Knowledge Base Article
OnStar Services Help: Vehicle Diagnostics
What are Vehicle Diagnostics?
Vehicle Diagnostics deliver vehicle health updates and reassurance while you’re out on the road. Including an easy-to-read monthly diagnostics report, Dealer Maintenan...
Updated 7 months ago
Version 4.0Advisor_Jack
8 days agoModerator
Our team regrets to learn that you've been encountering emissions, stalling, and power concerns with the GM vehicle that you love and depend on, @Jetblack. We take comments such as these very seriously and would appreciate the opportunity to learn more about this situation and further assess how we may best be able to assist. With your safety being our top priority, please send us a private message to OnStar_Support with more details at your earliest convenience. You only need to select the envelope icon at the top of your screen to begin drafting this message. We hope to hear from you again very soon.