It happens at the worst time - stuck in traffic or a long road trip - when you see that check engine light flick on. Here's why it may keep returning.

GM TechLink has found a wiring issue in GMC Canyon and GMC Sierra 1500 trucks that can make the check engine light stay on and cause false DTC code returns.

General Motors is recalling nearly 600,000 vehicles due to possible engine issues. Here's how to check if your car is affected.