Is your Subaru making strange noises when accelerating? Experiencing hesitation or shuddering? You might be dealing with a CVT transmission issue—but there’s good news. Subaru has significantly extended warranty coverage for many models, potentially saving you thousands in repair costs. Here’s everything you need to know about these crucial warranty extensions and how they might apply to your vehicle.
What Is the Subaru CVT Warranty Extension?
Subaru’s CVT (Continuously Variable Transmission) warranty extension program is one of the most comprehensive in the automotive industry. Instead of the standard 5-year/60,000-mile powertrain warranty, affected vehicles now receive 10-year/100,000-mile coverage specifically for CVT-related issues.
This extension represents Subaru’s response to ongoing reliability concerns with their Lineartronic CVT systems. The company has implemented multiple waves of extensions over the past decade, with the most recent occurring in 2024-2025.
Which Subaru Models Are Covered?
The warranty extension applies to a wide range of Subaru vehicles equipped with CVT transmissions. Here’s a breakdown by model year:
2016-2017 Models
In September 2018, Subaru issued Technical Service Bulletin (TSB) 16-115-18, extending CVT warranty coverage to 10 years/100,000 miles for these models:
- Legacy
- Outback
- Impreza
- Crosstrek
- Forester
- WRX
This bulletin included special provisions for vehicles exceeding 100,000 miles at notification time, offering additional one-year coverage through September 30, 2019.
2018 Models
TSB 16-117-18 confirmed identical 10-year/100,000-mile coverage for 2018 models. Subaru Customer Services explicitly confirmed this extension applies to all 2018 Outback models and related vehicles.
2019-2020 Models
The most recent wave of extensions covers:
- Legacy
- Outback
- Crosstrek
- Forester
- Ascent
- Impreza
These vehicles receive comprehensive extension that provides one-year coverage from the notification date regardless of current mileage, transitioning to the full 10-year/100,000-mile coverage for qualifying vehicles.
Special Coverage for 2019-2020 Ascent Models
The 2019-2020 Ascent models received specialized coverage for Multi-Plate Transfer (MPT) clutch issues through TSB 16-146-24R, resulting from a class action settlement. This settlement provides:
- 8 years/100,000 miles coverage specifically for shudder, judder, and vibration problems
- 2-year extended parts warranty for replacement components
Common CVT Problems Covered by the Extension
The warranty extension covers several common transmission issues that Subaru owners might experience:
Chain Slip Problems
The WRK-21 recall affects 2019-2020 Ascent and 2020 turbocharged Legacy/Outback models, addressing CVT chain slip conditions. Symptoms include:
- Unexpected loss of power
- Illuminated check engine light
- Transmission slipping sensations
Vehicles requiring complete CVT replacement during this recall receive the extended 10-year/100,000-mile coverage specifically for chain slip-related failures.
MPT Clutch Issues
These problems primarily affect 2019-2020 Ascent models and manifest as:
- Shuddering during acceleration
- Vibration at specific speeds
- Hesitation when pressing the gas pedal
- Inconsistent shifting behavior
Service Bulletin 16-136-22 provides diagnostic procedures for these symptoms, which can progress from intermittent issues to complete transmission failure if left untreated.
What’s Covered (And What’s Not)
Understanding the scope of the warranty extension helps you determine if your repair will be covered.
What’s Included
The extended warranty covers:
- Original equipment CVT transmissions
- Genuine Subaru replacement transmissions
- Transmissions remanufactured by Subaru of America
- Labor costs for covered repairs
- Towing to the nearest Subaru dealer (if breakdown occurs)
What’s Excluded
The warranty extension specifically excludes:
- Salvage yard CVT units
- Rebuilt salvage vehicles
- CVTs overhauled by unauthorized third parties
- Damage from abuse, collision, or vandalism
- Regular maintenance services
- Normal wear and tear items
The Ascent CVT Settlement: Additional Benefits
The 2019-2020 Subaru Ascent CVT class action lawsuit resulted in a comprehensive settlement that goes beyond just warranty extensions.
Cash Vouchers
Owners experiencing multiple qualifying issues can receive:
- $400-$750 toward new vehicle purchases
- Credit for service or parts at Subaru dealerships
Reimbursement Program
If you paid out-of-pocket for qualifying CVT repairs before the settlement notice date, you may be eligible for full compensation. To qualify, you’ll need:
- Original repair invoices showing VIN, repair details, and costs
- Proof of payment (canceled checks, credit card receipts)
- Evidence that repairs addressed covered conditions
Authorization Requirements
For repairs exceeding $10,000 or vehicles with over 100,000 miles, dealers must contact the Subaru Claims Helpline at 1-866-SUBARU2 (1-866-782-2782) for pre-authorization.
How to Tell If Your CVT Is Failing
Recognizing the early warning signs of CVT problems can help you address issues before they become catastrophic.
Warning Signs to Watch For
- Unusual noises: Whining, grinding, or buzzing sounds during acceleration
- Hesitation: Delayed response when pressing the gas pedal
- Shuddering or jerking: Especially during acceleration or at specific speeds
- Burning smell: Often indicates overheating transmission fluid
- Check engine light: Particularly when accompanied by error codes related to the transmission
- Difficulty maintaining speed: Unexpected deceleration or power loss
- Fluid leaks: Reddish fluid under the vehicle may indicate a transmission problem
If you experience any of these symptoms, have your vehicle inspected by an authorized Subaru dealer as soon as possible.
