I don’t know how far you’ll get, but ask them to refund your grand. They went on a fishing expedition at your expense!That's me - 2019 Model 3 out of warranty end of Sept 2023, and I had Tesla install the powered trunk retrofit in Oct 2023. I paid $1000 for Tesla to diagnose and replace VCFRONT to try to correct the HVAC issue but am I glad I found this thread! I was going to get Tesla to replace my blower motor but now I'll just sit tight and wait for the software fix. Tesla Toronto never told me my intermittent HVAC issue relates to my powered trunk retrofit.