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What to Use
{ Warning
Adding only plain water or some other liquid to the cooling system can be dangerous. Plain water and other liquids, can boil before 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
(Continued)
The coolant reservoir pressure cap can be removed when the cooling system, including the pressure cap, is no longer hot. 1. Turn the pressure cap counterclockwise and remove it.
2. Fill the coolant reservoir with the proper mixture to the cold fill line on the side of the reservoir.
3. Reinstall the pressure cap
tightly.
Check the level in the coolant reservoir when the cooling system has cooled down. If the coolant is not at the proper level, repeat Steps 1 and 2, then reinstall the pressure cap. If the coolant still is not at the proper level when the system cools down again, see your dealer.
Check to see if coolant is visible in the reservoir. If coolant is visible but the coolant level is below the cold fill line, there could be a leak in the cooling system. How to Add Coolant to the Coolant Reservoir If no problem is found, add the proper DEX-COOL coolant mixture at the coolant reservoir.
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Warning (Continued)
Caution
overheat warning. The engine could catch fire and you or others could be burned. Use a 50/ 50 mixture of deionized water and DEX-COOL coolant.
Use a 50/50 mixture of deionized 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.
. 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.
If improper coolant mixture, inhibitors, or additives are used in the vehicle cooling system, the engine could overheat and be damaged. Too much deionized water or clean drinkable water 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 0 327.
Never dispose of engine coolant by putting it in the trash, pouring it on the ground, or into 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.
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Checking Coolant The vehicle must be on a level surface when checking the coolant level. Check to see if coolant is visible in the coolant surge tank. If the coolant inside the coolant surge tank is boiling, do not do anything else until it cools down. If coolant is visible but the coolant level is not at or above the cold fill mark, add a 50/ 50 mixture of deionized water and DEX-COOL coolant at the coolant surge tank, but be sure the cooling system is cool before this is done. See Engine Overheating 0 253
The coolant reservoir is located on the passenger side of the engine compartment. See Engine Compartment Overview 0 242. The coolant level should be at or above the cold fill line on the coolant surge tank. If it is not, there could be a leak in the cooling system.Cadillac ELR Owner Manual 2016 - crc - 9/17/15
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How to Add Coolant to the Coolant Surge Tank
{ 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.
{ Warning
Warning (Continued)
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 surge tank pressure cap — even a little — they can come out at high speed. Never turn the cap when the cooling system, including the surge tank pressure cap, is hot. Wait for the cooling system and surge tank pressure cap to cool if you ever have to turn the pressure cap.
The electric fans under the hood can start up even when the engine is not running and can
If coolant is needed, add the proper DEX-COOL coolant mixture at the coolant surge tank.
(Continued)
The coolant surge tank pressure cap can be removed when the cooling system, including the surge tank pressure cap and upper radiator hose, is no longer hot. 1. Turn the pressure cap slowly counterclockwise. If a hiss is heard, wait for that to stop. A hiss means there is still some pressure left.
2. Keep turning the cap and
remove it.
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Engine Overheating The vehicle has an indicator to warn of engine overheating. If the decision is made not to lift the hood when this warning appears, get service help right away. See Roadside Service 0 336. If the decision is made 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, the fans should be running. If they are not, do not continue to run the vehicle 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.
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Washer Fluid
What to Use When adding windshield washer fluid to the vehicle, 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 tank is full. See Engine Compartment Overview 0 242 for reservoir location.
3. Fill the coolant surge tank with the proper mixture to the cold fill line.
4. Replace the pressure cap. Be
sure the pressure cap is hand-tight and fully seated.
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.
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Caution
Caution (Continued)
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.
. 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
(Continued)
freezing occurs, which could damage the tank if it is completely full.
Continuing to drive with worn-out brake pads could result in costly brake repair.
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 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.
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 evenly tighten wheel nuts in the proper sequence to torque specifications. See Capacities and Specifications 0 331. 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.
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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.
Brake Fluid
The brake master cylinder reservoir is filled with GM approved DOT 3
brake fluid as indicated on the reservoir cap. See Engine Compartment Overview 0 242 for the location of the reservoir.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. . A fluid leak in the brake
hydraulic system. Have the brake 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 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 hydraulic system.
