From Wikipedia, the free encyclopedia. Acute exacerbation of COPD also known as acute exacerbations of chronic bronchitis (AECB) is a sudden worsening of COPD symptoms (shortness of breath, quantity and color of phlegm) that typically lasts for several days.It may be triggered by an infection with bacteria or viruses or by environmental pollutants.hortness of breath and wheezing are present in many cases. Exacerbations may be accompanied by increased amount of cough and sputum productions, and a change in appearance of sputum. An abrupt worsening in COPD symptoms may cause rupture of the airways in the lungs, which in turn may cause a spontaneous pneumothorax.
Confidence votes 262K. To reset the fuel filter warning light off for the Toyota hilux one must replace the filter that switch the car on and off. They must also click the rest button.
Page 8. ENGINE AIR FILTER. The engine air fIlter warning light, illuminates when the air filter restriction gauge reaches the CHANGE FILTER mark. The vehicle may be driven with the engine air filter warning light illuminated for up to 400 km (250 miles) without damaging the engine or related components.However, the air filter element must be replaced at the earliest opportunity.rake system warning light. To confinn the brake system warning light is functional, it will momentarily illuminate when the ignition is turned to the ON position when the engine is not running, or in a position between ON and START, or by applyjng the parking brake when the ignition is turned to the ON position.