Avalanche Warning 2025 Battery. According to stellantis boss carlos tavares, an ev battery shortage is a strong possibility by 2025. Apparently if you run the battery below 10v or something the truck is fubar and throws codes all over the place when you try to start it (not knowing the battery is low).
Check you battery voltage after the truck has been stopped for at least an hour. The service battery charging system message in your chevy avalanche is an essential warning that indicates the voltage coming from the alternator is too low.