We're sorry to hear about your trouble with contacting us. For Ryobi products, the model number and serial number location varies based on the product. In general, look for a sticker or plate on your product that has various numbers. The model number is typically labeled directly as such, while the serial number may sometimes be shown as "S/N" or "Serial No". For your specific model RY4010158TL, refer to the manual or look closely at the device. If there are two numbers and you're not sure which is which, try entering both during the registration process. The system should be able to determine which is the correct number for registration.
Gefragt Jun 20, 2024 3:03 PM