The employees are now being investigated and face disciplinary action after being caught writing personal comments on the site.
Workers are banned from accessing social networking websites on the computers they use during their shifts; however the staff are thought to have posted the remarks outside of work and were later reported to management.
A DVLA spokesman said:
“Although instances are extremely rare, any inappropriate postings by staff made outside of work will be investigated and could result in disciplinary action.
“All staff are aware of the guidance in place and are reminded on a regular basis.”
The organisation sacked three workers in 2011 for misusing Facebook and Twitte