As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED AFTER TAKEOFF IN YYZ, -DOWNLOCK RELEASE- BUTTON HAD TO BE PUSHED TO GET THE GEAR HANDLE TO COME UP, NO EICAS MESSAGE NOTED. FLIGHT CONTINUE TO NEWARK THE LANDING WAS UNEVENTFUL. MAINTENANCE REMOVED AND REPLACED THE LANDING GEAR CONTROL LEVER IAW EMB145 AMM 32-32-02 OPS CHECKED GOOD. PERFORMED LANDING GEAR EXTENSION AND RETRACT TEST IAW EMB145 AMM 32-32-00. NO FAULTS FOUND. AIRCRAFT RETURNED TO SERVICE.