What to Do When the China VI High Exhaust Temperature Indicator Light Comes On?
2 Answers
High exhaust temperature indicator light comes on indicates DPF active regeneration and high exhaust temperature. It is necessary to minimize the low-load operation time to increase exhaust temperature and promote regeneration. When the high exhaust temperature indicator light comes on, it means the system is increasing exhaust temperature by burning fuel, and the exhaust temperature can reach above 500℃. Therefore, when this light is on, fire prevention should be taken into consideration. If passing through a hazardous area, promptly reset the regeneration prohibition switch to turn off the DPF regeneration prohibition indicator light, allowing active regeneration to continue.
I've been driving diesel vehicles for over a decade. When the high exhaust temperature warning light comes on in a China VI emission standard vehicle, you must be cautious. This usually indicates excessive exhaust system temperature, possibly due to a clogged DPF filter or sensor malfunction. Remember to immediately pull over to a safe spot, turn off the engine to let it cool down - never continue driving as this may cause engine damage or lead to more expensive repairs. Check for unusual noises or smoke yourself; if present, don't take risks and directly call for a tow truck to a professional repair shop. For regular maintenance, periodic highway driving helps with DPF automatic regeneration, avoiding excessive carbon buildup from prolonged low-speed driving. If the light is on but the vehicle seems fine, try restarting to see if it disappears. If not, you'll need professional diagnosis of the error codes.
