LTZ 2015 Used Automatic Gasoline mileage: 115 KM Peace, mercy, and blessings of God be upon you. Impala starter. Original LTZ GM. The sale is working and its affairs are good, but there is a small note. Sometimes it doesn't engage. This happens very rarely. I had it checked, and they said it needs a carbon brush, but it's for sale to the highest bidder.