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Failed "Off Board Charging Module"?

624 Views 8 Replies 6 Participants Last post by  usedBolt
Last week we got the orange car with exclamation point/mark warning light on our 2017 Chevy Bolt. When I checked the MyChevy App, it informed me that we had an issue with the Lithium Ion Battery and that it needed to be taken in for service. Our local Chevy dealer service department (which replaced the EV battery last year under the battery fire recall) told us that the problem was the "Off Board Charging Module" [Off-Board Charger Control Module] which they would replace once the parts came in (in a couple weeks). But that's all the detail they had for us. Has anybody else had this issue? Did you get any more details on this failure? They said we could continue to drive the car while we waited for the replacement and that we wouldn't be charged for the repair.
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It sounds like the same part that failed on my 2022 bolt. If so, the car is drivable but won’t charge. I’m still waiting for the part after 45 days.
Clarify please. It obviously won't charge on public DCFC, but will it charge on AC?

There is an on-board inverter (aka charger) that converts AC from your home electrical system to DC to store in the batteries. There is also a separate component called the off-board charging module that communicates with DCFC equipment for faster charging. If the off-board charging module is defective, it wouldn't seem to impact AC charging.
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