June 18, 2026 — A recent incident report details a concerning malfunction with a 2024 Coolster 110cc ATV, model Mountopz ATV-3050C, which allegedly accelerated to full throttle on its own, causing an adult to be pulled to the ground and injured. The incident raises serious questions about the safety mechanisms and throttle control systems of the ATV, particularly as the remote kill switch reportedly failed to prevent the uncontrolled acceleration.
Product Details
Incident Overview
According to the incident report dated June 1, 2026, a consumer purchased a new 2024 Coolster 110cc ATV from Four Seasons Power Sports on May 2, 2026. The ATV was used only three times, for a total of less than one hour, before the serious incident occurred on Saturday, May 9, 2026.
On the day of the incident, the consumer’s son was riding the ATV within a designated boundary, allowing for close supervision and the potential use of a remote kill switch if needed. When the son rode past the established boundary, the parent attempted to stop the ATV by pushing the kill switch on the remote control. While the ATV did stop momentarily, the son reported that it “wouldn’t slow down and he couldn’t stop” prior to the remote kill switch activation.
Upon attempting to restart the ATV, it immediately and unexpectedly surged to full throttle on its own. The powerful surge pulled the parent to the ground, dragging them and causing injuries. The parent was able to gain some control by pulling the ATV up onto its back wheels, which allowed them to reach and activate the kill switch on the handlebars, finally stopping the vehicle.
Following the incident, on Monday, May 11, 2026, the consumer contacted the dealer to report the critical safety issue and request a refund. The dealer advised that no action could be taken until the ATV was brought in for an inspection by a certified mechanic. However, the consumer chose not to alter the ATV’s state and pushed it back into the garage, leaving it untouched and unstarted, specifically to preserve its condition for a report to the CPSC.
Safety Concerns
This incident with the Coolster Mountopz ATV-3050C highlights several severe safety concerns:
- Uncontrolled Acceleration: The primary hazard is the ATV’s alleged ability to accelerate to full throttle without rider input. This can lead to a complete loss of control, putting the rider and anyone nearby in extreme danger.
- Kill Switch Malfunction: The report indicates that the remote kill switch did not fully prevent the hazard, as the ATV still experienced uncontrolled acceleration after an attempted restart. The effectiveness of safety features like kill switches is paramount, especially on ATVs designed for younger riders.
- Severe Injury Risk: Uncontrolled vehicles pose an immediate danger of collisions, rollovers, and direct impact, leading to a high potential for severe injuries such as abrasions, lacerations, broken bones, head trauma, and even fatalities. In this case, the adult was dragged and injured.
- Risk to Children: While an adult was injured in this incident, 110cc ATVs are often used by children. A similar malfunction involving a child could lead to even more catastrophic outcomes due to their lesser physical strength, reflexes, and judgment to react appropriately.
- Property Damage Potential: An ATV operating at full throttle uncontrollably can cause significant damage to itself through impact, as well as to surrounding property such as fences, vehicles, or structures.
- Reliability of Safety Mechanisms: The incident calls into question the reliability of the ATV’s electronic and mechanical safety systems, including the throttle assembly and kill switch functions.
What Consumers Should Do
If you own a Coolster Mountopz ATV-3050C or a similar Coolster 110cc ATV, please take the following actions:
- Immediately Cease Use: If you experience or suspect any issue with uncontrolled acceleration or kill switch malfunction, immediately stop using the ATV and do not attempt to restart it.
- Inspect Your Product: Carefully inspect your ATV for any signs of damage to the throttle cable, throttle assembly, or kill switch wiring. Do not operate the ATV if you find any damage or suspect a malfunction.
- Prevent Further Incidents: Do not allow anyone, especially children, to ride the ATV if there is any suspicion of a throttle control or kill switch defect. Secure the ATV to prevent unauthorized use.
- Report the Incident: If you have experienced a similar incident or have concerns, it is crucial to report it to the U.S. Consumer Product Safety Commission (CPSC) at www.cpsc.gov.
- Contact the Retailer/Manufacturer: Reach out to the retailer where you purchased the ATV and the manufacturer to report the issue and inquire about potential repairs, replacements, or refunds. Document all communications.
- Preserve Evidence: If an incident has occurred, do not alter the product’s condition. Preserve it as is, take detailed photos or videos, and document the circumstances surrounding the incident.
Manufacturer’s Response
No manufacturer response has been provided in the incident report.
Legal Help Available
If you or a loved one has been injured by a defective product or suffered property damage due to a product malfunction, you may be entitled to compensation. The experienced product liability attorneys at Farzan Law understand the complexities of defective product cases and can help you navigate the legal process. Farzan Law is a California based Personal Injury law firm focusing on protecting the rights of those wrongfully injured.
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Note: This information is based on incident reports provided by the U.S. Consumer Product Safety Commission. If you find information that is incorrect, please contact us immediately so we can correct the post to reflect accurate information.
Disclaimer: The information provided in this post is not intended to be legal or medical advice. This article is based on publicly available incident reports. The incidents mentioned have not necessarily been independently verified or adjudicated.