Both low beams out

While anything is possible, it is unlikely it's anything the dealership did. More than likely it's just the bulb. As for a "fuse", I wouldn't know the location. But I would think it's fine as well since you have High Beams.

 

Both bulbs going out at the same time is weird. Both fuses blowing at the same time is weird too. But I would absolutely check the fuses and then the bulbs.

 

Weird for sure and I'd agree - check the fuse, then the bulbs. But I've seen it happen - well more than a few times. Weird crap happens on cars and growing up in a dealership, I've probably seen just about everything at least once.

 

I had exactly the same experience on my old Civic Hybrid. Immediately after I had routine maintenance, both of low beans (only low) went out. I took the car back to the dealer but when they told me it will cost at least $100 to just run electrical test, I brought the car back home. The cheapest thing to check first was fuse, which were fine, then moved to bulbs. Got a pair of bulbs from auto parts shop which cost me only ~$5. When I changed both bulbs, yeah, bothe low beams came back on. They have been working fine since then for years now. So, it does happen. Check fuse first then move to bulbs. If that doesn't solve the problem, then think next step which may cost bit more.

 

One burnt out a week earlier and you didn't notice. Happens all the time.

 

I read that as, "you did a burn out a week earlier and didn't notice." My coffee-less brain was trying to figure out how you can do a burnout in a PC... and then not notice it.

 

You do a burnout without noticing it, you may in fact be Ken Block.