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the proper coolant mixture will. The coolant warning system is set for the proper coolant mixture. With plain water or the wrong mixture, the engine could get too hot but you would not get the overheat warning. The engine could catch fire and you or others could be burned. Use a 50/ 50 mixture of clean, drinkable water and DEX-COOL coolant.
Use a 50/50 mixture of clean, drinkable water and DEX-COOL coolant. If using this mixture, nothing else needs to be added. This mixture: . Gives freezing protection down
to −37 °C (−34 °F), outside temperature.
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. Gives boiling protection up to
129 °C (265 °F), engine temperature.
. Protects against rust and
corrosion.
. Will not damage aluminum parts. . Helps keep the proper engine
temperature.
Caution
If improper coolant mixture, inhibitors, or additives are used in the vehicle cooling system, the engine could overheat and be damaged. Too much water in the mixture can freeze and crack engine cooling parts. The repairs would not be covered by the vehicle warranty. Use only the proper mixture of engine coolant for the cooling system. See Recommended Fluids and Lubricants 0 354
ii
Never dispose of engine coolant by putting it in the trash, pouring it on the ground, or pouring it into
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sewers, streams or bodies of water. Have the coolant changed by an authorized service center, familiar with legal requirements regarding used coolant disposal. This will help protect the environment and your health. Checking Coolant The vehicle must be on a level surface when checking the coolant level. To check coolant: 1. Turn the ignition off. 2. Locate the coolant recovery
reservoir. See Engine Compartment Overview 0 270
ii
3. Turn the coolant recovery
reservoir dipstick cap counterclockwise and slowly pull out the dipstick. There are maximum and minimum markings on the dipstick.
4. When the engine is cold, the coolant level should be at or above the minimum mark (1). After the vehicle has been driven and the engine is at normal operating temperature, the level should be somewhere between half full and the maximum mark (2). If the coolant level is correct, replace the coolant recovery reservoir dipstick cap and turn clockwise to secure.
5.
Chevrolet SS Sedan Owner Manual (GMNA-Localizing-U.S.-9234782) - 2016 - CRC - 8/24/15
How to Add Coolant to the Coolant Recovery Bottle
{ Warning
You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Do not spill coolant on a hot engine.
Caution
This vehicle has a specific coolant fill procedure. Failure to follow this procedure could cause the engine to overheat and be severely damaged.
To add coolant: 1. Turn the engine coolant
recovery reservoir dipstick cap counterclockwise 1/8 of a turn and slowly pull out the dipstick.
2. Pour the coolant into the engine coolant recovery reservoir.
3. When the level is correct, as
per the markings on the dipstick, replace the coolant recovery reservoir dipstick cap and turn clockwise to secure.
How to Add Coolant to the Radiator
{ Warning
You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Do not spill coolant on a hot engine.
Caution
This vehicle has a specific coolant fill procedure. Failure to follow this procedure could cause the engine to overheat and be severely damaged.
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279
{ Warning
An electric engine cooling fan under the hood can start up even when the engine is not running and can cause injury. Keep hands, clothing, and tools away from any underhood electric fan.
{ Warning
Steam and scalding liquids from a hot cooling system can blow out and burn you badly. They are under pressure, and if you turn the radiator cap — even a little — they can come out at high speed. Never turn the cap when the cooling system, including the radiator cap, is hot. Wait for the cooling system and radiator cap to cool if you ever have to turn the pressure cap.
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Vehicle Care
If no coolant is visible in the engine coolant recovery reservoir, add coolant as follows: 1. Locate the radiator cap. See
Engine Compartment Overview 0 270
ii
2. Cover the radiator cap with a
3.
thick cloth and turn it slowly counterclockwise and remove. If there is no coolant visible or the level is low, slowly fill the system through the radiator cap opening with a 50/50 mixture of clean, drinkable water and DEX-COOL coolant until full. Wait 30 seconds for the coolant to settle and top off if the level drops. Do not spill coolant on the accessory drive belts.
If a spill occurs, rinse the belt with fresh water. 4. Start the engine. 5. With the engine idling, top off
the coolant through the radiator cap opening until full. Wait 30 seconds for the coolant to settle and top off if the level drops.
6. Once the system is full, put the radiator cap back on by turning clockwise.
7. Turn the engine off.
8. Check the coolant level in the
engine coolant recovery reservoir and fill it until the level is at the top mark on the dipstick cap. Filling to this level provides additional coolant to allow for any air that may be left in the cooling system.
Caution
If the pressure cap is not tightly installed, coolant loss and possible engine damage may occur. Be sure the cap is properly and tightly secured.
Engine Overheating The vehicle has an indicator to warn of engine overheating. There is an engine coolant temperature gauge on your vehicle's instrument panel. See Engine Coolant Temperature Gauge 0 95
ii
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You may decide not to lift the hood when this warning appears, but instead get service help right away. See Roadside Assistance Program 0 365
If you do decide to lift the hood, make sure the vehicle is parked on a level surface. Then check to see if the engine cooling fans are running. If the engine is overheating, both fans should be running. If they are not, do not continue to run the engine and have the vehicle serviced.Caution
Running the engine without coolant may cause damage or a fire. Vehicle damage would not be covered by the vehicle warranty.
If Steam is Coming from the Engine Compartment { Warning
Steam from an overheated engine can burn you badly, even if you just open the hood. Stay away from the engine if you see or hear steam coming from it. Just turn it off and get everyone away from the vehicle until it cools down. Wait until there is no sign of steam or coolant before you open the hood. If you keep driving when the engine is overheated, the liquids in it can catch fire. You or others could be badly burned. Stop the engine if it overheats, and get out of the vehicle until the engine is cool.
If No Steam is Coming from the Engine Compartment If an engine overheat warning is displayed but no steam can be seen or heard, the problem may not be
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281
too serious. Sometimes the engine can get a little too hot when the vehicle: . Climbs a long hill on a hot day. . Stops after high-speed driving. Idles for long periods in traffic.
If the overheat warning is displayed with no sign of steam: 1. Turn the air conditioning off. 2. Turn the heater on to the
highest temperature and to the highest fan speed. Open the windows as necessary.
3. When it is safe to do so, pull off
the road, shift to P (Park) or N (Neutral), and let the engine idle.
If the temperature overheat gauge is no longer in the overheat zone or an overheat warning no longer displays, the vehicle can be driven. Continue to drive the vehicle slowly for about 10 minutes. Keep a safe vehicle distance from the vehicle in front. If the warning does not come
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back on, continue to drive normally and have the cooling system checked for proper fill and function. If the warning continues, pull over, stop, and park the vehicle right away. If there is no sign of steam, idle the engine for three minutes while parked. If the warning is still displayed, turn off the engine until it cools down.
Washer Fluid
What to Use When windshield washer fluid is needed, be sure to read the manufacturer's instructions before use. If operating the vehicle in an area where the temperature may fall below freezing, use a fluid that has sufficient protection against freezing.
Adding Washer Fluid
Open the cap with the washer symbol on it. Add washer fluid until the windshield washer fluid reservoir is full. See Engine Compartment Overview 0 270
location.for reservoir
ii
Caution
. Do not use washer fluid that
contains any type of water repellent coating. This can cause the wiper blades to chatter or skip.
. Do not use engine coolant
(antifreeze) in the windshield washer. It can damage the windshield washer system and paint.
(Continued)
Caution (Continued)
. Do not mix water with
ready-to-use washer fluid. Water can cause the solution to freeze and damage the washer fluid tank and other parts of the washer system.
. When using concentrated
washer fluid, follow the manufacturer instructions for adding water.
. Fill the washer fluid tank
only three-quarters full when it is very cold. This allows for fluid expansion if freezing occurs, which could damage the tank if it is completely full.
Brakes Disc brake pads have built-in wear indicators that make a high-pitched warning sound when the brake pads are worn and new pads are needed. The sound can come and go or can
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evenly tighten wheel nuts in the proper sequence to torque specifications. See Capacities and Specifications 0 358
Brake pads should be replaced as complete sets. Brake Pedal Travel See your dealer if the brake pedal does not return to normal height, or if there is a rapid increase in pedal travel. This could be a sign that brake service may be required. Replacing Brake System Parts Always replace brake system parts with new, approved replacement parts. If this is not done, the brakes may not work properly. The braking performance expected can change in many other ways if the wrong replacement brake parts are installed or if parts are improperly installed.be heard all the time when the vehicle is moving, except when applying the brake pedal firmly.
{ Warning
The brake wear warning sound means that soon the brakes will not work well. That could lead to a crash. When the brake wear warning sound is heard, have the vehicle serviced.
Caution
Continuing to drive with worn-out brake pads could result in costly brake repair.
