check engine CHEVROLET SILVERADO 2017 3.G Service Manual

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Vehicle Care 375
Power Steering Fluid
(1500 Series)
The vehicle has electric powersteering and does not use powersteering fluid.
Power Steering Fluid
(2500/3500 Series)
SeeEngine Compartment Overview0354for reservoir location.
When to Check Power Steering
Fluid
It is not necessary to regularlycheck power steering fluid unlessthere is a leak suspected in thesystem or an unusual noise isheard. A fluid loss in this systemcould indicate a problem. Have thesystem inspected and repaired.
Wait for the power steering systemto cool, with the engine off, beforechecking the fluid.
How to Check Power Steering
Fluid
To c h e c k t h e p o w e r s t e e r i n g f l u i d :
1. Turn the key off and let theengine compartmentcool down.
2. Wipe the cap and the top of thereservoir clean.
3. Unscrew the cap and wipe thedipstick with a clean rag.
4. Replace the cap andcompletely tighten it.
5. Remove the cap again andlook at the fluid level on thedipstick.
The level should be between theADD and FULL marks. If necessary,add only enough fluid to bring thelevel up to the hashed area betweenthe ADD and FULL marks.
What to Use
To d e t e r m i n e w h a t k i n d o f f l u i d t ouse, seeRecommended Fluids andLubricants0462.Alwaysusetheproper fluid.
Caution
Use of the incorrect fluid may
damage the vehicle and the
damages may not be covered by
the vehicle warranty. Always use
the correct fluid listed in
Recommended Fluids and
Lubricants0462.
Washer Fluid
What to Use
When windshield washer fluid needsto be added, be sure to read themanufacturer's instructions beforeuse. Use a fluid that has sufficientprotection against freezing in anarea where the temperature may fallbelow freezing.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
378 Vehicle Care
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 WarningLight0140.
Brake fluid absorbs water over time.Replace brake fluid at the specifiedintervals to prevent increasedstopping distance. SeeMaintenanceSchedule0452.
Checking Brake Fluid
Check brake fluid by looking at thebrake fluid reservoir. SeeEngineCompartment Overview0354.
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 Lubricants0462.
{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.
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 Overview0354for battery location.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Vehicle Care 381
five minutes after the vehicle hasbeen driven will appear to have alower fluid level than a vehicle thathas been stationary for an hour ortwo. The rear axle assembly mustbe supported on a flat, level surfaceto get a true reading.
How to Check Lubricant
2500HD with 6.0L
All Other Series and Engines
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 all 4.3L and 5.3L 1500Series applications, the properlevel is 1.0 mm to 19.0 mm(0.04 in to 0.7 in) below thebottom of the fill hole, located onthe rear axle. Add only enoughfluid to reach the proper level.
.For 6.2L 1500 Seriesapplications, the proper level isfrom 15 mm to 40 mm (0.6 in to1.6 in) below the bottom of the
fill plug hole, located on the rearaxle. Add only enough fluid toreach the proper level.
.For all 6.0L 2500HD Seriesapplications, the proper level isfrom 0 mm to 13 mm (0 to 0.5 in)below the bottom of the fill plughole, located on the rear axle.Add only enough fluid to reachthe proper level.
.For all 6.6L Duramax Diesel2500HD Series applications andall 3500 Series applications, theproper level is from 17 mm to21 mm (0.6 in to 0.8 in) belowthe bottom of the fill plug hole,located on the rear axle. Addonly enough fluid to reach theproper level.
What to Use
Refer toRecommended Fluids andLubricants0462to determine whatkind of lubricant to use.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Vehicle Care 383
Starter Switch Check
{Warning
When you are doing this
inspection, the vehicle could
move suddenly. If the vehicle
moves, you or others could be
injured.
1. Before starting this check, besure there is enough roomaround the vehicle.
2. Apply both the parking brakeand the regular brake.
Do not use the acceleratorpedal, and be ready to turn offthe engine immediately if itstarts.
3. For automatic transmissionvehicles, try to start the enginein each gear. The vehicleshould start only in P (Park) orN(Neutral). If the vehicle startsin any other position, contactyour dealer for service.
For manual transmissionvehicles, put the shift lever inNeutral, push the clutch pedaldown halfway, and try to startthe engine. The vehicle shouldstart only when the clutchpedal is pushed down all theway to the floor. If the vehiclestarts when the clutch pedal isnot pushed all the way down,contact your dealer for service.
Automatic Transmission
Shift Lock Control
Function Check
{Warning
When you are doing this
inspection, the vehicle could
move suddenly. If the vehicle
moves, you or others could be
injured.
1. Before starting this check, besure there is enough roomaround the vehicle. It should beparked on a level surface.
2. Apply the parking brake. Beready to apply the regularbrake immediately if the vehiclebegins to move.
3. With the engine off, turn theignition on, but do not start theengine. Without applying theregular brake, try to move theshift lever out of P (Park) withnormal effort. If the shift levermoves out of P (Park), contactyour dealer for service.
Ignition Transmission
Lock Check
While parked, and with the parkingbrake set, try to turn the ignition toLOCK/OFF in each shift leverposition.