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{ 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 hydraulic system.
When the brake fluid falls to a low level, the brake warning light comes on. See Brake System Warning Light 0 114. 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 0 318.
What to Add Use only GM approved DOT 3
brake fluid from a clean, sealed container. See Recommended Fluids and Lubricants 0 327.Cadillac ELR Owner Manual 2016 - crc - 9/17/15
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{ 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. This vehicle has a high voltage battery and a standard 12-volt battery.
High Voltage Battery If the vehicle is in a crash, the sensing system may shut down the high voltage system. When this occurs, the high voltage battery is disconnected and the vehicle will not start. The SERVICE VEHICLE SOON message in the Driver Information Center (DIC) will be displayed. Before the vehicle can be operated again, it must be serviced at your dealer. See “If a Crash Occurs” under Collision Damage Repair 0 340 and High Voltage Safety Information 0 21. If an airbag has inflated, see What Will You See after an Airbag Inflates? 0 69.
{ Warning
Damage to the high voltage battery or high voltage system can create a risk of electric shock, overheating, or fire.
(Continued)
Warning (Continued)
If the vehicle is damaged from a moderate to severe crash, flood, fire, or other event, the vehicle should be inspected as soon as possible. Until the vehicle has been inspected, store it outside at least 15 m (50 ft) from any structure or anything that can burn. Ventilate the vehicle by opening a window or a door. Contact Customer Assistance as soon as possible to determine whether an inspection is needed. See Customer Assistance Offices 0 335.
Only a trained service technician with the proper knowledge and tools should inspect, test, or replace the high voltage battery. See your dealer if the high voltage battery needs service. The dealer has information on how to recycle the high voltage battery. There is also information available at http:// www.recyclemybattery.com.
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Keep the vehicle plugged in, even when fully charged, to keep the high voltage battery temperature ready for the next drive. This is important when outside temperatures are extremely hot or cold. A vehicle cover, which can reduce sun loading on the vehicle and improve high voltage battery life, is available from your dealer.
12-Volt Battery The 12-volt battery is in the trunk, under the center compartment cover. Refer to the replacement number shown on the original battery label when a new 12-volt battery is needed. The vehicle has an Absorbed Glass Mat (AGM) 12-volt battery. Installation of a standard 12-volt battery will result in reduced 12-volt battery life. When using a 12-volt battery charger on the 12-volt AGM battery, some chargers have an AGM battery setting on the charger. If available, use the AGM setting on the charger, to limit charge voltage to 14.8 volts. Follow the charger manufacturer's instructions.
{ 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 0 236.
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 - North America 0 299 for tips on working around a battery without getting hurt.
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Up to four weeks . Plug in the high voltage battery charge cord if temperatures will exceed 35 °C (95 °F) and keep the 12-volt battery cables connected.
Four weeks to 12 months . Discharge the high voltage
battery until two or three bars remain on the battery range indicator (Battery symbol) on the instrument cluster.
. Do not plug in the high voltage
battery charge cord.
. Remove the black negative (−) cable from the 12-volt battery. Attach a trickle charger to the battery terminals or keep the 12-volt battery cables connected and trickle charge from the underhood remote positive (+) and negative (−) terminals. See Jump Starting - North America 0 299 for the location of these terminals.
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Caution
The vehicle is equipped with an AGM/VRLA 12-volt battery, which can be damaged by using the incorrect type of trickle charger. An AGM/VRLA-compatible charger must be used, with the appropriate setting selected. Follow the trickle charger manufacturer instructions.
After the battery cable is reconnected, it is possible that the vehicle may not operate in Electric Mode. If this happens, the high voltage battery may need to be charged.
Electric Drive Unit 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. Firmly apply the parking brake.
See Electric Parking Brake 0 195. Be ready to apply the regular brake immediately if the vehicle begins to move.
3. With the vehicle off and the
brake not applied, press and hold POWER O for more than five seconds to place the vehicle in Service Only Mode.
See Power Button 0 182. 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 Electric Parking Brake (EPB).
