Chevrolet Low Cab Forward 6.7L Diesel Engine 6500XD (GMNA-Localizing-
U.S.-15749874) - 2022 - CRC - 12/1/21
64
Instruments and Controls
Checking PM Level Light
CHECKING PM LEVEL
In the case of performing the "Selectable"
regeneration, this light comes on when the
DPF switch is kept held down. While this
light is ON, the system is checking whether
or not the "Selectable" regeneration is
possible. If the "Selectable" regeneration is
possible, the light changes to the selectable
(switch) regeneration required warning light.
If the indication does not change to the
selectable (switch) regeneration required
warning light, the "Selectable" regeneration
is not possible.
Exhaust System Warning Light
EXH. SYSTEM
This light comes on when the SCR system
detects a malfunction or incorrect DEF. SCR
system will turn on other indicator lights
and reduce engine power in progressive
stages to encourage you to have the
malfunction corrected. Continuing to drive
for too long after this light turns on will
eventually result in a severe vehicle speed
limitation. If this light turns on, promptly
have the vehicle inspected and serviced at
your dealer. See
Refill Diesel Exhaust Fluid (DEF) Warning
Light
REFILL DEF
This message displays and a warning light
appears when the DEF tank is almost empty.
Add DEF as soon as possible.
Engine power will be reduced and vehicle
speed will be limited when this light is
activated. Failure to promptly refill the DEF
tank will result in a severe vehicle speed
limitation. See
.
When DIC ERROR is Displayed
ERROR
If the system has not yet been able to
access maintenance data, ERROR is shown
on the DIC.
If ERROR does not change automatically to a
distance or other maintenance indication,
have your vehicle serviced at your dealer.
Maintenance Data Indicator Lights
Maintenance data indicator lights appear on
the DIC when each maintenance item is
selected or when the next change or service
interval of the item is near or has been
reached.
The distance or time shown is the remaining
or excess of them to / from the change or
service timing. The positive distance or time
shows the remaining of that and the
negative distance or time shows the excess
of that. For the items listed below, the
displayed color will change from green to
amber when remaining distance is below
1 600 km (1,000 mi) and the screen is
selected.
These screens are also displayed when the
engine control switch turns to the ON
position after above notification timing. The
message remains on the display until the
DIC selector is pressed once or the vehicle is
started.
The maintenance data function indicates the
distance remaining before the next
scheduled maintenance. Scheduled
maintenance time is approaching when the
display turns from green to amber. Have the
vehicle checked and serviced at your dealer
as soon as possible.
The vehicle needs to be maintained more
often if it is driven in severe conditions.
