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Try cleaning the electrical contacts on the camera and the batteries using a soft microfiber cleaning cloth. If the same warning still displays, then the camera will need to be serviced. To start the repair process, you'll need to complete a Repair Request on our website.
If the camera is more than a year old, you may participate in the Canon Loyalty Program instead. The Canon Loyalty Program option allows you to replace your current camera for a discounted fee, plus shipping. The original non-functioning camera would then be returned to Canon USA for recycling using a prepaid shipping label that would be provided.
If you would like to take part in this option, please call our Sales Department at (800) OK CANON (800-652-2666) seven days a week, 8am to Midnight. Let them know you have been working with online support and the Canon Loyalty Program was offered. Be sure to have your serial number for your camera at the time of your call.