The statements below are Maurice Blackburn’s account of this case. They reflect allegations or the firm’s position and have not been determined by a court unless a settlement or judgment is noted.
Latest update
The parties have both now filed their pleadings in this proceeding, which documents set out the Applicant’s claims in the proceeding and GMANZ’s response to those claims. The current step in the proceeding is discovery, which involves the exchange of documents between the parties that are relevant to the issues in the case. The process and review of discovery is an important stage in the proceeding as class action proceedings rely on documents to establish the claims at trial, both by way of submitting the documents as evidence in the proceeding and by way of having experts give evidence in court which relies on such documents. GMANZ has provided its discovery to Maurice Blackburn, and the Applicant has now made an application for further data discovery. The hearing of the Applicant’s discovery application is scheduled for 22 October 2026 before a Registrar of the Federal Court. We continue to expect that it will be some time before a trial date is listed as a number of important and time-consuming steps in this case will need to take place before the trial can be held. Regular updates on the class action will be published on our website every six months, and you can follow our social media accounts to get alerted to updates.
Source: Maurice Blackburn
About This Case
The Holden Transmission Class Action has been brought on behalf of people who acquired certain models of Holden vehicles in Australia between 1 January 2011 and 24 December 2024, equipped with a:
GM 6L 45 transmission;
GM 6L 50 transmission; or GM 6L 80 transmission.
The action alleges that the transmission systems in the Affected Vehicles are defective due to a design fault in the Torque Converter and Torque Converter Clutch. As a result of the alleged defect, the Affected Vehicles have a propensity to experience various problems including intermittent transmission shudders, excessive vibrations, harsh gear shifts, leakage of Automatic Transmission fluid, accelerated degradation of the components of the transmission system and greater servicing requirements.
The class action alleges that GMANZ failed to comply with the guarantee of acceptable quality under the Australian Consumer Law and engaged in misleading and deceptive conduct.
The class action seeks to recover compensation for loss and damage on behalf of consumers who acquired the Affected Vehicles. It does not seek to claim compensation for loss or damage which is not related to the transmission system.
Source: Maurice Blackburn
Who May Be Eligible
You are eligible to register if you acquired, including by way of purchase, exchange, lease or hire-purchase, one or more of the Affected Vehicles shown above in Australia between 1 January 2011 and 24 December 2024. You can still register for the class action if: you have sold the vehicle; you bought the car second-hand other than by way of sale by auction; the vehicle has been written off; or you acquired an Affected Vehicle but have not experienced any problems with it. If you have sold your vehicle or intend to sell your vehicle, please refer to the FAQ “ If I sell, or have sold, my vehicle, will this affect the money I receive in this class action? ” below. This FAQ provides important information regarding how the sale of your vehicle may affect your claim.
Source: Maurice Blackburn
How to Register
You do not need to register or sign up to be a group member in the class action. However, we would encourage you to register so that we have the details of your claim.
Source: Maurice Blackburn
Frequently Asked Questions
What is a class action?
A class action is a legal proceeding where seven or more people have claims against the same individual or corporation in respect of, or arising out of similar circumstances, such that their claims give rise to a substantial common issue of law or fact. Where these criteria are met, class action proceedings can be commenced by one or more of those people on behalf of some or all of them. The class action process is intended to save time and expense and avoids the need for the court to determine common issues of fact or law more than once. It enables disputes and claims involving large numbers of people to be resolved through a single case.
Do I need to register or sign up to be a group member in the class action?
You do not need to register or sign up to be a group member in the class action. However, we would encourage you to register so that we have the details of your claim. Regular updates on the class action will be published on our website every six months, and you can follow our social media accounts to get alerted to updates.
How much does it cost to join the class action?
Signing up to this class action will not expose you to any upfront costs. All costs in the proceeding will be borne by Maurice Blackburn and the litigation funder, unless and until there is a successful outcome in the class action. If there is a successful outcome, any costs payable by or to Maurice Blackburn or to the litigation funder will be deducted from, and will not exceed, any compensation you are entitled to receive. All such costs are required to be considered and approved by the Court.
What will it cost me if the class action is not successful?
Nothing. As a member of the class (and not the Representative Applicant, in whose name the case has been brought), an adverse costs order cannot be made directly against you in respect of the determination of the common issues in the class action. The litigation funder has agreed to be responsible for paying any adverse costs ordered in the class action.
Source: Maurice Blackburn
Disclaimer: This information is sourced from Maurice Blackburn. It is provided for general information only and does not constitute legal advice. Always verify details with the original source before taking any action.
Legal disclaimer: Information on this page is general in nature and does not constitute legal advice. ClaimBar tracks class action settlements and provides updates. Always seek professional legal advice for your specific circumstances.
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