This Service Information Bulletin outlines a systematic procedure for diagnosing parasitic draw (dark/standby current) in vehicles experiencing battery drain when the ignition is off, leading to no-start conditions or frequent jump-starts.This is an revised version of the original bulletin.
full bulletin at NHTSA ↗2021 Subaru Crosstrek electrical problems
severe Owners of the 2021 Subaru Crosstrek have filed 12 NHTSA complaints about the electrical at roughly $850 to repair (U.S. federal records, as of September 2026). Source: NHTSA Office of Defects Investigation. See electrical across all vehicles →
| Model year | electrical complaints |
|---|---|
| 2017 Crosstrek | 15 |
| 2018 Crosstrek | 29 |
| 2019 Crosstrek | 45 |
| 2020 Crosstrek | 9 |
| 2021 Crosstrek (this page) | 12 |
| 2022 Crosstrek | 3 |
| 2023 Crosstrek | 6 |
| 2024 Crosstrek | 6 |
| 2025 Crosstrek | 5 |
When does it fail?
Of the 12 electrical complaints filed for the 2021 Subaru Crosstrek, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
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 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 original bulletin.)
full bulletin at NHTSA ↗This 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 original bulletin
full bulletin at NHTSA ↗This bulletin announces the design change made to the high-pressure fuel pump developed to prevent DTC P0087 (Fuel Rail/System Pressure – Too Low Bank 1). (This is an revised version of the original bulletin.)
full bulletin at NHTSA ↗This bulletin announces design changes made to the fuel injector in response to the DTCs listed. (This is an revised version of the original bulletin.)
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 2 most recent
What component or system failed or malfunctioned, and is it available for inspection upon request? The USB A outlets under the head unit that allow connection to Android Auto and Apple CarPlay Yes it is available for inspection upon request How was your safety or the safety of others put at risk? The connection when hooked up to a phone is intermittent. This results in driver distraction…
The contact owns a 2021 Subaru Crosstrek. The contact stated while driving at an undisclosed speed, the vehicle shut off unintendedly and failed to restart. The contact stated that several unknown warning lights were illuminated. The vehicle was towed to the dealer where it was diagnosed and determined that the battery had failed. The vehicle was not repaired. The manufacturer was notified of the…
Common questions
How serious is the electrical problem on the 2021 Subaru Crosstrek?
It's a meaningful issue. 12 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Based on the 12 complaints filed, electrical issues most often appear around 49,433 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
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.