Fuel/Diesel Exhaust Fluid (DEF) Gauge
Physical instruments are listed here in alphabetical order. Some are optional and therefore not found in every vehicle. Digital instruments and gauges are described in their ICU section.
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Fuel Gauge Pointer
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DEF Gauge Pointer
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Low Fuel Warning Lamp
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Low DEF Warning Lamp
Fig. 1, Fuel/DEF Gauge
The fuel and DEF levels can be measured in a dual purpose fuel/DEF level gauge. See Fig..
The diesel fuel and DEF levels are indicated on the gauge. A low fuel warning lamp illuminates amber when the diesel fuel level registers 1/8th of capacity. The low DEF warning lamp illuminates amber when the DEF level reaches 10% of capacity. See Greenhouse Gas Emissions and Fuel Consumption Standards Emissions and Fuel Efficiency for details of the DEF gauge functions.