Acura RDX 2019–2020 — technical service bulletin
Bulletin ONLF9O04232021 · NHTSA communication 10191000 · issued Apr 23, 2021
Technical service bulletin
communication type
Electrical System
component
2019–2020
model years
2
vehicle entries
Official summary
"Owner Notification Letter - Please be advised that there was a printing error in a letter you recently received regarding the above-mentioned warranty extension. Acura is adding an additional 2,000 miles to this extension. Please note that the warranty coverage for the MOST bus network on your vehicle is 6 years or 74,000 miles from the original date of purchase, whichever comes first. This notification replaces the previous letter you may have received. We apologize for any inconvenience this error may have caused you. What is the reason for this Warranty Extension? On some 2019 RDX models,
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.