# Service bulletin Circular 24GB

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.

- Type: Service bulletin
- NHTSA id: 10180053
- Published by NHTSA: 2020\-10\-06
- Manufacturer's number: Circular 24GB
- Manufacturer's date: 2020\-09\-16
- NHTSA component: ENGINE; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:MANUAL TRANSMISSION

## NHTSA's summary

Volkswagen is providing an Engine and Transmission Control Module \(ECM/TCM\) software update to address elevated tailpipe emissions that were found during vehicle testing. This software will also improve drivability and provide other diagnostic improvements.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10180053-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10180053-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Engine, Transmission and driveline, Manual transmission, Software

## Vehicles listed

- 2018 to 2020 VOLKSWAGEN TIGUAN

## Other bulletins for the same vehicles and component

- [TT 91 24 01](/bulletins/10249136.md), 2024-02-06, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Addressing Cybersecurity or Vehicle Hack concerns
- [VOS\-23\-21](/bulletins/10238400.md), 2023-07-10, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. This communication is a notice for software changes with the ODIS program for specific cars.
- [V3416022034406\_6](/bulletins/10238309.md), 2023-07-10, Service bulletin: POWER TRAIN:MANUAL TRANSMISSION; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Noise Diagnostic for Manual Transmission vehicles.
- [VCarNetCE](/bulletins/10238302.md), 2023-07-10, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Notifying customers they can take advantage of complimentary safe and secure after their complimentary software update
- [V011812201460319](/bulletins/10238301.md), 2023-07-10, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Software Version Management \(SVM\) instruction.
- [VOS\-23\-14](/bulletins/10238206.md), 2023-07-10, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. This communication is a notice for software changes with the ODIS program for specific cars
- [V3416022034406\_5](/bulletins/10218953.md), 2022-09-01, Service bulletin: POWER TRAIN:MANUAL TRANSMISSION. Manual transmission noise diagnostic assistance
- [VOS1603](/bulletins/10213875.md), 2022-06-13, Service bulletin: UNKNOWN OR OTHER; ELECTRICAL SYSTEM:SOFTWARE. Release Notes Supplement.
- [VOS1602](/bulletins/10213874.md), 2022-06-13, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; UNKNOWN OR OTHER. Mandatory Installation from Web\-Server.
- [VOS1601](/bulletins/10213873.md), 2022-06-13, Service bulletin: UNKNOWN OR OTHER; ELECTRICAL SYSTEM:SOFTWARE. Mandatory Installation from Web\-Server.

JSON: [/v1/bulletins/10180053](/v1/bulletins/10180053)

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