--- title: "SRS (Airbag) Modules: Understanding Mounting Tabs, Grounding, and Module Types" description: "SRS (Airbag) Modules: Understanding Mounting Tabs, Grounding, and Module Types" --- [Skip to content](https://info.myairbags.com/migration/internal-mab-ts/srs-airbag-modules-understanding-mounting-tabs-grounding-and-module-types#main-content) English Show submenu for translations ![MAB Logo white.png\]](https://info.myairbags.com/hs-fs/hubfs/MAB%20Logo%20white.png?height=40&name=MAB%20Logo%20white.png) Open main navigation Close main navigation - English Show submenu for translations - KB Home KB Home Internal MAB Tech Support - There are no suggestions because the search field is empty. 1. [MAB TS](https://info.myairbags.com/migration/internal-mab-ts?hsLang=en) 2. [Airbag Module](https://info.myairbags.com/migration/internal-mab-ts/airbag-module?hsLang=en) # SRS (Airbag) Modules: Understanding Mounting Tabs, Grounding, and Module Types Overview SRS (Supplemental Restraint System) airbag modules are secured to a vehicle using mounting tabs (or legs). These modules may have plastic or metal casings/tabs, and not all damage to tabs impacts their functionality or safety. This document explains: - The role of tabs and module grounding. - Differences between plastic vs. metal casing tabs/modules. - When a module is safe to reset and when it must be replaced. - Guidance for communicating with customers. --- Function of Mounting Tabs - Tabs serve to secure the module to the vehicle frame and provide grounding (in some cases). - Most modules have 2 to 4 mounting tabs. - Tabs do not affect internal reset functionality — but grounding does affect usability. --- Plastic vs. Metal Casing: Grounding Matters | | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Column Before - Insert Column After - Delete Column | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Column Before - Insert Column After - Delete Column | | --- | --- | --- | | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Row Before - Insert Row After - Delete Row | Module Casing Type | Impact of Broken Tab | | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Row Before - Insert Row After - Delete Row | Plastic Tab/Casing | Must be replaced if a tab is broken. These modules ground only through the tabs. A broken tab prevents proper grounding. | | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Row Before - Insert Row After - Delete Row | Metal Casing | If only 1 tab is broken, it's cosmetic only. The module can still be securely bolted down and grounded properly. | Important: Grounding is critical for module operation. Modules without proper grounding will not function, even if reset. --- Reset Policy Based on Tab Damage | | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Column Before - Insert Column After - Delete Column | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Column Before - Insert Column After - Delete Column | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Column Before - Insert Column After - Delete Column | | --- | --- | --- | --- | | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Row Before - Insert Row After - Delete Row | Tab Condition | Plastic Tab/Casing Module | Metal Casing Module | | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Row Before - Insert Row After - Delete Row | All tabs intact | ✅ Reset | ✅ Reset | | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Row Before - Insert Row After - Delete Row | 1 tab broken | ❌ Do not reset – Replace | ✅ Reset – Cosmetic only | | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Row Before - Insert Row After - Delete Row | 2 or more tabs broken | ❌ Do not reset – Replace | ❌ Do not reset – Cannot mount securely | --- Customer Communication Guidelines - Always document damage with images and ensure a public tech note is added. - Inform customer before reset if module is plastic and the plastic tab is broken – recommend replacement. - For metal modules with 1 broken tab: - Inform customer, proceed with reset, and note it is customer discretion to install. - If customer is