battery CADILLAC ELR 2014 Workshop Manual

Black plate (30,1)Cadillac ELR Owner Manual (GMNA-Localizing-U.S./Canada-6081525) -
2014 - Second Edition - 1/22/14
9-30 Driving and Operating
If driving safely on a wet road and it
becomes necessary to slam on the
brakes and continue braking to
avoid a sudden obstacle, a
computer senses that the wheels
are slowing down. If one of the
wheels is about to stop rolling, the
computer will separately work the
brakes at each wheel.
ABS can change the brake pressure
to each wheel, as required, faster
than any driver could. This can help
the driver steer around the obstacle
while braking hard.
As the brakes are applied, the
computer keeps receiving updates
on wheel speed and controls
braking pressure accordingly.
Remember: ABS does not change
the time needed to get a foot up to
the brake pedal or always decrease
stopping distance. If you get too
close to the vehicle in front of you,
there will not be enough time to
apply the brakes if that vehiclesuddenly slows or stops. Always
leave enough room up ahead to
stop, even with ABS.
Using ABS
Do not pump the brakes. Just hold
the brake pedal down firmly and let
ABS work. You might hear the ABS
pump or motor operating and feel
the brake pedal pulsate, but this is
normal.
Braking in Emergencies
ABS allows the driver to steer and
brake at the same time. In many
emergencies, steering can help
more than even the very best
braking.
Electric Parking Brake
The vehicle has an Electric Parking
Brake (EPB). The switch is to the
left of the steering wheel. The EPB
can always be activated, even if the
vehicle is off. To prevent draining
the 12-volt battery, avoid repeated
cycles of the EPB system when the
vehicle is off.
The system has a red parking brake
status light and an amber parking
brake warning light. See
Electric
Parking Brake Light on page 5-20
and Service Electric Parking Brake

Black plate (32,1)Cadillac ELR Owner Manual (GMNA-Localizing-U.S./Canada-6081525) -
2014 - Second Edition - 1/22/14
9-32 Driving and Operating
{Caution
Driving with the parking brake on
can overheat the brake system
and cause premature wear or
damage to brake system parts.
Make sure that the parking brake
is fully released and the brake
warning light is off before driving.
Automatic EPB Release
The EPB will automatically release if
the vehicle is running, placed into
gear, and an attempt is made to
drive away. Avoid rapid acceleration
when the EPB is applied, to
preserve parking brake lining life.
Regenerative Braking
Regenerative braking takes some of
the energy from the moving vehicle
and turns it back into electrical
energy. This energy is then stored
back into the high voltage battery
system, contributing to increased
energy efficiency.The hydraulic disc brakes work with
the regenerative braking to ensure
effective braking, such as when a
high braking demand is requested.
The braking system is computer
controlled and blends the
regenerative braking with the
conventional hydraulic disc brakes
to meet any requirements for
deceleration. The controller
interprets the braking request and
uses regenerative braking,
conventional hydraulic braking, or a
combination of both as necessary.
Because the controller applies the
hydraulic brakes through its high
pressure accumulator, you may
occasionally hear the motor-driven
pump when it recharges the system.
This is normal.
See
Warning Lights, Gauges, and
Indicators on page 5-7 andDriver
Information Center (DIC) on
page 5-38. In the event of a
controller problem, the brake pedal
may be harder to push and the
stopping distance may be longer.
Regen on Demand™
Regen on Demand allows increased
deceleration by pressing and
holding either of the steering wheel
paddle switches. It works in
D (Drive) and L (Low). The
accelerator pedal must be fully
released for it to work.
The brake pedal must be applied at
low speed, because it will not stop
the car.
Cruise control will turn off, and the
brake lights may come on, when
this feature is activated.