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Caution
Allowing the wiper arm to touch the windshield when no wiper blade is installed could damage 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 replace the windshield wiper blade: 1. Pull the windshield wiper assembly away from the windshield.
. To check the EPB's holding ability: With the propulsion system active and the electric drive unit in N (Neutral), slowly remove foot pressure from the regular brake pedal. Do this until the vehicle is held by the EPB only.
. To check the P (Park)
mechanism's holding ability: With the propulsion system active, shift to P (Park). Then release the EPB followed by the regular brake.
Contact your dealer if service is required.
Wiper Blade Replacement Windshield wiper blades should be inspected for wear and cracking. See the Maintenance Schedule 0 318. Replacement blades come in different types and are removed in different ways. For proper type and length, see Maintenance Replacement Parts 0 328.
2. Press the button in the middle
of the wiper arm connector, and pull the wiper blade away from the arm connector. 3. Remove the wiper blade. 4. Reverse Steps 1–3 for wiper
blade replacement.
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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.
Bulb Replacement For the proper type of replacement bulbs, see Replacement Bulbs 0 261. For any bulb-changing procedure not listed in this section, contact your dealer.
LED Lighting This vehicle has several LED lamps. For replacement of any LED lighting assembly, contact your dealer.
Back-Up Lamps
2. Back-Up Lamp Assembly
To replace one of these bulbs: 1. Reach under the rear fascia and locate the back-up lamp assembly.
2. Remove the bulb socket (1) by
turning counterclockwise and pulling straight out of the lamp assembly (2).
3. Pull the bulb out of the socket. Install the new bulb in the bulb 4. socket. Install the bulb socket by turning clockwise.
5.
1. Back-Up Bulb Socket
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Replacement Bulbs
Lamp
Back-Up Lamp License Plate Lamp
Bulb
Number
921 (W16W)
W5W LL
For replacement bulbs not listed here, contact your dealer.
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2. Bulb 3. Lamp Assembly
To replace one of these bulbs: 1. Push the lamp assembly (3)
toward the right.
2. Pull the lamp assembly down
to remove.
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).
5. Push the replacement bulb straight into the bulb socket and turn the bulb socket clockwise to install it into the lamp assembly.
6. Push the lamp assembly back
into position until the release tab locks into place.
License Plate Lamp
Lamp Assembly
Bulb Assembly
1. Bulb Socket
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Electrical System
High Voltage Devices and Wiring
{ Warning
Exposure to high voltage can cause shock, burns, and even death. The high voltage components in the vehicle can only be serviced by technicians with special training. High voltage components are identified by labels. Do not remove, open, take apart, or modify these components. High voltage cable or wiring has orange covering or labels. Do not probe, tamper with, cut, or modify high voltage cable or wiring.
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 the following in the vehicle: . Headlamp Wiring . Windshield Wiper Motor . Power Windows and other
Power Accessories
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. 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 the wiper control is turned off. After removal of the blockage, the wiper motor will restart when the control is then moved to the desired operating position. Although the circuit is protected from electrical overload, overload due to heavy snow or ice, may cause wiper 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.
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Engine Compartment Fuse Block
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To open the fuse block cover, press the clips at the front and back and rotate the cover up to the side.
Caution
Spilling liquid on any electrical component on the vehicle may damage it. Always keep the covers on any electrical component.
Engine Compartment Fuse Block
A fuse puller is in the engine compartment fuse block. The vehicle may not be equipped with all of the fuses, relays, and features shown.
