Quest wont start

Hello, if your security light is flashing when turning the key, there is at the very least a concern with the anti-theft relationship of the key. Have this checked - programming should never be lost, so try a different key? There could be underlying issues additional. Such as - the engine's battery could be insufficient to start the vehicle or operate the anti-theft system properly? Check and test the battery? Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops