Check engine light, sensors (includes O2 or oxygen sensor), emission control devices (includes EGR), engine computer, engine computer, fuel cap, fuel gauge/sender, fuel injection system, fuel pump, fuel leaks, stalling or hesitation.
What Owners Say
"I've had three recalls on emissions-related items since purchase. One required reprogramming the emissions software. Before that was done, fuel mileage was very poor and diesel exhaust fluid use was extreme."Robert N., CO (2017 GMC Sierra 2500HD SLT 6.6-L V8 diesel)
"Following a routine service visit that included a recall for the emission system, I got a check engine light the dealer couldn't diagnose on a return visit. If I don't go to the dealer as soon as these appear, they may lead to excessive regeneration cycles and DEF usage, and the fuel mileage will drop into the single digits."Anonymous, CO (2017 GMC Sierra 2500HD SLT 6.6-L V8 diesel)
"Recall from GM for correction"Anonymous, (2017 GMC Sierra 2500HD Denali 6.6-L V8 diesel)
"Covered by warrantee. Sensor replacement"Roger J., MT (2017 GMC Sierra 2500HD SLE 6.6-L V8 diesel)
"Recalled for diesel particulate sensor. Dealer handled it with no issues."Robert N., CO (2017 GMC Sierra 2500HD SLT 6.6-L V8 diesel)