Mini Fuses
Amps
Usage
15A
7.5A
–
Engine control module/ Switched power Emissions Empty
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Mini Fuses
Amps
Usage
Mini Fuses
Amps
Usage
Mini Fuses
Amps
Usage
6a 6b 10
11
12
1314
15A
10A
– – – –
Ignition coils/ Injectors Column lock Empty Empty Empty Empty
–
7.5A
7.5A Heated mirrors Air conditioning 5A control module Traction power control Empty Cabin heater pump and valve Power sounder/ Intrusion inclination
10A
–
15
15A
17
22
24
25
26
3132
5A
10A
– – – 5A
5A
33
10A
Traction power inverter module and transmission control module/ Battery Engine control module/Battery Left high-beam headlamp Empty Empty Empty Adaptive cruise control/Auto headlamp Run/Crank for vehicle integration module Run/Crank for heated steering wheel
34
10A
35
3637
38
–
10A
5A
10A
39
10A
40
10A
Vehicle integration control module/ Battery Empty Power electronics coolant pump Cabin heater control module Rechargeable energy storage system (high voltage battery) coolant pump Rechargeable energy storage system (high voltage battery) control module Front windshield washer pump
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Mini Fuses
Amps
Usage
Mini Fuses
Amps
Usage
J-Case Fuses
Amps
Usage
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41
46
47
49
5051
52
10A
– – –
10A
Right high-beam headlamp Empty Empty Empty Run/Crank/ Rear vision camera/ Accessory power module/ Tire pressure monitoring module
7.5A Run/Crank for
5A
ABS/Aero Shutter/VITM Engine control module/ Transmission control module/ Run/Crank
53
7.5A
Traction power inverter module/Run/ Crank
21
30A
54
7.5A Run/Crank/ Fuel system control module/ Air conditioning control module/ On board charger/ Instrument cluster/ Automatic occupant sensing/Mirrors
J-Case Fuses
Amps
Usage
16
1819
20
–
30A
30A
–
Empty Rear defogger/ Lower grid Front power window Empty
Antilock brake system electronic control unit Empty Empty Empty Front wipers Antilock brake system motor Right engine cooling fan Front wipers Charger Empty Left engine cooling fan 1
23
27
28
29
3042
43
44
45
48– – –
30A 60A
30A
30A 40A
–
30A
Mini Relays
Usage
Powertrain Heated mirrors/Rear defogger
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Mini Relays
Usage
11
12
13
14Empty Empty Empty Empty Empty Run/Crank
Micro Relays
Usage
10
Empty Empty Empty Empty Empty
Ultra Micro
Relays
Usage
Empty
Instrument Panel Fuse Block (Left Side)
The left instrument panel fuse block is on the left side end of the instrument panel, behind the end cap. To access the fuses, insert a plastic tool between the end panel and the instrument panel, and carefully release the end cap retaining clips. When all clips are released, remove the panel. To reinstall the door, insert the forward edge hook feature, and press around the edges of the end cap to reengage all of the clips.
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Fuses
F11
Amp 15A
Usage
Body control module 4
Empty Empty Empty Power outlet– – –
20A 5A Wireless charger Empty Empty
– –
F12
F13
F14
F15
F16F17
F18Usage
Relays
Usage
R1
R2
R3
R4Retained accessory power relay Empty Empty Empty
Diodes Diode
Empty
Usage
A fuse puller is in the engine compartment fuse block. The vehicle may not be equipped with all of the fuses, relays, and features shown.
Fuses
F1
F2
F3
Amp 20A
15A
10A
Usage
Power outlet/ Cigarette lighter Infotainment (HMI/CD) Instrument cluster
Fuses
F4
F5
F6
F7F8
F9F10
Amp 10A
10A
10A 15A
Infotainment display Heating/ Ventilation/Air conditioning Airbag Left data link connector Column lock
10A 10A OnStar (if equipped) Body control module 1
15A
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Instrument Panel Fuse Block (Right Side)
The right instrument panel fuse block is on the right side end of the instrument panel, behind the end cap. To access the fuses, insert a plastic tool between the end panel and the instrument panel, and carefully release the end cap retaining clips. When all clips are released, remove the panel. To reinstall the door, insert the forward edge hook feature, and press around the edges of the end cap to reengage all of the clips.
A fuse puller is in the engine compartment fuse block. The vehicle may not be equipped with all of the fuses, relays, and features shown.
Fuses
Amps
Usage
F1
F2
F3
F4
2A
10A
Steering wheel switch Auto headlamp leveling
10A Motorized cupholder Body control module 3
15A
Fuses
F5
F6
F7
F8
F9
F10Amps 7.5A
15A
7.5A
15A
–
15A
Usage
Body control module 2
Tilt/Telescoping column Body control module 6
Body control module 7
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Fuses
F11
Amps 7.5A Universal
Usage
Rear Compartment Fuse Block
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remote system/ Lane departure warning/Rain sensor Blower motor Empty Empty Empty
30A
– – –
10A Glove box
– –
Empty Empty
F12
F13
F14
F15
F16
F17
F18Relays
Usage
R1
R2
R3
R4Empty Glove box relay Empty Empty
Diodes DIODE
Empty
Usage
There are two rear compartment fuse blocks, located on the left side of the trunk behind a cover.
