This bulletin announces a design change made to the CVT Control Valve Body which incorporates an enhanced valve sleeve to improve durability.
full bulletin at NHTSA ↗2019 Subaru Legacy electrical problems
moderate 34 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Complaints
34
Recalls
0
Avg fix
$850
What stands out
Owners have filed 34 electrical complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
Electrical accounts for 28% of all owner complaints filed against this vehicle, across 5 categories tracked.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This bulletin announces the new procedure and Warranty Fail Code for FirstTime air conditioning (A/C) performance concerns possibly resulting from an undetected A/C refrigerant leak.
full bulletin at NHTSA ↗This bulletin contains information to help when attempting to complete the STARLINK Telematics subscription process, an Error Code 202 and / or 204 may occur preventing the process from completing successfully
full bulletin at NHTSA ↗This Service Information Bulletin was developed to provide interim guidance for 2026 model year vehicles exhibiting DTC B2A20 with gen 4 Telematics.
full bulletin at NHTSA ↗This bulletin announces the new procedure and Warranty Fail Code for FirstTime air conditioning (A/C) performance concerns possibly resulting from an undetected A/C refrigerant leak.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2019 Legacy exhibits two severe electrical defects with no factory fix. The first is the Harmon infotainment system, where the touchscreen develops white spots or bubbles under the panel within 34,000–50,000 miles. Once compromised, the screen activates randomly—cycling menus, changing radio stations, routing navigation to unintended destinations, and making unwanted phone calls through paired Bluetooth. The rear-camera display becomes obscured, creating a safety hazard. Owners report the issue was recalled in 2018 models, but 2019 models show the identical fault with no recall extension; Subaru blames liquid contamination despite owners reporting no liquid exposure, and dealers refuse warranty coverage.
The second defect is a parasitic battery drain. The Starlink/DCM module constantly searches for a defunct 3G network even when the vehicle is off, killing the battery in 2–7 days of non-use. Multiple owners report mechanics and dealers have confirmed the DCM as the culprit, yet Subaru offers no recall—only expensive module replacement ($1,300) or demands owners pay for diagnosis and new batteries. Owners have replaced batteries three to four times in six months. One owner disabled the DCM by removing its fuse as a temporary fix. Some dealers later reimbursed battery costs via warranty notice, but with no clear communication or systematic recall.
Together, these failures create routine stranding and serious distraction while driving.
Same Subaru Legacy electrical reports on nearby years: 2016 · 2017 · 2018 · 2020
Failure modes owners describe
Infotainment touchscreen delamination and uncontrolled activation
The Harmon-manufactured head unit develops bubbles or white spots under the front panel, causing the touchscreen to activate randomly without driver input. The display becomes distorted and unresponsive, cycling screens, changing radio stations, switching navigation, and making unwanted phone calls. Owners report the bubbling begins well within warranty period (34,000–50,000 miles). Subaru claims liquid contamination causes the bubbles, but owners dispute this. The issue was identified in 2018 models which prompted a recall and warranty extension, but 2019 models exhibit the same defect and were not included in the recall. Dealers deny responsibility for defective units.
When: 34,000–50,000 miles; some reports within first months of ownership
Symptoms owners cite: White spots or bubbles visible under front panel; Unresponsive touchscreen or overly sensitive touch activation; Random radio channel and station changes; Navigation changes autonomously (e.g., routing to unintended destinations); Unwanted phone calls placed through Bluetooth connection; Screen cycling through different menus without input; Audio playback cannot be controlled; Rear view camera display distorted or obscured by bubbles; Constant beeping and audible warnings
Repairs/costs cited: Harmon head unit replacement required; back orders exceed one year in some cases; Subaru covered a portion of replacement in some instances but owners report entire cost should be covered as manufacturer defect
Recalls/TSBs owners mention: Recall issued for 2018 models with warranty extension; 2019 models not included in recall; Subaru contends bubbles are due to liquid contamination and has refused warranty coverage for affected 2019 vehicles
Battery parasitic drain via Starlink/DCM module
The Starlink/DCM (Diagnostic Communication Module) continuously searches for the defunct 3G network even when the vehicle is off, causing relentless parasitic drain that kills the battery within days or weeks of non-use. Multiple owners confirm mechanics have identified the DCM as the culprit. Subaru acknowledges the problem but has not issued a recall. Dealers offer only expensive module replacement ($1,300 reported) or ask owners to pay for diagnosis and battery replacement. Some owners report Subaru later reimbursed battery replacement costs via warranty notice, but without clear communication. Cold weather exacerbates the issue. The alternator was altered to delay charging until engine warms, compounding the drain.
