Cooling System; Electronics And Charger; Modules) - Cadillac 2016 ELR Owner's Manual

248 Vehicle Care
deionized water. If using this
mixture, nothing else needs to be
added.
The coolant needs to be replaced at
the appropriate interval. See
Maintenance Schedule 0 319.
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
The high voltage battery coolant
reservoir is in the engine
compartment. See Engine
Compartment Overview 0 241.
Check to see if coolant is visible in
the high voltage battery coolant
reservoir. If coolant is visible but the
coolant level is below the cold fill
line, there could be a leak in the

cooling system.

The high voltage battery coolant
should only be serviced by a
qualified technician.
Cooling System (Power

Electronics and Charger

Modules)

The power electronics and charger
modules are cooled using the same
coolant loop.
These modules are kept below a
maximum temperature. If the
temperature rises above this
temperature, the electric cooling
fans will turn on to cool the coolant.
What to Use
The coolant reservoir for these
modules is filled with a 50/
50 mixture of DEX-COOL engine
coolant and deionized water. See
Recommended Fluids and
Lubricants 0 327. If using this
mixture, nothing else needs to be
added.
The coolant needs to be replaced at
the appropriate interval. See
Maintenance Schedule 0 319.
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
The reservoir is in the engine
compartment. See Engine
Compartment Overview 0 241.