Hello. I bought this car second-hand in 2017. Mileage now 40K miles. Nice car and easy to drive. No problems except last December the Auto Transmission red warning light came on when starting from cold, but I drove it (a short 10 mile run) and the gearbox worked ok. The warning light came on (only when starting up, ie not during a drive) randomly a few times over a week or so then all ok until this past weekend when the warning light came on again when I started the car. Any thoughts? What sensor would trigger that warning? I should add that it's a Citigo so I hope you don't mind me posting here but no similar Citigo forum that I can find. We also have a Mii Manual in our family. Great cars!