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2014 Chevrolet Silverado 2500 HD LT 6.6L MIL Lamp on
Posted to GM Driveability on 1/16/2019 7 Replies

Before changing heater, dash read "Service Exhaust Fluid" 51 miles remain and it still says this, it wont reset. Maxisys says tank is 100% full which it is not, it only has about 3 gallons in the tank, the buttons on the dash too toggle between messages do...

7 Replies Received (View Replies)

  Related Documents & Media  2014 Chevrolet Silverado 2500 HD LT

 
Message Closed w/FIX

car Vehicle Data

2014 Chevrolet Silverado 2500 HD LT

VIN 1GC1KXC85E
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P20B9P21dd-
P21DD
Message Closed w/FIX

car Vehicle Data

2014 Chevrolet Silverado 2500 HD LT

VIN 1GC1KXC85E
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P20B9P21dd-
P21DD