We have recently enhanced the cruise controller to detect if the battery pack is in place. If the battery is switched off, or is not connected at all, the controller will check the back EMF voltage, if it exceeds the preset limit, the controller will disable the regenerative braking to protect controller from being damaged. Now our new version of cruise controller is much more reliable than before. I'd like to take this opportunity to thank all contributors who gave us feedback and suggestions, to help improve the quality and reliability of GM products.
The regenerative braking function will be resumed automatically when the battery is switched back on.