A low traction-battery warning is not automatically a low-voltage battery failure. Record the exact message. Tesla roadside is requested in the Tesla app. Out-of-range assistance may be available but is not financially covered. Current Tesla Model Y books describe a lithium-ion low-voltage battery after the hood is open. Hood terminals unlatch only.
Charge Pro SD can refer an independent operator. You pay them.
If the car is in a travel lane or another dangerous place, call 911.
Call (858) 400-4465. Charge Pro does not send a Charge Pro crew.