Some driving conditions or climates can cause a brake squeal when the brakes are first applied or lightly applied. This does not mean something is wrong with the brakes. Properly torqued wheel nuts are necessary to help prevent brake pulsation. When tires are rotated, inspect brake pads for wear and
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283
Brake Fluid
The brake/clutch master cylinder reservoir is filled with GM approved DOT 4 brake fluid as indicated on the reservoir cap. See Engine Compartment Overview 0 270
the location of the reservoir.for
ii
Checking Brake Fluid With the vehicle in P (Park) on a level surface, the brake fluid level should be between the minimum and maximum marks on the brake fluid reservoir. There are only two reasons why the brake fluid level in the reservoir may go down: . Normal brake lining wear. When
new linings are installed, the fluid level goes back up.
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. A fluid leak in the brake/clutch
hydraulic system. Have the brake/clutch hydraulic system fixed. With a leak, the brakes will not work well.
Always clean the brake fluid reservoir cap and the area around the cap before removing it. Do not top off the brake/clutch fluid. Adding fluid does not correct a leak. If fluid is added when the linings are worn, there will be too much fluid when new brake linings are installed. Add or remove fluid, as necessary, only when work is done on the brake/clutch hydraulic system.
{ Warning
If too much brake fluid is added, it can spill on the engine and burn, if the engine is hot enough. You or others could be burned, and the vehicle could be damaged. Add brake fluid only when work is done on the brake/clutch hydraulic system.
When the brake/clutch fluid falls to a low level, the brake warning light comes on. See Brake System Warning Light 0 99
Brake fluid absorbs water over time which degrades the effectiveness of the brake fluid. Replace brake fluid at the specified intervals to prevent increased stopping distance. See Maintenance Schedule 0 346ii
ii
What to Add Use only GM approved DOT 4
brake fluid from a clean, sealed container. See Recommended Fluids and Lubricants 0 354ii
{ 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 is maintenance free. Do not remove the cap and do not add fluid. The battery is in the trunk, behind a trim panel, on the driver side of the vehicle. Refer to the replacement number shown on the original battery label when a new battery is needed.
{ Warning
A specifically developed battery with a ventilation system is required for this vehicle. Any
(Continued)
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Warning (Continued)
other standard battery may cause explosive gases to enter the trunk or passenger compartment. Do not remove the caps on the top of the battery. The battery supplied in the vehicle is maintenance free and does not require checking or filling. The battery vent tube must be installed correctly to ensure the explosive gases are vented outside the vehicle. Only use a manufacturer recommended battery as a replacement.
{ Warning WARNING: 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. See California Proposition 65 Warning 0 267
ii
Vehicle Storage
{ Warning
Batteries have acid that can burn you and gas that can explode. You can be badly hurt if you are not careful. See Jump Starting - for tips on North America 0 331
working around a battery without getting hurt.ii
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285
Infrequent Usage: Remove the black, negative (−) cable from the battery to keep the battery from running down. Extended Storage: Remove the black, negative (−) cable from the battery or use a battery trickle charger.
Rear Axle
When to Check Lubricant It is not necessary to regularly check rear axle fluid unless you suspect there is a leak or you hear an unusual noise. A fluid loss could indicate a problem. Have it inspected and repaired.
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How to Check Lubricant
1. Fill Plug Hole 2. Drain Plug Hole
To get an accurate reading, the vehicle should be on a level surface. If the level is below the bottom of the filler plug hole, add some lubricant. Add enough lubricant to raise the level to the bottom of the filler plug hole.
What to Use To add lubricant when the level is low or to completely refill after draining, see Recommended Fluids . Then fill to and Lubricants 0 354
the bottom of the fill plug hole with the required lubricant.ii
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, be
sure there is enough room around the vehicle.
2. Apply both the parking brake
and the regular brake. Do not use the accelerator pedal, and be ready to turn off the engine immediately if it starts.
3. Try to start the engine in each gear. The vehicle should start only in P (Park) or N (Neutral). If the vehicle starts in any other position, 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, be
sure there is enough room around the vehicle. It should be parked on a level surface.
2. Apply the parking brake. Be
ready to apply the regular brake immediately if the vehicle begins to move.
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3. With the engine off, turn the
. To check the parking brake's
ignition on, but do not start the engine. Without applying the regular brake, try to move the shift lever out of P (Park) with normal effort. If the shift lever moves out of P (Park), contact your dealer for service.
Park Brake and P (Park) Mechanism Check { Warning
When you are doing this check, the vehicle could begin to move. You or others could be injured 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 the vehicle facing downhill. Keeping your foot on the regular brake, set the parking brake.
holding ability: With the engine running and the transmission in N (Neutral), slowly remove foot pressure from the regular brake pedal. Do this until the vehicle is held by the parking brake only.
