Problems with the SmartKey

See also:

Transfer case
General notes The vehicle has permanent all-wheel drive. Power is always transmitted to both axles. For further information on driving off-road, see . Shift ranges WARNING If you do not wai ...

Program selector button
General notes The program selector button allows you to choose between drive programs with different driving characteristics.  In AMG vehicles, drive program E is called drive program C. ...

Declarations of conformity
Vehicle components which receive and/or transmit radio waves USA: "The wireless devices of this vehicle comply with Part 15 of the FCC Rules. Operation is subject to the following two cond ...