unhappy with outcome: - Offer refund to maintain satisfaction, especially in rare cases. (This must be done through TS Rep) CS Should only create a ticket. CS rep should not guarantee refund, that is up to the tech. --- Quick Reference: Handling Broken Tabs | | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Column Before - Insert Column After - Delete Column | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Column Before - Insert Column After - Delete Column | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Column Before - Insert Column After - Delete Column | | --- | --- | --- | --- | | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Row Before - Insert Row After - Delete Row | Casing/Tab Type | Tabs Intact? | Action | | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Row Before - Insert Row After - Delete Row | Plastic w/ plastic covered tabs | Yes | ✅ Reset | | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Row Before - Insert Row After - Delete Row | Plastic w/ plastic covered tabs | No | ❌ Replace – Won’t Ground | | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Row Before - Insert Row After - Delete Row | Metal | Yes | ✅ Reset | | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Row Before - Insert Row After - Delete Row | Metal | 1 Broken | ✅ Reset – Cosmetic Only | | ![](https://info.myairbags.com/img/icons/dropdown-elipsis.svg) - Insert Row Before - Insert Row After - Delete Row | Metal | 2+ Broken | ❌ Replace – Unsafe Mount | ---   Summary - Plastic casing w/ plastic covered tabs= grounding through tabs → Broken tab = non-functional → Replace. - Metal casing = grounded via body → 1 broken tab = usable if securely bolted. - Always document, inform, and support customer decisions. Refund if needed in rare disputes.   Images of Modules Plastic casing with Plastic Tabs: ![Image](https://tettra-production.s3.us-west-2.amazonaws.com/f82977fca9b3d0623d88f410095981cc20364c49/cc6c8e3e5055810d5e1c1a74ad2e0aee5241569d/37d7c29bd0f113391befcd6e2be6160b610218dc/b0648cbb4818320eb8d093d41b5f9b90f51a2911/AYT5FClRCDXTjtbod8BfRrCpIJKIrQ4HEsz6WtS1.png)   Metal casing with Metal Tabs: ![Image](https://tettra-production.s3.us-west-2.amazonaws.com/f82977fca9b3d0623d88f410095981cc20364c49/cc6c8e3e5055810d5e1c1a74ad2e0aee5241569d/37d7c29bd0f113391befcd6e2be6160b610218dc/b0648cbb4818320eb8d093d41b5f9b90f51a2911/FQAmHhotCsEkCWamKAyxWthWHmUBXX5AgteGNrrg.png)     Plastic Casing with Metal Tabs: ![Image](https://tettra-production.s3.us-west-2.amazonaws.com/f82977fca9b3d0623d88f410095981cc20364c49/cc6c8e3e5055810d5e1c1a74ad2e0aee5241569d/37d7c29bd0f113391befcd6e2be6160b610218dc/b0648cbb4818320eb8d093d41b5f9b90f51a2911/0gvCdF4s1Bztpn2kBKmppOxwSFDouApDKa4wpH6L.png)   - [Airbag Module](https://info.myairbags.com/migration/internal-mab-ts/airbag-module?hsLang=en#main-content) - [Codes](https://info.myairbags.com/migration/internal-mab-ts/airbag-module?hsLang=en#codes) - [Seat Belt](https://info.myairbags.com/migration/internal-mab-ts/seat-belt?hsLang=en) - [Other Parts](https://info.myairbags.com/migration/internal-mab-ts/other-parts?hsLang=en#main-content) - [Steering Column Sensor](https://info.myairbags.com/migration/internal-mab-ts/other-parts?hsLang=en#steering-column-sensor) - [Plugs](https://info.myairbags.com/migration/internal-mab-ts/other-parts?hsLang=en#plugs) - [Rollover Bars](https://info.myairbags.com/migration/internal-mab-ts/other-parts?hsLang=en#rollover-bars) - [Occupant Weight Sensor (OPDS)](https://info.myairbags.com/migration/internal-mab-ts/other-parts?hsLang=en#occupant-weight-sensor-opds) - [Airbags](https://info.myairbags.com/migration/internal-mab-ts/other-parts?hsLang=en#airbags) - [Impact Sensors](https://info.myairbags.com/migration/internal-mab-ts/other-parts?hsLang=en#impact-sensors) - [Clockspring](https://info.myairbags.com/migration/internal-mab-ts/other-parts?hsLang=en#clockspring) [![MyAirbags Round Logo](https://info.myairbags.com/hs-fs/hubfs/logo%20(3).png?width=221&height=58&name=logo%20(3).png "MyAirbags Round Logo")](http://upfix.com) upfix.com Help Center Copyright © 2026, MyAirbags