The problem: Vehicles may display a lit Check Engine light due to a glitch in the engine control module software, causing the onboard diagnostic strategy to be too sensitive.
Corrective action: Dealers will update the ECM software with a new program that eliminates this condition.
Warranty info: This service bulletin will be performed free of charge under the extended or federal emissions warranty, whichever applies.
What owners should do: Call your local dealer with your vehicle’s identification number to determine if it’s involved in this service bulletin. You can also call Volkswagen at 800-822-8987 or NHTSA at 888-327-4236. Reference TSB No. 0115-25.
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.