Vehicle Data Hub

Recall 21V-955

Subaru of America, Inc. recalled the 2019 to 2020 Subaru Ascent and 2 other models: Power train (driveline, chain/belt); Power train (automatic transmission, control module (tcm/pcm/tecm)).

At a glance

Campaign number
21V-955
Reported
December 9, 2021
Vehicles affected
198,255 estimated by the manufacturer

Source: NHTSA recall records

What is wrong

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.

The risk

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

The fix

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-[removed]. Subaru's number for this recall is WRK-21.

Notes from the manufacturer

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-[removed] (TTY 1-[removed]), or go to [link removed]

Affected vehicles