Intermittent starting problems - do dealers/shops have machines to diagnose exactly the issue(s)?

Once / twice a month you turn the key & all the lights on the dash go on but no sounds at all. No clicks, no starter sounds at all. Then you turn the key 4 more or 10 more times and it starts. Or leave it an hour and it starts?

I cleaned the battery terminals, the battery is 1.5 years old.

2009 cx-9 with 140000 miles.

 

If the problem is not easily found, mechanics may attempt to replicate the issue to observe and diagnose it directly.

Intermittent problems can be challenging to diagnose because they don't always occur when the vehicle is in the shop. However, with a combination of thorough testing and examination of potential trouble spots, experienced technicians can often pinpoint the issue. It's essential to provide as much information as possible about the problem's frequency, conditions under which it occurs, and any specific patterns you've noticed to help the technicians in their diagnosis.