Had the GPF light took off 3 times free of charge but they said they would charge if it came on again . Dealer tried to sell me a Kona saying there’s no problems with this model joke really

Is anyone having problems with the particulate filter light on the new Tuscon Tgdi 1.6 petrol , I’ve had mine come on twice in eight weeks . The dealer said I was not doing enough mileage and if it happens again they will charge me . They don’t mention this when they sell u it.