Guardian Interlock provides ignition interlock systems (also known as "blow and go" or "car breathalzyer" for people who need or want them after a DUI/DWI arrest. We provide high quality services and devices to make the process of installing and using an interlock as easy as possible.
Guardian Interlock (guardianinterlock.com) has 813 customer reviews on Five Star Index, with an average rating of 4.0 out of 5.
Also known as
guardianinterlock.com
Website
guardianinterlock.com
Category
Auto Parts & Wheels
Listed on Five Star Index
2026
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The company replied to 49% of reviews.
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Most recent review: October 2026.
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The Technician and his staff did not show me the training video or training booklets. They were running and hour behind . There was a restroom but nowhere to wash your hands. So I had to use hand sanitizer, which gave me a warning when I used the new interlock system. They were not speaking English, which made me feel uncomfortable. There should be at least 2 locations in Las Vegas. The one here is in an unsafe neighborhood.
Response from Guardian InterlockJul 2, 2020
We apologize for the inconvenience you experienced at your installation appointment. Someone from the Guardian management team is looking into this and will be in contact with you shortly to see how we can best assist you.
DR
Daniel R.
New equipment or release of program
For being a sophisticated piece of equipment it sure has many faults. When I got this device installed the techs gave me numerous ways of items that have alcohol in them like mouthwash and colognes, which makes sense. Then they went off saying you can’t eat candy or gum due to the candy coatings containing alcohol? Or eating foods with yeast in them like pizza and breads? Like the yeast can ferment that fast into alcohol by consumption. Maybe if it was raw yeast so I’m not sure why the techs explained this. Then I had a couple warnings which really makes me very uneasy. I called in to ask what’s going on n the techs explained it could be the device was “hot” physically which it was not, or it could of been something I ate or drake, which I had not consumed any liquid or food that day! So how can this device that is only supposed to detect alcohol can cause so many false negatives and still be ok with state compliance? It feels like a setup for failure with and inaccurate defective device. I’m trying to adhere to restrictions and I do not want a malfunctioning device causing errors to my success of completion of program.
Response from Guardian InterlockJun 19, 2020
Unfortunately, our devices' settings are dictated by state regulations, so the fail readings on our devices are outside our control. Please note that the ignition interlock device will register any trace of alcohol from any source containing it - this is how the device effectively ensures an impaired individual is not able to start a vehicle, and how we are able to confidently state the Guardian ignition interlock is fulfilling its purpose. We advise in our training manuals, training videos, and in person when our clients install the device - to be mindful of testing right after eating, drinking, using mouthwash, etc., as doing this can potentially register a fail and will require the device to be reset.
Someone will be reaching out shortly to see how we can assist you.
AS
Alexandra S.
WORST COMPANY I HAVE EVER DELT WITH IN MY LIFE!!!
It is next to impossible to get ahold of anybody to get any issues resolved! I have been told several times in the past a supervisor would get back in touch with me within 24 to 48 hours! A supervisor never calls back! They dont put nesecarry notes in the accounts! Half the time they cant even find my account or pull up my account! If there are any issues with my guardian interlock device I know to expect to have to deal with them for at least 2 weeks before having any resolution which is ridiculous!!! I have had so many problems with the guardian handsets I have had!!! They have been stuck on loop and buzzing! I have blown to start my car and it has been stuck on the screen to analyze for over half an hour before causing me to be late to an appointment! I have had to pull over on the side of highways countless times because the sound for the rolling retest is so quiet and hard to hear I have missed quite a few of them! The handset will scream loudly at you to pull over if you have missed a rolling retest but not to notify you that you need to do another rolling retest! It is very scary having to pull over on the side of the highway with my 2 year old daughter in the car to restart my car due to this issue! I think have to pay $35 to service my handset because it is so quiet and hard to hear! That makes no sense that I have to dish out all this extra money because their equipment is horrible and so quiet! I had a lifesafer interlock and had no issues missing rolling retests because it actually notifies you so you can actually hear it! I would have kept the lifesafer interlock if they had a service center close to me even though their customer service is just as horrible and ridiculous as guardian! At least with them I wasnt having to pull my car over on the side of the highway to restart it due to the device being so quiet when a rolling retest was required!
