Audi A3 Cabriolet 2015–2016 — technical service bulletin
Bulletin A551536 2040628- · NHTSA communication 10120036 · issued May 11, 2015
Technical service bulletin
communication type
Latches/locks/linkages
component
2015–2016
model years
2
vehicle entries
Official summary
Customer complains that the trunk lid open warning is displayed in the instrument cluster even though the trunk is closed. No DTCs are stored. In certain driving conditions, a reverse current may be sent from the halogen trunk light if it is missing its protective diode. Because the trunk light and the trunk lock switch are on the same circuit, the reverse current falsely triggers the trunk open warning. Unlike halogen trunk lights, LED trunk lights are not produced with protective diodes.
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.