Rear washer systems are not arranged identically across vehicles. Some share a reservoir with the front washers, and not all provide a separate rear-fluid warning. Confirm the message and filling location in the owner's manual.
Use the specified washer fluid suitable for the expected temperatures. If the reservoir is adequately filled but the rear nozzle does not spray, a fluid-level issue may not explain the problem.
Describe both front and rear washer operation when contacting The Car Clinic of Miami in Miami. Mention any visible leakage or frozen conditions, and avoid repeatedly running a system that is empty or frozen.