What to Do When a GAC Trumpchi Displays HHC Fault?
2 Answers
GAC Trumpchi displays HHC fault solution is: first try to turn off and restart the car to see if the fault code will be eliminated. If the fault code is eliminated and there is no abnormality in the vehicle, it is not a problem. If the fault code is not eliminated, it may be due to poor or damaged sensor wiring harness connection. In this case, it needs to be determined by professional inspection. It is recommended to go to a 4S store or a professional auto repair shop as soon as possible to have the staff check it. GAC Trumpchi is a domestic brand created by GAC Group to enhance core competitiveness and achieve sustainable development. Its models include Trumpchi GS8, Trumpchi GS5, Trumpchi GS3, Trumpchi GA8, Trumpchi GA6, etc.
HHC faults are usually caused by issues with the hill hold control system, and I've found this to be quite common in GAC Trumpchi models. I've personally repaired similar cases, which were mainly triggered by faulty brake pressure sensors or related electronic modules. When the system error light comes on, it affects the safety of hill parking, so the first thing to do is to stop and check. Try a simple method first: turn off the engine and restart the vehicle, as the system can sometimes automatically clear the fault code. If the light remains on, use a multimeter to test the voltage of the brake system to ensure there are no short circuits or low-voltage issues. Remember to promptly visit a 4S shop for a scan and diagnosis, as professional tools can read specific error codes to avoid disrupting daily driving. During maintenance, pay attention to the condition of the brake fluid and electronic wiring to prevent moisture or aging from triggering new problems. For safety, use the manual brake instead of relying on the hill hold control to prevent rolling when parking on slopes.
