The camera or battery is heated to some extent during operation because the power consumed by the camera is partly converted to heat. Normally, this is not an indication of a malfunction. If necessary, turn the camera off and allow time for it to cool down.
If the issue is still unresolved, the camera may need service.
For all Sony products (EXCEPT VAIO computers): To send your product to a Sony facility to be repaired or to check the status of the a repair, visit our eService web site.
For VAIO Computer products: Please call 1-888-4SONYPC (476-6972) for service information for your product. To check the status of your VAIO product repair, have your phone number or Best Buy service number available and call 1-800-433-5778.