When the 4WD LOCK mode is deactivated, a shock may be felt as the drive power is delivered entirely to the front wheels. This shock is not a mechanical failure.
CAUTION - Normal road conditions
Do not drive on normal roads for prolonged periods of time with your vehicle locked in the 4WD mode. Driving on normal road with 4WD LOCK Mode (especially, when cornering) may cause mechanical noise or vibration which may damage your power train.
RCV Control Solenoid Valve: Repair procedures
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the RCV control solenoid valve connector.
3.
Measure resistance between the valve terminals 1 and 2.
4.
Check that the resista ...
Warnings and indicators
All warning lights are checked by turning the ignition switch ON (do not start
the engine). Any light that does not illuminate should be checked by an authorized
Kia dealer.
After starting the en ...