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.

Gm High Tech Performance tech article on a LS2 computer reprogrammer. Only at www.gmhightechperformance.com, the official site for GM High-Tech Performance Magazine.

After high warranty claims on several models with four-cylinder engines, GM will reprogram software to make oil change warning lights go on sooner.