Maintenance
Hyundai Sonata / Sonata 2011 Owners Manual / Maintenance
See also:
Check Spark Plugs and Ignition System
Inspect your spark plugs and replace them if necessary. Also check all ignition
wiring and components to be sure they are not cracked, worn or damaged in any way. ...
Instrument and controls
1. Panel Brightness Control Knob (Rheostat Switch).
2. 4WD Lock Switch (If installed).
3. Traction Control System (TCS) Switch (If installed) / Electronic Stability
Control (ESC) Switch (If inst ...
Air Conditioning Refrigerant
Check the air conditioning lines and connections for leakage and damage. Check
air conditioning performance according to the relevant shop manual if necessary. ...