Either which way I have had so many issues with guardian interlock it has by far been the worst company in have ever felt with in my life!!! I have only dealt with one supervisor and one customer service representative that was actually good and helpful and resolved my issue, but the down fall to that was it took about 2 weeks to be able to actually get in touch with or speak with this supervisor! That is a ridiculous amount of time especially when it comes to time-sensitive matter because you only have 30 days on an interlock device and then you have less days if anything happens with these devices before you get locked out of your car! With this company being required to handle time sensitive matters they sure do take their sweet time and dont make any of the issues urgent to fix on their behalf!
I will be writing up a statement to take to better business bureau with all of the issues I had endured with this company! It should not be this stressful to do the right thing, be responsible, and take care of my priorities that are court ordered!
Response from Guardian InterlockJun 3, 2020
I'm very sorry to hear of your experiences with our customer service team as well as hardships with your interlock device. Someone from the LifeSafer management team is looking into this and will be in contact with you shortly to see how we can help you through this difficult time.
BG
britne G.
I am very frustrated by this device
I am very frustrated by this device. I follow the operating instructions fully and constantly get a "ABORT" message. It's very frustrating to try to operate a vehicle, especially with children when it takes me over 15 minutes just to get it started. I will be switching to a lifesaver device.
Response from Guardian InterlockMay 21, 2020
We’re sorry to hear you have experienced a difficult time with your Guardian device. We want to make sure you are confident and feel safe when you are on the road. Someone from our team will be in touch shortly to see how we can help.
JL
Jonathan L.
Dealing with Guardian Interlock was the…WORST EXPERIENCE OF MY LIFE
Dealing with Guardian Interlock was the Worst Experience of my Life...
I was only required to use device an IID for 6 months. Upon completion of my 6 months, I contacted Guardian to send me my release paperwork. Guardian Interlock HQ refused to release my certification of completion to the courts. They added 2 months to my time with the device in my vehicle and made me pay for those additional 2 months of fees. I called their service line everyday for a month and was constantly hung up or transferred to a dead line. All I needed was one simple release form. I never raised my voice or was rude, their customers service department just acted this way.
After a month of this, I eventually contacted my attorney to deal with Guardian and it took my fabulous attorney over a month to receive the release paperwork to remove my device with the courts. If my attorney had not take mercy on me and done this work pro-bono, I would have been stuck with an additional $1000 bill to receive a simple document. and I still had to pay Guardian for the extra 2 months of the device. How can this be ethical? AVOID THIS COMPANY AT ALL COST. All of these stresses will COST you money.
Shame on you Guardian, you have been in business for 35 years and never been BBB accredited. Want to guess why?????
Response from Guardian InterlockJun 1, 2020
All input, negative and positive, is reviewed by our Guardian contact center supervisors and used in on going agent training. We appreciate your taking the time to provide this feedback and we will use it to make our customer experience better going forward.
AF
Amir F.
Don’t go with this company!!
The absolute worst company employees and managers I have ever dealt with in my entire life. They’re are dishonest with their product and their contractors Will provide your old dirty devices!
Response from Guardian InterlockMar 30, 2020
Thank you for taking the time to bring this to our attention. You are important to us and we sincerely want to ensure you get the assistance you need when you call our Customer Service center. Someone from the Guardian Executive Resolutions Team will be reaching out to you shortly to see how we can best assist you during this time.
MB
Mario B.
The product was easy to operate but…
The product was easy to operate but during installation damage was done to the electronics in my vehicle. The company has offered to pay for damage but not for installation and removal.
Response from Guardian InterlockMar 11, 2020
This has been escalated to Guardian management in your area to ensure your situation is handled as best as possible.
MR
Ms. R.
Device was taken off too soon due to an…
Device was taken off too soon due to an error on your end.
Response from Guardian InterlockFeb 14, 2020
We appreciate your feedback and understand your concerns. However, at Guardian we do not advise when the device is to be removed; the client went to the shop and requested removal without verifying with his monitoring authority that he was eligible. It is the client's responsibility to know when their time is up, as we don't hold your state records.