Well making "an issue out of it" is probably outside of your direct responsibilities, but someone in the bank must be responsible for HR compliance, whether that is someone over HR or someone else that acts as your auditor. I would probably mention to that person that you noticed this during a routine website review and you just wanted to be sure that the on-line application system was up to ADA standards and met the other OFCCP requirements, etc. I might also reference this website as your bank is a Federal contractor due to the fact that you have FDIC insurance.
https://www.dol.gov/ofccp/regs/compliance/faqs/dir281faqs.htm#Q1The important part would be:
But if a contractor only uses an online application system to accept applications for employment, it must ensure that potential applicants with disabilities either can use the system or can submit an application in a timely manner through alternative means. This includes providing a means to contact the contractor, other than through the online system, to request any reasonable accommodation needed to provide an applicant with a disability an equal opportunity to apply and be considered for the contractor’s jobs.