Known problems
What goes wrong on the GM LM2 (3.0L diesel)
major
Diesel Emissions System Faults (DEF, DPF, NOx sensors)
The emissions hardware is the most common source of warning lights and limp mode, especially on trucks driven mostly on short trips.
Typical repair cost
$800 – $4,000
Which of these apply to your GM LM2 (3.0L diesel)?
Your guide shows which apply to the exact car, and what to ask the seller.
Where it was used