. To check the P (Park)
mechanism's holding ability: With the engine running, shift to P (Park). Then release the parking brake followed by the regular brake.
Contact your dealer if service is required.
Wiper Blade Replacement
Front Wiper Blade Windshield wiper blades should be inspected for wear or cracking. See Maintenance Schedule 0 346
Replacement blades come in different types and are removed in different ways. For the proper type and size, see Maintenance Replacement Parts 0 355ii
ii
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287
To replace the wiper blade assembly: 1. Pull the windshield wiper assembly away from the windshield.
2. Squeeze the tabs on each side
of the wiper blade assembly and slide the assembly off the end of the wiper arm.
3.
Install the new blade onto the arm connector and make sure the tabs are fully set in the locked position.
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Allowing the wiper blade arm to touch the windshield when no wiper blade is installed could damage the windshield. Any damage that occurs would not be covered by your warranty. Do not allow the wiper blade arm to touch the windshield.
4. Repeat the steps for the other
blade.
Windshield Replacement
HUD System The windshield is part of the HUD system. If the windshield must be replaced, get one that is designed for HUD or the HUD image may look out of focus.
Driver Assistance Systems When a windshield replacement is needed and the vehicle is equipped with a front-looking camera sensor for the Driver Assistance Systems, the windshield must be installed according to GM specifications for these systems to work properly. If it is not, there may be unexpected behavior and/or messages from these systems. See Object Detection System Messages 0 113
ii
Headlamp Aiming Headlamp aim has been preset and should need no further adjustment. If the vehicle is damaged in a crash, the headlamp aim may be affected. If adjustment to the headlamps is necessary, see your dealer.
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Bulb Replacement For the proper type of replacement bulbs, see Replacement Bulbs 0 290
For any bulb changing procedure not listed in this section, see your dealer. A tool is included with the vehicle to assist with bulb replacement by your dealer.High Intensity Discharge (HID) Lighting
License Plate Lamp
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289
{ Warning
The high intensity discharge lighting system operates at a very high voltage. If you try to service any of the system components, you could be seriously injured. Have your dealer or a qualified technician service them.
After an HID headlamp bulb has been replaced, the beam might be a slightly different shade than it was originally. This is normal.
Lamp Assembly
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Vehicle Care
5. Push the replacement bulb straight into the bulb socket and turn the bulb socket clockwise to install it into the lamp assembly.
6. Turn the lamp assembly into the lamp assembly opening engaging the clip side first.
7. Push on the lamp side opposite the clip until the lamp assembly snaps into place.
Replacement Bulbs
Exterior Lamp
License Plate Lamp
Bulb
Number
W5W
For replacement bulbs not listed here, contact your dealer.
Electrical System
Electrical System Overload The vehicle has fuses and circuit breakers to protect against an electrical system overload. When the current electrical load is too heavy, the circuit breaker opens and closes, protecting the circuit until the current load returns to normal or the problem is fixed. This greatly reduces the chance of circuit overload and fire caused by electrical problems. Fuses and circuit breakers protect power devices in the vehicle. Replace a bad fuse with a new one of the identical size and rating. If there is a problem on the road and a fuse needs to be replaced, the same amperage fuse can be borrowed. Choose some feature of the vehicle that is not needed to use and replace it as soon as possible.
Bulb Assembly
1. Bulb Socket 2. Bulb 3. Lamp Assembly
To replace one of these bulbs: 1. Push the left end of the lamp
assembly toward the right.
2. Turn the lamp assembly down
to remove it.
3. Turn the bulb socket (1)
counterclockwise to remove it from the lamp assembly (3).
4. Pull the bulb (2) straight out of
the bulb socket (1).
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Headlamp Wiring An electrical overload may cause the lamps to go on and off, or in some cases to remain off. Have the headlamp wiring checked right away if the lamps go on and off or remain off. Windshield Wipers If the wiper motor overheats due to heavy snow or ice, the windshield wipers will stop until the motor cools and will then restart. Although the circuit is protected from electrical overload, overload due to heavy snow or ice may cause wiper linkage damage. Always clear ice and heavy snow from the windshield before using the windshield wipers. If the overload is caused by an electrical problem and not snow or ice, be sure to get it fixed.
Fuses The wiring circuits in the vehicle are protected from short circuits by fuses. This greatly reduces the chance of fires caused by electrical problems. Look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure you replace a bad fuse with a new one of the identical size and rating. Fuses of the same amperage can be temporarily borrowed from another fuse location, if a fuse goes out. Replace the fuse as soon as you can. Spare fuses of various ratings are provided in the Engine Compartment Fuse Block and Rear Compartment Fuse Block.
