Chevrolet Spark EV 2015 Owner's Manual page 245

10-8 Vehicle Care
coolant level is below the cold fill
line, there could be a leak in the
cooling system.
Cooling System (TPIM,
APM, and Charger
Modules)
The Traction Power Inverter Module
(TPIM), Accessory Power Module
(APM), and charger module are
cooled using a separate
coolant loop.
These modules are kept below a
maximum temperature. If the
temperature rises above this
temperature, the electric cooling fan
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 coolant
and deionized water. See
Recommended Fluids and
Lubricants on page 11-8. If using
this mixture, nothing else needs to
be added.
The coolant needs to be replaced at
the appropriate interval. See
Maintenance Schedule on
page 11-2.
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
The reservoir is in the underhood
compartment. See Underhood
Compartment Overview on
page 10-6.
1. TPIM, APM, and Charger
Module Coolant Reservoir
2. Heater Coolant Reservoir
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
coolant mixture at the coolant
reservoir.
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.