Chida chazida ndi chimango chokhazikitsira zida. Tachometer, odometer, gauge yamafuta, ndi zina zambiri komanso kusintha kosinthana ndi zina zonse zimangoyang'aniridwa pagulu lazida. Makonzedwe azida izi ndiosavuta kuti ogwiritsa ntchito azigwiritsa ntchito, potenga gawo lalikulu.