I just check my lights in either glass window reflections or paint reflections from parked cars depending on how and where Iām parked.
The only car that needed the engine oil checked regularly was our second car, a 12 year old Opel Corsa. All other cars kept their fluid and just needed the oil changed at the regular intervals.
My 2000 model Audi actually has a indicator light on the dash that only comes in when the stop lamp is not coming on, but only when the brake pedal is pressed.