What Does This Indicator Mean?
The Chery Yellow Blind Spot Monitoring (BSM) Warning Light indicates a fault, obstruction, or calibration failure within the vehicle’s advanced driver-assistance safety architecture. Specifically, Chery vehicles utilize high-frequency radar transceivers, ultrasonic transducers, or optical cameras mounted inside the rear bumper fascias and side mirror assemblies to scan adjacent lanes for overtaking or hidden vehicles. When the BSM control module or the Body Control Module (BCM) detects an internal diagnostic trouble code (DTC), signal interruption, or sensor blockage, it illuminates this amber-colored indicator on the instrument cluster. This subsystem directly affects active driver safety overlays, degrading the vehicle’s situational awareness features while leaving the core powertrain unaffected.
Can I Still Drive with This Light On?
Yes, you can physically continue to drive the vehicle because a yellow severity rating designates a non-critical advisory or auxiliary system fault rather than an immediate powertrain or braking emergency. However, you must immediately adjust your driving habits. Because the Blind Spot Monitoring system is deactivated or impaired, you cannot rely on radar warnings or mirror indicator lights to clear adjacent lanes during highway passing or turning maneuvers. You must revert entirely to manual mirror checks and shoulder checks until the diagnostic procedure is performed and the underlying fault is successfully rectified.
Common Causes of the Warning
- Radar Sensor Misalignment or Impact: Minor rear-end collisions, parking lot bumps, or bumper fascia displacement can shift the precise horizontal and vertical mounting angle of the radar modules, triggering calibration faults.
- Surface Contamination and Obstruction: Accumulations of heavy mud, dense snow, road salt, or thick window film directly over the rear bumper radar transceiver zones or side-mirror indicator lenses will block signal propagation.
- Wiring Harness or Connector Corrosion: Moisture intrusion into the weather-pack electrical connectors supplying power, ground, and CAN-bus data communication to the bumper-mounted radar units can cause high resistance or intermittent signal drops.
How to Diagnose and Reset It
Begin the diagnostic procedure by thoroughly washing the rear bumper fascias and side mirrors to clear away any dirt, ice, or salt deposits that may be obstructing the sensors. Next, perform a manual visual inspection of the rear bumper for any signs of physical impact, cracks, or loose mounting brackets that could alter sensor orientation. If the physical components are clean and secure, connect an advanced OBD-II diagnostic scanner capable of communicating with the Body Control Module (BCM) and Advanced Driver Assistance System (ADAS) modules to retrieve specific diagnostic trouble codes. Use a digital multimeter to verify that the sensor harness is receiving stable battery voltage and ground continuity. Once the root cause—such as a corroded pin or a misaligned module—is physically repaired or recalibrated using specialized Chery diagnostic software, clear the active fault codes from the module memory to extinguish the warning light.