Black plate (36,1)Cadillac ELR Owner Manual (GMNA-Localizing-U.S./Canada-6081525) -
2014 - Second Edition - 1/22/14
9-36 Driving and Operating
Mountain Mode
Use when driving in very hilly or
mountainous terrain.
When selected, the Mountain Mode
indicator will display in the DIC.
This feature is intended to maintain
a reserve electrical charge of the
high voltage battery to provide
better grade climbing performance.
While driving in Mountain Mode, the
vehicle will have less responsive
acceleration.
Hold Mode
The Hold Mode is only available
when the vehicle is in the Electric
Mode. Use when wanting to change
to Extended Range Mode to
maintain the battery charge reserve.
SeeExtended Range Mode on
page 9-22.
When selected, the Hold Mode
indicator will display in the DIC.
This feature is intended to place the
remaining battery charge into a
reserve for the driver to use as desired. Hold Mode will not change
normal vehicle acceleration or
braking performance.
Continuous Damping
Control (CDC)
The CDC feature provides superior
vehicle ride and handling under a
variety of passenger and loading
conditions.
The system is fully automatic and
uses a computer controller to
continuously monitor vehicle speed,
wheel to body position, lift/dive, and
steering position of the vehicle. The
controller then sends signals to
each shock absorber to
independently adjust the damping
level to provide the optimum
vehicle ride.
Cruise Control
{Warning
Cruise control can be dangerous
where you cannot drive safely at
a steady speed. Do not use the
cruise control on winding roads or
in heavy traffic.
Cruise control can be dangerous
on slippery roads. On such roads,
fast changes in tire traction can
cause excessive wheel slip, and
you could lose control. Do not use
cruise control on slippery roads.
With cruise control, a speed of
about 40 km/h (25 mph) or more can
be maintained without keeping your
foot on the accelerator. Cruise
control does not work at speeds
below about 40 km/h (25 mph).
If the brakes are applied, the cruise
control disengages.

Black plate (58,1)Cadillac ELR Owner Manual (GMNA-Localizing-U.S./Canada-6081525) -
2014 - Second Edition - 1/22/14
9-58 Driving and Operating
Charging
Plug-In Charging
This section explains the process
for charging the vehicle's high
voltage battery. Do not allow the
vehicle to remain in temperature
extremes for long periods without
being driven or plugged in. It is
recommended that the vehicle be
plugged in when temperatures are
below 0°C (32°F) and above 32°C
(90°F) to maximize high voltage
battery life.
When using a 120-volt AC electrical
outlet, it will take approximately
12.5 hours to charge the vehicle
with the 12 amp AC current setting
or 18 hours using the default 8 amp
AC current setting. When using a
240-volt charging station, it will take
approximately five hours to charge
the vehicle. Charge times will vary
with outside temperature. There are
three ways to program how thevehicle is charged. See
Programmable Charging on
page 5-29.
The charging system may run fans
and pumps that result in sounds
from the vehicle while it is turned
off. Additional unexpected clicking
sounds may be caused by the
electrical devices used while
charging.
While the charge cord is plugged
into the vehicle, the vehicle cannot
be driven.
Charging
Start Charge
1. Make sure the vehicle is parked
and turned off.
2. Push the rearward edge of the charge port door in and release
to open the door.
In cold weather conditions, ice
may form around the charge port
door. Remove ice from the area
before attempting to open or
close the charge port door.
3. Open the rear trunk, lift the leftload support floor cover, and
remove the charge cord. Pull up
on the charge cord handle to
release. The vehicle plug is
stored as shown.
4. Plug the charge cord into the electrical outlet. See Electrical
Requirements for Battery
Charging on page 9-66. Verify
the charge cord status. See the
charge cord user guide. See
Charge Cord on page 9-64.
Select the appropriate charge
level using the Select Charge
Level Preference screen on the

Black plate (60,1)Cadillac ELR Owner Manual (GMNA-Localizing-U.S./Canada-6081525) -
2014 - Second Edition - 1/22/14
9-60 Driving and Operating
Charging Status
Feedback
The vehicle has two ways of
monitoring the charging status of
the high voltage battery. The
Instrument Panel Charging Status
Indicator (CSI) is at the center of the
instrument panel near the
windshield. The LEDs in the Outside
Rearview Mirrors (OSRVM) are also
used to monitor charging status.
Some local laws restricting the use
of colored lights on public roads
may apply to the outside rearview
mirrors charging status feedback. To
turn the OSRVM charge indicator
off, see“Charge Status Feedback”
in Vehicle Personalization on
page 5-51.
Instrument Panel Charging
Status Indicator (CSI)
When the vehicle is plugged in and
the vehicle power is off, the CSI
indicates the following:
.Solid Green –Vehicle is plugged
in. Battery is not fully charged.
Battery is charging.
.Long Flashing Green –Vehicle
is plugged in. Battery is not fully
charged. Battery charging is
delayed.
.Short Flashing Green –Vehicle
is plugged in. Battery is fully
charged.
.Solid Yellow –Vehicle is plugged
in. It is normal for the CSI to turn
yellow for a few seconds after
plugging in a compatible charge
cord. The solid yellow may be
extended depending on the
vehicle temperature or if there is
a total utility interruption via
OnStar. See Utility Interruption of
Charging on page 9-65. This
may also indicate that the
charging system has detected a
fault and will not charge the
battery. See “Charge Cord
Status Indicators” in the charge
cord user guide.
The system may be thermally
conditioning the battery during any
of the states above, requiring
electrical energy to be transferred to
the vehicle.

