A center high-mounted stop lamp (CHMSL) system for a vehicle is provided. The CHMSL system includes a sensor, a primary CHMSL, a wireless secondary CHMSL, a vehicle wireless transceiver, and at least one processor coupled to the sensor, the primary CHMSL, and the vehicle wireless transceiver. The sensor is configured to generate sensor data, such as image data, proximity data, etc., associated with cargo loaded in a bed of the vehicle. The primary CHMSL includes a primary lamp. The wireless secondary CHMSL includes a secondary lamp, a battery, and control circuitry including a CHMSL wireless transceiver and a microcontroller. The processor is configured to facilitate, based on the sensor data, activation of the wireless secondary CHMSL. The processor is also configured to determine, based on the sensor data, whether the primary CHMSL is blocked or not blocked.