Open your save in a tool like or the Carbon Save Editor by CoDeRiPPeR . Locate the "Car Garage" or "Car Lot" section. Select the car marked with the error. Manually change the "Heat" or "Condition" value to 1.0 .
Avoid editors from 2006. Use the NFS Carbon Extra Options mod, which allows you to reset heat levels in-game via a hotkey, bypassing the need for external save editing. Recommended Tools for NFS Carbon NFS-VltEd Editing car stats and global game variables. Carbon Save Editor Quick fixes for cash and heat levels. Save Editor by Arushan Fixing checksum errors after manual edits.
Always click "Fix Checksum" before saving, or the game will see the file as "Corrupt." 2. Manual Hex Editing