When: Reported starting late 2023; affects vehicles from original purchase through years of ownership; issue occurs within days to weeks of non-use
Symptoms owners cite: Battery completely dead after 2–7 days of no driving; Battery cannot hold charge even after testing shows it is within parameters; Multiple battery replacements required (3–4 per year in some cases); Vehicle stranded and unable to start without jump; Dead battery occurs despite new battery installation; Worse in cold weather but occurs year-round; Fob unable to unlock doors when battery is depleted; Battery drains even with battery tender connected
Repairs/costs cited: Battery replacements; some owners disabled DCM by removing fuse as temporary workaround; Subaru dealership replacement of DCM module estimated at $1,300; alternator not charging battery until engine warms per EPA standards; recommended cold cranking amperage changed by Subaru after vehicle manufacture
Recalls/TSBs owners mention: Subaru acknowledges DCM searches for defunct 3G network; later issued reimbursement for battery replacement via warranty notice (no recall issued); dealers acknowledge problem but offer no warranty fix; some dealers required new battery installation before testing electrical system
Unintended high-RPM surging at start
On at least one documented occasion, the engine RPM surged from idle to over 6,000 RPM without driver input while the vehicle was in Drive at a traffic stop and again immediately after restarting from Park. Braking controlled the vehicle; shifting to Neutral caused RPM to increase further. The vehicle was shut off and restarted, after which it functioned normally. Subaru dealership service was unable to reproduce the issue.
When: Two occurrences same day; mileage not specified
Symptoms owners cite: Unintended acceleration to over 6,000 RPM from idle; Occurs while in Drive at traffic stop and in Park immediately after starting; Shifting to Neutral causes further RPM increase; Issue resolves after shutdown and restart
Repairs/costs cited: Vehicle shut off and restarted; no permanent repair documented; dealership unable to reproduce the issue
Check Engine and warning lamp illumination without diagnostic clarity
Check Engine light and two other unknown warning indicators illuminated at low mileage (approximately 60 miles). Dealership reprogrammed the computer system, but the failure recurred. Subaru manufacturer was notified and advised the owner not to worry about the issue but took no corrective action.
When: Approximately 60 miles
Symptoms owners cite: Check Engine light illuminated; Two additional unknown warning indicators illuminated
Repairs/costs cited: Dealership reprogrammed computer system; issue recurred
Recalls/TSBs owners mention: Subaru manufacturer informed owner not to worry about the failure; took no corrective action
Synthesized from 34 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 4 most recent
Subaru Starlink system constantly drains battery, leaving driver and passengers stranded. The Starlink is constantly looking for a 3G network, and my area has updated all 3G networks to 5G. After shutting car off, the Starlink will continuously search and drain battery so it will not start. The only temporary fix is to remove the fuse and disable the module. The Starlink is supposed to help in…
The Starlink screen becomes uncontrollable and begins changing screens on its own making driving very distracting and losing all control of vital functions such as radio, gps and phone. I have no control over it. I have video of the incident but cannot figure out how to upload it. I k low previous year models were recalled for the same situation and I believe there is a class action lawsuit.
The "infotainment system" screen is delaminating. I can not see my surroundings when in reverse. The system is paired with my mobile telephone and randomly calls persons in my contact list without my requesting it do so. The radio can not be turned off and it consistently makes noises as if it is attempting to scan different radio stations. These defects first appeared at 34,000 miles, well…
Infotainment system touchscreen failed and it became unstable. Bluetooth connected to phone failed, gos failed Yes Yes No
Had electrical trouble with your 2019 Subaru Legacy?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2019 Subaru Legacy?
It's a documented issue but not catastrophic. 34 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2019/Subaru/Legacy.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.