2024 Honda Ridgeline slow starting

[millerbl00]

I have a 2024 Honda Ridgeline with 25k miles and a strange problem has appeared. Slow starting. Overnight it starts fine. Even after work it starts fine. But after its hot and waiting 15 min is slow to crank. I had the battery tested and its good. We have had very hot weather here could it be "heat soaking" the starter and causing slow cranks?

thanks!

 

[Devo242]

Being a 2024 the car has start/stop feature, correct? Is that having any issues when hot?

Start simple, check the ground cable on the battery connection.

How was the battery tested?

 

[millerbl00]

I dont use the start/stop, But when I forget to turn it off its fine. Dealership checked battery. Seems to only do it when heat soaked.

 

[mclasser]

It's under warranty so take it to the dealer and replicate the conditions -- hot restart after 15 min -- so they can catch it in the act.

 

[JavierH19]

Dealer must figure it out. Keep it properly documented for lemon law purposes.

 

[millerbl00]

UOA is excellent so I'm sure its minor

 

[meep]

Check voltage at battery terminals while cranking. In a newer vehicle I’d expect to see 10-11 while cranking.

Some Honda starters have had early failure from solenoid contact wear, such as late teens CRVs around 40-60k.

Also could be that battery has a weak cell, my first guess. Turn car off. Turn headlights on for 15 minutes. Test voltage. Better be above 12.