Okay, I found the reason the HSA deduction was showing up as $0 in 2019.
I had correctly entered my 2019 contribution of $3,500 in the box labeled "Any contributions you personally made (not through your employer)".
However, I had also incorrectly entered $3,500 in the box labeled "Any contributions you made but personally withdrew before July 15, 2020". I should have entered $0 in this box.
I still do not know why the Vehicle Registration Fee is showing up as $0.
@MarilynG1 Below is information on claiming a deduction for a portion of your California vehicle registration fees. Note that nothing at the following link says the deduction is limited to commercial vehicles.
https://www.dmv.ca.gov/portal/dmv/detail/pubs/brochures/fast_facts/ffvr34#veh_lic_fee
