TV breakdown 2 days into trip

If it's the original belt, it's possible it was worn out. Usually it would be cracked and weathered long before it breaks however. Had you ever inspected it? This item seams more affected by age than miles.

The usual culprits for "other parts breaking first" are the tensioner and the belt idler pulley. The tensioner can rust up and seize internally, putting extra strain on the belt. You may not get advance warning that it's seized. But it's easy to diagnose because you won't be able to install the the belt. Bad pulley bearing usually makes noise first, but not everybody recognizes them. That noise can range from crickets chirping to loud squealing or sometimes just a rubbing sound that mimics radio static.

Any other parts that could seize up (alternator, water pump, AC compressor etc) can be easily checked by spinning them with the belt off.

It would not surprise me if the belt simply broke apart due to age. Time is harder on some things than mileage. You don't say how old your Taco is, but the mechanic doing the service may have looked at the belt and felt it was fine, not thinking about how old it was also.

I hadn’t inspected the belt, I was hoping that Toyota did, but maybe it wasn’t obvious.

The truck is a 2011, so the belt has some years on it. The pulleys all turn smoothly, and I didn’t notice any strange sounds, so maybe it is just the belt. The shop is looking at it now.

Thanks for the reminder to replace the belt.
Vehicles are complicated. It is amazing they do so well.
In the 1960s cars did not last and we had break downs all the time. We never went anywhere without a large box of tools.

At 60k miles you are inline with the normal replacement intervals on these.
Get your belt and go enjoy your trip.

The water pump on our Ram failed and took the serpentine belt out with it. It was puking coolant and the culprit was pretty obvious. Ours happened on the way home from vacation but it still sucked. It took a few days to get a replacement pump shipped to the small town we were in.

I'd replace the tensioner along with the belt. First time I did it on my SD she tossed the belt on the highway and it was easy to tell as the steering got WAY heavy, coasted her off with the heater cranked all the way with no issues.

New belt the took out the old belt tensioner though costing me another belt and the tensioner. Just an FYI as they are not that expensive. The bearing just dry up.

I personally think that is kinda premature. Who knows, if nothing else caused maybe you just pulled a bad number.

I don't even get serious about inspecting them until 100K.

Here's wishing you have a speedy return to your trip and it is nothing major. I took my truck in this week for an oil change and $1,000 later I got my truck back.

60K is very low mileage to experience a serpentine belt failure, I think most manufacturers specify 100K miles for belt replacement. I'd be looking for another factor, like maybe the tensioner.