Where to Place the ETC on a Car?

[GarrettFitz]

The installation position of the ETC for small cars is generally in the upper middle part of the front windshield, while for large vehicles such as trucks and buses, it is installed in the upper part. The suitable installation position should be no lower than 1.2 meters and no higher than 2.5 meters, with an installation angle between 30 and 90 degrees. For vehicles with anti-explosion film or those that have it installed later, which may affect the signal transmission of the microwave communication link, the ETC should be installed in the microwave sunroof strip. ETC is the abbreviation for Electronic-Toll-Collection, meaning electronic toll collection system. To apply, the owner must provide original and photocopies of their valid ID card and vehicle license. If a non-owner is handling the application, they must also bring the agent's valid ID card. The photocopy of the vehicle license must include the page with the most recent annual inspection stamp. A bank card for deducting highway toll fees is also required, and the vehicle must be under the name of an individual aged 18 to 60. ETC application conditions are as follows: Provide the original and photocopies of the owner's valid ID card and vehicle license. The photocopy of the driver's license must include the page with the most recent annual inspection stamp. Credit card application form, which will be used to bind the ETC card. After obtaining the credit card, swipe it twice and use the POS receipt to collect the ETC on-board device for free at designated outlets. No fees are charged during this process. Applicants must be aged 18 to 60. The vehicle must be under the name of an individual. For company vehicles applying for ETC, the following documents are required: company introduction letter, business license, business license copy, corporate seal, legal person's ID card, vehicle driver's license, and vehicle registration certificate. These documents can be submitted at various bank outlets or one-card companies for processing. Business license or organization code certificate, original unit authorization letter for ETC business processing with official seal, original and photocopy of the handler's ID card, and original vehicle registration certificate. Below are precautions for installing ETC: Do not block the view; it is best to install it behind the rearview mirror: Many car models have a large rearward tilt angle on the windshield, which can reduce the driver's field of vision. If this is not considered during ETC installation, it can increase the driver's blind spots. Installing it behind the rearview mirror on the right side can avoid blocking the view. Do not affect charging: The ETC electronic tag consumes power but generally does not require charging or battery replacement because it has a solar panel on the back that can charge itself. Therefore, during installation, avoid the black areas on the windshield and positions that may block the solar panel. Once installed, do not remove it arbitrarily: The button in the middle of the adhesive is an anti-removal guide rod connected to a switch. After the electronic tag is installed, the windshield will press the anti-removal guide rod in. If removed arbitrarily, the guide rod will pop out and trigger the switch, locking the electronic tag and rendering it unusable. You will then need to visit an ETC service point to unlock it. This is designed to prevent multiple vehicles from sharing one device. When using ETC, note the following: The ETC transaction sensing range is 8 meters. To prevent the ETC device of the vehicle in front from malfunctioning, maintain a distance of more than 10 meters from the vehicle in front to avoid automatic toll payment for the vehicle ahead. The ETC lane recognition speed is 20 kilometers per hour. Driving too fast may prevent the vehicle's device information from being read, resulting in failed toll deduction. When using a debit card bound to ETC, insufficient balance will also cause toll deduction to fail.

[Emilia]

I know this well! Choosing the right spot for ETC installation is crucial—otherwise, you'll either get poor signal or bump your head daily. The best place is the dotted black area on the upper middle-right of the windshield, directly behind the rearview mirror. This is a dedicated installation zone left by manufacturers—it won’t block your view or interfere with signals. Avoid the left side; glare from reflections can be distracting while driving. As for height, don’t exceed one-third of the glass, or summer heat may cause it to peel off. Remember to double-check alignment before peeling off the adhesive—once it’s stuck crooked, it’s ruined. I learned this the hard way when I messed up my first install and had to spend 180 yuan on a replacement—a painful lesson!

[OBrooke]

Listen to me, the best spot to install your ETC is three fingers' width to the right of the rearview mirror. This area falls within the windshield's black ceramic dot zone, maintaining aesthetics while ensuring perfect signal reception. I've seen people install it near the left A-pillar for convenience, only to experience failed detection 8 out of 10 times at toll booths. Also, don't place it too low - if it's below the wiper, it might get blocked by the sun visor. When helping my dad install his last year, I specifically tested this position: it allows easy card removal from the driver's seat, convenient access to the charging port, and maintains full rearview visibility. Important reminder: if you need to reposition it, always contact customer service - forcing it off yourself might damage the anti-tamper switch.

[LeonardoMarie]

As a seasoned driver, here's the trick: choosing the spot boils down to three points—unobstructed view, easy operation, and full signal strength. Field tests show the optimal position is about 8 cm to the right of the rearview mirror base, on a flat surface within the black dotted area. I've seen people stick it directly on the dashboard, but prolonged sun exposure can cause the device to bulge and lose adhesion. Avoid placing it over metallic film coatings too, as highway gantries might fail to detect it. One more detail: the solar panel on the back must face outward—my neighbor installed it upside down, draining the battery and getting honked at when stuck at the toll gate, super embarrassing.

[EmilianoFitz]

For ETC installation, always aim for the black border area in the upper middle part of the windshield! Specifically, it should be behind the rearview mirror on the passenger side, avoiding the heating wires. Last week while helping my bestie install, I discovered: if your car glass has a built-in metal coating, you'll need to cut the film or have staff install it externally (though most cars don't require this). After installation, remember to wiggle it slightly - if there's any looseness, reinforce it with 3M tape. Once mine fell off while driving, scaring me into pulling over immediately - you definitely don't want it flying up and hitting your face. Pro tip: avoid car washes for 48 hours post-installation as the adhesive needs time to set properly.

[VonFelix]

I'm absolutely qualified to speak on this. The optimal position is in the black ceramic area slightly to the right of the windshield center, at a height above the wiper sweep zone. The key is ensuring the device faces the sky directly - solar panel tilt angles exceeding 30 degrees will impair charging. I've seen novices install ETC at 45-degree angles, resulting in low battery warnings within three months. Also avoid mounting near the rearview mirror base's left side - it obstructs vision and interferes with manual mirror adjustment. Last time at the repair shop, I saw a car with the device stuck on the glass gradient tint area causing signal attenuation, forcing the driver to reverse and rescan at every ETC gate - truly wasteful of both time and money.