Some units of the GMC Sierra 1500, Yukon, and Yukon XL trucks and SUVs need an ECM software update to fix a glitch with the ...

Some units of the Chevy Silverado 1500, Tahoe, and Suburban trucks and SUVs need an ECM software update to fix a glitch with the check engine light.

Changing the oil is the most common maintenance you'll have to do on your car, but what happens when the check engine light comes on afterward?

Tim Shick, vice-president of sales support with Navistar, said most of the problems could be traced to the MaxxForce engine’s turbo air control valve, which connects directly to the engine’s ...