Land Rover Discovery 2012–2019 — technical service bulletin
Bulletin SSM74404 · NHTSA communication 10160432 · issued Apr 30, 2019
Technical service bulletin
communication type
Engine and Engine Cooling
component
2012–2019
model years
13
vehicle entries
Official summary
Degradation of the primary catalytic converter. The DTC P0420-00 stored in the PCM indicates the primary catalyst is not operating at an optimal level.
Vehicles covered
- 2016 Land Rover Discovery
- 2017 Land Rover Discovery
- 2018 Land Rover Discovery
- 2019 Land Rover Discovery
- 2015 Land Rover Discovery Sport
- 2012 Land Rover Range Rover Evoque
- 2013 Land Rover Range Rover Evoque
- 2014 Land Rover Range Rover Evoque
- 2015 Land Rover Range Rover Evoque
- 2016 Land Rover Range Rover Evoque
- 2017 Land Rover Range Rover Evoque
- 2018 Land Rover Range Rover Evoque
- 2019 Land Rover Range Rover Evoque
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.