Saturday, August 8, 2026
RecallGazette

Vehicle problems, recalls & safety intelligence

BMW R 1250 GS Adventure 2016–2021technical service bulletin

Bulletin B640420 · NHTSA communication 10182920 · issued Oct 1, 2020

Technical service bulletin
communication type
Equipment
component
2016–2021
model years
13
vehicle entries

Official summary

BUZZING NOISE IS HEARD WHEN AIR CONDITIONING IS DEACTIVATED: A buzzing noise is heard when the air conditioning (A/C) is deactivated while the vehicle is in park or neutral. Prior to turning off the A/C, the system was functional and cooling properly. A/C compressor, or The power supply to the A/C compressor is too low.

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.