NHTSA Complaint #11511471 — 2023 VOLVO XC60

Now on TWO occasions found car completely without power after sitting unused for 2 or 3 days. On both occasions car plugged into Level 2 charger overnight (this is a plug in hybrid model). Required jump start after having to use emergency key to get inside. After jumpstart, received numerous propulsion system errors as well as on first incident, errors saying SOS communication system disabled. Dealer replaced TCAM battery with fresh one stating that computer tries to do updates and drains battery, and dealer lot has occasional dead cars with similar issue. On second incident, car moved into “turtle” limp home mode with critical 12V charging messages. In both instances, car was in a conditioned garage around 48 degrees. Hybrid battery was 100% charged in both cases. Concerned there is a batter drain due to TCAM or main software systems. This is more than inconvenience - this could be a real danger to have a car that may not start reliably after sitting for 48 hours, such as an airport or other setting where getting help is difficult. Limp home mode is driving hazard. There are multiple instances of this on Volvo websites that seems to impact multiple T8 models with a plug in hybrid power train and Google AAOS infotainment/car system architecture. Please help!