Mercedes-Benz GL-Class: DSR (Downhill Speed Regulation) - Off-road driving systems - Driving and parking - Mercedes-Benz GL-Class Owner's ManualMercedes-Benz GL-Class: DSR (Downhill Speed Regulation)

4MATIC (permanent four-wheel drive)
4MATIC ensures that all four wheels are permanently driven. Together with ESP® and 4ETS, it improves the traction of your vehicle whenever a drive wheel spins due to insufficient grip. WARNING&n ...

Important safety notes
DSR is an aid to assist you when driving downhill. It keeps the speed of travel at the speed selected on the on-board computer. The steeper the downhill gradient, the greater the DSR braking eff ...

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If a Tire Goes Flat
It is unusual for a tire to blow out while driving, especially if the tires are maintained properly. See Tires  . If air goes out of a tire, it is much more likely to leak out slowly. But if th ...

Tachometer
The tachometer indicates engine speed in revolutions per minute (RPM). Do not rev the engine into the red zone 1 . CAUTION When engine speed approaches the red zone, shift to a higher gea ...

Wheels and Tires
Tires Every new GM vehicle has high-quality tires made by a leading tire manufacturer. See the warranty manual for information regarding the tire warranty and where to get service. For additional ...