Can A Breathalyzer Mess Up Your Car

Ignition interlock devices (IIDs), commonly known as breathalyzers for cars, are designed to prevent drunk driving. However, concerns are growing about their potential to cause mechanical or electrical issues in vehicles. Could this mandated safety measure inadvertently damage the very cars they're intended to safeguard?

This article explores the potential for IIDs to negatively impact vehicle performance. We will delve into the documented cases, expert opinions, and technical considerations surrounding this issue. The aim is to provide a balanced perspective on whether IIDs are truly a risk to automotive health.

Potential Mechanical and Electrical Impacts

IIDs are wired directly into a vehicle's ignition system. Installation involves tapping into the car's electrical system, which can, in some instances, lead to complications.

Poor installation is a major factor cited by mechanics and consumers who report problems. Incorrect wiring or loose connections can drain the battery, trigger false alarms, or even prevent the car from starting.

Battery Drain Concerns

One of the most frequently reported issues is battery drain. IIDs constantly draw a small amount of power to remain operational, even when the car is turned off.

While the draw is intended to be minimal, older or weaker batteries can be quickly depleted. This is particularly problematic in vehicles that are not driven regularly.

"The constant parasitic drain can accelerate battery degradation," explains John Davidson, a certified mechanic with 20 years of experience. "Especially in colder climates, this can lead to premature battery failure."

Electrical System Interference

IIDs introduce additional electronic components into a car's intricate electrical system. This can sometimes interfere with other systems, especially in newer, more technologically advanced vehicles.

Reports suggest potential conflicts with onboard computers, sensors, and even safety features like airbags and anti-lock brakes. However, documented cases of such severe interference remain relatively rare.

It's crucial to note that proper installation and high-quality devices are paramount to minimizing these risks.

The Installer's Role and Device Quality

The National Highway Traffic Safety Administration (NHTSA) sets standards for IID performance, but installation quality is largely dependent on the individual technician.

A poorly trained or careless installer can easily damage wiring harnesses or create shorts. This can lead to a cascade of electrical problems.

Choosing a reputable installer with proven experience is vital. Verifying their certifications and reading customer reviews can help mitigate the risk of faulty installation.

Furthermore, the quality of the IID itself plays a significant role. Inferior devices may be more prone to malfunctions and electrical interference.

States often approve specific IID models that meet certain performance and safety criteria. Consumers should ensure their device is on the approved list.

Perspectives from the Industry

IID manufacturers often downplay the potential for damage. They emphasize the safety benefits of preventing drunk driving and argue that their devices are rigorously tested.

"Our devices are designed to be minimally invasive and compatible with a wide range of vehicles," states a representative from Smart Start, a leading IID provider. "Proper installation is key to ensuring optimal performance and preventing any potential issues."

However, independent mechanics and consumer advocates maintain that the risk, though perhaps small, is real. They argue for greater transparency and stricter oversight of the IID industry.

"The potential for damage is undeniable," says Sarah Miller, a consumer rights attorney. "Consumers should be fully informed of the risks and have recourse if their vehicle is harmed by an IID."

Moving Forward: Mitigation and Prevention

Several steps can be taken to minimize the risk of IID-related vehicle damage. First and foremost, choose a certified and experienced installer.

Regular vehicle maintenance is also crucial. Keeping the battery in good condition and addressing any existing electrical issues can prevent problems from being exacerbated by the IID.

Finally, consumers should carefully document the installation process and keep records of any subsequent vehicle problems. This will be invaluable if a warranty claim or legal action becomes necessary.

While IIDs play a vital role in preventing drunk driving, understanding their potential impact on vehicle health is essential. By taking proactive measures, consumers can minimize the risks and ensure that these safety devices do not inadvertently cause more harm than good.