In the above vehicles, the turn signal failure check may be affected by a "software error".
The problem affects the software of the body control module - BCM. This may result in the driver information system not being able to detect or indicate a possible failure of the turn signals.
The vehicle manufacturer has already recognized the problem and taken corrective action as part of a service action by which the BCM software will be updated.
It is assumed that not all vehicles will have undergone the service action for various reasons.
Please note this information in the wake of complaints regarding the turn signal failure check.
Important safety note
Technical information and practical tips have been compiled by HELLA in order to provide professional support to vehicle workshops in their day-to-day work. The information provided on this website is intended for use by suitably qualified personnel only.
Reprinting, distribution, reproduction, exploitation in any form or disclosure of the contents of this document, even in part, is prohibited without our express, written approval and indication of the source. The schematic illustrations, pictures and descriptions serve only for the purposes of explanation and representation of the instructions and cannot be used as a basis for installation or assembly work. All rights reserved.
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