Check a VIN

November 11, 2021 Service bulletin

ServiceNews Article

Acura technical service bulletin B21100A for 2020 Acura MDX, 2020-2021 Acura RDX and 2020-2021 Acura TLX and others.

Bulletin number
B21100A
Component
Air bags
Summary
ServiceNews Article - There are several possible causes for the SRS DTC U3000-49 (Internal Failure of the SRS Unit) to be stored. If you can duplicate the DTC, the troubleshooting will take you through the step-by-step process in isolating the faulty component. In most situations, the SRS Unit should be last on the list of components to replace. Here is a quick tip for troubleshooting a faulty seat weight sensor.

Owners of these vehicles have filed 35 complaints in the airbags category.

Vehicles covered

VIN decoder

See the problems and recalls for an exact car

Buying a used Acura MDX?

Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.

Check its history