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Subaru Ascent Recall 19V855: Transmission Sensor Can Cause Sudden Loss of Drive Power

NHTSA campaign 19V855, reported December 2, 2019, 76,842 vehicles potentially affected.

What this recall means for you

The transmission hydraulic sensor may read fluid pressure inaccurately. If it reads pressure higher than the actual level, hydraulic pressure drops, and the transmission drive chain may lose proper tension. This can cause a loss of drive power and an increased risk of a crash.

Subaru will notify owners. Dealers will reprogram the transmission control unit, and the hydraulic sensor harness will be replaced on vehicles with certain stored diagnostic trouble codes. Any vehicle confirmed to have experienced low drive chain tension will have its transmission assembly replaced. All repairs are free of charge.

If you own a 2019 Subaru Ascent, check whether your vehicle has open recalls using your VIN, and contact Subaru customer service at 1-844-373-6614 with recall number WUV-07 to arrange the free repair at an authorized dealer.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 19V855Subaru of America, Inc.
Component
POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
Problem
Subaru of America, Inc. (Subaru) is recalling certain 2019 Ascent vehicles. The transmission hydraulic sensor may inaccurately measure the hydraulic fluid pressure.
Risk
If the fluid pressure is measured higher than its actual value, the hydraulic pressure will be reduced. If this occurs, the transmission drive chain may not have the proper tension, resulting in a loss of drive power and an increased risk of a crash.
Remedy
Subaru will notify owners, and dealers will reprogram the transmission control unit. The hydraulic sensor harness will be replaced on vehicles with certain stored diagnostic trouble codes. In addition, any vehicle confirmed to have experienced low drive chain tension will have the transmission assembly will be replaced. All repairs will be free of charge. The recall began January 31, 2020. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is WUV-07.
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.safercar.gov.

Affected vehicles

Subaru Ascent2019