WenmarOpen by Wenmar Pro

Service bulletin TB-01-09-20

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10033330
Published by NHTSA2010-08-09
Manufacturer's numberTB-01-09-20
Manufacturer's date2009-12-18
NHTSA componentELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

NHTSA's summary

VOLKSWAGEN: UPDATE PROGRAMMING, TCM, HARSH DOWNSHIFT AFTER EXTENDED HIGHWAY DRIVING. INTERNAL TRANSMISSION PRESSURE DECREASE IN C1 CLUTCH DUE TO ACCUMULATED AIR IN THE C1 OIL CIRCUIT. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Transmission and driveline, Automatic transmission, Software, Transmission control module

Vehicles listed
VOLKSWAGEN PASSAT2007

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
Edition1152023-10-02. Service bulletin. VW Elsa Newsletter
Edition622023-09-18. Service bulletin. VW Elsa Newsletter
TB0114072023-08-28. Service bulletin. Software Version Management
TB0113372023-08-28. Service bulletin. Update Programming, ECM, TCM Software Update and Valve Body Replacement for Harsh Up - Down Shift from Transmission when Cold
TB0113362023-08-28. Service bulletin. Update Programming, ECM, TCM Software Update and Valve Body Replacement for Harsh Up - Down Shift from Transmission when Cold
Guide2023-08-14. Service bulletin. P0102, P1128, P1296 - WA front oxygen sensor faults
VOS-22-072022-03-04. Service bulletin. "Instructional document regarding the installation of a hotfix for the ODIS service software. Hotfix is to be used during the following actions: Brake Electronics (ABS) A3 Passat NMS Software Configuration/Coding
A0021552011732122022-01-05. Service bulletin. This bulletin contains general instructions for software updates.
V0118122014603172021-07-02. Service bulletin. Software Version Management (SVM)
TT 37-18-02ss12019-06-12. Service bulletin. Addressing Transmission Fluid Temperature Sensor Concerns, update authing system metadata.