Lexus UX250h Check Engine Light Activates in Cold or Wet Weather, Dealer Finds No Issues on Lexus UX250h

Some Lexus UX250h owners report experiencing the check engine light activating in cold or wet weather, even when dealers find no specific issues. This activation can be attributed to several factors, such as low oil levels caused by thickened oil in cold temperatures, frozen fuel and fuel lines, and faulty sensors that may malfunction in adverse weather conditions. Additionally, cold weather can strain the battery, leading to underperformance and triggering the check engine light. Owners are advised to monitor the situation closely, ensure regular maintenance checks, and consult a mechanic specializing in Lexus vehicles if the problem persists. Inspecting and potentially replacing worn spark plugs may also be necessary, as they can contribute to the activation of the check engine light. Addressing these concerns promptly is crucial to prevent future issues with the Lexus UX250h.