Campaign 21V-955

Programming error in the Transmission Control Unit (TCU) may allow the clutch to engage before the drive chain is completely clamped

View NHTSA filingAll Subaru campaigns
Defect summary

Subaru of America, Inc. (Subaru) is recalling certain 2019-2020 Ascent, 2020 Legacy and Outback vehicles. A programming error in the Transmission Control Unit (TCU) may allow the clutch to engage before the drive chain is completely clamped.

Consequence

An improperly secured drive chain may slip and break, causing a loss of drive power and increasing the risk of a crash.

Remedy

Dealers will reprogram the TCU, inspect TCU data for chain slip, and visually inspect the chain guide. If evidence of chain slippage or damage is found, the transmission will be replaced. Repairs will be performed free of charge. Owner notification letters were mailed August 19, 2022. This recall includes all vehicles previously recalled under 19V-855. Vehicles previously recalled under 19V-855 will need to have the new remedy performed for this recall once available. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is WRK-21.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

Source: NHTSA ODI recalls file, campaign 21V955000. Text as published by NHTSA.
Vehicles covered

3 product lines are covered

Owner complaints filed with NHTSA about powertrain on these vehicles: 200, of which 4 involved a crash, fire, injury or death. Complaints are not verified by NHTSA.

Vehicles covered by campaign 21V-955
MakeModelModel yearsComplaints on this component
SubaruAscent2019 to 2020146
SubaruLegacy20207
SubaruOutback202047
Source: NHTSA ODI recalls and complaints files. Equipment, tire and child-seat campaigns list products, not vehicles.