As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TOL - FLT 4029 - DURING THE TAKEOFF ROLL, CREW WAS ALERTED BY A TAKEOFF CONFIGURATION WARNING. CREW ABORTED THE TAKEOFF AND RETURNED TO THE GATE. OUT STATION MX INSPECTED THE AIRCRAFT FOUND NOTHING IRREGULAR. COULD NOT DUPLICATE THE PROBLEM. AIRCRAFT RETURNED TO SERVICE.