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  Topic Review (Newest First)
11-24-2015 03:57 PM
2015 volt The reason for the two coolant reservoir's is there is:
1. Engine coolant
2. Battery coolant
The propulsion system on our volts has it's own coolant reservoir, and it is monitored separate from the generator.
There are coolant lines and sensors throughout the battery pack and the computer monitors the temperature of the battery pack and will cycle the a/c to help cool the battery when the temp increases.
Also when charging the computer will monitor the temp and cycle the a/c as needed.
11-27-2011 01:39 AM
Two coolant reservoirs?

Hi, checked out a Volt today, why are there two coolant reservoirs under the hood? One front center the other on the right side further back.

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