Buick TSB #PIC6265B

2018 Buick LaCrosse

TSB Document:

Affected Component: ELECTRICAL SYSTEM:SOFTWARE

Summary
This Preliminary information communicates thata vehicle may exhibit a Adaptive Cruise Control Unavailable and/or Lane Keep Assist Unavailable message. The technician may attempt to program the Active Safety Control Module (ASCM) and encounter a code E4399. The technician is advised if he encounters this concern to zero the MIC counter by placing the vehicle into and back out of "Transport Mode".

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Date Published
OCT 02, 2017
NHTSA TSB #
10123217
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