[David and Teresa]

A Google search returned this;

"Anytime you have an intermittent fault indication like that, you should check the battery, it's main cable connections and the charging voltage first before doing anything else. VSS is "vehicle stability system", commonly called "the nanny"." 

I would recommend getting a monitoring system like BlueFire or SilverLeaf. You should reference "Engine and Transmission Monitoring Systems" on the forum.

I'll check those. I thought VSS stood for Vehicle Speed Sensor.