My '06 commander showed a message telling me to service my 4x4 system. The low range would not engage. About an hour later, I stopped for gas, and on restart, the message stopped. The lowrange was working again. About 15 minutes later, the "engine" symbol came on steady. The manual states something like a loose gas cap could have caused the engine symbol to come on, and a steady light is not a major problem. Coincedental on the 2 lights?