What Does This Indicator Mean?
The Dodge Yellow Adaptive Cruise Control ACC Error Light alerts the driver to a malfunction or temporary degradation within the vehicle’s automated distance-keeping and collision-avoidance radar or camera subsystems. Modern Dodge vehicles, such as the Durango, Charger, and Challenger, rely heavily on a front bumper-mounted radar transceiver and an upper windshield-mounted forward-facing camera to calculate the distance and relative speed of leading traffic. When the Powertrain Control Module (PCM), Cruise Control Module, or the Advanced Driver Assistance Systems (ADAS) module detects a fault—such as a blocked sensor field of view, lost network communication over the CAN bus, or an internal sensor calibration error—it illuminates this yellow indicator on the instrument cluster to inform the operator that autonomous speed regulation features are temporarily disabled.
Can I Still Drive with This Light On?
Yes, you can still safely drive the vehicle, but with an important limitation. Because this is a yellow informational and advisory warning indicator rather than a red critical fault, the core mechanical functionality, braking systems, and standard steering of your Dodge remain fully operational. However, your Adaptive Cruise Control, Forward Collision Warning, and automatic emergency braking enhancements will be disabled. You must rely entirely on traditional manual throttle and braking control while the light is active. Continuing to drive does not risk immediate engine damage, but you should address the underlying sensor or software issue promptly to restore full safety capabilities.
Common Causes of the Warning
- Radar Sensor Obstructive Debris: Heavy accumulation of mud, road salt, snow, ice, or bugs directly over the front fascia radar module can completely block the radio frequency waves, triggering an error state.
- Misaligned or Damaged Radar Bracket: Minor front-end impacts, parking lot bumps, or chassis vibrations can physically knock the radar sensor out of its factory alignment plane, rendering the calibration invalid.
- CAN Bus Communication Faults or Low Voltage: Intermittent electrical resistance, corroded wiring harnesses, or a weak 12-volt battery causing voltage drops can disrupt data packets shared between the ADAS module, Body Control Module, and PCM.
How to Diagnose and Reset It
Begin your diagnosis with a thorough physical inspection of the front bumper fascia where the radar transceiver is mounted, ensuring the plastic cover is completely clean and free of physical damage or aftermarket license plate brackets that may interfere with the signal. Next, perform a health check on your vehicle electrical system using a digital multimeter to ensure the alternator is charging properly and the battery maintains a resting voltage above 12.4 volts, as low system voltage frequently sparks false ADAS codes. If the physical components are clear and undamaged, connect an advanced OBD2 diagnostic scanner capable of reading chassis and body codes (C-codes) to access the ADAS or Adaptive Cruise Control module memory. Retrieve the specific Diagnostic Trouble Codes, perform any necessary module resets or sensor recalibrations according to factory service procedures, and clear the codes to extinguish the warning light.