Black plate (64,1)Cadillac ELR Owner Manual (GMNA-Localizing-U.S./Canada-6081525) -
2014 - Second Edition - 1/22/14
9-64 Driving and Operating
Outside Rearview Mirror
(OSRVM) Charging Status
Indicator
The outside rear view mirrors are
equipped with green LEDs used to
indicate high voltage battery system
charging status. The OSRVM CSI
indicates the following:
.Solid green - Battery is charging
and is less than half complete.
.Fast flashing - Battery is
charging. Battery is more than
half complete.
.Slow flashing - Battery is
charging. Battery is nearly
complete.
.Off - Not charging.
Charge Cord
SeeRadio Frequency Statement on
page 13-15.
A portable charge cord used to
charge the vehicle high voltage
battery is stored under the load
support floor covering in the trunk.
Important Information About
Portable Electric Vehicle Charging
.Charging an electric vehicle can
stress a building’ s electrical
system more than a typical
household appliance.
.Before you plug in to any
electrical outlet, have a qualified
electrician inspect and verify the
electrical system (electrical
outlet, wiring, junctions, and
protection devices) for
heavy-duty service at a 12 amp
continuous load.
.Electrical outlets may wear out
with normal usage or be
damaged over time, making
them unsuitable for electric
vehicle charging.
.Check the electrical outlet/plug
while charging and discontinue
use if the electrical outlet/plug is
hot, then have the electrical
outlet serviced by a qualified
electrician.
.When outdoors, plug into an
electrical outlet that is
weather-proof while in use.
.Mount the charging cord to
reduce strain on the electrical
outlet/plug.
{Warning
Improper use of portable electric
vehicle charge cords may cause
a fire, electrical shock, or burns,
and may result in damage to
property, serious injury, or death.
(Continued)

Black plate (66,1)Cadillac ELR Owner Manual (GMNA-Localizing-U.S./Canada-6081525) -
2014 - Second Edition - 1/22/14
9-66 Driving and Operating
Text will be displayed on the
instrument cluster indicating that a
utility interruption has occurred. See
Instrument Cluster on page 5-7.
Electrical Requirements
for Battery Charging
This vehicle is capable of being
charged with most standard vehicle
charging equipment complying to
one or more of the following:
.SAE J1772
.SAE J2847-2
.IEC 61851-1
.IEC 61851-22
.IEC 61851-23
.IEC 61851-24
.IEC 62196-1
.IEC 62196-2
.IEC 62196-3
.ISO 15118The following are the minimum
requirements for circuits used to
charge this vehicle:
.120 volts/15 amps
.240 volts/20 amps
Charging equipment with a rating of
at least 240 volts/20 amps will
provide the fastest charging time
and best charging efficiency to
recharge the high voltage battery.
240 volt/40 amp circuits provide
flexibility for future vehicle charging
needs. Always follow the charging
equipment installation instructions.
Contact your dealer for more
information.
{Caution
Do not use portable or stationary
backup generating equipment to
charge the vehicle. This may
cause damage to the vehicle's
charging system. Only charge the
vehicle from utility supplied
power.
Fuel
Use of the recommended fuel is an
important part of the proper
maintenance of this vehicle. When
driving in the U.S. and Canada, to
help keep the engine clean and
maintain optimum vehicle
performance, we recommend TOP
TIER Detergent Gasolines. See
www.toptiergas.com for a list of TOP
TIER Detergent Gasolines.
Use premium unleaded gasoline
meeting ASTM specification D4814
with a posted octane rating of 91 or

Black plate (71,1)Cadillac ELR Owner Manual (GMNA-Localizing-U.S./Canada-6081525) -
2014 - Second Edition - 1/22/14
Driving and Operating 9-71
Trailer Towing
General Towing
Information
The vehicle is neither designed nor
intended to tow a trailer or another
vehicle.
For information on towing a disabled
vehicle, seeTowing the Vehicle on
page 10-76. For information on
towing the vehicle behind another
vehicle such as a motor home, see
Recreational Vehicle Towing on
page 10-78.
Conversions and
Add-Ons
Add-On Electrical
Equipment
{Caution
Some electrical equipment can
damage the vehicle or cause
components to not work and
would not be covered by the
warranty. Always check with your
dealer before adding electrical
equipment.
Add-on equipment can drain the
vehicle's 12-volt battery, even if the
vehicle is not operating.
When adding electrical equipment, it
should only be connected using the
accessory power outlets. The
maximum power that can be
supplied by one accessory power
outlet, or spread across all power
outlets, is 200 watts or 15 amps. Exceeding 200 watts or 15 amps
may cause erratic vehicle operation.
See
Power Outlets on page 5-6.

