2024 Subaru Ascent Engine Problems
- Complaints
- 2about this part
- Share
- 4%of 51 total for the year
- Median mileage
- —not reported
- Trend
- Too newThis model year is less than 4 years old, so a trend is not meaningful yet.
NHTSA recorded 2 complaints about the engine of the 2024 Subaru Ascent, 4% of the 51 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“My vehicle has lost eyesight too many times while am driving on high way so steering wheel locked, adater,cruise control sign appears together .just a second my family had almost died due to vacation time in august,2025.I cant believe that is brand new Subaru Ascent touring 2024 I purchased from march ,2024. …”
NHTSA complaint #11685769, filed 2025-09“While pulling up to a drive thru window the vehicle shuddered and the engine shut off. I lost all power steering and had to come to a stop, shift into park, then restart the engine. No check engine lights or warnings illuminated. There were no status messages to indicate what caused it to shut off. Also the driver side mirror shakes a lot, just like all the other reports say.”
NHTSA complaint #11740740, filed 2026-05Related service bulletins
- 11037946Sep 29, 2026This Bulletin provides a diagnostic procedure for customer concerns about hesitation, reduced acceleration, or lack of power when driving uphill or under heavy engine load.
- 11036811Aug 20, 2026This service bulletin outlines the diagnostic and repair procedure for white smoke emitted from the exhaust after startup. This is an revised version of the original bulletin.
- 11034269Jun 30, 2026This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components…
- 11034264Jun 26, 2026This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components…
- 11034257Jun 23, 2026This bulletin outlines the diagnostic and repair procedure for white smoke emitted from the exhaust after startup.
- 11034243Jun 3, 2026This bulletin announces the design change made to the exhaust manifold flange nut material that has been changed from stainless steel to medium carbon steel. This change also…
- 11034237Jun 1, 2026"This bulletin provides a new diagnostic procedure for vehicles equipped with a Denso CP 1, 1.5 and 2.5 head units to provide an enhanced version of the troubleshooting steps for…
- 11033065May 13, 2026This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components…
- 11033051May 1, 2026This bulletin announces the diagnostic procedures to be used when DTCs B1571(REFERENCE CODE INCOMPATIBILITY IMMOBILIZER CM TO ECM) and B1572(IMM CIRCUIT EXCEPT ANTENNA CIRCUIT)…
- 11027982Jan 12, 2026This Bulletin provides the diagnostic procedure for the STARLINK® Remote Engine Start (RES).
Engine: other model years
Other parts of the 2024 Subaru Ascent
31 complaintsOther or unknown
5 complaintsElectrical system
4 complaintsForward collision avoidance
4 complaintsBack-over prevention (rear camera)
3 complaintsSteering
3 complaintsTransmission and drivetrain
3 complaintsWheels
3 complaintsTires
2 complaintsVehicle speed control
2 complaintsAir bags
1 complaintsBrakes
1 complaints
← All problems reported for the 2024 Subaru Ascent
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology