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Service bulletins for the 2020 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.

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

By type

By component

By trouble code

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
Circular91BMREV12021-07-02. Service bulletin. ELECTRICAL SYSTEM. Updated Car-net Quick Reference Guide. 2020 MY Passats are excluded from the remote start function via the Car-net app
Dealer 91BM2021-05-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. As indicated on the Monroney label at the time of retail sale, the vehicles included in this service action were sold before July 1, 2020 with a non-functioning Car-Net Operating Control Unit (OCU). Purchasers were advised that a functioning OCU would be installed free of charge once parts became available.
Circular 91BM2021-05-06. Service bulletin. ELECTRICAL SYSTEM. As indicated on the Monroney label at the time of retail sale, the vehicles included in this service action were sold before July 1, 2020 with a non-functioning Car-Net Operating Control Unit (OCU). Purchasers were advised that a functioning OCU would be installed free of charge once parts became available.
TT 57 18 02_32021-04-06. Service bulletin. ELECTRICAL SYSTEM. Key battery diagnosis, updated to include additional model year applicability.
V0118122014603162021-03-04. Service bulletin. ELECTRICAL SYSTEM. Software Version Management (SVM) instruction updated to include model year 2021
Dealer 67A92021-02-04. Service bulletin. ELECTRICAL SYSTEM. In affected vehicles, the radio may not turn off due to a wiring issue inadvertently introduced when the Remote Start feature was installed at the port. A radio that doesn't turn off can result in a dead vehicle battery.
Circular 67A92021-02-04. Service bulletin. ELECTRICAL SYSTEM. In affected vehicles, the radio may not turn off due to a wiring issue inadvertently introduced when the Remote Start feature was installed at the port. A radio that doesn't turn off can result in a dead vehicle battery.
VIN4APIN202101142021-02-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Customer states MIL-on with P0556 Customer states MIL-on with P2421 Customer states MIL-on with Misfire code Customer states clutch pedal makes noise No crank, no start Customer states no voice output during calls / micro phone inoperative Customer states fuel odor/leak in the rear part of the vehicle (without a punctured fuel tank, hoses or pipes) or difficulty fueling fuel tank or fuel coming back up filler neck
VIN4APIN202101042021-02-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Customer states MIL-on with P0556 Customer states MIL-on with P2421 Customer states MIL-on with Misfire code Customer states clutch pedal makes noise No crank, no start Customer states no voice output during calls / micro phone inoperative Customer states fuel odor/leak in the rear part of the vehicle (without a punctured fuel tank, hoses or pipes) or difficulty fueling fuel tank or fuel coming back up filler neck
V2719012011894162021-02-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Battery testing. Updated to include additional model and model year applicability.
TT 01 18 162021-02-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Update to address DTC U300100 after a Charging System Concern, Discharged Battery or Battery Replacement
VIN4APIN202012102021-01-08. Service bulletin. ELECTRICAL SYSTEM; SEATS; ENGINE. Customer states MIL-on with P0556 Customer states MIL-on with P2421 Customer states MIL-on with Misfire code Customer states clutch pedal makes noise No crank, no start Customer states no voice output during calls / micro phone inoperative Customer states seat memory inoperative Customer states fuel odor/leak in the rear part of the vehicle (without a punctured fuel tank, hoses or pipes) or difficulty fueling fuel tank or fuel coming back up filler neck
TT 57 10 152021-01-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Updated key ordering protocol
TT 27 20 02_12021-01-08. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:OTHER:LABELS. Battery Id for testing
V0019042054866_22021-01-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Instruction on how to create S/D cards used to update programming on various control modules.
VIN4APIN202011122020-12-04. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Customer states MIL-on with P0556 "Customer states MIL-on with P11A1/P11A2/P11A3/P11A4/P11A5/P11A6/P11A7/P11A8/ P11A9/P11AA/P11AB/P11AC/P11AD/P11AE/P11AF/P11B0" Customer states MIL-on with P0463 P2068 Customer states MIL-on, HPFP mounting bolts loose/broken Customer states MIL-on with Misfire code Customer states clutch pedal makes noise No crank, no start Customer states seat memory inoperative Customer states fuel odor/leak in the rear part of the vehicle (without a punctured fuel tank, hoses or pipes) or difficulty fueling fuel tank or fuel coming back up filler neck
VIN4APIN202010142020-11-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; SUSPENSION; ENGINE. Customer states oil leak from the engine Customer states MIL-on with P0556 "Customer states MIL-on with P11A1/P11A2/P11A3/P11A4/P11A5/P11A6/P11A7/P11A8/ P11A9/P11AA/P11AB/P11AC/P11AD/P11AE/P11AF/P11B0" Customer states rattle noise from under vehicle Customer states MIL-on with P0463 P2068 Customer states MIL-on, HPFP mounting bolts loose/broken Customer states clutch pedal makes noise No crank, no start Customer states seat memory inoperative Customer states both headlights are cracked
VIN4APIN202009162020-10-06. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE; ENGINE AND ENGINE COOLING. Customer states MIL-on with P0496 Customer states oil leak from the engine Customer states MIL-on with P0556 MIL-on P04F0 and/or P0441 Customer states oil leak from the engine Customer states MIL-on with P0111 "Customer states MIL-on with P11A1/P11A2/P11A3/P11A4/P11A5/P11A6/P11A7/P11A8/ P11A9/P11AA/P11AB/P11AC/P11AD/P11AE/P11AF/P11B0" Customer states rattle noise from under vehicle Customer states MIL-on with P0463 P2068 Customer states MIL-on, HPFP mounting bolts loose/broken Customer states clutch pedal makes noise No crank, no start Customer states both headlights are cracked
VIN4APIN202009112020-10-06. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY; ENGINE AND ENGINE COOLING. Customer states MIL-on with P0496 Customer states oil leak from the engine Customer states oil leak from the engine Customer states MIL-on with P0111 "Customer states MIL-on with P11A1/P11A2/P11A3/P11A4/P11A5/P11A6/P11A7/P11A8/ P11A9/P11AA/P11AB/P11AC/P11AD/P11AE/P11AF/P11B0" Customer states rattle noise from under vehicle Customer states MIL-on with P0463 P2068 Customer states MIL-on, HPFP mounting bolts loose/broken Customer states clutch pedal makes noise No crank, no start Customer states both headlights are cracked Wind noise from front doors
TT 45 18 032020-09-03. Service bulletin. SERVICE BRAKES; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM. Autonomous data event gathering
VOS-20-282020-09-03. Service bulletin. ELECTRICAL SYSTEM. This document outlines updates to the ODIS diagnostic software. Updates include corrected diagnostic test plans for the stated vehicles.
TT 91 20 092020-08-06. Service bulletin. ELECTRICAL SYSTEM. CarNet, No green light at PDI
VOS-20-232020-08-06. Service bulletin. ELECTRICAL SYSTEM. This document outlines updates to the ODIS diagnostic software. Updates include corrected diagnostic test plans for the stated vehicles.
TT 91 16 132020-07-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Apple Car Play Information
VIN4APIN202005142020-06-04. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS; ENGINE; ELECTRICAL SYSTEM. Customer states MIL-on with P0496 Customer states MIL-on with P2440 Customer states MIL-on with U0284 Customer states MIL-on with P02CC, P02CE, P02D0, P02D2, P02D4, and P02D6 P02D7 Customer states oil leak from the engine Customer states MIL-on, HPFP mounting bolts loose/broken No crank, no start Customer states both headlights are cracked

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