Fuel/Diesel Exhaust Fluid (DEF) Gauge

SD DM 04.02.04

The fuel and DEF levels are measured in a dual purpose fuel/DEF gauge. See Fig..

  1. Diesel Fuel Level Indicator

  2. DEF Level Indicator

  3. Low DEF Warning Lamp (amber below 10% DEF)

  4. Low Fuel Warning Lamp (amber at 1/8 tank of fuel)

Fig. 1, Cab Access System, Passenger Side

The diesel fuel level is indicated at the top of the gauge, with a low-fuel warning lamp that illuminates when the diesel fuel level registers 1/8th of capacity.

The DEF level is indicated in the lightbar on the lower portion of the gauge. There is a low DEF level warning lamp that illuminates when the DEF level reaches 10% of capacity. See Chapter 11 for details of the exhaust aftertreatment system.

Note:
Parent topic: Standard Instruments
Document Number: 0000122677
Manual Publication Date: 2025-01-23
Topic Publication Date: 2025-01-23