able tostart your vehicle, and the badgrounding could damage theelectrical systems.
To a v o i d t h e p o s s i b i l i t y o f t h evehicles rolling, set the parkingbrake firmly on both vehiclesinvolved in the jump startprocedure. Put an automatictransmission in P (Park) or amanual transmission in Neutralbefore setting the parkingbrake.
Caution
If any accessories are left on or
plugged in during the jump
starting procedure, they could be
damaged. The repairs would not
be covered by the vehicle
warranty. Whenever possible, turn
off or unplug all accessories on
either vehicle when jump starting.
3. Turn off the ignition on bothvehicles. Unplug unnecessaryaccessories plugged into the
cigarette lighter or theaccessory power outlet. Turnoff the radio and all lamps thatare not needed. This will avoidsparks and help save bothbatteries. And it could save theradio!
4. Open the hoods and locate thepositive (+) and negative (✓)terminal locations of the othervehicle.
On your van, use the unpaintedradio antenna bracket as aremote negative (✓)terminal.
{Warning
Using a match near a battery can
cause battery gas to explode.
People have been hurt doing this,
and some have been blinded.
Use a flashlight if you need more
light.
Battery fluid contains acid that
can burn you. Do not get it on
you. If you accidentally get it in
(Continued)

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
286 Vehicle Care
Towing the Vehicle
Caution
Incorrectly towing a disabled
vehicle may cause damage. The
damage would not be covered by
the vehicle warranty.
Do not lash or hook to
suspension components. Use the
proper straps around the tires to
secure the vehicle.
Use only a flatbed tow truck fortowing a disabled vehicle. Neveruse a sling type lift or damage willoccur. Use ramps to help reduceapproach angles if necessary.Atowedvehicleshouldhaveitsdrive wheels off the ground.
Consult a professional towingservice if the disabled vehicle mustbe towed.
Recreational Vehicle
Towing
Recreational vehicle towing meanstowing the vehicle behind anothervehicle, such as behind a motorhome. The two most common typesof recreational vehicle towing areknown as dinghy towing and dollytowing. Dinghy towing is towing thevehicle with all four wheels on theground. Dolly towing is towing thevehicle with two wheels on theground and two wheels up on adevice known as a dolly.
Here are some important things toconsider before recreational vehicletowing:
.What is the towing capacity ofthe towing vehicle? Be sure toread the tow vehiclemanufacturer'srecommendations.
.What is the distance that will betraveled? Some vehicles haverestrictions on how far and howlong they can tow.
.Is the proper towing equipmentgoing to be used? See yourdealer or trailering professionalfor additional advice andequipment recommendations.
.Is the vehicle ready to betowed? Just as preparing thevehicle for a long trip, make surethe vehicle is prepared to betowed.
Caution
Use of a shield mounted in front
of the vehicle grille could restrict
airflow and cause damage to the
transmission. The repairs would
not be covered by the vehicle
warranty. If using a shield, only
use one that attaches to the
towing vehicle.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
Vehicle Care 287
Dinghy Towing
Caution
If the vehicle is towed with all four
wheels on the ground, the
drivetrain components could be
damaged. The repairs would not
be covered by the vehicle
warranty. Do not tow the vehicle
with all four wheels on the
ground.
The vehicle should not be towedwith all four wheels on the ground.
Dolly Towing
Rear Towing (Rear Wheels Off theGround)
To t o w t h e v e h i c l e f r o m t h e r e a r :
1. Attach the dolly to the towvehicle following the dollymanufacturer's instructions.
2. Drive the rear wheels onto thedolly.
3. Firmly set the parking brake.SeeParking Brake0189.
4. Put the transmission inP(Park).
5. Secure the vehicle to the dollyfollowing the manufacturer'sinstructions.
6. Use an adequate clampingdevice designed for towing toensure that the front wheelsare locked into the straightposition.
7. Turn the ignition to LOCK/OFF.
If the tow vehicle will not bestarted or driven for six weeksor more, remove the batterycable from the negativeterminal (post) of the battery toprevent the battery fromdraining while towing.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
298 Service and Maintenance
ayearandtheoillifesystemmustbe reset. Your trained dealertechnician can perform this work.If the engine oil life system is resetaccidentally, service the vehiclewithin 5 000 km/3,000 mi since thelast service. Reset the oil lifesystem when the oil is changed.SeeEngine Oil Life System0221.
Tire Rotation and Required
Services Every 12 000 km/
7,500 mi
Rotate the tires, if recommended forthe vehicle, and perform thefollowing services. SeeTireRotation0265.
.Check engine oil level and oillife percentage. If needed,change engine oil and filter, andreset oil life system. SeeEngineOil0219andEngine Oil LifeSystem0221.
.Check engine coolant level. SeeEngine Coolant0227.
.Check windshield washer fluidlevel. SeeWasher Fluid0233.
.Visually inspect windshield wiperblades for wear, cracking,or contamination. SeeExteriorCare0288.Replacewornordamaged wiper blades. SeeWiper BladeReplacement0239.
.Check tire inflation pressures.SeeTire Pressure0260.
.Inspect tire wear. SeeTireInspection0265.
.Visually check for fluid leaks.
.Inspect engine air cleaner filter.SeeEngine Air Cleaner/Filter0225.
.Inspect brake system. SeeExterior Care0288.
.Visually inspect steering,suspension, and chassiscomponents for damaged, loose,or missing parts or signs ofwear. SeeExterior Care0288.
.Check restraint systemcomponents. SeeSafety SystemCheck054.
.Visually inspect fuel system fordamage or leaks.
.Visually inspect exhaust systemand nearby heat shields forloose or damaged parts.