Black plate (1,1)Cadillac ELR Owner Manual (GMNA-Localizing-U.S./Canada-6081525) -
2014 - Second Edition - 1/22/14
Vehicle Care 10-1
Vehicle Care
General Information
General Information . . . . . . . . . . 10-2
California Proposition65 Warning . . . . . . . . . . . . . . . . . 10-2
California Perchlorate Materials Requirements . . . . 10-2
Accessories and Modifications . . . . . . . . . . . . . . . 10-2
Lifting the Vehicle . . . . . . . . . . . . 10-3
Vehicle Checks
Doing Your Own Service Work . . . . . . . . . . . . . . . 10-5
Hood . . . . . . . . . . . . . . . . . . . . . . . . 10-6
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . 10-8
Engine Oil . . . . . . . . . . . . . . . . . . . 10-9
Engine Oil Life System . . . . . 10-12
Engine Air Cleaner/Filter . . . . 10-13
Cooling System (Engine) . . . 10-14
Cooling System (High Voltage Battery) . . . . . . . . . . . 10-15
Cooling System (Power Electronics and Charger
Modules) . . . . . . . . . . . . . . . . . . 10-16
Engine Coolant . . . . . . . . . . . . . 10-16 Engine Overheating . . . . . . . . 10-19
Washer Fluid . . . . . . . . . . . . . . . 10-19
Brakes . . . . . . . . . . . . . . . . . . . . . 10-20
Brake Fluid . . . . . . . . . . . . . . . . . 10-21
Battery . . . . . . . . . . . . . . . . . . . . . 10-23
Electric Drive Unit Shift Lock
Control Function Check . . . 10-25
Park Brake and P (Park) Mechanism Check . . . . . . . . 10-25
Wiper Blade Replacement . . . . . . . . . . . . . . 10-25
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . 10-26
Bulb Replacement
Bulb Replacement . . . . . . . . . . 10-27
LED Lighting . . . . . . . . . . . . . . . 10-27
License Plate Lamp . . . . . . . . 10-27
Replacement Bulbs . . . . . . . . . 10-28
Electrical System
High Voltage Devices andWiring . . . . . . . . . . . . . . . . . . . . . 10-28
Electrical System Overload . . . . . . . . . . . . . . . . . . 10-28
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-29 Instrument Panel Fuse Block
(Left Side) . . . . . . . . . . . . . . . . 10-33
Instrument Panel Fuse Block (Right Side) . . . . . . . . . . . . . . . 10-36
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . 10-39
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-42
All-Season Tires . . . . . . . . . . . . 10-43
Winter Tires . . . . . . . . . . . . . . . . 10-43
Tire Sidewall Labeling . . . . . . 10-44
Tire Designations . . . . . . . . . . . 10-45
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . 10-45
Tire Pressure . . . . . . . . . . . . . . . 10-48
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . 10-49
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . 10-50
Tire Inspection . . . . . . . . . . . . . . 10-54
Tire Rotation . . . . . . . . . . . . . . . 10-54
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . 10-55
Buying New Tires . . . . . . . . . . . 10-56
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . 10-57
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . 10-58

Black plate (5,1)Cadillac ELR Owner Manual (GMNA-Localizing-U.S./Canada-6081525) -
2014 - Second Edition - 1/22/14
Vehicle Care 10-5
When lifting the vehicle from the
rear, place the service jack directly
under one of the spring seats.When lifting the vehicle from the
front, place the service jack directly
under one of the cradle mounts.
Ramps may be needed under the
front tires to provide the necessary
clearance for certain service jacks in
this location.
For more information, seeDoing
Your Own Service Work on
page 10-5.
Vehicle Checks
Doing Your Own
Service Work
{Warning
Never try to do your own service
on high voltage battery
components. You can be injured
and the vehicle can be damaged
if you try to do your own service
work. Service and repair of these
high voltage battery components
should only be performed by a
trained dealer technician with the
proper knowledge and tools.
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.
(Continued)