Sensor False Positives
Notice: Daimler Truck North America (DTNA) does not recommend cleaning or disinfecting a vehicle with products that contain silicone. Silicone-based chemicals and cleaners may disable the sensors.
Harsh chemicals and extremely high temperatures may damage the sensors.
Puncture of or damage to the seal located inside the sensor housing will significantly shorten the sensor life.
Periodic testing is required to verify sensor operation.
The sensors are sensitive to all hydrocarbon vapors.
An alarm may be triggered by cleaning products, paint, polish, lacquer, gasoline, silicone, silicone spray, or other chemicals. The sensors may also detect hydrogen fumes from an overcharged 12V battery.
If the alarm buzzer goes off but it is determined that the high-voltage batteries are not involved in a high-thermal event, check for recent use of chemicals or a battery charger.