GM Authority

Some GMC Terrain Units Need A Fuel Pump Control Module Fix

General Motors has issued a new Service Update, this time for the 2023 GMC Terrain, which may exhibit an issue impacting the ...
GM Authority

Is The 2027 GMC Sierra Bringing Back A Physical Ignition Key?

A newly spotted detail on a prototype raises a rather unexpected question - could the next-gen 2027 GMC Sierra pickup be ...

GM is being probed by the NHTSA for a recall remedy that may not have worked

NHTSA reviews GM L87 6.2L V8 recall fix after 36 engine-failure complaints, raising new risk for 2021-2024 models and GM ...

Feds Opens New Investigation Into GM's 6.2-Liter V-8 Over Owner Claims Recall Fix Didn't Take

Some owners claim that their engines failed even after a recall remedy was performed, NHTSA officials say.
Hosted on MSN

GM executes fog-filled reveal of Formula 1 test vehicle at new HQ

General Motors used its new digs on Tuesday, Jan. 13, to execute a dramatic, fog-filled reveal of Cadillac's special edition Formula 1 racing livery test vehicle just as the brand prepares to enter ...
Hosted on MSN

China’s first homegrown 1,200‑kW turboprop aircraft engine aces cold ignition test

A 1,200-kilowatt-class turboprop engine developed in China has successfully completed its ignition test conducted in Harbin, Heilongjiang Province. This achievement puts China on the path of ...
Hot Rod

How Accurate Are Wideband O2 Sensors? A Real-World Lambda Comparison Test

We tested popular wideband O₂ controllers against lab-grade equipment to see how accurate their lambda readings really are ...