GM has issued a service bulletin for a DEF sensor problem fix for the 2020 to 2024 GMC Sierra 1500, GMC Sierra HD, and GMC Yukon involving module recalibration. News Podcast ...

GM has issued a service bulletin about a fix now available for the 2020 through 2024 Chevy Silverado, Chevy Tahoe, and Chevy Suburban vehicles for a DEF sensor.

You've surely heard of brake fluid, fuel, and lots of other liquids needed to run a diesel vehicle. But what's AdBlue fluid?

Our first DEF fill came at 4,481 miles on the odometer, our second at 8,474 miles, and currently we're showing our DEF level sitting at just over -tank with 12,409 miles.

Despite the improvements in getting the fixes made, concerns exist about future availability of replacement sensors for those used in newer trucks and engine families— from model years 2016-2021 ...

During vehicle operation, SCR systems are designed to provide heating for the DEF tank and supply lines. If DEF freezes when the vehicle is shut down, start up and normal operation of the vehicle ...

While there are a few different designs available for the aftermarket, the ’11-and up DEF Tank Skidplate shown here is from T&A Performance ($599 in bare metal, plus shipping).

The tank has a total payload capacity of 4500 gals., 1,200 of which is DEF. Voice your opinion! To join the conversation, and become an exclusive member of FleetOwner, create an account today!