2019 Subaru Ascent transmission & drivetrain problems

Related recalls

• Recall 21V955000Dec 9, 2021198,255 vehicles
  POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM) · POWER TRAIN:DRIVELINE:CHAIN/BELT

  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.

  Risk: 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.

• Recall 19V855000Dec 2, 201976,842 vehicles
  POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

  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.

• Recall 19V519000Jul 10, 2019166 vehicles
  POWER TRAIN:DRIVELINE:DRIVESHAFT

  Subaru of America, Inc. (Subaru) is recalling certain 2019 Ascent vehicles. The center support bolts for the driveshaft may loosen, possibly resulting in the front portion of the driveshaft disconnecting.

  Risk: If the front end of the driveshaft separates, it can increase the risk of a crash.

  Remedy: Subaru will notify owners, and dealers will replace the driveshaft assembly, including the center support brace, free of charge. The recall began July 26, 2019. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is WUI-94.

What owners say

1. Filed Sep 6, 2026OROther / UnknownSuspensionTransmission & Drivetrain

   Subaru of America has a Bulletin out that changes the front suspension arms for both front ends. The dealership made this correction and now the front end rattles like there are loose parts. Dealership says they don’t hear it. Won’t investigate more unless I pay them a diagnostic fee. If Subaru of America knows this vehicle has a faulty part that causes the calipers to clamp down too hard thus warping the rotors! Dealership & SOA need to advertise this Bulletin as a recall.

   NHTSA complaint #11762427 · source
2. Filed Aug 14, 2026OHTransmission & Drivetrain

   The vehicle has 178k miles on it currently. I had to have a transmission and transfer case replaced at 68k miles. Done by Subaru. At 168k miles I had to have a new front pump in the transmission case replaced. Repair done by Subaru. Now at 178k miles the second replacement transmission has completely failed and needs replaced.

   NHTSA complaint #11756882 · source
3. Filed Aug 6, 2026NYDriver Assistance & Safety TechElectrical SystemTransmission & Drivetrain

   All the safety systems become disabled and check Engine light goes on because transmission fluid is being pumped Out of a faulty secondary pressure sensor part 31878aa020,( defective and replaced with 31878aa021), into the engines wiring at the car computer, transmission computer, and bulkhead connector in fuse box causing all sorts of engine codes. The setting of the engine code closes all the vehicles driver safety systems and changes the dynamic of the drivers driving…

   NHTSA complaint #11755268 · source
4. Filed Aug 3, 2026TXTransmission & Drivetrain

   My 2019 Subaru Ascent Limited had a safety recall that was related to a CVT transmission issue. That safety recall was addressed by Sewell Subaru (Dallas, TX) in January of 2025. This past Wednesday, July 29, I was driving on a state highway on my way to work from my residence. Not even two miles away from my residence, I felt a jerk and a loud "thud". That was followed by loss of power in that the vehicle just was rolling, but no power from the gas. I was able to safely…

   NHTSA complaint #11754594 · source
5. Filed Jul 27, 2026NETransmission & Drivetrain

   Transmission was recalled and supposedly fixed. The fix has now failed and dealer and Subaru are not willing to fix again.

   NHTSA complaint #11753077 · source
6. Filed Jul 16, 2026PATransmission & Drivetrain

   Noticed my car shifting incorrectly since 66,000 miles. At approximately 68,800 miles transmission begin to fail. At a stop sign I pulled out before oncoming traffic with what should have been plenty of time, but transmission failed. It seemed to have had chain slip; completely stopping the car when I was in oncoming traffic. I put the pedal to the floor it caught, and whipped me around the corner. After that it was doing the same thing consistently until I parked it at my…

   NHTSA complaint #11750736 · source
7. Filed Mar 5, 2026COTransmission & Drivetrain

   We have been dealing with issues with this vehicle since 2024. We had 3 open recalls which we took into the closest dealership to us and things were okay for a few months and then started having issues again. We live in a small town and it is hard to get to the dealership so we had a few local mechanics take a look and one had found that the exhuast recall was not installed properly and so he addressed that issue. Things were then okay for a little bit after that and then we…

   NHTSA complaint #11722197 · source
8. Filed Feb 23, 2026TXTransmission & Drivetrain

   Component/System Failed: The vehicle’s CVT transmission and related transmission components. The transmission and associated components have been replaced multiple times by authorized Subaru dealerships. The vehicle is available for inspection upon request. Description of the Failure and Safety Risk: The vehicle has experienced repeated, intermittent transmission malfunctions, including warning lights, loss of power during acceleration, and sudden harsh re-engagement. Most…

   NHTSA complaint #11719891 · source
9. Filed Dec 2, 2025FLTransmission & Drivetrain

   Over the past few months the transmission has started randomly refusing to engage. When entering the expressway, you will press the accelerator, and the engine will rev and the vehicle will not accelerate at all. Then you let off the accelerator, let the engine RPM drop back down to idle, and press again and it will accelerate. This has happened 3 times in 2 months. Subaru is refusing to replace the transmission because their tech cannot personally reproduce the problem on…

   NHTSA complaint #11702574 · source
10. Filed Jul 20, 2025ILTransmission & Drivetrain

    While driving on the highway, my vehicle suddenly lost the ability to accelerate—this is the second time this has happened, with the first incident occurring in June 2022. Each time I bring the car to the dealership, I’m told that because the issue cannot be recreated on the spot, despite codes that are warranted for the QMR to be done they’re unable to inspect or apply the WRK-21 procedure to replace the transmission under warranty. Despite this, my car consistently slips…

    NHTSA complaint #11674836 · source
11. Filed May 16, 2025TXTransmission & Drivetrain

    I purchased the car brand new in 2019. Shortly after purchasing, the transmission started having hesitation and slipping. I took the car back to the Subaru, and they replaced the transmission under warranty. Unfortunately, they replaced it with another full transmission, and very shortly there after, they had to replace it again. Unfortunately, they replaced it with another faulty transmission and now it is at 150,000 miles and needs another transmission. No one offered me…

    NHTSA complaint #11661510 · source
12. Filed Mar 30, 2025VATransmission & Drivetrain

    When trying to maintain highway speeds (65 to 70 MPH) and driving in mountainous terrain of Pennsylvania, Maryland, or New York, the vehicle will shudder as if it is loosing power. The vehicle will rapidly loose speed. No warning code is issued. The only way to solve issue is depress the pedal to increase the RPMs. Took vehicle to dealer and reported that it felt as if the CVT chain was slipping. They said they could not recreate and there was no code.

    NHTSA complaint #11651625 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology