This bulletin applies to a fuel control supply issue for 2016 and beyond Volvo XC60 and 2017 and beyond V90 and V90cc vehicles. The MIL may be on accompanied by chimes. DTC P050B00 may be found in the ECM, with no drivability issues.
A new engine management software is available from 2019w24. Perform an upgrade of the software according to TJ31543.
The VST operation number for software control module downloading is 36004-2.