I noticed in the 11/01/2019 (current) benefits guides, language was changed to indicate that pickup trucks are covered. Previously, I interpreted pick ups not be covered as "vehicles with open cargo beds" and "trucks" were not covered.

I called late last year to inquire about several vehicles and was told pickup trucks were.covered but I was skeptical (as was another posted in a Hertz thread where I mentioned it) as the Benefits guide available at the time (the Oct 2018 one) seemed to exclude pickups
I noticed the new language specifically mention pickups being covered. The bolded parts are new (including the two new sections concerning pickup beds):

The following relevant sections are new:

What Vehicles Are Not Covered?
Certain vehicles are not covered by this benefit, including: antique
cars (cars over twenty (20) years old or that have not been
manufactured for ten (10) years or more), cargo vans, vehicles
with open cargo beds, trucks, (other than pick-ups), motorcycles,
mopeds, motorbikes, limousines, and recreational vehicles and
passenger vans with seating for more than nine (9) people,
including the driver (passenger vans with seating for nine (9) or
less, including the driver, are covered).

Damage to the interior bed of a pick-up truck unless such
damage is caused by or the result of a covered loss, such as
theft or collision
• Damage to a pick-up truck that is a result of loading or
unloading objects into the bed