12 Warning lights ›  Warning lights overview Symbol Meaning Rear fog light switched on » page 37. ABS faulty » page 109. Tyre pressure control system faul- ty » page 133. Tyre pressure change » page 128, » page 132. Illuminates  - Power assisted steering faulty » page 29. Flashing  - Steering lock not un- locked » page 29. Flashing  - Steering lock faul- ty » page 29. KESSY - starting prob- lem » page 101. KESSY - no key found » page 23. Petrol engine control faul- ty » page 120. Emission control system faul- ty » page 120. Front passenger airbag switched on » page 36. flashes  together with   - Key switch for airbag deactivation is faul- ty » page 36. Front passenger airbag switched off » page 36. Airbag system faulty » page 35. Illuminates  for 4 seconds  and then flashes  - Airbag or belt tensioner de- activated with diagnostic de- vice » page 35. ASR deactivated » page 109. Illuminates  - ESC or ASR faul- ty » page 109. Flashing  - ESC or ASR is engag- ed » page 108. Turn signal light, left » page 37, » page 38. Turn signal light, right » page 37, » page 38. Trailer turn signal light » page 38. Symbol Meaning Front fog lights switched on » page 37. The selector lever is locked » page 103. ACC controls the driving speed » page 112. The cruise control system controls the driving speed » page 111. High beam or flasher activa- ted » page 37. Rear seat belt not fas- tened » page 30. A rear seat belt is fas- tened » page 30. Low outside tempera- ture » page 49. High beam Assist System switched on » page 39. Bulb in the vehicle exterior lights failed » page 38. Charging of the 12-volt vehicle bat- tery » page 120, » page 123, » page  123. Engine oil pressure too low » page 119. Engine oil level too high  or  engine oil level sensor impaired » page 119. Engine oil level too low » page 119. Coolant temperature too high » page 120. Coolant level is too low » page 119. Along with   - Engine fault » page 123. Windscreen washer fluid level too low » page 44. Clogged particle filter » page 120. Automatic gearbox overhea- ted » page 104, » page 104. Automatic gearbox im- paired » page 104, » page 104. Service event » page 147. Engine was switched off automati- cally by START-STOP » page 102.