Lighting - Auto-Lamps Switch On Too Early/Too Late

SI B 63 11 08
Lights

November 2008
Technical Service

SUBJECT
Automatic Headlamps: Adjust Sensitivity

MODEL
All MOST bus vehicles with option 521 (Rain sensor and auto headlight)

SITUATION
The customer complains that the headlamps switch on too early or too late with the headlamp switch set to the "Automatic" position.

CAUSE
Rain/light sensor sensitivity

GENERAL INFORMATION
The factory default for the rain/light sensor is set to "Sensitive". With this setting, the rain/light sensor is set for optimum operation.

However, if the customer preference is to have the sensor setting either more or less sensitive, this can be adjusted, using the "Conversions" selection in Progman.

Select "Headlight control", and then either "Normal" (reduced sensitivity), "Sensitive" (factory default), or "Highly sensitive" (most sensitive).

Note that because there is no defect in material or workmanship, adjusting the sensor sensitivity is not reimbursable under warranty.

WARRANTY INFORMATION
Information only. Warranty claims to adjust sensor sensitivity should not be made and will not be approved.





Disclaimer