I have an extended warranty on my car and the auto stop/start function has stopped working. The insurance company has said that in order to even assess my claim, I need to pay for a diagnosis first. Yet the thing about electrical issues in cards is that it costs between $150 and $400 to diagnose an issue, and the diagnosis in most cases is 70-80% of the work of repair (once they find the broken wire it'e easy to fix). Can the insurance company require me to pay for an expensive diagnosis - electrical issues are covered - shouldn't they cover the diagnosis?
I haven't changed my battery or had any battery issues since getting the car from the dealer.
As in the car never stops the engine when its supposed to? Or it fails to start after stopping?
Cars with stop-start systems won't stop-start unless the battery is over a certain voltage and/or over a certain "health" threshold calculated by its computer. If its been a few years on the stock battery, it might have degraded to the point where it no longer meets these thresholds?