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April 1, 2019 Service bulletin

The Preliminary Information communicates that a vehicle may come into the dealer with a SES light on and...

Buick technical service bulletin PIC6306A for 2017-2018 Buick Lacrosse.

Bulletin number
PIC6306A
Component
Engine and engine cooling
Summary
The Preliminary Information communicates that a vehicle may come into the dealer with a SES light on and code P0446 set in Engine Control Module. Dealer is instructed to inspect the EVAP air inlet pipe to the EVAP canister for dust intrusion. If dust intrusion is found dealer is instructed to clean the air inlet pipe and filters and replace the EVAP canister.

Owners of these vehicles have filed 9 complaints in the engine category.

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