.For automatic transmissionvehicles, the ignition should turnto LOCK/OFF only when theshift lever is in P (Park).
.For manual transmissionvehicles, the ignition should turnto LOCK/OFF only when youpress the key release button.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
384 Vehicle Care
On all vehicles, the ignition keyshould come out only in LOCK/OFF.
Contact your dealer if service isrequired.
Park Brake and P (Park)
Mechanism Check
{Warning
When you are doing this check,
the vehicle could begin to move.
Yo u o r o t h e r s c o u l d b e i n j u r e d
and property could be damaged.
Make sure there is room in front
of the vehicle in case it begins to
roll. Be ready to apply the regular
brake at once should the vehicle
begin to move.
Park on a fairly steep hill, with thevehicle facing downhill. Keepingyour foot on the regular brake, setthe parking brake.
.To c h e c k t h e p a r k i n g b r a k e ' sholding ability: With the enginerunning and the transmission inN(Neutral), slowly remove foot
pressure from the regular brakepedal. Do this until the vehicle isheld by the parking brake only.
.To c h e c k t h e P ( P a r k )mechanism's holding ability:With the engine running, shift toP(Park). Then release theparking brake followed by theregular brake.
Contact your dealer if service isrequired.
Wiper Blade Replacement
Windshield wiper blades should beinspected for wear or cracking.
Replacement blades come indifferent types and are removed indifferent ways. For properwindshield wiper blade length andtype, seeMaintenanceReplacement Parts0464.
Caution
Allowing the wiper arm to touch
the windshield when no wiper
blade is installed could damage
(Continued)
Caution (Continued)
the windshield. Any damage that
occurs would not be covered by
the vehicle warranty. Do not allow
the wiper arm to touch the
windshield.
To r e p l a c e t h e w i n d s h i e l d w i p e rblade:
1. Pull the windshield wiperassembly away from thewindshield.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
390 Vehicle Care
Headlamp Wiring
An electrical overload may causethe lamps to go on and off, or insome cases to remain off. Have theheadlamp wiring checked right awayif the lamps go on and off orremain off.
Windshield Wipers
If the wiper motor overheats due toheavy snow or ice, the windshieldwipers will stop until the motor coolsand will then restart.
Although the circuit is protectedfrom electrical overload, overloaddue to heavy snow or ice maycause wiper linkage damage.Always clear ice and heavy snowfrom the windshield before using thewindshield wipers.
If the overload is caused by anelectrical problem and not snow orice, be sure to get it fixed.
Fuses
The wiring circuits in the vehicle areprotected from short circuits byfuses. This greatly reduces thechance of fires caused by electricalproblems.
Look at the silver-colored bandinside the fuse. If the band is brokenor melted, replace the fuse. Be sureyou replace a bad fuse with a newone of the identical size and rating.
Fuses of the same amperage canbe temporarily borrowed fromanother fuse location, if a fuse goesout. Replace the fuse as soon asyou can.
Engine Compartment
Fuse Block
If the vehicle has a diesel engine,see the Duramax dieselsupplement.
The engine compartment fuse blockis in the engine compartment, onthe driver side of the vehicle.
Lift the cover to access the fuseblock.
Caution
Spilling liquid on any electrical
component on the vehicle may
damage it. Always keep the
covers on any electrical
component.
Afusepullerisavailableintheleftinstrument panel fuse block.
The vehicle may not be equippedwith all of the fuses, relays, andfeatures shown.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Vehicle Care 433
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. If you have a vehicle with adiesel engine with twobatteries, you should knowbefore you begin that,especially in cold weather, you
may not be able to get enoughpower from a single battery inanother vehicle to start yourdiesel engine. If your vehiclehas more than one battery,using the battery that is closerto the starter will reduceelectrical resistance. This islocated on the passenger side,in the rear of the enginecompartment.
3. Get the vehicles close enoughso the jumper cables canreach, but be sure the vehiclesare not touching each other.If they are, it could cause anunwanted ground connection.Yo u w o u l d n o t b e a b l e t o s t a r tyour 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 the automatictransmission in P (Park) or amanual transmission in Neutralbefore setting the parkingbrake. If you have a
four-wheel-drive vehicle, besure the transfer case is in adrive gear, not in N (Neutral).
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.
4. Turn off the ignition on bothvehicles. Unplug unnecessaryaccessories plugged into theaccessory power outlets. Turnoff the radio and all the lampsthat are not needed. This willavoid sparks and help saveboth batteries. And it couldsave the radio!
5. Open the hood on the othervehicle and locate thepositive (+) and negative (✓)terminal locations on thatvehicle.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
434 Vehicle Care
The positive (+) terminal isunder a red plastic cover at thepositive battery post. Touncover the positive (+)terminal, open the red plasticcover.
For more information on thelocation of the remotepositive (+) and remotenegative (✓)terminals,seeEngine CompartmentOverview0354.
{Warning
An electric fan can start up even
when the engine is not running
and can injure you. Keep hands,
clothing, and tools away from any
underhood electric fan.
