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May 30, 2018 Service bulletin

Exterior lighting: fog lights

Buick technical service bulletin PIC5964B for 2014-2016 Buick Lacrosse.

Bulletin number
PIC5964B
Component
Exterior lighting: fog lights
Summary
This Preliminary Information communication advises the technician how to determine if a vehicle is equipped with fog lights. Technician will need to check the Regular Production Option Code list. If the Regular Production Option Code has T3U it is equipped with fog lights, if the Regular Production Option Code is T4A the vehicle is equipped with day time running lights.

Owners of these vehicles have filed 10 complaints in the lights category.

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