2019 Subaru Ascent Electrical system Problems
- Complaints
- 160about this part
- Share
- 36%of 443 total for the year
- Median mileage
- 10,550miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 160 complaints about the electrical system of the 2019 Subaru Ascent, 36% of the 443 complaints for this model year. Where a mileage was given, the median is 10,550 miles. 4 a fire, according to the filers. 1 recall campaign on record is filed under a similar system.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Several times our 2019 Subaru Ascent battery has drained down to low levels requiring jump starts. This last time was this winter and -15 degrees outside and was very dangerous for her. The alternator does not seem able to keep up with the load. I have heard of many other people having this problem. It sat overnight on both occasions.”
NHTSA complaint #11396263, filed 2021-02, 19,567 miles“Battery is dead frequently (1-2 times per week). This occurs after leaving one or more doors open (thus the interior lights are illuminated) for only 5-10 minutes. We are constantly having to jump start the car using a portable lithium ion battery that we purchased because of this issue. This has been occurring for over a year.”
NHTSA complaint #11395416, filed 2021-02, 15,000 miles“Unable to start my Subaru Ascent 2019 due to battery issue, facing this issue 2nd time. I was able to start my vehicle 3 days ago and vehicle stationary for 3 days in garage and try to start today it did not start start again it makes little bit crank sound and then no response from engine and halted and my dashboard displayed everything, tryed multiple times no luck for me.”
NHTSA complaint #11390443, filed 2021-01, 8,600 miles“After having my vehicle for less than two months and under 680 miles I had to continually jump start the battery in order to start the vehicle. I called my local dealership and was informed there was an electrical sync issue with the batteries in the new Ascent. They replaced the battery and told me they fixed the sync issue.”
NHTSA complaint #11373067, filed 2020-11, 680 miles“My car is 1.5 years old and the battery died in me and left me stranded. Car started after being jumped. I used my trickle charger and it is telling me that battery is bad. Car electrical system was acting strange and not turning off all systems when car was turned off. This probably drained battery.”
NHTSA complaint #11396090, filed 2021-02, 25,000 milesRelated recalls
- 22V907000Dec 8, 2022Subaru of America, Inc. (Subaru) is recalling certain 2019-2022 Ascent vehicles. The ground bolt that secures the ground terminal of the Positive Temperature…Covers: Subaru Ascent 2019–2022
Related service bulletins
- 11037943Oct 5, 2026This announcement provides information on a new software update for the Midtronics Dss and DCA machines.
- 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.
- 11037945Sep 29, 2026This Bulletin provides a repair procedure for increased dark current and unintended battery discharge that occurs in a small number of unique cases.
- 11037942Sep 28, 2026This announcement provides information on an enhancement of the TechShare CVT diagnostic assitance application.
- 11037929Sep 14, 2026This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. This is an revised version of the…
- 11037928Sep 14, 2026In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the CP1 & Gen 3.1 Head Unit used in the listed…
- 11037927Sep 14, 2026This bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concerns. This is an revised version of the…
- 11037925Sep 4, 2026This bulletin provides additional examples, diagnostics tips and installation tips as helpful aids to be used when working with sunroof seals and sunroof frame assemblies on…
- 11036821Aug 31, 2026This bulletin announces the availability of new reprograming files for the Engine Control Module (ECM) developed to remedy the following DTCs: P0016, P0017, P0018, P0019, P0014…
- 11036804Aug 21, 2026This Announcement provides diagnostic assistance for CVT issues.
Electrical system: other model years
Other parts of the 2019 Subaru Ascent
90 complaintsVisibility (wipers, defrost, mirrors)
81 complaintsOther or unknown
60 complaintsEngine
47 complaintsBrakes
26 complaintsFuel system
16 complaintsBody and structure
12 complaintsForward collision avoidance
11 complaintsSuspension
11 complaintsAir bags
7 complaintsExterior lighting
7 complaintsSteering
7 complaints
← All problems reported for the 2019 Subaru Ascent
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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