Getting Your CVT Repaired Under Warranty
The process for getting your transmission repaired under the extended warranty is straightforward but requires following specific steps.
Step-by-Step Process
- Document symptoms: Keep a detailed log of when and how transmission problems occur
- Contact your dealer: Schedule an appointment specifically mentioning CVT issues and the warranty extension
- Reference the TSB: Mention the appropriate Technical Service Bulletin number for your model year
- Follow up: Ensure the dealer submits the warranty claim correctly
- Keep all paperwork: Maintain copies of all repair orders and documentation
Diagnostic Procedures
Subaru technicians must follow specific diagnostic procedures outlined in relevant Technical Service Bulletins before claiming warranty coverage:
- For chain slip issues, TSB 16-132-20R provides mandatory testing protocols
- MPT clutch problems require following TSB 16-136-22 procedures
Maintenance Tips to Extend CVT Life
While CVT issues can occur even with proper maintenance, these tips may help extend your transmission’s lifespan:
Fluid Changes
Despite Subaru marketing CVT fluid as “lifetime,” industry experts and Subaru forums recommend changing CVT fluid every 36,000 miles. This preventive maintenance can help avoid warranty claims and extend transmission life beyond the coverage period.
| Maintenance Item | Factory Recommendation | Expert Recommendation |
|---|---|---|
| CVT Fluid Change | “Lifetime” (no change) | Every 36,000 miles |
| Fluid Inspection | During regular service | Every 15,000 miles |
Driving Habits
These driving practices can reduce stress on your CVT:
- Allow the transmission to warm up before aggressive driving
- Avoid prolonged full-throttle acceleration
- Don’t tow beyond recommended capacity
- Let the vehicle come to a complete stop before shifting between Drive and Reverse
Transferability and Resale Value Impact
The good news for used car buyers and sellers: these warranty extensions transfer to subsequent owners during the coverage period. This transferability applies regardless of whether the vehicle was purchased from a dealer or private party.
Impact on Resale Value
The transferable nature of these warranty extensions benefits the used car market in several ways:
- Enhanced value proposition: Extended coverage makes affected models more attractive to buyers
- Reduced risk: Buyers have protection against expensive transmission repairs
- Marketability: Sellers can highlight the remaining warranty as a selling point
When selling your Subaru, be sure to include documentation of the warranty extension to maximize your vehicle’s value.
Canadian and International Coverage
Canadian Coverage
Subaru Canada has implemented similar but sometimes delayed warranty extensions. Canadian owners experiencing CVT issues report that warranty extensions are “coming soon” in some regions, suggesting coordinated but not simultaneous implementation across North American markets.
State-Specific Considerations
Some states have enhanced consumer protection laws that may provide additional remedies beyond Subaru’s voluntary warranty extensions. California’s lemon law and similar state statutes can provide alternative recourse for persistent transmission problems.
The Future of Subaru CVTs
Subaru’s extensive warranty extension programs reflect broader industry challenges with CVT technology. The company has indicated that newer CVT designs incorporate lessons learned from earlier generations, though specific technical improvements remain proprietary.
Engineering Improvements
While Subaru hasn’t publicly detailed all changes, industry sources suggest several improvements in newer models:
- Enhanced cooling systems to prevent overheating
- Stronger chain materials to reduce slip issues
- Refined clutch designs to minimize shudder
- Updated transmission control modules with better programming
Market Implications
The frequency and scope of Subaru’s CVT warranty extensions have influenced both consumer purchasing decisions and automotive industry practices. Some experts suggest that traditional automatic transmissions may offer superior long-term reliability compared to CVT technology.
Other Subaru Warranty Extensions and Settlements
Beyond CVT issues, Subaru has resolved multiple class action lawsuits affecting various components:
Oil Consumption Settlement
The 2016 oil consumption settlement for 2011-2015 FB engine models provided 8-year/100,000-mile warranty extensions and reimbursements for excessive oil consumption repairs.
Windshield Cracking Settlement
A preliminary windshield cracking settlement for 2017-2021 models offers 8-year/100,000-mile windshield replacement coverage, addressing concerns about abnormal cracking in these model years.
Understanding Your Warranty Documentation
When you receive notification of a warranty extension, you’ll typically get a letter that includes:
- Vehicle identification: Your VIN and model information
- Coverage details: Specific components covered and duration
- Terms and conditions: Any limitations or exclusions
- Contact information: How to reach Subaru customer service
Keep this documentation with your vehicle records and provide a copy to any subsequent owner if you sell the vehicle.
| Document Type | What It Covers | Where to Find It |
|---|---|---|
| TSB Letter | Official notification of warranty extension | Mailed to registered owners |
| Repair Orders | Documentation of CVT diagnoses and repairs | Provided by dealer after service |
| Settlement Notices | Information about class action benefits | Mailed to eligible owners |
Taking Action: Next Steps for Owners
If you own a Subaru with a CVT transmission, here’s what you should do now:
- Verify coverage: Check if your vehicle’s model and year are included in the warranty extension
- Monitor symptoms: Be alert for early warning signs of CVT problems
- Contact your dealer: If you notice issues, schedule an inspection immediately
- Save documentation: Keep all service records and warranty notifications
- Consider fluid changes: Even though not required, regular CVT fluid changes may extend transmission life
By staying proactive and informed about these warranty extensions, you can protect yourself from potentially expensive transmission repairs and maximize the value and reliability of your Subaru.
