2020 Volkswagen Passat SE 2.0L VIN: [XXX] Complaint Summary: I am reporting a persistent and unresolved fault involving the secondary air injection system (DTC P0491 – insufficient airflow) that has resulted in repeated, conflicting diagnoses across multiple repair facilities. This raises concerns about a potential systemic de…
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2020 Volkswagen Passat SE 2.0L VIN: [XXX] Complaint Summary: I am reporting a persistent and unresolved fault involving the secondary air injection system (DTC P0491 – insufficient airflow) that has resulted in repeated, conflicting diagnoses across multiple repair facilities. This raises concerns about a potential systemic defect affecting this vehicle model. Detailed Description: The issue began prior to March 2025 while the vehicle was still under warranty. The vehicle displayed a Check Engine Light associated with diagnostic trouble code P0491 (secondary air injection system insufficient airflow). On April 3, 2025, a repair facility diagnosed the issue as a failed secondary air injection pump and replaced the component. However, the Check Engine Light returned within 24 hours with the exact same fault code, indicating that the repair did not resolve the issue. A second independent diagnostic evaluation was performed later in April 2025. This inspection confirmed that: The secondary air injection pump was functioning correctly Airflow through the system was present Electrical controls and PCM commands were operating properly The fault was attributed instead to a mechanically stuck secondary air injection combination valve Despite this revised diagnosis, the issue has remained unresolved. As of 2026, a dealership evaluation has now attributed the same fault condition to a potential failure within the cylinder head assembly, indicating a significantly more serious underlying condition. Safety Concern: This issue involves the emissions and engine air management system and has resulted in: Persistent Check Engine Light Repeated failure of emissions-related components Conflicting and escalating repair diagnoses across multiple qualified service providers I am requesting that the National Highway Traffic Safety Administration review this issue for potential investigation into a systemic defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11726512
Mileage unknown · Apr 22, 2024
Unknown Or Other
VIN: [XXX] Dealership: Vanguard Volkswagen 6900 Burnet Rd Austin, TX 78757 I bought 2020 Passat back in Aug 2020 with CarNet included. It was showing that CarNet will be installed later when available at no cost. So in 2021 they installed carnet and everything was working fine up until 2024. The light turned off and no co…
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VIN: [XXX] Dealership: Vanguard Volkswagen 6900 Burnet Rd Austin, TX 78757 I bought 2020 Passat back in Aug 2020 with CarNet included. It was showing that CarNet will be installed later when available at no cost. So in 2021 they installed carnet and everything was working fine up until 2024. The light turned off and no connection to the car. I called CarNet and they told me that most likely an issue with HW module and suggested to take to the dealer to get reset/replaced. Went to the dealer few days ago. Left them a car for 3 days for diag. No fault codes. So dealer sent a ticket to the Volkswagen to see how to proceed. I got a call from dealership today that Volkswagen responded to them that 2020 Passat is no longer eligible for the CarNet. Excuse me? At the time of sale CarNet was included. It was working fine no issues. And now Volkswagen taking car feature away that it came with and I paid for.. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11584569
Mileage unknown · Mar 7, 2024
Unknown Or Other
Our vehicle will not speed up after accelerating but you can hear the engine making noise like it’s trying to speed up. We have taken our vehicle 3-4 times back to the dealership and they have told us they found nothing.
NHTSA ODI #11576122
2,000 miles · Sep 22, 2020
EngineUnknown Or Other
PARK ASSIST NOT AVAILBLE. LOSS OF ENGINE POWER ON LEFT OR RIGHT TURN
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2020 Passat vehicles. The passenger frontal air bag may have been folded incorrectly affecting its deployment force. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Consequence & remedy
Consequence: An incorrectly folded air bag can deploy with too much force, increasing the risk of injury.
Remedy: Volkswagen will notify owners, and dealers will replace the passenger frontal air bag, free of charge. The recall began October 14, 2020. Owners may contact Volkswagen customer service at 1-888-241-2289. Volkswagen's number for this recall is 69AY.
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2012-2020 Volkswagen Passat and 2018-2019 Atlas vehicles. The blocking cap disabling the adjustment of the headlight's horizontal aim may not have been installed. As such, these vehicles fail to conform to Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices, and Associated Equipment."
Consequence & remedy
Consequence: Without the blocking cap, the headlight aim can be adjusted out of specification, reducing visibility and increasing the risk of a crash.
Remedy: Volkswagen will notify owners, and dealers will inspect and, as necessary, block the headlight horizontal adjustment, free of charge. The recall began July 16, 2019. Owners may contact Volkswagen customer service at 1-800-253-2834. Volkswagen's number for this recall is 94L9.
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2019 Atlas and 2020 Passat vehicles. An incorrect driver and/or front passenger side impact air bag may have been installed.
Consequence & remedy
Consequence: In an event of a side impact crash, an incorrect side airbag may not deploy as intended, increasing the risk of injury.
Remedy: Volkswagen has inspected and replaced the side air bags, free of charge. The recall was completed in April 2019. Owners may contact Volkswagen customer service at 1-800-893-5298. Volkswagen's number for this recall is 69Y8.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
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