Consumer Enforcement Intensifies for EV Businesses as Complaint Cases Rise and Labeling Expectations Increase
Thailand’s consumer protection regulator has signaled a more assertive enforcement approach toward the electric vehicle (EV) sector through two related developments. First, it has indicated its readiness to initiate legal proceedings on behalf of consumers in appropriate EV dispute cases. Second, it has issued new guidance consolidating labeling requirements for automobiles, electric vehicles, and used cars.
Although neither development introduces new legislation, together they demonstrate heightened regulatory scrutiny of the automotive industry and provide valuable insight into the regulator’s current enforcement priorities. Manufacturers, importers, distributors, dealers, service centers, and online vehicle marketplaces should treat these developments as an opportunity to reassess their compliance and dispute management frameworks.
Increased Enforcement Risk from EV Consumer Complaints:
The Office of the Consumer Protection Board (OCPB) has reported a significant number of consumer complaints relating to electric vehicles, with a substantial portion already progressing through legal procedures. The agency has confirmed that it has begun issuing formal demand letters in cases supported by sufficient documentation and has reiterated its statutory authority to commence legal proceedings on behalf of consumers where the legal requirements are satisfied.
This represents an important enforcement signal. Rather than merely facilitating mediation between consumers and businesses, the regulator has indicated its willingness to escalate suitable cases into formal litigation.
The risk is particularly significant where multiple complaints arise from the same product model, manufacturing issue, software defect, battery performance concern, warranty practice, or recurring after-sales service problem. A pattern of similar complaints may increase regulatory attention and expose businesses to coordinated enforcement actions, representative litigation, or broader product liability claims.
Businesses operating within the EV supply chain should therefore review whether existing complaint-handling mechanisms are capable of identifying systemic issues before they evolve into regulatory investigations or court proceedings.
Strengthened Expectations for Vehicle Label Compliance:
Separately, the OCPB has published an electronic handbook consolidating labeling requirements applicable to automobiles, electric vehicles, and used vehicles.
The publication emphasizes information that consumers commonly rely upon when making purchasing decisions, including battery specifications, driving range, testing standards, pricing information, warranty coverage, and the disclosure of material vehicle history for used vehicles.
Although the handbook itself is not legally binding, it provides a clear indication of the regulator’s compliance expectations. It reinforces that automobiles and electric vehicles remain controlled labeling products under consumer protection law and that incomplete, inaccurate, or misleading information may expose businesses to regulatory enforcement.
The guidance also illustrates that compliance extends beyond physical labels. Regulators are increasingly likely to examine whether information presented across all customer-facing channels remains accurate and consistent.
Businesses should therefore review:
- labels displayed at dealerships and points of sale;
- information published on corporate websites and online marketplaces;
- brochures and sales presentations used by sales personnel;
- representations concerning driving range and the testing methodology used, such as WLTP or NEDC;
- battery capacity, expected degradation, warranty scope, and warranty exclusions;
- disclosures relating to collision history, flood damage, major repairs, and battery replacement for used vehicles; and
- consistency between information published by manufacturers, importers, dealers, and affiliated sales channels.
Claims relating to vehicle performance, battery longevity, operating costs, sustainability, resale value, or environmental benefits should be supported by appropriate technical evidence and internal documentation before publication.
Litigation Readiness and Document Preservation:
These developments also highlight the importance of litigation preparedness.
Businesses should consider establishing a centralized process for collecting and analyzing customer complaints to determine whether recurring issues indicate broader product or service risks.
At the same time, organizations should preserve relevant evidence, including:
- sales documentation;
- warranty records;
- repair histories;
- technical diagnostic reports;
- replacement part records;
- communications with customers;
- call center recordings;
- email correspondence;
- mobile application records; and
- connected vehicle diagnostic data.
Where disputes may reasonably be anticipated, organizations should consider implementing litigation hold procedures to reduce the risk of inadvertent deletion of potentially relevant evidence.
Companies should also review contractual risk allocation among overseas manufacturers, importers, dealers, distributors, and service centers, including indemnity provisions and responsibilities for handling product defects, recalls, warranty claims, and consumer litigation.
Data Protection Considerations:
Responding to consumer complaints frequently requires the collection and sharing of customer information, vehicle service histories, location information, and connected vehicle diagnostic data. Much of this information may constitute personal data under the Personal Data Protection Act.
Organizations should ensure that internal investigations and litigation response procedures incorporate appropriate data governance measures, including clearly defined access controls, documented processing purposes, retention periods, and secure mechanisms for sharing information with external counsel, technical experts, and other authorized parties.
Integrating consumer protection compliance with data governance can reduce both regulatory and litigation risks while supporting more effective dispute management.
Key Takeaways:
- Organizations should strengthen complaint management, evidence preservation, document retention, contractual risk allocation, and data governance processes to prepare for increased regulatory scrutiny and potential consumer litigation.
- The OCPB’s indication that it is prepared to commence litigation on behalf of consumers represents a significant escalation in consumer protection enforcement affecting the EV industry.
- Businesses should not view repeated consumer complaints as isolated customer service matters but as potential regulatory and litigation risks requiring centralized oversight.
- The newly published vehicle labeling handbook, although not legally binding, demonstrates higher regulatory expectations regarding the accuracy, completeness, and consistency of vehicle-related information across all sales channels.
- Automotive businesses should review advertising claims, warranty disclosures, battery-related representations, and used vehicle disclosures to ensure they are fully substantiated.
Author: Panisa Suwanmatajarn, Managing Partner.
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