What a SunPass Mini is and where it goes
A SunPass Mini is a small electronic tag that sticks to your windshield and lets you drive through Florida toll plazas without stopping to pay. The device reads your account and charges tolls automatically. It's about the size of a thick credit card and mounts on the inside of your windshield, usually on the driver's side near the top.
You can get a SunPass Mini from SunPass directly, or from retail locations like Publix, Winn-Dixie, and some CVS stores. The device itself costs around $25 to $30, though prices vary by retailer. You'll need an active SunPass account to use it — the account is separate from the device and holds the money that pays your tolls.
Key Takeaways
- The SunPass Mini sticks to the inside of your windshield on the driver's side, usually in the upper corner where it has a clear view of toll readers.
- Your windshield must be clean and dry before you apply the adhesive backing, or the tag will not stick properly.
- Once mounted, the tag needs 24 hours to set fully before you drive through a toll plaza.
- If your windshield has a reflective or tinted band at the top, you may need to mount the tag lower, and SunPass customer service can confirm the right spot for your vehicle.
Preparing your windshield
Before you stick the SunPass Mini to your windshield, clean the area where it will go. Use glass cleaner and a paper towel or microfiber cloth to wipe away dust, dirt, and any residue. The spot should be completely dry — if moisture is trapped under the tag, it will peel off within days.
Choose a location on the inside of your windshield on the driver's side, typically in the upper corner. The tag needs a clear line of sight to the toll reader as you drive through the plaza. If your windshield has a dark reflective or tinted band across the top, position the tag below that band. Some vehicles have this band, and some do not — check your own windshield before you decide on a spot.
Removing the backing and applying the tag
Peel back the corner of the adhesive backing on the SunPass Mini to see the sticky side. Do not remove the entire backing yet — just lift one corner so you can position the tag on your windshield. This lets you line it up before the adhesive makes contact.
Press the tag gently against the windshield in your chosen spot. Once you are satisfied with the position, peel away the rest of the backing and press the entire tag firmly against the glass. Use steady pressure across the whole surface for about 30 seconds. Do not press so hard that you crack the tag, but press hard enough that the adhesive makes full contact with the glass.
Waiting for the adhesive to set
After you mount the tag, leave it alone for at least 24 hours before you drive through a toll plaza. The adhesive needs time to cure and bond to the glass. During this time, do not touch the tag, do not drive through tolls, and do not wash your windshield.
If you drive through a toll plaza before the adhesive has set, the tag may not read properly, and you could be charged a toll violation fee. SunPass will send you a notice if this happens, but it is easier to wait the full 24 hours than to deal with a violation later.
Linking the tag to your SunPass account
Your SunPass Mini will not work until you link it to an active SunPass account. If you already have a SunPass account, you can add the new tag through the SunPass website or by calling customer service at 1-888-865-8727. You will need the tag's serial number, which is printed on the back of the device and also on the packaging.
If you do not have a SunPass account yet, you will need to open one before the tag can charge tolls. You can set up an account online at the SunPass website, by phone, or at a retail location where you buy the tag. The account requires a valid payment method — a credit card, debit card, or bank account — so that tolls can be charged automatically.
Troubleshooting a tag that will not stick
If the SunPass Mini peels away from your windshield after a few days or weeks, the glass was not clean enough when you applied it. Remove the tag, clean the windshield again with glass cleaner, and let it dry completely. You can reuse the same tag if the adhesive is still sticky — if it has dried out, you may need to buy a new one.
Some windshields have a coating or treatment that makes adhesive stick poorly. If the tag keeps peeling off even after you clean thoroughly, contact SunPass customer service. They can sometimes send you a replacement tag with a stronger adhesive, or they may recommend a different mounting location on your windshield that works better for your vehicle.
What to do if the tag does not read at tolls
If you have waited 24 hours, mounted the tag in the right spot, and linked it to your account, but the tag still does not read at toll plazas, the problem is usually one of three things: the tag is not actually linked to your account, the account has no money in it, or the tag is mounted in a spot where the reader cannot see it.
Check your SunPass account online to confirm the tag is listed and active. Make sure your account balance is positive — if it is zero or negative, add money before you drive through tolls again. If the account looks correct, try moving the tag slightly higher or lower on your windshield. Some vehicles have a sweet spot where the reader picks up the signal better. If none of this works, call SunPass customer service and describe the problem — they can check whether the tag is transmitting and help you figure out what is wrong.
Frequently Asked Questions
Can I mount the SunPass Mini on the outside of my windshield instead of inside?
No. SunPass tags are designed to mount on the inside of the windshield. Mounting it on the outside exposes it to weather, dirt, and damage, and it will not last long. The inside mounting also keeps the tag out of sight and protects it from theft.
What happens if I move the tag after it has been mounted?
You can remove and remount a SunPass Mini, but the adhesive may not stick as well the second time. If you need to move it, clean both the windshield and the back of the tag with rubbing alcohol and let both dry completely before you apply it again. If the adhesive no longer works, you will need to buy a new tag.
Do I need a separate SunPass Mini for each vehicle I own?
Yes. Each tag is linked to one vehicle and one account. If you own two cars and want to use SunPass in both, you need two tags and one account. You can manage both tags through the same account online.
Can I use a SunPass Mini in other states besides Florida?
SunPass works at toll plazas throughout Florida and at some toll roads in other states, but coverage varies. Check the SunPass website to see which roads and states accept SunPass before you travel. Some out-of-state tolls may require a different tag or payment method.
What should I do if my windshield cracks or I need to replace it?
If your windshield is replaced, you will need to remove the SunPass Mini from the old glass and remount it on the new windshield. Clean the new glass thoroughly and wait 24 hours before you use tolls again. If the tag's adhesive no longer sticks, you can buy a new tag and link it to your existing account.