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Service bulletins for the 2012 Volkswagen Passat

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1572 on file from NHTSA, as of 2026-10-19.

By type

By component

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Bulletins, newest first
TT9111172023-06-13. Service bulletin. ELECTRICAL SYSTEM; PARKING BRAKE. Replacement RNS 510 radio/navigation units may be shipped in transportation safeguard mode and therefore will have no sound output. In order to switch the unit out of this mode, hold down the forward seek button, the back seek button, and the music button at the same time until the unit shuts down. Once the unit is powered back ?ON? the safeguard mode will be deactivated.
TT9111162023-06-13. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:BLUETOOTH/WIFI. When pairing an Android phone to the Bluetooth system, a few extra steps may be necessary. Follow the instructions below to pair the phone:
TT9111142023-06-13. Service bulletin. ELECTRICAL SYSTEM. The Bluetooth module has now been integrated into the navigation head unit on 2012-2013 vehicles with RNS 315 navigation part number 1K0 035 274 B or higher. The diagnosis for this system is similar to the 9W7 system. Technical Bulletin 91 11 09 (2026015) can be used for the diagnosis.
TT9111112023-06-13. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). The RNS 315 navigation unit does not contain the Sirius Traffic functionality. Currently only the RNS 510 navigation unit is capable of this function. These units should not be substituted and the Warranty claim is subject to denial.
TT9111092023-06-13. Service bulletin. FUEL SYSTEM, GASOLINE. When the Navigation RNS 850/510/315 is in 3D mode, the top portion of the screen may not display streets. This line represents the horizon and is a normal operation of system. No repairs should be made. Examples below of day and night modes
TT901302a2023-06-13. Service bulletin. ELECTRICAL SYSTEM. Under the ?Control Module? tab right click on address word ?17 Dash Board?. Open ?Control module OBD?. Click ?
TT9012042023-06-13. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. After instrument cluster replacement, service interval maximum values may need to be manually set. To set values manually, use Vehicle self-diagnosis to select 17- Instrument Cluster, then adaptation. Channel ?SIA: maximum value of distance to service? should be set to 16000 km and channel ?SIA: maximum value of time to service? should be set to 372 days.
TT8714012023-06-13. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:COMPRESSOR:MODULE (ACCM). When replacing the Air Conditioning compressor it is necessary to flush the entire system to remove all the PAG oil. Replacement AC compressors come with a full charge of oil. Any time another compressor is installed with a different vendor (Sanden to Denso) it is necessary to replace all the oil in the system to the new vendor type PAG oil.
TT8013012023-06-13. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT. If the vehicle comes in with a blower concern, check for DTCs. If DTCs are found, use the table below to diagnose the concern. Use figures 1 and 2 below for component reference.
TT7213012023-06-13. Service bulletin. AIR BAGS; SEATS. Be aware that the driver seat backrest on vehicles equipped with memory seats will not recline to the point of contacting rear seat. Maximum recline position is shown below. No repairs should be attempted to resolve this normal product characteristic.
V1719012012855622023-06-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. Volkswagen Engine oil quality standards, update to attachments.
V1917012022548102023-06-06. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. Introduce new engine coolant compatible with all models and all model years.
VWC12252023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Volkswagen Warranty Helpline 2012 Holiday Hours of operation
Edition132023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. ElsaWeb Newsletter
Edition112023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. ElsaWeb Newsletter
Edition192023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. ElsaWeb Newsletter
Edition182023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. ElsaWeb Newsletter
UpdateGuide2023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Quick reference update guide.
Edition1722023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Elsa Newsletter
Edition1742023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Elsa Newsletter
Edition1732023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Fuel Additive to Help Prevent Sporadic Misfire Faults
OCA62023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. On-car analysis list please contact VW Helpline before attempting repair
OCA2023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. On-car analysis list please contact VW Helpline before attempting repair
OCA52023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. On-car analysis list.
OCA42023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. On-car analysis list.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.