{Warning
Using a match near a battery can
cause battery gas to explode.
People have been hurt doing this,
(Continued)
Warning (Continued)
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
your eyes or on your skin, flush
the place with water and get
medical help immediately.
{Warning
Fans or other moving engine
parts can injure you badly. Keep
your hands away from moving
parts once the engine is running.
6. Check that the jumper cablesdo not have loose or missinginsulation. If they do, you couldget a shock. The vehiclescould be damaged too.
Before you connect the cables,here are some basic things youshould know. Positive (+) willgo to positive (+) or to a remotepositive (+) terminal if thevehicle has one. Negative (✓)will go to a heavy, unpaintedmetal engine part or to aremote negative (✓)terminalifthe vehicle has one.
Do not connect positive (+) tonegative (✓)oryouwillgetashort that would damage thebattery and maybe other partstoo. And do not connect thenegative (✓)cabletothenegative (✓)terminalonthedead battery because this cancause sparks.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
438 Vehicle Care
{Warning
Shifting a four-wheel-drive
vehicle's transfer case into
N(Neutral)cancausethevehicle
to roll even if the transmission is
in P (Park). You or others could
be injured. Set the parking brake
before shifting the transfer case
to N (Neutral).
To d i n g h y t o w :
1. Position the vehicle beingtowed behind the tow vehicle,facing forward and on a levelsurface.
2. Securely attach the vehiclebeing towed to the tow vehicle.
3. Apply the parking brake andstart the engine.
4. Shift the transfer case toN(Neutral). See“Shifting intoN(Neutral)”underFour-WheelDrive0284.Checkthatthevehicle is in N (Neutral) byshifting the transmission toR(Reverse)andthentoD
(Drive). There should be nomovement of the vehicle whileshifting.
5. Turn the engine off.
Caution
Failure to disconnect the negative
battery cable or to have it contact
the terminals can cause damage
to the vehicle.
6. Disconnect the negativebattery cable at the battery andsecure the nut and bolt. Coverthe negative battery post with anon-conductive material toprevent any contact with thenegative battery terminal.
7. Shift the transmission toP(Park).
Caution
If the steering column is locked,
vehicle damage may occur.
8. Move the steering wheel tomake sure the steering columnis unlocked.
9. With a foot on the brake pedal,release the parking brake.Keep the ignition key in thetowed vehicle in ACC/ACCESSORY to prevent thesteering column from locking.
Disconnecting the Towed Vehicle
Before disconnecting the towedvehicle:
1. Park on a level surface.
2. Set the parking brake, thenshift the transmission toP(Park),andmovetheignitionkey to OFF.
3. Connect the battery.
4. Apply the brake pedal.
5. Turn the ignition on with theengine off. Shift the transfercase out of N (Neutral) toTw o - W h e e l D r i v e H i g h . S e e“Shifting out of N (Neutral)”underFour-Wheel Drive0284.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Vehicle Care 445
Caution (Continued)
or tires. When applying a tire
dressing, always wipe off any
overspray from all painted
surfaces on the vehicle.
Wheels and Trim—Aluminum
or Chrome
Use a soft, clean cloth with mildsoap and water to clean the wheels.After rinsing thoroughly with cleanwater, dry with a soft, clean towel.Awaxmaythenbeapplied.
Caution
Chrome wheels and other chrome
trim may be damaged if the
vehicle is not washed after driving
on roads that have been sprayed
with magnesium, calcium,
or sodium chloride. These
chlorides are used on roads for
conditions such as ice and dust.
Always wash the chrome with
soap and water after exposure.
Caution
To a v o i d s u r f a c e d a m a g e , d o n o t
use strong soaps, chemicals,
abrasive polishes, cleaners,
brushes, or cleaners that contain
acid on aluminum or
chrome-plated wheels. Use only
approved cleaners. Also, never
drive a vehicle with aluminum or
chrome-plated wheels through an
automatic car wash that uses
silicone carbide tire cleaning
brushes. Damage could occur
and the repairs would not be
covered by the vehicle warranty.
Brake System
Visually inspect brake lines andhoses for proper hook-up, binding,leaks, cracks, chafing, etc. Inspectdisc brake pads for wear and rotorsfor surface condition. Inspect drumbrake linings/shoes for wear orcracks. Inspect all other brake parts.
Steering, Suspension, and
Chassis Components
Visually inspect steering,suspension, and chassiscomponents for damaged, loose,or missing parts or signs of wear atleast once a year.
Inspect power steering for properattachment, connections, binding,leaks, cracks, chafing, etc.
Visually check constant velocity jointboots and axle seals for leaks.
1500 Series vehicles, at least everyother oil change lubricate the outertie rod ends.
2500/3500 Series vehicles, at leastevery other engine oil changelubricate the upper and lowercontrol arm ball joints. Control armball joints on 1500 series vehiclesare maintenance-free.
2500/3500 Series vehicles equippedwith steering linkage, at least everyother engine oil change lubricate thetie rod ball joints, idler arm pivotshaft bearings, idler arm socket, andpitman arm socket.