Windshield heater not activating when expected

Bulletin number

LI67.19-P-074543

Component

Electrical system

Summary

Complaint Windshield heater not activating when expected. Note: Windshield heater is only active with the engine running when the defrost button has been activated and outside temperatures are below 41°F (5°C). Cause Stone chippings on the windshield may result in an increased internal resistance of the electric windshield heater. When detecting increased internal resistance, the N22/1 "Air conditioning system" control unit switches off the windshield heater. Remedy Follow steps as prescribed.

Owners of these vehicles have filed 7 complaints in the electrical category.