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291
Engine Compartment Fuse Block
To access the fuse block, remove the clip-on cover. Ensure the cover is replaced securely.
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Vehicle Care
The vehicle may not be equipped with all of the fuses, relays and features shown.
Fuses
F1
F2Usage Heated Mirrors Not Used
Fuses
F3
F4
F5
F6
F7
F8F9
F10
F11
F12
F13
F14
F15
F16
F17
F18
F19
F20Usage Rear Defogger Not Used Spot Lamp Right Driver Power Seat Washer Pump Passenger Power Seat EMER/VEH/FT/LP Not Used Driving Lamps Headlamp Washer Spot Lamp Left ABS Pump ABS Valves Not Used Not Used Heated Front Seats Not Used Not Used
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Fuses
Usage
Fuses
Usage
Fuses
Usage
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293
F21
F22
F23
F24
F25F26
F27
F28F29
F30
F31
F32
F33
F34F35
Front Passenger Window Switch Rear Wiper Sunroof Front Wipers Automatic Occupant Sensing/Instrument Cluster Ignition LRBEC Ignition Not Used Ignition/Injectors Even-V8
Engine Control Module-V8, Ignition Odd-V6/EMIS Not Used Not Used Not Used Ignition-IP/BODY Fuel System Control Module Ignition Not UsedF36
F37F38
F39
F40
F41F42
F43
F44
F45
F46F47
F48
F49ESCL EMIS 2/Ignition Even-V6
Engine Control Module-V6, Injectors/ Ignition Odd-V8
INCLR Pump Not Used Transmission Control Module/Electric Power Steering Starter Motor Not Used Left HID Headlamp Right HID Headlamp Left and Right High-Beam Headlamp Horn Engine Cooling Fan Automatic Headlamp LevelingF50
F51
F52
F53F54
Transmission Control Module Ignition Engine Control Module Ignition Brake Vacuum Pump Air Conditioning Compressor Clutch Vaporizer Control Module
Relays
Relays
R1
R2
R3
R4
R5
R6
R7
R8R9
Usage Driving Lamps Headlamp Washer Rear Washer Pump Front Washer Pump Rear Defogger Front Wiper Control Wiper Speed Engine Control Module Not Used
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Vehicle Care
Relays
Usage
R10
R11
R12
R13
R14R15
R16
R17
R18
R19R20
INCLR Pump Not Used Rear Wiper Control Fog Lamps Low-Beam Headlamps High-Beam Headlamps Starter Run/Crank Brake Vacuum Pump Air Conditioning Control Horn
Relays R3, R4, R12, R13, and R20
are PCB mounted relays.Instrument Panel Fuse Block
Refitting the Fuse Panel Cover 1.
Insert the rear edge of the fuse panel cover under the door seal.
2. Locate the hooks on the cover into the end of the instrument panel.
3. Rotate and push the cover
back into position.
Removing the Fuse Panel Cover Insert a screwdriver in the slot indicated and remove the fuse panel cover.
Chevrolet SS Sedan Owner Manual (GMNA-Localizing-U.S.-9234782) - 2016 - CRC - 8/24/15
The vehicle may not be equipped with all of the fuses, relays and features shown.
Fuses
Fuses
F1
Usage
Body Control Module 1
Vehicle Care
295
Fuses
F2
F3
F4
F5
F6CB7
F8
F9
F10
F11
F12F13
F14
F15
F16Usage Diagnostic Link Connector LPG Shut-Off Solenoid Body Control Module 2
Ignition Switch Electric Steering Control Lock Not Used Not Used Not Used Not Used Shunt 1
Airbag/Automatic Occupant Sensing Instrument Cluster HVAC Control Module Rain Sensor Body Control Module 3Chevrolet SS Sedan Owner Manual (GMNA-Localizing-U.S.-9234782) - 2016 - CRC - 8/24/15
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Fuses
F17
F18
F19
F20
F21
F22
F23F24
F25
CB26
Usage LPG Shut-Off Solenoid Not Used SWC Backlight Not Used Not Used Shunt 2
Body Control Module 4
Body Control Module 5
Body Control Module 6
Not UsedFuses
Usage
F27
F28
F29
F30Body Control Module 8
Blower Fan Accessories Body Control Module 7Relays
Relays
R1
R2R3
Usage
Logistics LPG Shut-Off Solenoid 1
LPG Shut-Off Solenoid 2Rear Compartment Fuse Block The fuse panel is on the left side of the trunk, above the battery.
