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 Consumer Courier, with an average rating of 4.0 out of 5.
Also known as
guardianinterlock.com
Website
guardianinterlock.com
Category
Auto Parts & Wheels
Listed on Consumer Courier
2026
About these reviews
Reviews are shown as their authors wrote them. The company can reply, but cannot edit them.
The score is the plain average of the published reviews on this page.
Thank you so much for your kind words. We are glad to have been of assistance and wish you success with your Guardian program.
FO
Forrest
Posted
Helpful and explained everything well…
Helpful and explained everything well and was quick service
Response from Guardian Interlock· Jun 24, 2020
Providing top quality customer service is a core value for Guardian. We are happy that you had a five star experience with us.
DR
Daniel R.
Posted
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 Interlock· Jun 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.
Posted
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 Interlock· Jun 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.
GB
Gregory B.
Posted
Sales rep was very helpful
Sales rep was very helpful. Really like the fact of dealing with One Rep. This should be a customer service Standard.
Response from Guardian Interlock· Jun 3, 2020
Thank you for taking the time to share your experience. We will let Tawanda know. Our Guardian contact center team receives ongoing training so you get the best possible experience under the circumstances.
BG
britne G.
Posted
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 Interlock· May 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.
SN
Spencer N.
Posted
Very friendly staff
Very friendly staff
Response from Guardian Interlock· May 21, 2020
Starting an ignition interlock program is complex, and we are happy we could make it straightforward for you. Guardian customer service agents are here for you throughout your program.
TK
Tenisha K.
Posted
Company overall is decent
Company overall is decent. But I'm very disappointed in how they handle failed readings. I recently had two fails. Both of which were quickly followed by passes proving that I was not drinking. Regardless I got charged for both at 35 a piece.
Response from Guardian Interlock· Apr 30, 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. Your service center must be paid for performing this service to you, therefore we must pass along the fees to you, but we charge the minimal amount to keep things affordable for our clients.
I show you were only charged $35 once, on 4/27. We have sent you an email to inquire about the other $35 charge you mentioned.