Driving and operating 129Use of the engine braking effect, asopposed to the use of the foot brakewhen driving downhill, can extend thelife of the brakes.Rocking the vehicleRocking the vehicle is onlypermissible if the vehicle is stuck inwater, ice, sand, mud, snow or a dip.Move the selector lever between Dand R in a repeat pattern whileapplying light pressure to theaccelerator pedal when the vehicle isin gear. Do not race the engine andavoid sudden acceleration.If the vehicle cannot be released afterrocking the vehicle several times,your vehicle may need to be towed3 186.ParkingApply the electrical parking brake andengage P.The ignition key can only be removedwhen the selector lever is in positionP.Manual modeMove selector lever out of position Dtowards the left and then forwards orbackwards.< = Shift to a higher gear.] = Shift to a lower gear.Tip selector lever in the appropriatedirection. It then returns to the centreposition.Gearshifting in manual mode can beachieved whilst accelerating. If theengine speed is too low, thetransmission will automatically shift toa lower gear, even in manual mode,to prevent the engine from stalling.If a higher gear is selected whenvehicle speed is too low, or a lowergear when vehicle speed is too high,the shift is not executed.In manual mode, no automaticshifting to a higher gear takes placeat high engine revolutions.Gears can be skipped by moving theselector lever repeatedly at shortintervals.After stopping, 1st gear isautomatically selected. When startingon slippery surfaces, tip selector leverforwards to engage 2nd gear.To move back to position D, moveselector lever back to the right.Electronic drivingprogrammes■ Following a cold start, the operatingtemperature programme increasesengine speed to quickly bring thecatalytic converter to the requiredtemperature.