VSA activation Indicator Does Not Come On At Start-Up (Bulb Check) (07-09 Models)
VSA activation indicator does not come on at start-up (bulb check) ('07-09 models)
Do the gauge control module troubleshooting Initial Inspection and Diagnostic Overview.
Substitute a known-good VSA modulator-control unit, then recheck. If it is OK, replace the original VSA modulator-control unit Service and Repair.