The small jump start packs will start the Volt just fine by attaching them under the hood to the proper location as indicated in the manual.My question is: how did you open the hatch to actually get access to the 12V battery when it’s dead?
Is it possible to use the jumper terminals under the hood to provide sufficient power to open the hatch release?
Or is there another strategy?
The FAQ page has instructions on how to open the hatch manually if interested.
Or you can open the hatch by attaching the small jump pack under the hood for proper jump starting and go to the rear and press the button normally.(i think)