I have a new Mitsubishi L200 series 6 Barbarian. Done less than 500 miles, mixed driving. The auto stop-start is totally unreliable. Green light comes on first start, goes out, may occasionally flash whilst driving. Over a 40-mile trip the stop-start functioned only once. Worked less than half a dozen times since purchase. Dealer says no fault or error codes.
Filed under fault - Asked by Dave Lewis (Portsmouth) - Thu, 23 Jan 2020 13:01
I'm surprised to hear that from a new truck where the battery will be in good condition, but stop-start systems regularly don't work as people expect. The system measures loads of variables before deciding whether the engine will be stopped, including the temperature of the engine and even the outside temperature. If it's cold weather, it may not work at all. If you're using items that are a big electrical drain, it may not operate.
Read our Why won't my car's stop-start system work? feature