Subaru Fuel Pump Failure

On 2021-08-05 10:25:42

In April 2020 Subaru decided that a defect affecting vehicle safety existed and decided to conduct a safety recall (NHTSA Campaign Number 20V-218.) As part of an ongoing investigation, Subaru continued to monitor field data for this problem as well as field data of vehicles outside the recall population.

In addition to continued field data monitoring, Subaru conducted a collection and analysis of healthy parts to compare impeller deformation by lot number, vehicle model, and geographic region. The result of the healthy collection study supported the information outlined in 20V-218. In that report, resin density was determined to more closely correlate with field cases than overall impeller density because the impeller material contains three elements (resin, glass fiber, and calcium carbonate), but only one element (resin) is susceptible to swelling. This improved understanding of density led to the identification of additional material lots which could contribute to the occurrence of the condition in combination with other factors

Subaru has identified 27 unique non-dealer Subaru field reports within the identified population and 8 VOQs from the model year/models listed below. The cumulative warranty claim rate for the identified population is below 1%, but out of caution, Subaru decided to conduct a voluntary safety recall.

Vehicles Affected Include
2019-2020 Subaru Ascent
2018-2019 Subaru BRZ
2018 Subaru Forester
2018-2020 Subaru Impreza
2018-2020 Subaru Legacy
2018-2020 Subaru Outback
2018-2019 Subaru WRX
2018-2019 Toyota 86


Owners receiving notices will be asked to return to their dealers to have the low-pressure fuel pump replaced. Subaru's number for this recall is WRG-21 and the NHTSA campaign number is 21V-587.