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7.5A
Mini Fuses
54
Amps
Usage
10A
Run/Crank – Rear Vision Camera, Accessory Power Module 7.5A Run/Crank for
ABS, Aero Shutter, VITM Engine Control Module/ Transmission Control Module – Run/Crank Traction Power Inverter Module – Run/ Crank
J-Case Fuses
16
18
Amps
Usage
J-Case Fuses
Amps
Usage
7.5A Run/Crank – Fuel System Control Module, Air Conditioning Control Module, On Board Charger, Instrument Cluster, Automatic Occupant Sensing, Mirrors
Amps
Usage
20A
30A
AIR Solenoid (PZEV Only) Rear Defogger Lower Grid
19
20
2123
2728
29
3042
43
4430A
–
30A
–
40A
–
30A 60A
30A
30A 40A
Power Window – Front Empty Antilock Brake System Electronic Control Unit Empty AIR Pump (PZEV Only) Empty Front Wipers Antilock Brake System Motor Cooling Fan – Right Front Wipers Charger
Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
(GMNA-Localizing-U.S./Canada-6081525)
Black plate (33,1)
J-Case Fuses
45
48Amps
Usage
–
30A
Empty Cooling Fan – Left
Mini Relays
Usage
11
12
13
14Powertrain Heated Mirrors Empty AIR Pump (PZEV Only) Empty Empty Empty Run/Crank
Vehicle Care
10-33
Micro Relays
Usage
Instrument Panel Fuse Block (Left Side)
10
Empty AIR Solenoid (PZEV Only) Empty Empty Empty
Ultra Micro
Relays
Usage
Empty
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.
Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
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Black plate (34,1)
10-34
Vehicle Care
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
F3
F4
Amps 10A
10A
Fuses
F1
Amps 20A
F2
15A
Usage
Power Outlet/ Cigarette Lighter – Top of IP Storage Bin Infotainment (HMI, CD)
F5
10A
Usage Instrument Cluster Infotainment Display, Steering Wheel Control Switches Heating, Ventilation, & Air Conditioning
Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
(GMNA-Localizing-U.S./Canada-6081525)
Black plate (35,1)
Fuses
F6
Amps 10A
F7
15A
F8
F9
F1010A 10A 15A
Usage
Fuses
Amps
Airbag (Sensing Diagnostic Module/ Passenger Sensing Module) Data Link Connector, Left (Primary) Column Lock OnStar Body Control Module 1/ Body Control Module Electronics/ Keyless Entry/Power Moding/ Center High Mounted Stoplamp/ License Plate
F11
15A
F12
F13
F14
F15–
–
–
20A
Usage Lamps/Left Daytime Running Lamp/Left Parking Lamps/Trunk Release Relay Control/ Washer Pump Relay Control/ Switch Indicator Lights Body Control Module 4/Left Headlamp Empty Empty Empty Power Outlet (Inside Console Bin)
Vehicle Care
10-35
Fuses
Amps
Usage
F16
F17
F185A
–
–
Wireless Charger Empty Empty
Relays
Usage
R1
R2
R3
R4Retained Accessory Power Relay for Power Outlets Empty Empty Empty
Diodes Diode
Empty
Usage
Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
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Black plate (36,1)
10-36
Vehicle Care
Instrument Panel Fuse Block (Right Side)
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.
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.
Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
(GMNA-Localizing-U.S./Canada-6081525)
Black plate (37,1)
Vehicle Care
10-37
Fuses
F5
Amps 7.5A
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
2A
10A
Steering Wheel Switch Auto Headlamp Leveling
Fuses
F3
F4
Amps 10A
15A
Usage Motorized Cup Holder Body Control Module 3/ Right Headlamp
F6
F7
15A
7.5A
Usage
Body Control Module 2/ Body Control Module Electronics/ Trunk Lamp/ Right Daytime Running Lamp/Shifter Lock/Switch Backlighting Tilt/Telescope Column Body Control Module 6/ Map Lights/ Courtesy Lights/ Back-up Lamp
Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
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Black plate (38,1)
10-38
Vehicle Care
Fuses
F8
Amps 15A
F9
F10–
15A
F11
7.5A
F12
F13
F14
F15
F1630A
–
–
–
10A
Usage
Fuses
Amps
Usage
F17
F18–
–
Empty Empty
Relays
Usage
R1
R2
R3
R4Empty Glove Box Door Empty Empty
Diodes DIODE
Empty
Usage
Body Control Module 7/Left Front Turn Signal/Right Rear Stop and Turn Signal Lamp Empty Data Link Connector, Right (Secondary) Universal Garage Door Opener, Rain Sensor, Front Camera Blower Motor Empty Empty Empty Glove Box
Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
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Black plate (39,1)
Vehicle Care
10-39
Rear Compartment Fuse Block
There are two rear compartment fuse blocks, located on the left side of the trunk behind a cover.
The vehicle may not be equipped with all of the fuses, relays, and features shown.
Fuses
Amps
Usage
F1
F2F3
–
15A
5A
Empty Fuel System Control Module Passive Entry/Passive Start
Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
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Black plate (40,1)
10-40
Vehicle Care
Fuses
F4
F5Amps 15A 2A
F6
10A
F7
15A
F8
F930A
–
Usage
Fuses
Amps
Heated Seats Regulated Voltage Control, Current Sensor Fuel (Diurnal Valve and Evap. Leak Check Module) Accessory Power Module Cooling Fan Amplifier Empty
F10
5A
F11
F12
F13F14
F15
F16F17
F1815A
–
30A
30A
–
10A
–
–
Usage Regulated Voltage Control/ Ultrasonic Front and Rear Parking Assist, Side Blind Zone Horn Empty Electric Parking Brake Rear Defog (Upper Grid) Empty Trunk Release Empty Empty
Relays
Usage
R1
R2
R3
R4
R5
R6R7/R8
Diodes DIODE
Rear Defog (Upper Grid) Trunk Release Empty Empty Empty Empty Horn
Usage
Empty
Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
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Black plate (41,1)
Vehicle Care
10-41
Fuses
F12
F13
F14
F15
F16
F17
F18Amps 30A
30A
–
–
–
–
–
Usage
Driver Power Seat Passenger Power Seat Empty Empty Empty Empty Empty
Relays
Usage
R1
R2
R3
R4Diodes DIODE
Empty Empty Empty Empty
Empty
Usage
Fuses
Amps
Usage
F1
F2
F3F4
F5F6
–
15A 10A
10A 10A
–
Empty Radio Pedestrian Protection CDC Memory Seat Module Empty
Fuses
F7
F8
F9
F10
F11Amps 10A
20A
15A
–
–
Usage
Mirror/ Window/Seat Switch Passive Entry/Passive Start 2
Heated Seat 2
Empty EmptyCadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
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Black plate (42,1)
10-42
Vehicle Care
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.
(Continued)
Warning (Continued)
Warning (Continued)
There could be a blowout and a serious crash. See Vehicle Load Limits on page 9-12. . 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.
(Continued)
. Overinflated tires are more likely to be cut, punctured, or broken by a sudden impact — such as when pressure.
. Worn or old tires can
cause a crash. If the tread is badly worn, replace them.
. 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
(Continued)
Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
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Black plate (43,1)
Warning (Continued)
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 on page 10-43.
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 for details regarding winter tire availability and proper tire selection. Also, see Buying New Tires on page 10-56.
Vehicle Care
10-43
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 2014 - Second Edition - 1/22/14
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Vehicle Care
Tire Sidewall Labeling Useful information about a tire is molded into its sidewall. The examples show a typical passenger tire sidewall.
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. 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, 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
Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
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Black plate (45,1)
resistance. For more information see Uniform Tire Quality Grading on page 10-58. (7) Maximum Cold Inflation Load Limit: Maximum load that can be carried and the maximum pressure needed to support that load.
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.
Vehicle Care
10-45
(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.
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, electric
Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
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Black plate (46,1)
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Vehicle Care
drive unit, 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 that is located 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 on page 10-48. 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. 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 on page 9-12.
