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Service bulletins for the 2018 Volkswagen Tiguan

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.

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

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

Bulletins, newest first
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.
Circular24GBREV12020-11-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; ELECTRICAL SYSTEM:SOFTWARE. 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. Update to vehicle count and updated claiming instructions due to additional criteria X4.
V9119032056716-22020-11-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Update to software version management (SVM) radio programming due to corrupted data server providing different software number rather than what the bulletin stated.
VOS-20-332020-10-06. Service bulletin. ELECTRICAL SYSTEM. This document outlines updates to the ODIS diagnostic software. Updates include corrected diagnostic test plans for the stated vehicles.
Dealer 24GB2020-10-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). 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.
Circular 24GB2020-10-06. Service bulletin. ENGINE; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:MANUAL TRANSMISSION. 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.
TT 45 18 032020-09-03. Service bulletin. SERVICE BRAKES; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM. Autonomous data event gathering
3CN065760RSINST2020-08-06. Service bulletin. ELECTRICAL SYSTEM. Remote start installation instructions
VOS-20-202020-07-07. 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
TT 91 18 062020-06-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Apple car play function.
V9118012049194_32020-06-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Updated Software download source has changed to SD creator.
VOS-20-152020-05-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This document outlines updates to the ODIS diagnostic software. Updates include corrected diagnostic test plans for the stated vehicles.
TT 97 20 01 SS12020-05-07. Service bulletin. ELECTRICAL SYSTEM. Voltage Drop Testing. Updated for picture clarity.
V2719022033978_82020-05-07. Service bulletin. ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR. Generator replacement, updated to include model years 2020 & 2021
TT 90 20 012020-04-02. Service bulletin. ELECTRICAL SYSTEM. Tip to address coding
TT 66 20 012020-04-02. Service bulletin. ELECTRICAL SYSTEM. Trailer Module coding to address function concerns.
TT 01 20 022020-03-05. Service bulletin. ELECTRICAL SYSTEM. Repair recommendation for injector circuit faults
TT 01 20 012020-03-05. Service bulletin. ELECTRICAL SYSTEM. ERP fault information.
TT 48 20 012020-03-05. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY; EQUIPMENT. Remote start diagnostic information.
VOS-20-052020-02-08. 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 122020-02-08. Service bulletin. ELECTRICAL SYSTEM. Remote start diagnostic information.
Microswitchcomm2020-02-07. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Micro switch customer call list.

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