How to Deactivate Seatbelt Warning Chime on Skoda Octavia Mk2 (2009) Iamcarhacker

By Juraj · Last updated August 15, 2026

This guide shows how to disable the seatbelt warning chime and dashboard reminder light on a Skoda Octavia Mk2 (2009) by adjusting the long coding of the instrument cluster (control module 17) with a Thinkdiag2 scanner.

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Used tool in this guide

Thinkdiag2

most advanced bluetooth OBD2 scanner for smartphone users with full-system access and coding

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Video: How to deactivate the seatbelt warning chime on Skoda Octavia Mk2

This video shows how to step through the menus on a Thinkdiag2 (or any equivalent VAG-capable scanner with long coding), find byte 1 in module 17, and change the seatbelt warning bit from ON to OFF.

Supported vehicles

Vehicle
octavia-mk2

Technical overview

Vehicle	Skoda Octavia Mk2 (1Z)
Year	2009 (works on 2004–2013 production)
System	17 — Instrument Cluster (Kombiinstrument)
Procedure type	Long coding modification
Difficulty	Easy
Time required	~5 minutes
Prerequisites	Charged 12V battery, ignition ON (engine off is fine), OBD2 port accessible under the steering column

Step-by-step procedure

Connect the Thinkdiag2

Connect the Thinkdiag2 to the OBD2 port (lower left of the steering column).

Turn ignition ON (engine off is fine)

Start a new session

Start a new session in the app and choose Skoda, or let the scanner detect the VIN automatically.

Let the scanner read the modules

Let the scanner connect to the car and read the module list.

Go to System selection

Select 17 — Instrument Cluster

Open Coding / Long Coding

Note down the current coding

Read the current long coding string and note it down before changing anything.

Edit byte 01

Edit byte 01. In our example: 11 0E 01 (seatbelt warning ON) → change to 11 0C 01 (seatbelt warning OFF).

Write the coding

Save / write the coding to the cluster.

Check the dash

With the seatbelt unbuckled, the dash icon disappears right after saving.

Clear DTCs and close the session

Clear any DTCs and close the session.

Seatbelt warning is now off.

Alternative tools

Roundup5 Best OBD2 Scanners for VW/Audi/Skoda/Seat (Tested on Real VAG Cars)Read the guide

Legal & safety notice

This procedure modifies vehicle system settings through the control module. Incorrect use may cause faults or warning lights. Always ensure the vehicle is secured and follow proper safety procedures.