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The vehicle may not be equipped with all of the fuses, relays, and features shown.
Fuses
Amps
Usage
F1
F2F3
F4
–
15A
5A
15A
Empty Fuel system control module Passive entry/ Passive start 1
Heated seat 1Fuses
Amps
F5
F6
2A
10A
F7
15A
Usage Regulated voltage control Fuel/ Evaporative leak check module Accessory power module cooling fan
Fuses
F8
F9
F10Amps 30A
– 5A
F11
F12
F13F14
F15
F16
F17
F1815A
–
30A
30A
–
10A
– –
Usage
Amplifier Empty Side blind zone assist/ Front and rear parking assist Horn Empty Electric parking brake Rear defogger Empty Trunk release Empty Empty
Relays
R1
R2
R3
R4
R5Usage Rear defogger Trunk release Empty Empty Empty
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Relays
R6
R7/R8
Diodes DIODE
Usage
Usage
Empty Horn
Empty
Fuses
Amps
Usage
F1
F2
F3F4
F5F6
F7–
15A 10A
Empty Radio Pedestrian protection CDC
10A 10A Memory seat
module Empty
–
10A Mirror/Window/
Seat switch
Fuses
F8
Amps 20A
F9
F10
F11
F12F13
F14
F15
F1615A
– –
30A
30A
– – –
Usage
Passive entry/ Passive start 2
Heated seat 2
Empty Empty Driver power seat Passenger power seat Empty Empty EmptyCadillac ELR Owner Manual 2016 - crc - 9/17/15
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Vehicle Care
Fuses
Amps
Usage
F17
F18– –
Empty Empty
Relays
Usage
R1
R2
R3
R4Diodes DIODE
Empty Empty Empty Empty
Empty
Usage
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 0 179.
(Continued)
Warning (Continued)
. Underinflated tires pose
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.
(Continued)
Cadillac ELR Owner Manual 2016 - crc - 9/17/15
(GMNA-Localizing-U.S/Canada-9087644)
Warning (Continued)
. Replace any tires that
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.
All-Season Tires This vehicle may come with all-season tires. These tires are designed to provide good overall performance on most road surfaces
and weather conditions. Original equipment tires designed to GM's specific tire performance criteria have a TPC specification code molded onto the sidewall. Original equipment all-season tires can be identified by the last two characters of this TPC code, which will be “MS.” Consider installing winter tires on the vehicle if frequent driving on snow or ice-covered roads is expected. All-season tires provide adequate performance for most winter driving conditions, but they may not offer the same level of traction or performance as winter tires on snow or ice-covered roads. See Winter Tires 0 273.
Winter Tires This vehicle was not originally equipped with winter tires. Winter tires are designed for increased traction on snow and ice-covered roads. Consider installing winter tires on the vehicle if frequent driving on ice or snow covered roads is expected. See your dealer
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for details regarding winter tire availability and proper tire selection. Also, see Buying New Tires 0 286. 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 and
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.
Cadillac ELR Owner Manual 2016 - crc - 9/17/15
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Caution (Continued)
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 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 0 283.
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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Vehicle Care
Summer Tires This vehicle may come with 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. It is recommended that winter tires be installed on the vehicle if frequent driving at temperatures below approximately 5 °C (40 °F) or on ice or snow covered roads is expected. See Winter Tires 0 273.
Caution
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 high performance summer tires indoors and at temperatures above −7 °C (20 °F) when not in
(Continued)
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.
Cadillac ELR Owner Manual 2016 - crc - 9/17/15
(GMNA-Localizing-U.S/Canada-9087644)
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 0 287. (7) Maximum Cold Inflation Load Limit : Maximum load that can be carried and the maximum pressure needed to support that load.
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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
