2010 Mercedes GLK-Class Owner's Manual - Page 109

Automatic transmission The current program mode appears in the multifunction display. 107 One-touch gearshifting With the automatic transmission in drive position D, you can limit or extend the gear range using the gear selector lever. Limiting gear range On slippery road surfaces, never downshift in order to obtain braking action. This could result in drive wheel slip and reduced vehicle control. Your vehicle's ABS will not prevent this type of loss of control. X : Program mode indicator You should only change the program mode when the automatic transmission is in park position P. Automatic program mode S will not be stored. When the engine is turned off with the automatic program mode S selected, the automatic transmission will go to the automatic program mode C when the engine is restarted. X Press the program mode selector switch repeatedly until the letter of the desired program mode appears in the multifunction display. Selecting program mode C means: RThe Briefly press the gear selector lever to the left in the D- direction. The automatic transmission will shift into the next lower gear as permitted by the shift program. This action simultaneously limits the gear range of the automatic transmission. i To avoid overrevving the engine when downshifting, the automatic transmission will not shift into a lower gear if the engine's maximum speed would be exceeded. Extending gear range X vehicle starts out more gentle, both forward and reverse, except when driving off with full throttle. and driving stability are improved on icy roads. occur earlier even when you give more gas. The engine then operates at lower revolutions and the wheels are less likely to spin. RTraction RUpshifts Briefly press the gear selector lever to the right in the D+ direction. The automatic transmission will shift into the next higher gear as permitted by the shift program. This action simultaneously extends the gear range of the automatic transmission. Selecting program mode S means that upshifts occur later. i If you press on the accelerator pedal when the engine has reached the revolution limit of the current gear range, the automatic transmission will upshift beyond any gear range limit selected. Canceling gear range limit X Press and hold the gear selector lever to the right in the D+ direction until the gear Z Controls in detail G Warning!