. Turn the latch counterclockwise
to remove the cover.
. Replace the cover and turn the
latch clockwise to secure.
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Fuses
Usage
F2
F3
F4F5
F6
F7
F8F9
F10F11
F12
F13
F14F15
F16
F17EMER/VEH/ACCY Trunk Release Passive Entry Passive Start-BATT 2
Radio Not Used Not Used Fuel System Control Module MRTD Decklid Flashing Lamps/EDI Module Auxiliary Battery Not Used Not Used Rear Seat Entertainment Automatic Headlamp Leveling Not Used Exhaust ValveThe vehicle may not be equipped with all of the fuses, relays and features shown.
Fuses
Fuses
F1
Usage
Driver Front/Left Rear Window
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Vehicle Care
Fuses
Usage
Fuses
Usage
Relays
Usage
R6
R7
R8
R9
R10
R11Retained Accessory Power Logistics Not Used Not Used Exhaust Valve Not Used
Relays R1, R2, R3, and R5 are PCB mounted relays.
F18
F19F20
F21
F22
F23
F24F25
F26
F27
F28F29
F30F31
OnStar Mirror/Window Module Canister Vent Solenoid Passive Entry Passive Start-BATT 1
Memory Seat Module Amplifier Passenger Front/ Right Rear Window Electric Parking Brake Tailgate Module Camera Ignition Front Vent Seat Ignition Trailer Module Ignition Automatic Parking Assist/Side Blind Zone Alert Engine Control ModuleF32
F33F34
F35
F36F37
F38
F39
F40Auxiliary Gauges Retained Accessory Power Battery Voltage Sensing Tailgate Motor Rear Accessory Power Outlet Interior Accessory Power Outlet Cigar Lighter Not Used Trailer Module
Relays
Relays
R1
R2
R3
R4
R5Usage Trunk Release Accessory Not Used Run Not Used
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Wheels and Tires
Tires Every new GM vehicle has high-quality tires made by a leading tire manufacturer. See the warranty manual for information regarding the tire warranty and where to get service. For additional information refer to the tire manufacturer.
{ Warning
. Poorly maintained and
improperly used tires are dangerous.
. Overloading the tires can
cause overheating as a result of too much flexing. There could be a blowout and a serious crash. See Vehicle Load Limits 0 223
ii
(Continued)
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299
Warning (Continued)
Warning (Continued)
. Underinflated tires pose
. Replace any tires that
the same danger as overloaded tires. The resulting crash could cause serious injury. Check all tires frequently to maintain the recommended pressure. Tire pressure should be checked when the tires are cold.
. Overinflated tires are more likely to be cut, punctured, or broken by a sudden impact — such as when hitting a pothole. Keep tires at the recommended pressure.
. Worn or old tires can cause a crash. If the tread is badly worn, replace them.
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have been damaged by impacts with potholes, curbs, etc. Improperly repaired tires can cause a crash. Only the dealer or an authorized tire service center should repair, replace, dismount, and mount the tires.
. Do not spin the tires in
excess of 56 km/h (35 mph) on slippery surfaces such as snow, mud, ice, etc. Excessive spinning may cause the tires to explode.
Winter Tires This vehicle was not originally equipped with winter tires. Winter tires are designed for increased traction on snow and ice-covered
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roads. Consider installing winter tires on the vehicle if frequent driving on ice or snow covered roads is expected. See your dealer for details regarding winter tire availability and proper tire selection. Also, see Buying New Tires 0 313
With winter tires, there may be decreased dry road traction, increased road noise, and shorter tread life. After changing to winter tires, be alert for changes in vehicle handling and braking. If using winter tires: . Use tires of the same brand andii
tread type on all four wheel positions.
. Use only radial ply tires of the
same size, load range, and speed rating as the original equipment tires.
Winter tires with the same speed rating as the original equipment tires may not be available for H, V, W, Y, and ZR speed rated tires. If winter tires with a lower speed rating are chosen, never exceed the tire's maximum speed capability.
Low-Profile Tires
Caution
Low-profile tires are more susceptible to damage from road hazards or curb impact than standard profile tires. Tire and/or wheel assembly damage can occur when coming into contact with road hazards like potholes, or sharp edged objects, or when sliding into a curb. The warranty does not cover this type of damage. Keep tires set to the correct inflation pressure and when possible, avoid contact with curbs, potholes, and other road hazards.
