I am reporting a safety issue with my 2019 Subaru Legacy that hesitates and nearly stalls when accelerating from a stop and is now undriveable due to stalling and shaking. I bought the car new from AutoNation Subaru Carlsbad in 2019. It has about 65,000 miles and I have driven it less than 2,000 miles since its last dealer visit in August 2025. Since around August 2025, the car has intermittently lost power under light acceleration from a stop or low speed, especially while pulling into or through intersections. Pressing the accelerator sometimes produces very little power, the engine feels like it may stall, and traffic behind me must brake or go around me, creating a risk of a rear‑end collision in intersections. In August 2025 I took the car to AutoNation Subaru Carlsbad and reported that the symptoms seemed like a fuel pump problem (my independent mechanic agreed). The dealer kept the car for about two weeks, experienced the hard‑starting/turn‑over issue, but did not test or replace the fuel pump. They performed other services, charged me $1,956.21, and returned the vehicle without fixing the safety issue, even though they later acknowledged the fuel pump is covered under an extended warranty. One day after picking the car up, the same hesitation and loss of power recurred in an intersection. On November 26, 2025, the car again became disabled: it cranks, briefly starts roughly, shakes, and then stalls, and will not stay running. I believe this is a defective low‑pressure fuel pump or related fuel system component, similar to known Subaru fuel pump defects that can cause stalling and loss of power. No crash or injuries yet, but there have been near‑misses due to unexpected loss of power in traffic.
Subaru Legacy hesitation problems
67 of the 3,184 owner complaints about the Subaru Legacy describe hesitation when accelerating, most of them for the 1993 model year.
- owner complaints
- 67
- worst model year
- 1993
- typical mileage
- 50,000
By model year
Often reported together
Stalling 16Check engine light 5Loss of power 3Jerking 3Knocking 3Transmission failure 2Sudden acceleration 2Fuel pump 2
Trouble codes mentioned
P0133 1
What owners say
The contact owns a 2014 Subaru Legacy. The contact stated that the vehicle hesitated before accelerating. The contact stated that there was a lag in the vehicle while driving and attempting to accelerate above 65 MPH. The contact stated that the vehicle failed to start immediately, and several attempts were needed to start the vehicle. The failure was intermittent; however, the failure was persistent while using the remote start feature. The vehicle was taken to the dealer and the contact was informed that the failure might be related to the federal safety agency Campaign Numbers: 19V297000 (Electrical System) and 13V336000 (Power Train); however, the VIN was not included in the recalls. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 50,000.
The contact’s wife owns a 2010 Subaru Legacy. The contact stated that while driving at undisclosed speeds, the vehicle hesitated and stalled. The contact was able to restart the vehicle. No warning light was illuminated. The vehicle was taken to the dealer where it was diagnosed that the torque converter had failed and needed to be replaced. The vehicle was not repaired. The manufacture was notified of the failure and the contact was informed that the warranty had expired but no further assistance was provided. The failure mileage was approximately 179,000.
CVT transmission issues persist beyond the limited warranty extension that has now expired from Subaru. Vehicle RPMs regularly drop from 1000 to 500 when coming to a stop, causing engine to knock as it tries to stall. Vehicle then occasionally hesitates when attempting to move under power. Knocking and near stalling occasionally results in a sensation of vehicle being hit from behind while stopped with vehicle in drive and brakes applied.
Car was sometimes difficult to start, other times it would stall/hesitate when in motion on city street. Discovered to be caused by aged/worn fuel pump causing overcurrent draw that fails to blow fuse causing meltdown in wiring harness connector where pigtail from pump connects to the chassis side of the wiring harness. Heat/spark potential is created in close proximity to fuel tank that has many reported cases of fuel filler neck rusting off and leaking fuel. A quick google search reveals that a number of people, with photos, have experienced this failure. Photo provided is from internet but the result is the same.
Acceleration hesitates or stutters when slowly accelerating, like from a stop in a neighborhood. 2018 legacy 3.6r has done this since purchased in april 2019.
Vehicle stalls and hesitates from completes and shudders when coming to a stop usually at intersections. Contributing factor is torque converter and possibly valve body. Known safety issue to subaru that is no longer covered by warrenty.
Tl* the contact owns a 2012 subaru legacy. When approaching a traffic light and depressing the brake pedal, the vehicle hesitated and stalled. Multiple unknown warning indicators illuminated. When the contact depressed the accelerator pedal, the vehicle failed to move forward. The contact shifted into park and restarted the vehicle. The contact was able to drive to her destination. The contact called garavel subaru (located at 10 tindall ave, norwalk, ct 06851, (203) 642-0620) and scheduled an appointment at a later time. The vehicle was not diagnosed or repaired. The manufacturer was not notified. The failure mileage was 120,000.
My car hesitates and turns off sometimes when slowing down at a stop or red light, rpms fluctuate as I brake or accelerate, my brake light is on solid and I get a at oil temp light flashing and then I can't use my paddleshifters at all, car sounds highly rev'd but doesn't go as fast! Please help as this is a safety hazard, I drive on california freeways everyday and this is a danger to my family when commuting.
Torque converter problem: I went to bob baker subaru carlsbad, ca this 12:10pm, 06/04/18. I told the services guy that my engine shut off after step on brakes at low speed. I researched and downloaded the design problem notice from subaru, and he said the need to do more testing on my vehicle. I was waiting until 5pm and he finally told me that was it. I was represented the notice that came from subaru company. Why he was still hesitate not to fix immediately after I presented the notice. I believe that they had a lot of customers complaint before??
Related recalls
Power train: automatic transmission: park/neutral start interlock switch
- What is wrong
- Subaru of America, Inc. is recalling certain model year 2021 Crosstrek, 2022 Forester, 2021-2023 Legacy, and Outback vehicles. An insufficient weld may allow water to enter the inhibitor switch, causing it to fail.
- Risk
- An inoperative inhibitor switch may prevent the reverse lights from illuminating and the rearview camera image from displaying, increasing the risk of a crash.
- Remedy
- Dealers will replace the inhibitor switch, free of charge. Owner notification letters were mailed January 8, 2024. Owners may contact Subaru customer service at 1‑800‑782‑2783. Subaru's number for this recall is WRQ-23.
Recall number 23V755000 · Recall details
Power train: driveline: driveshaft
- What is wrong
- Subaru of America, Inc. (Subaru) is recalling certain 2023 Outback, Legacy, Ascent, and Impreza vehicles. The center support bolts for the driveshaft may loosen, resulting in the disconnection of the front end of the driveshaft.
- Risk
- Separation of the front end of the driveshaft increases the risk of a crash.
- Remedy
- Dealers will clean the bolt mounting surfaces of the center support brace and install new bolts, free of charge. Owner notification letters were mailed November 20, 2023. Owners may contact Subaru's customer service at 1‑844‑373‑6614. Subaru's number for this recall is WRN-23.
Recall number 23V647000 · Recall details
Power train: driveline: chain/belt
- What is wrong
- Subaru of America, Inc. (Subaru) is recalling certain 2020-2021 Outback and Legacy 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 are expected to be mailed August 24, 2022. Owners may contact Subaru's customer service at 1‑844‑373‑6614. Subaru's number for this recall is WRK-22. This recall is an expansion of previous recall number 21V‑955.
Recall number 22V485000 · Recall details
Power train: automatic transmission: control module (TCM/PCM/tecm)
- 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.
- 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 number 21V955000 · Recall details
Power train: driveline: differential unit
- What is wrong
- Subaru of America, Inc. (Subaru) is recalling certain model year 2016 Legacy vehicles manufactured October 24, 2015, to November 16, 2015, and Outback vehicles manufactured October 24, 2015, to November 17, 2015. Due to the improper tightening of the securing nuts, the drive shaft may separate from the rear differential.
- Risk
- If the drive shaft detaches from the rear differential, it may strike the fuel tank and result in a fuel leak, increasing the risk of a fire.
- Remedy
- Subaru has notified owners, and dealers will inspect the fastening nuts, and tighten or replace them, as necessary, free of charge. The recall began on December 10, 2015. Owners may contact Subaru customer service at 1‑856‑488‑8500. Subaru's number for this recall is WQV-57.
Recall number 15V794000 · Recall details
Power train: driveline: driveshaft
- What is wrong
- Subaru of America, Inc. (Subaru) is recalling certain 2015 and 2016 model year Subaru Legacy 4-Door and Outback vehicles manufactured July 3, 2015, to July 27, 2015. Transmission oil may leak from a deformed seal cap on the propeller shaft yoke.
- Risk
- If the transmission oil leaks onto the exhaust pipe, there is a possible risk of fire.
- Remedy
- Subaru will notify owners, and dealers will replace the propeller shaft, free of charge. The recall began on August 28, 2015. Owners may contact 1‑800‑782‑2783. Subaru's number for this recall is WQU-56.
Recall number 15V502000 · Recall details
Power train: automatic transmission
- What is wrong
- Subaru of America is recalling certain model year 2014 Legacy 3.6R and Outback 3.6R and 2013 Tribeca vehicles manufactured June 12, 2013, through June 28, 2013 and equipped with 5-speed automatic transmissions. In the affected vehicles, the parking rod may come loose inside the automatic transmission.
- Risk
- As a result of the parking rod detaching, the transmission may not be able to be moved from the "park" position preventing the vehicle from being moved or driven. Furthermore, even with the transmission shifted into the 'park' position, the parking mechanism may not engage, and the vehicle may roll away while in the "park" position, increasing the risk of a crash.
- Remedy
- Subaru will notify owners, and dealers will replace the transmission, free of charge. The recall began during August 2013. Owners may contact Subaru at 1‑800‑782‑2783. Subaru's recall number is WQJ-46.
Recall number 13V336000 · Recall details
Power train: manual transmission
- What is wrong
- Subaru is recalling certain model year 2010 and 2011 outback and legacy passenger vehicles manufactured from april 28 through june 23, 2010. Due to a programming error, a lubrication hole within the 6-speed manual transmission was omitted.
- Risk
- If the transmission gears are not properly lubricated, a groaning sound may begin to develop alerting the driver of a problem. If the sound is ignored and no action is taken, the gears will eventually break and this condition will lead to vehicle power loss, possibly resulting in a crash.
- Remedy
- Subaru will notify owners and dealers will repair the vehicles by drilling an oil lubrication hole and, if necessary, replace the internal parts with new ones free of charge. The safety recall began on july 28, 2010. Owners may contact subaru at 1‑800‑782‑2783.
Recall number 10V326000 · Recall details
Power train: automatic transmission
- What is wrong
- Certain sport utility and passenger vehicles equipped with automatic transmissions were produced with an improperly manufactured transmission parking rod. When the transmission selector lever is placed in the "p" (park) position, the transmission park mechanism, that is intended to hold your vehicle, may not engage.
- Risk
- The vehicle could then move/roll without prior warning, increasing the risk of a crash.
- Remedy
- Dealers will replace the automatic transmission parking rod assembly. Owner notification january 8, 2003. An interim owner notification will be sent during november 2002. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact subaru at 1‑800‑782‑2783.
Recall number 02V282000 · Recall details
Power train: driveline: center support bearing
- What is wrong
- Vehicle description: sedan l model passenger vehicles. Anti-rust coating was incorrectly applied to the transverse link mounting surface of the vehicle body. Over time the coating shrinks, causing a torque decrease of the bolt that secures the transverse link bracket to the vehicle body.
- Risk
- This can result in loosening of the bracket and subsequent separation of the transverse link from the vehicle frame.
- Remedy
- Dealers will inspect the vehicles and, if necessary, remove the anti-rust coating under the mounting location of the left transverve link mounting bracket bolt and retorque the mounting bolt to the required torque.
Recall number 99V249000 · Recall details
Questions about the Subaru Legacy hesitation
Which Subaru Legacy years have hesitation when accelerating problems?
The model years with the most reports are 1993 (9 complaints), 1999 (7 complaints) and 2001 (7 complaints).
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