AskPatty Certified Female Friendly Logo
My check engine light and VSC Trac lights came on at the same time and stay on. What is the possible problem here?

Answers from the Automotive Experts

Brandy Schaffels, Editor at, Inc. You can have the diagnostic codes scanned at your dealership, or a local auto parts store to get more information about the problem. Typical causes for these can include anything from a loose gas cap to evaporative emission system, evaporative canister or hose not connected, vacuum leak at engine, defective solenoid, or a vacuum leak in the engine. For additional assistance, please find an AskPatty Certified Repair Shop at and they can help you diagnose and repair the problem.

Contribute to this question:

blog comments powered by Disqus

Related Toyota Sequoia FAQs

Need Car Advice?

Ask The Experts!

Looking for a New or Used Car?

Search for our Certified Female Friendly® Car Buying Marketplace locations

Help Our Charities