GAWR FRT : Gross Axle Weight Rating for the front axle. See Vehicle Load Limits on page 9-12. GAWR RR : Gross Axle Weight Rating for the rear axle. See Vehicle Load Limits on page 9-12. 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. 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.Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
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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. Normal Occupant Weight : The number of occupants a vehicle is designed to seat multiplied by 68 kg (150 lbs). See Vehicle Load Limits on page 9-12. 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. Recommended Inflation Pressure : Vehicle manufacturer's recommended tire inflation pressure as shown on the tire placard. See Tire Pressure on page 10-48 and Vehicle Load Limits on page 9-12.
Vehicle Care
10-47
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. 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
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Black plate (48,1)
10-48
Vehicle Care
of a tire when only 1.6 mm (1/16 in) of tread remains. See When It Is Time for New Tires on page 10-55. 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 on page 10-58. Vehicle Capacity Weight : The number of designated seating positions multiplied by 68 kg (150 lbs) plus the rated cargo load. See Vehicle Load Limits on page 9-12.
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's capacity weight and the original equipment tire size and recommended inflation pressure. See “Tire and Loading Information Label” under Vehicle Load Limits on page 9-12.
Tire Pressure Tires need the correct amount of air pressure to operate effectively.
{ 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.
Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
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Black plate (49,1)
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. For additional information regarding how much weight the vehicle can carry, and an example of the Tire and Loading Information label, see Vehicle Load Limits on page 9-12. How the vehicle is loaded affects vehicle handling and ride comfort. Never load the vehicle with more weight than it was designed to carry.
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 tire valve stem. Press the tire gauge firmly onto the valve to get the pressure measurement. If the cold tire inflation pressure matches the recommended pressure on the Tire and Loading Information label, no further adjustment is necessary. If the inflation pressure is low, add air until the recommended pressure is reached. If the inflation pressure in high, press on the metal stem in the center
Vehicle Care
10-49
of the tire valve to release air. Re-check the tire pressure with the tire gauge. Return the valve caps on the valve stems to keep out dirt and moisture and prevent leaks.
Tire Pressure Monitor System The Tire Pressure Monitor System (TPMS) uses radio and sensor technology to check tire pressure levels. The TPMS sensors monitor the air pressure in your tires and transmit tire pressure readings to a receiver located in the vehicle. Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard or tire inflation pressure label. (If your vehicle has tires of a different size than the size indicated on the vehicle placard or
Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
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Black plate (50,1)
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Vehicle Care
tire inflation pressure label, you should determine the proper tire inflation pressure for those tires.) As an added safety feature, your vehicle has been equipped with a tire pressure monitoring system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires is significantly under-inflated. Accordingly, when the low tire pressure telltale illuminates, you should stop and check your tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly under-inflated tire causes the tire to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling and stopping ability. Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver's responsibility to maintain correct tire pressure, even if under-inflation has
not reached the level to trigger illumination of the TPMS low tire pressure telltale. Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the system is not operating properly. The TPMS malfunction indicator is combined with the low tire pressure telltale. When the system detects a malfunction, the telltale will flash for approximately one minute and then remain continuously illuminated. This sequence will continue upon subsequent vehicle start-ups as long as the malfunction exists. When the malfunction indicator is illuminated, the system may not be able to detect or signal low tire pressure as intended. TPMS malfunctions may occur for a variety of reasons, including the installation of replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels on your vehicle to
ensure that the replacement or alternate tires and wheels allow the TPMS to continue to function properly. See Tire Pressure Monitor Operation on page 10-50. See Radio Frequency Statement on page 13-15.
Tire Pressure Monitor Operation This vehicle may have a Tire Pressure Monitor System (TPMS). The TPMS is designed to warn the driver when a low tire pressure condition exists. TPMS sensors are mounted onto each tire and wheel assembly, excluding the spare tire and wheel assembly. The TPMS sensors monitor the air pressure in the tires and transmit the tire pressure readings to a receiver located in the vehicle.
Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
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Black plate (51,1)
about the DIC operation and displays see Driver Information Center (DIC) on page 5-38. The low tire pressure warning light may come on in cool weather when the vehicle is first started, and then turn off as the vehicle is driven. This could be an early indicator that the air pressure is getting low and needs to be inflated to the proper pressure. A Tire and Loading Information label, attached to your vehicle, shows the size of the original equipment tires and the correct inflation pressure for the tires when they are cold. See Vehicle Load Limits on page 9-12, for an example of the Tire and Loading Information label and its location. Also see Tire Pressure on page 10-48. The TPMS can warn about a low tire pressure condition but it does not replace normal tire maintenance. See Tire Inspection
Vehicle Care
10-51
on page 10-54, Tire Rotation on page 10-54 and Tires on page 10-42.
{ Caution
Tire sealant materials are not all the same. A non-approved tire sealant could damage the TPMS sensors. TPMS sensor damage caused by using an incorrect tire sealant is not covered by the vehicle warranty. Always use only the GM approved tire sealant available through your dealer or included in the vehicle.
Factory-installed Tire Inflator Kits use a GM approved liquid tire sealant. Using non-approved tire sealants could damage the TPMS sensors. See Tire Sealant and Compressor Kit on page 10-63 for information regarding the inflator kit materials and instructions.
When a low tire pressure condition is detected, the TPMS illuminates the low tire pressure warning light on the instrument cluster. If the warning light comes on, stop as soon as possible and inflate the tires to the recommended pressure shown on the Tire and Loading Information label. See Vehicle Load Limits on page 9-12. A message to check the pressure in a specific tire displays in the Driver Information Center (DIC). The low tire pressure warning light and the DIC warning message come on at each ignition cycle until the tires are inflated to the correct inflation pressure. Using the DIC, tire pressure levels can be viewed. For additional information and details
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Vehicle Care
TPMS Malfunction Light and Message The TPMS will not function properly if one or more of the TPMS sensors are missing or inoperable. When the system detects a malfunction, the low tire warning light flashes for about one minute and then stays on for the remainder of the ignition cycle. A DIC warning message also displays. The malfunction light and DIC warning message come on at each ignition cycle until the problem is corrected. Some of the conditions that can cause these to come on are: . One of the road tires has been
replaced with the spare tire, if equipped. The spare tire does not have a TPMS sensor. The malfunction light and DIC message should go off after the road tire is replaced and the sensor matching process is performed successfully. See “TPMS Sensor Matching Process” later in this section.
The TPMS sensor matching process was not done or not completed successfully after rotating the tires. The malfunction light and the DIC message should go off after successfully completing the sensor matching process. See "TPMS Sensor Matching Process" later in this section.
. One or more TPMS sensors are
missing or damaged. The malfunction light and the DIC message should go off when the TPMS sensors are installed and the sensor matching process is performed successfully. See your dealer for service.
. Replacement tires or wheels do not match the original equipment tires or wheels. Tires and wheels other than those recommended could prevent the TPMS from functioning properly. See Buying New Tires on page 10-56.
. Operating electronic devices or being near facilities using radio wave frequencies similar to the TPMS could cause the TPMS sensors to malfunction.
If the TPMS is not functioning properly it cannot detect or signal a low tire condition. See your dealer for service if the TPMS malfunction light and DIC message come on and stay on. TPMS Sensor Matching Process Each TPMS sensor has a unique identification code. The identification code needs to be matched to a new tire/wheel position after rotating the vehicle’s tires or replacing one or more of the TPMS sensors. The TPMS sensor matching process should also be performed after replacing a spare tire with a road tire containing the TPMS sensor. The malfunction light and the DIC message should go off at the next ignition cycle. The sensors are matched to the tire/wheel positions,
Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
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using a TPMS relearn tool, in the following order: driver side front tire, passenger side front tire, passenger side rear tire, and driver side rear. See your dealer for service or to purchase a relearn tool. There are two minutes to match the first tire/wheel position, and five minutes overall to match all four tire/wheel positions. If it takes longer, the matching process stops and must be restarted. The TPMS sensor matching process is: 1. Set the parking brake. 2. Place the vehicle power mode in ON/RUN. See Power Button on page 9-16.
