The Hunter Engineering GM Road Force machine can operate in two balancing modes: a standard mode for non-GM vehicles and a GM mode, which uses specialized software for servicing GM vehicles. Technicians can access the GM service database by selecting the vehicle via drop-down menus, keying the VIN in manually or scanning the VIN bar code using an optional bar code reader. After entering the vehicle into the system, the technician can quickly view balance-related GM technical service bulletins and wheel and tire specifications all associated with the particular vehicle model being serviced.