The diesel particulate filter is hardy, but it's not invulnerable. Here's how it gets clogged, how to regenerate it, and what can go sideways in the process.

The diesel particulate filter is hardy, but it's not invulnerable. Here's how it gets clogged, how to regenerate it, and what can go sideways in the process.

General Motors has released a fix to address an issue related to the diesel particulate sensor in certain examples of the Cadillac XT4 luxury crossover.