Buick Encore GX 2020–2022 — technical service bulletin
Bulletin PIC6446A · NHTSA communication 10204451 · issued Nov 15, 2021
Technical service bulletin
communication type
Parking Brake
component
2020–2022
model years
5
vehicle entries
Official summary
This Preliminary information communicates to the dealer if the lane keep assist and forward collision alert are inoperative, both indicators may be flashing on and off while driving. When pressing button to turn on the lane keep assist they receive a message stating the system is not available. If the above conditions are met to verify that all of the tires are the correct size as per vehicle build. If an incorrect tire side if found on the vehicle it will cause a wheel speed discrepancy on straight road travel that will disable all driver assistance (Front Camera Module) systems relying on wh
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.