If you’ve seen this message while using a save editor like NFS Carbon Save Editor (by nfsu360, VltEdit, or similar tools), don’t worry — it’s usually fixable. Here’s everything you need to know.
To prevent the "Invalid Heat" error from returning, keep these tips in mind:
In NFS Carbon , every car in your garage has a hidden — a value tied to the police pursuit system and how “hot” the car is to law enforcement. Save editors expose this value to let you modify it.
Need for Speed: Carbon remains a fan-favorite nearly two decades after its release, especially among modders and save-editing enthusiasts. However, one frustrating error can bring your customization session to a halt:

