Hyundai IONIQ Electric 2016–2019 — technical service bulletin
Bulletin 20-BR-001H · NHTSA communication 10172147 · issued Feb 12, 2020
Technical service bulletin
communication type
Service Brakes, Hydraulic
component
2016–2019
model years
16
vehicle entries
Official summary
This bulletin describes the procedure to properly bleed the brakes on Sonata HEV/PHEV (LF) and Ioniq EV/HEV/PHEV (AE) vehicles. This procedure applies when any air is introduced into the Active Hydraulic Boost (AHB) system, which consists of the pressure supply unit (PSU), and the integrated brake actuation unit (IBAU). Improper bleeding of the brake system can result in the presence of air, which may reduce braking effectiveness.
Vehicles covered
- 2017 Hyundai IONIQ Electric
- 2018 Hyundai IONIQ Electric
- 2019 Hyundai IONIQ Electric
- 2017 Hyundai IONIQ Hybrid
- 2018 Hyundai IONIQ Hybrid
- 2019 Hyundai IONIQ Hybrid
- 2018 Hyundai IONIQ Plug-In Hybrid
- 2019 Hyundai IONIQ Plug-In Hybrid
- 2016 Hyundai Sonata Hybrid
- 2017 Hyundai Sonata Hybrid
- 2018 Hyundai Sonata Hybrid
- 2019 Hyundai Sonata Hybrid
- 2016 Hyundai Sonata Plug-In Hybrid
- 2017 Hyundai Sonata Plug-In Hybrid
- 2018 Hyundai Sonata Plug-In Hybrid
- 2019 Hyundai Sonata Plug-In Hybrid
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.