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Service bulletin TT 27 18 02

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 id10149856
Published by NHTSA2018-12-03
Manufacturer's numberTT 27 18 02
Manufacturer's date2018-08-24
NHTSA componentELECTRICAL SYSTEM:12V/24V/48V BATTERY

NHTSA's summary

Battery replacement type information.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, 12-volt battery

Vehicles listed
VOLKSWAGEN ATLAS2018, 2019
VOLKSWAGEN BEETLE2018
VOLKSWAGEN BEETLE CONVERTIBLE2018 (the catalog's model; the bulletin names a series or trim of it)
VOLKSWAGEN GOLF2018, 2019
VOLKSWAGEN GOLF R2018, 2019
VOLKSWAGEN GOLF SPORTWAGEN2018, 2019
VOLKSWAGEN GTI2018 to 2019
VOLKSWAGEN JETTA2018, 2019
VOLKSWAGEN PASSAT2018, 2019
VOLKSWAGEN TIGUAN2018, 2019

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
V2719012011894242023-08-04. Service bulletin. Battery Testing and Charging using Midtronics VAS6161 and or GRX3000 Vas Charger
TT 27 20 02_32023-06-06. Service bulletin. Battery adaptation procedure when battery label is missing.
V2715032016076112022-04-06. Service bulletin. Discharged Battery, Diagnosis for excessive current draw.
TT 27 20 02_12021-01-08. Service bulletin. Battery Id for testing
TT 27 19 032020-07-07. Service bulletin. Diagnostic for no crank concern.
Circular26N6REV12020-06-04. Service bulletin. Over time and mileage, the factory-installed catalyst may not perform as required. If the effectiveness of the catalyst is reduced, this may result in increased tailpipe emissions and the vehicle could fail an emissions (IM) inspection. Updated claiming instructions to include connecting battery charger. Updated parts return core information in Section E.
Circular26M4REV12020-06-04. Service bulletin. Over time and mileage, the factory-installed catalyst may not perform as required. If the effectiveness of the catalyst is reduced, this may result in increased tailpipe emissions and the vehicle could fail an emissions (IM) inspection. Updated claiming instructions to include connecting battery charger.
TT 01-19-082019-12-06. Service bulletin. Battery voltage high end requirement.
19TiguanSrvXprs2019-12-06. Service bulletin. "2.pL Turbo: DGUA REMOVED: Oil Filter (through 04/28/18) Miscellaneous: Dugst and Pollen filter: REMOVED Harmful Substance Filter: REMOVED Rear (REMOVED) from Battery: 000 915 105 FC Batteries 5K0 915 105*, 1S0 915 105*, & 6R0 915 105* :REMOVED Battery: Updated part number"
19PasstServXprs2019-12-06. Service bulletin. "2.0L Turbo: Changed to DDSA/DDSB Air filter w/connecting parts: Updated part number 2.5L Turbo: CBUA, CCCA REMOVED all components Miscellaneous: Wiper Blade - Left: Updated part number Wiper Blade - Right: Updated part number Battery: Updated part number"