Yellow or Orange
Diesel Particulate Filter
The DPF is loading up and needs a regeneration drive.
This light indicates that your vehicle's diesel particulate filter is becoming clogged with soot and requires a regeneration cycle to clean itself. It typically means the filter is reaching its capacity and needs exhaust system maintenance to function properly.
What to do
- 01Check your owner's manual for specific driving instructions, often involving a sustained drive at highway speeds.
- 02Avoid turning off the engine until the light disappears or you reach your destination.
- 03Schedule an appointment at Miles Tech Auto if the light stays on or begins flashing.
Other common causes
Faulty exhaust pressure sensors, a failed engine thermostat, low quality fuel, or short city driving trips that prevent natural regeneration.
How we check it
We will perform a diagnostic scan to check for soot accumulation levels and force a manual regeneration if necessary.
Symbols vary by make and model — always confirm in your owner's manual. If the light is red, the car feels different, or the light is blinking, stop and call us before driving further.