Category analysis
Where warranty value can appear
Starters and alternators are genuine mechanical or electrical failures. A 12-volt battery is usually a consumable, even when all three problems leave the car equally unwilling to start.
The 3 benchmarks in this category put parts between $160 and $850.
Modeled labor ranges from 0.4 to 6 hours. At the $148 median metro rate, that is roughly $59 to $886 before parts.
Read each component separately. Contracts often cover the alternator and starter while placing the battery beside other maintenance items.