The problem: Affected vehicles may exhibit a condition where the engine idles roughly, makes noise (spark knock under acceleration) or in extreme cases sustains engine damage from operating in this condition for long periods of time. This could be due to a glitch in the engine control module software.
Vehicles affected by this service bulletin:
- 2015 Subaru WRX
- 2014 Subaru Forester
- 2015 Subaru Forester
All with the 2.0-liter direct-injected turbo engine
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Corrective action: Dealers will update the engine control module software and repair any engine damage attributed to the condition.
Warranty info: This service bulletin is being performed free of charge. The bulletin is being managed via vehicle identification numbers, so be prepared to give your service provider this information at the time of service to determine eligibility.
What owners should do: Call your local dealer with your VIN to determine if your vehicle is involved in this service bulletin. You can call Subaru at 800-782-2783 or the National Highway Traffic Safety Administration hotline at 888-327-4236. Reference TSB No. WQW-58R.
Need to find a dealer for service? Go to Cars.com Service & Repair to find a local dealer.
Editor's note: This is only one of dozens of service bulletins issued each month by automakers. Please check your automaker's website to see if your vehicle has any service bulletins pending.
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