Summer Tires
Ultra High Performance Summer Tires This vehicle may come with 245/40R19 and 275/35R19 ultra high performance summer tires. These tires have a special tread and compound that are optimized for
maximum dry and wet road performance. This special tread and compound will have decreased performance in cold climates, and on ice and snow. Driving a vehicle with ultra high performance summer tires when temperatures are below approximately 5 °C (40 °F) is not recommended. If driving in these conditions, winter tires should be installed. See Winter Tires 0 299
ii
Caution
Ultra high performance summer tires have rubber compounds that lose flexibility and may develop surface cracks in the tread area at temperatures below -7 °C (20 °F). Always store ultra high performance summer tires indoors and at temperatures above -7 °C (20 °F) when not in use. If the tires have been subjected to -7 °C (20 °F) or less, let them warm up in a heated space to at least 5 °C (40 °F) for 24 hours or more before being
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installed or driving a vehicle on which they are installed. Do not apply heat or blow heated air directly on the tires. Always inspect tires before use. See Tire Inspection 0 311
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Tire Sidewall Labeling Useful information about a tire is molded into its sidewall. The examples show a typical passenger tire sidewall.
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GM's TPC specifications meet or exceed all federal safety guidelines. (3) DOT (Department of Transportation) : The Department of Transportation (DOT) code indicates that the tire is in compliance with the U.S. Department of Transportation Motor Vehicle Safety Standards. DOT Tire Date of Manufacture : The last four digits of the TIN indicate the tire manufactured date. The first two digits represent the week (01-52) and the last two digits, the year. For example, the third week of the year 2010 would have a four-digit DOT date of 0310. (4) Tire Identification Number (TIN) : The letters and numbers following the DOT code are the Tire Identification Number (TIN). The TIN shows the manufacturer and plant code,
Passenger (P-Metric) Tire Example (1) Tire Size : The tire size is a combination of letters and numbers used to define a particular tire's width, height, aspect ratio, construction type, and service description. See the “Tire Size” illustration later in this section for more detail. (2) TPC Spec (Tire Performance Criteria Specification) : Original equipment tires designed to GM's specific tire performance criteria have a TPC specification code molded onto the sidewall.
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tire size, and date the tire was manufactured. The TIN is molded onto both sides of the tire, although only one side may have the date of manufacture. (5) Tire Ply Material : The type of cord and number of plies in the sidewall and under the tread. (6) Uniform Tire Quality Grading (UTQG) : Tire manufacturers are required to grade tires based on three performance factors: treadwear, traction, and temperature resistance. For more information see Uniform Tire Quality Grading 0 315
(7) Maximum Cold Inflation Load Limit : Maximum load that can be carried and the maximum pressure needed to support that load.ii
Tire Designations
Tire Size The following is an example of a typical passenger vehicle tire size.
(1) Passenger (P-Metric) Tire : The United States version of a metric tire sizing system. The letter P as the first character in the tire size means a passenger vehicle tire engineered to 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 : A two-digit number that indicates the tire height-to-width measurements. For example, if the tire size aspect ratio is 60, as shown in item 3 of the illustration, it would mean that the tire's sidewall is 60 percent as high as it is wide. (4) Construction Code : A letter 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) Service Description : These characters represent the load index and speed rating of the tire. The load index represents the load carrying capacity a tire is certified to carry. The speed rating is the maximum speed a tire is certified to carry a load.
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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. Belt : A rubber coated layer of cords between the plies and the tread. Cords may be made from steel or other reinforcing materials.
Bead : The tire bead contains steel wires wrapped by steel cords that hold the tire onto the rim. Bias Ply Tire : A pneumatic tire in which the plies are laid at alternate angles less than 90 degrees to the centerline of the tread. Cold Tire Pressure : The amount of air pressure in a tire, measured in kPa (kilopascal) or psi (pounds per square inch) before a tire has built up heat from driving. See Tire Pressure 0 305
Curb Weight : The weight of a motor vehicle with standard and optional equipment including the maximum capacity of fuel, oil, and coolant, but without passengers and cargo. DOT Markings : A code molded into the sidewall of a tire signifying that the tire is in compliance with the U.S.ii
ii
Department of Transportation (DOT) Motor Vehicle Safety Standards. The DOT code includes the Tire Identification Number (TIN), an alphanumeric designator which can also identify the tire manufacturer, production plant, brand, and date of production. GVWR : Gross Vehicle Weight Rating. See Vehicle Load Limits 0 223
GAWR FRT : Gross Axle Weight Rating for the front axle. See Vehicle Load Limits 0 223
GAWR RR : Gross Axle Weight Rating for the rear axle. See Vehicle Load Limits 0 223
Intended Outboard Sidewall : The side of an asymmetrical tire that must always face outward when mounted on a vehicle. Kilopascal (kPa) : The metric unit for air pressure.ii
ii
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Light Truck (LT-Metric) Tire : A tire used on light duty trucks and some multipurpose passenger vehicles. Load Index : An assigned number ranging from 1 to 279
that corresponds to the load carrying capacity of a tire. Maximum Inflation Pressure : The maximum air pressure to which a cold tire can be inflated. The maximum air pressure is molded onto the sidewall. Maximum Load Rating : The load rating for a tire at the maximum permissible inflation pressure for that tire. Maximum Loaded Vehicle Weight : The sum of curb weight, accessory weight, vehicle capacity weight, and production options weight.ii
Normal Occupant Weight : The number of occupants a vehicle is designed to seat multiplied by 68 kg (150 lb). See Vehicle Load Limits 0 223
Occupant Distribution : Designated seating positions. Outward Facing Sidewall : The side of an asymmetrical tire that has a particular side that faces outward when mounted on a vehicle. The side of the tire that contains a whitewall, bears white lettering, or bears manufacturer, brand, and/or model name molding that is higher or deeper than the same moldings on the other sidewall of the tire. Passenger (P-Metric) Tire : A tire used on passenger cars and some light duty trucks and multipurpose vehicles.ii
ii
Recommended Inflation Pressure : Vehicle manufacturer's recommended tire inflation pressure as shown on the tire placard. See Tire and Vehicle Pressure 0 305
Load Limits 0 223
Radial Ply Tire : A pneumatic tire in which the ply cords that extend to the beads are laid at 90 degrees to the centerline of the tread. Rim : A metal support for a tire and upon which the tire beads are seated. Sidewall : The portion of a tire between the tread and the bead. Speed Rating : An alphanumeric code assigned to a tire indicating the maximum speed at which a tire can operate. Traction : The friction between the tire and the road surface. The amount of grip provided.Chevrolet SS Sedan Owner Manual (GMNA-Localizing-U.S.-9234782) - 2016 - CRC - 8/24/15
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Tread : The portion of a tire that comes into contact with the road. Treadwear Indicators : Narrow bands, sometimes called wear bars, that show across the tread of a tire when only 1.6 mm (1/16 in) of tread remains. See When It Is Time for New Tires 0 312
UTQGS (Uniform Tire Quality Grading Standards) : A tire information system that provides consumers with ratings for a tire's traction, temperature, and treadwear. Ratings are determined by tire manufacturers using government testing procedures. The ratings are molded into the sidewall of the tire. See Uniform Tire Quality Grading 0 315ii
ii
Vehicle Capacity Weight : The number of designated seating positions multiplied by 68 kg (150 lb) plus the rated cargo load. See Vehicle Load Limits 0 223
Vehicle Maximum Load on the Tire : Load on an individual tire due to curb weight, accessory weight, occupant weight, and cargo weight. Vehicle Placard : A label permanently attached to a vehicle showing the vehicle capacity weight and the original equipment tire size and recommended inflation pressure. See “Tire and Loading Information Label” under Vehicle Load Limits 0 223ii
Tire Pressure Tires need the correct amount of air pressure to operate effectively.
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Caution
Neither tire underinflation nor overinflation is good. Underinflated tires, or tires that do not have enough air, can result in:
. Tire overloading and
overheating which could lead to a blowout.
. Premature or irregular wear. . Poor handling. . Reduced fuel economy. Overinflated tires, or tires that have too much air, can result in:
. Unusual wear. . Poor handling. . Rough ride. . Needless damage from
road hazards.
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The Tire and Loading Information label on the vehicle indicates the original equipment tires and the correct cold tire inflation pressures. The recommended pressure is the minimum air pressure needed to support the vehicle's maximum load carrying capacity. See Vehicle Load Limits 0 223
How the vehicle is loaded affects vehicle handling and ride comfort. Never load the vehicle with more weight than it was designed to carry.ii
When to Check Check the tires once a month or more.
How to Check Use a good quality pocket-type gauge to check the tire pressure. Proper tire inflation cannot be determined by looking at the tire. Check the tire inflation pressure when the tires are cold, meaning the vehicle
has not been driven for at least three hours or no more than 1.6 km (1 mi). Remove the valve cap from the
