What would it mean if both "service traction control" and "assisted brake service" lights come on at the same time

Hello, Dave here, contributing to RepairPal and providing expert advice since 2010. I do not think that your vehicle was "just cold" - certainly, conditions that your vehicle's components and sensors were observing could be influenced by weather conditions, but voltage and continuity of wiring is not in itself temperature dependent. I will say that it is true that If you have warnings that were on and are now off -- an do not reoccur - that It is reasonable to say that there is no need to troubleshoot further. The warnings you received were from anti-lock brake system sensors and components. If the problem happens again, then yes - testing is needed to find out what is going on. But If it does not reoccur - continue driving normally. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.