2013 Chevrolet Volt Owner Manual - Page 272

10-24 Vehicle Care Notice: The vehicle is equipped with an AGM/VRLA 12-volt battery, which can be damaged by using the incorrect type of trickle charger. An AGM/ VRLA-compatible charger must be used, with the appropriate setting selected. Follow the trickle charger manufacturer instructions. Reconnecting the 12-Volt Black Negative Cable With the 12-volt black negative (−) cable disconnected, the hatch cannot be opened by pressing the hatch release button. If the hatch is closed and latched, reopen it: 1. Use the door key to open the driver door. 2. Manually unlock and open one of the rear doors. 3. Lower one of the rear seatbacks. 4. Pull the load floor cover forward to access and reconnect the 12-volt battery black negative (−) cable. 5. After the cable has been connected, open the hatch and then tighten the cable. After the battery cable is reconnected, it is possible that the vehicle may not operate in Electric Mode. If this happens, the high voltage battery may need to be charged. Up to four weeks . Plug in the high voltage battery charge cord if temperatures will exceed 35°C (95°F) and keep the 12-volt battery cables connected. Discharge the high voltage battery until two or three bars remain on the battery range indicator (Battery symbol) on the instrument cluster. Do not plug in the high voltage battery charge cord. Remove the black negative (−) cable from the 12-volt battery and attach a trickle charger to the battery terminals or keep the 12-volt battery cables connected and trickle charge from the underhood remote positive (+) and negative (−) terminals. See Jump Starting on page 10‑69 for the location of these terminals. Four weeks to 12 months . . Electric Drive Unit Shift Lock Control Function Check . { WARNING When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured. 1. Before starting this check, be sure there is enough room around the vehicle. It should be parked on a level surface.