Express 2500 V8-6.6L DSL Turbo (2010)
The messages alternate every five seconds until acknowledged by the driver; however, the 89 km/h (55 mph) Max Speed on Restart, remains displayed
on the DIC. The DEF Indicator in the instrument panel is illuminated.
Warning Level 3
Warning level 2 automatically advances to warning level 3 at the next ignition cycle. The driver will hear four chimes on entering warning level 3. The
series of chimes is repeated three times during each ignition cycle. The DIC displays the following messages:
-
Exhaust Fluid Quality Poor
-
See Owner's Manual Now
-
89 km/h (55 mph) Max Speed on Restart
The messages alternate every 5 seconds until acknowledged by the driver; however, the Speed Limited to 89 km/h (55 mph), remains displayed on the
DIC. The DEF Indicator in the instrument panel flashes continuously.
Vehicle speed is limited to 89 km/h (55 mph).
Warning Level 4
Warning Level 4 is triggered when the distance driven since receiving the first DEF Quality Warning message exceeds approximately 1,609 km (1,000
mi). The driver will hear four chimes on entering Warning Level 4. The series of four chimes will repeat three times during each ignition cycle. The DIC
displays the following messages:
-
Exhaust Fluid Quality Poor
-
See Owner's Manual Now
-
89 km/h (55 mph) Max Speed on Restart
-
6 km/h (4 mph) Max Speed Next Fuel Fill
The messages alternate every five seconds until acknowledged by the driver; however, the Speed Limited to 89 km/h (55 mph), and 6 km/h (4 mph) Max
Speed Next Fuel Fill, remain alternately displayed on the DIC. The DEF Indicator in the instrument panel flashes continuously.
Vehicle speed is limited to 89 km/h (55 mph).
Warning Level 5
Warning Level 5 is triggered when the distance traveled is greater than 1,609 km (1,000 mi) and the ECM detects a fuel fill event. The driver will hear
four chimes on entering Warning Level 4. The series of four chimes will repeat every three minutes. The DIC displays the following messages:
-
Exhaust Fluid Quality Poor
-
See Owner's Manual Now
-
6 km/h (4 mph) Max Speed Next Fuel Fill
The messages alternate every five seconds until acknowledged by the driver; however, the Speed Limited to 6 km/h (4 mph), remains displayed on the
DIC. The DEF Indicator in the instrument panel flashes continuously.
Vehicle speed is limited to 6 km/h (4 mph) maximum.
Diesel Exhaust Fluid (DEF) Warning Strategy (Anti-Tampering)
The reductant system supplies the selective catalyst reduction (SCR) stage of the vehicle's exhaust after treatment system with the diesel exhaust fluid
(DEF) required to reduce exhaust oxides of nitrogen (NOx) levels. The engine control module (ECM) continuously monitors the performance of the
reductant system during operation.
When the conditions associated with an attempt to disable reductant system operation are detected, the ECM activates the anti-tampering feature and
presents the driver with a series of prompts and warnings.
Once initiated, anti-tampering warnings grow increasingly more serious as the vehicle continues to be driven. The vehicle's current warning status is
displayed on the scan tool. When tampering is suspected, the normally OFF Reductant System Malfunction Warning Indicator Command will display
Warning Level 1 through Warning Level 5 depending on the number of miles driven, the number of ignition cycles, and if a refueling event was detected.
The series anti-tampering warnings alert the driver that reductant system service is urgently needed.
Warning Level 1
Warning level 1 is triggered when the ECM first detects an abnormal value on a reductant system circuit. The driver information center (DIC) displays
the following messages:
