2019 Subaru Ascent · symptom sheet
Engine stalls or loses power while driving
- 36owner reports
- 14,000median miles
- 0involved a crash
Newest report Aug 3, 2026 · checked Oct 2, 2026
276 of the 441 complaints on this car are about the transmission and drivetrain. 36 of those describe stalling.
Tick what matches of 36 reports
Stalling on other Ascent years
No other Ascent model year has enough reports of stalling for a sheet of its own. See every Ascent year.
What this problem usually is
Stalling reports are some of the most alarming on the site. The engine quits while the car is moving, sometimes on a highway and sometimes at a stop. Many owners say it restarted right away and the dealer found no stored code, which is part of why these complaints pile up before anything gets fixed.
What got replaced
Owners who name the part that was replaced mention the battery (9 reports).
Recalls and investigations
7 recalls on the transmission and drivetrain cover the 2019 model year. A recall on the same system isn't always the same failure, so read the defect text.
The ground bolt that secures the ground terminal of the Positive Temperature Coefficient (PTC) heater may have been improperly fastened, which could result in melting of the ground terminal and surrounding components.
A programming error in the Transmission Control Unit (TCU) may allow the clutch to engage before the drive chain is completely clamped.
The low-pressure fuel pump inside the fuel tank may fail.
The low pressure fuel pump may become inoperative.
The transmission hydraulic sensor may inaccurately measure the hydraulic fluid pressure.
The aluminum Positive Crankcase Ventilation (PCV) valve can separate, allowing the separated components to enter the engine, resulting in a loss of power while driving.
The center support bolts for the driveshaft may loosen, possibly resulting in the front portion of the driveshaft disconnecting.
All 9 recalls on the 2019 Subaru Ascent, with the owner complaints on each recalled system
When it happens
The middle half of failures fell between 3,801 and 22,000 miles, from the 21 reports that gave a mileage.
What owners wrote
“I have been asking Subaru to fix the transmission for 2 years now. It seems like itâs going to stall between 20-25 mph and 45-50 mph. There is a torque converter shutter but Iâm told that the car is fine. Subaru corporate has 2 case files for this issue now.”
Filed Aug 15, 2023
Should you keep driving it?
This page can't tell you that. 0 of 36 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Paid for this repair before a recall covered it? How recall reimbursement works
Other problems on this car
- Battery dies or the car will not start 137 reports
- Windshield cracks or distorts 75 reports
- Transmission shudders, slips or shifts hard 40 reports
- Brakes grind, pulse or wear early 26 reports