3. Make sure the Tire Pressure info
display option is turned on. The info displays on the DIC can be turned on and off through the Settings menu. See Driver Information Center (DIC) on page 5-38.
4. Use the five-way DIC control on
8. Proceed to the passenger side
Vehicle Care
10-53
the right side of the steering wheel to scroll to the Tire Pressure screen under the DIC info page. See Driver Information Center (DIC) on page 5-38.
5. Press and hold the SEL button
in the center of the five-way DIC control. The horn sounds twice to signal the receiver is in relearn mode and the TIRE LEARNING ACTIVE message displays on the DIC screen.
6. Start with the driver side
front tire.
7. Place the relearn tool against
the tire sidewall, near the valve stem. Then press the button to activate the TPMS sensor. A horn chirp confirms that the sensor identification code has been matched to this tire and wheel position.
front tire, and repeat Step 7.
9. Proceed to the passenger side
rear tire, and repeat Step 7.
10. Proceed to the driver side rear
tire, and repeat Step 7. The horn sounds two times to indicate the sensor identification code has been matched to the driver side rear tire, and the TPMS sensor matching process is no longer active. The TIRE LEARNING ACTIVE message on the DIC display screen goes off.
11. Shut the ignition off. 12. Set all four tires to the
recommended air pressure level as indicated on the Tire and Loading Information label.
Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
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Vehicle Care
Tire Inspection We recommend that the tires, including the spare tire, if the vehicle has one, be inspected for signs of wear or damage at least once a month. Replace the tire if: . The indicators at three or
more places around the tire can be seen.
. There is cord or fabric
showing through the tire's rubber.
. The tread or sidewall is
cracked, cut, or snagged deep enough to show cord or fabric.
. The tire has a bump, bulge,
or split.
. The tire has a puncture, cut, or other damage that cannot be repaired well because of the size or location of the damage.
Tire Rotation Tires should be rotated every 12 000 km (7,500 mi). The first rotation is the most important. See Maintenance Schedule on page 11-2. Tires are rotated to achieve a more uniform wear for all tires. Anytime unusual wear is noticed, rotate the tires as soon as possible, check for proper tire inflation pressure, and check for damaged tires or wheels. If the unusual wear continues after the rotation, check the wheel alignment. See When It Is Time for New Tires on page 10-55
and Wheel Replacement on page 10-60.Use this rotation pattern when rotating the tires. Adjust the front and rear tires to the recommended inflation pressure on the Tire and Loading Information label after the tires have been rotated. See Tire Pressure on page 10-48
and Vehicle Load Limits on page 9-12. Reset the Tire Pressure Monitor System. See Tire Pressure Monitor Operation on page 10-50.Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
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Check that all wheel nuts are properly tightened. See “Wheel Nut Torque” under Capacities and Specifications on page 12-2.
tire rotation to prevent corrosion or rust build-up. Do not get grease on the flat wheel mounting surface or on the wheel nuts or bolts.
When It Is Time for New Tires Factors such as maintenance, temperatures, driving speeds, vehicle loading, and road conditions affect the wear rate of the tires.
{ Warning
Rust or dirt on a wheel, or on the parts to which it is fastened, can make wheel nuts become loose after a time. The wheel could come off and cause a crash. When changing a wheel, remove any rust or dirt from places where the wheel attaches to the vehicle. In an emergency, a cloth or a paper towel can be used, however, use a scraper or wire brush to remove all rust or dirt.
Lightly coat the center of the wheel hub with wheel bearing grease after a wheel change or
Vehicle Care
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Treadwear indicators are one way to tell when it is time for new tires. Treadwear indicators appear when the tires have only 1.6 mm (1/16 in) or less of tread remaining. See Tire Inspection on page 10-54 and Tire Rotation on page 10-54. The rubber in tires ages over time. This also applies to the spare tire, if the vehicle has one, even if it is never used. Multiple factors including temperatures, loading conditions, and inflation pressure maintenance affect how fast aging takes place. GM recommends that tires, including the spare if equipped, be replaced after six years, regardless of tread wear. The tire manufacture date is the last four digits of the DOT Tire Identification Number (TIN) which is molded into one side of the tire sidewall. 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.
Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
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Vehicle Care
Vehicle Storage Tires age when stored normally mounted on a parked vehicle. Park a vehicle that will be stored for at least a month in a cool, dry, clean area away from direct sunlight to slow aging. This area should be free of grease, gasoline, or other substances that can deteriorate rubber. Parking for an extended period can cause flat spots on the tires that may result in vibrations while driving. When storing a vehicle for at least a month, remove the tires or raise the vehicle to reduce the weight from the tires.
Buying New Tires GM has developed and matched specific tires for the vehicle. The original equipment tires installed were designed to meet General Motors Tire Performance Criteria Specification (TPC Spec) system rating. When
replacement tires are needed, GM strongly recommends buying tires with the same TPC Spec rating. GM's exclusive TPC Spec system considers over a dozen critical specifications that impact the overall performance of the vehicle, including brake system performance, ride and handling, traction control, and tire pressure monitoring performance. GM's TPC Spec number is molded onto the tire's sidewall near the tire size. If the tires have an all-season tread design, the TPC spec number will be followed by MS, for mud and snow. See Tire Sidewall Labeling on page 10-44. GM recommends replacing worn tires in complete sets of four. Uniform tread depth on all tires will help to maintain the performance of the vehicle.
Braking and handling performance may be adversely affected if all the tires are not replaced at the same time. If proper rotation and maintenance have been done, all four tires should wear out at about the same time. See Tire Rotation on page 10-54. However, if it is necessary to replace only one axle set of worn tires, place the new tires on the rear axle. 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. Never exceed the winter tires’ maximum speed capability when using winter tires with a lower speed rating.
Cadillac ELR Owner Manual 2014 - Second Edition - 1/22/14
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{ Warning
{ Warning
Tires could explode during improper service. Attempting to mount or dismount a tire could cause injury or death. Only your dealer or authorized tire service center should mount or dismount the tires.
{ Warning
Mixing tires of different sizes, brands, or types may cause loss of control of the vehicle, resulting in a crash or other vehicle damage. Use the correct size, brand, and type of tire on all wheels.
Using bias-ply tires on the vehicle may cause the wheel rim flanges to develop cracks after many miles of driving. A tire and/or wheel could fail suddenly and cause a crash. Use only radial-ply tires with the wheels on the vehicle.
If the vehicle tires must be replaced with a tire that does not have a TPC Spec number, make sure they are the same size, load range, speed rating, and construction (radial) as the original tires. Vehicles that have a tire pressure monitoring system could give an inaccurate low-pressure warning if non-TPC Spec rated tires are installed. See Tire Pressure Monitor System on page 10-49.
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The Tire and Loading Information Label indicates the original equipment tires on the vehicle. See Vehicle Load Limits on page 9-12, for the label location and more information about the Tire and Loading Information label.
Different Size Tires and Wheels If wheels or tires are installed that are a different size than the original equipment wheels and tires, vehicle performance, including its braking, ride and handling characteristics, stability, and resistance to rollover may be affected. If the vehicle has electronic systems such as antilock brakes, rollover airbags, traction control, electronic stability control, or All-Wheel Drive, the performance of these systems can also be affected.
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Vehicle Care
{ Warning
If different sized wheels are used, there may not be an acceptable level of performance and safety if tires not recommended for those wheels are selected. This increases the chance of a crash and serious injury. Only use GM specific wheel and tire systems developed for the vehicle, and have them properly installed by a GM certified technician.
See Buying New Tires on page 10-56 and Accessories and Modifications on page 10-2.
Uniform Tire Quality Grading Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width. For example:
Treadwear 200 Traction AA Temperature A The following information relates to the system developed by the United States National Highway Traffic Safety Administration (NHTSA), which grades tires by treadwear, traction, and temperature performance. This applies only to vehicles sold in the United States. The grades are molded on the sidewalls of most passenger car tires. The Uniform Tire Quality Grading (UTQG) system does not apply to deep tread, winter tires, compact spare tires, tires with
