
With the fluid level normal, start the engine and keep the vehicle idling. Press and hold the manual regeneration switch below the navigation screen for more than 5 seconds. Once the regeneration process begins, the engine speed will automatically rise to 2500 rpm. At this point, the combination meter will display a text prompt. Wait for 10 to 20 minutes until the stationary exhaust self-cleaning is completed.

I've run a repair shop and helped friends fix many diesel pickup trucks. Great Wall's DPF self-cleaning operation is actually quite straightforward. When the vehicle has been driven for a while, the dashboard will light up the DPF indicator to signal particulate accumulation. At this point, it's best to find an open area to park, avoiding enclosed spaces to prevent exhaust buildup. After warming up the engine for a few minutes, check for a button near the steering wheel or center console—usually labeled 'DPF' or 'Regen' (locations may vary slightly by model). Press it, and the engine RPM will surge with the fan humming loudly—this is normal, indicating high-temperature combustion of impurities. Let it run for 10-20 minutes without shutting off the engine or moving the vehicle. Once completed, the light will turn off. For routine maintenance, driving on highways for over 40 minutes enables automatic cleaning, avoiding short trips that accumulate particulates. Regular oil changes and using low-sulfur diesel can extend DPF lifespan and reduce manual interventions.

I've been driving this Great Wall pickup for three years, and when the DPF light comes on, it can be quite alarming, but the actual operation is super simple. First, park the car in a safe place and let it idle, avoiding urban areas or garages. Start the engine and let it run for two to three minutes to warm up, then look for the DPF switch button on the control panel or dashboard—sometimes it's hidden near the air conditioning knob. Press it, and the system will handle the rest automatically. Don’t panic if the fan noise gets louder during the process; just wait about 15 minutes, and the light will go off. I also make it a habit to take a monthly highway drive to prevent buildup. In winter, when there’s less driving on snowy roads, issues are more likely to arise. If the light comes on, don’t delay, as severe clogging can lead to expensive repairs.

Special attention must be paid to safety during the self-cleaning operation. I've seen incidents almost happen when doing this in a garage. When driving a Great Wall pickup, first choose an open-air parking spot, start the engine to warm it up for a few minutes, then press the DPF button. Stay away from the exhaust pipe throughout the process, as the temperature rises sharply and poses a high risk. Also, avoid smoking or operating other equipment. During regeneration, the engine speed will increase and the fan will operate. Wait until the indicator light turns off normally before shutting down the engine. Frequent light illumination may indicate excessive carbon buildup or fuel issues, so it's advisable to seek professional inspection. During long-distance trips, avoid being too gentle with the throttle. Maintaining a steady speed of 50km/h or above on the highway can assist in the cleaning process.


