The phrase "main dials" refers to the most important or essential controls on a device or instrument. These dials usually allow you to adjust or set the most critical settings or parameters. Full definition
On the tech side there's what Chrysler claims to be the industry's largest, 8.4 - inch touch - screen at centre - IP (guess they don't count the Tesla), and the corporate 7 - inch multi-function display takes up its place between the «watch - inspired» main dials in the instrument binnacle. (autofile.ca)
Ahead of the driver is a flat - bottomed, multi-function steering wheel and a contemporary instrument binnacle with main dials that glow red or blue depending on the driving mode. (autocar.co.uk)
The large main dials, equally large main buttons on the fascia and simple to understand ventilation controls are a welcome reminder of what Mercedes is good at. (theaa.com)