See also:

Tire pressure loss warning system (Canada only)
Important safety notes While the vehicle is in motion, the tire pressure loss warning system monitors the set tire pressure using the rotational speed of the wheels. This enables the system to ...

Ride & Handling
When I first saw the wheels on my test GLK350 — those 20-inch rims and low-profile all-season tires — I was a little worried about how it would ride on Chicago's crater-filled roads. To my surpris ...

Checking tire pressure electronically
– Make sure that the SmartKey is in position 2 in the ignition lock. – Press the or button on the steering wheel to select the Serv. menu. – Press the or button to select Tire Pressure. ...