.Lubricate body components. SeeExterior Care0288.
.Check starter switch. SeeStarterSwitch Check0238.
.Check automatic transmissionshift lock control function. SeeAutomatic Transmission ShiftLock Control FunctionCheck0238.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
Service and Maintenance 299
.Check ignition transmission lock.SeeIgnition Transmission LockCheck0239.
.Check parking brake andautomatic transmission parkmechanism. SeePark Brake andP(Park)MechanismCheck0239.
.Check accelerator pedal fordamage, high effort, or binding.Replace if needed.
.Visually inspect gas strut forsigns of wear, cracks, or otherdamage. Check the hold openability of the strut. See yourdealer if service is required.
.Lubricate the steering linkage(greasable joints). See Normaland Severe MaintenanceSchedules. For severecommercial use vehicles, seeSpecial ApplicationServices0302.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
Service and Maintenance 301
Maintenance ScheduleAdditional RequiredServices - Severe
12 000 km/7,500 mi24 000 km/15,000 mi36 000 km/22,500 mi48 000 km/30,000 mi60 000 km/37,500 mi72 000 km/45,000 mi84 000 km/52,500 mi96 000 km/60,000 mi108 000 km/67,500 mi120 000 km/75,000 mi132 000 km/82,500 mi144 000 km/90,000 mi156 000 km/97,500 mi168 000 km/105,000 mi180 000 km/112,500 mi192 000 km/120,000 mi204 000 km/127,500 mi216 000 km/135,000 mi228 000 km/142,500 mi240 000 km/150,000 mi
Rotate tires and perform Required Services.Check engine oil level and oil life percentage.Change engine oil and filter, if needed.Lubricate the steering linkage.@@@@@@@@@@@@@@@@@@@@
Inspect evaporative control system. (1)@@@
Replace engine air cleaner filter. (2)@@@
Change automatic transmission fluid and filter.@@@
Replace spark plugs. Inspect spark plug wires.@
Drain and fill engine cooling system. (3)@
Visually inspect accessory drive belts. (4)@
Replace brake fluid. (5)
Footnotes—MaintenanceSchedule Additional RequiredServices - Severe
(1)Visually check all fuel and vaporlines and hoses for properattachment, connection, routing, andcondition.
(2)Or every four years, whichevercomes first. If driving in dustyconditions, inspect the filter at eachoil change or more often as needed.
(3)Or every five years, whichevercomes first. SeeCoolingSystem0226.
(4)Or every 10 years, whichevercomes first. Inspect for fraying,excessive cracking, or damage;replace, if needed.
(5)Replace brake fluid every fiveyears. SeeBrake Fluid0234.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
Service and Maintenance 305
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
This maintenance section applies to vehicles with a gasoline engine. If the vehicle has a diesel engine, see themaintenance schedule section in the Duramax diesel supplement.
Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer.
Usage Fluid/Lubricant
Automatic Transmission DEXRON®-VI Automatic Transmission Fluid.
Chassis Lubrication, Parking BrakeCable GuidesChassis Lubricant (GM Part No. 12377985, in Canada 88901242) orlubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL®Coolant.SeeEngine Coolant0227.
Engine Oil Engine oil meeting the dexos1™specification of the proper SAE viscositygrade. ACDelco dexos1 Synthetic Blend is recommended. SeeEngineOil0219.
Front Wheel Bearings Wheel bearing lubricant meeting requirements of NLGI #2, Category GC orGC-LB (GM Part No. 1051344, in Canada 993037).
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 19299818, inCanada 19299819).
Key Lock Cylinders, Hood Hinges Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, inCanada 10953474).
Power Steering System GM Power Steering Fluid (GM Part No. 19329450, in Canada 89021186).

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
Customer Information 321
.Vehicle make, model, andmodel year.
.Vehicle IdentificationNumber (VIN).
.Insurance company and policynumber.
.General description of thedamage to the other vehicle.
Choose a reputable repair facilitythat uses quality replacement parts.See“Collision Parts”earlier in thissection.
If the airbag has inflated, seeWhatWill You See after an AirbagInflates?060.
Managing the Vehicle Damage
Repair Process
In the event that the vehicle requiresdamage repairs, GM recommendsthat you take an active role in itsrepair. If you have a pre-determinedrepair facility of choice, take thevehicle there, or have it towed there.Specify to the facility that anyrequired replacement collision partsbe original equipment parts, eithernew Genuine GM parts or recycled
original GM parts. Remember,recycled parts will not be covered bythe GM vehicle warranty.
Insurance pays the bill for the repair,but you must live with the repair.Depending on your policy limits,your insurance company mayinitially value the repair usingaftermarket parts. Discuss this withthe repair professional, and insist onGenuine GM parts. Remember,if the vehicle is leased, you may beobligated to have the vehiclerepaired with Genuine GM parts,even if your insurance coveragedoes not pay the full cost.
If another party's insurancecompany is paying for the repairs,you are not obligated to accept arepair valuation based on thatinsurance company's collision policyrepair limits, as you have nocontractual limits with that company.In such cases, you can have controlof the repair and parts choices aslong as the cost stays withinreasonable limits.
Service Publications
Ordering Information
Service Manuals
Service Manuals have the diagnosisand repair information on theengines, transmission, axle,suspension, brakes, electrical,steering, body, etc.
Service Bulletins
Service Bulletins give additionaltechnical service informationneeded to knowledgeably serviceGeneral Motors cars and trucks.Each bulletin contains instructionsto assist in the diagnosis andservice of the vehicle.
Owner Information
Owner publications are writtenspecifically for owners and intendedto provide basic operationalinformation about the vehicle. TheOwner Manual includes theMaintenance Schedule for allmodels.