It's not necessary to set the maximum tire count in vehicle records, but doing so eliminates a warning stating that you've exceeded the maximum allowable tires from popping up every time a tire is mounted. Once the correct maximum tire count is set, if that warning pops up again, you'll know there really is a potential problem. The maximum tire count can be set individually through the vehicle record or globally for a range of vehicles using the Global Vehicle Change program in the Utilities 2 add-on package (SIVG). To set the maximum tire count for an individual vehicle record, do the following: