If you’re wondering how to power your Rexing dash cam continuously or you’ve run into some common issues, you’re in the right place! We’re going to walk through everything you need to know about Rexing OBD2 connections, how they supercharge your dash cam’s capabilities, what makes Rexing dash cams a popular choice, and how to troubleshoot those frustrating memory errors. Think of this as your friendly guide to getting the most out of your Rexing gear, making sure you capture every important moment on the road, even when your car is parked. Getting your dash cam set up right, especially with a solid power source like an OBD2 hardwire kit, is a must for peace of mind while driving and even when you’re away from your vehicle.
When we talk about “Rexing OBD2,” most of the time, we’re really talking about Rexing’s OBD2 hardwire kits designed for their dash cams. Now, it’s important to clarify something right off the bat: the OBD2 port in your car is primarily for onboard diagnostics, letting you or a mechanic read trouble codes and monitor engine data. But it also provides a super convenient way to tap into your car’s electrical system for power. That’s where Rexing steps in with their hardwire kits.
Rexing dash cams typically come with a standard cigarette lighter adapter for power, which is fine for basic recording while you’re driving. But what if you want your dash cam to keep an eye on things while your car is parked? That’s where the Rexing OBD2 hardwire kit becomes essential. It’s basically a small device that plugs into your car’s OBD2 port and provides a constant, reliable power source to your dash cam, even when your car’s ignition is off.
This isn’t about your dash cam reading your car’s diagnostic codes – it’s purely about providing power efficiently. However, since the term “reading OBD2 codes” pops up, we’ll touch on what that generally means later, just to clear up any confusion. But for Rexing, its OBD2 connection is all about powering up your dash cam with smart, continuous energy.
Why Use a Rexing OBD2 Hardwire Kit?
Using a Rexing OBD2 hardwire kit for your dash cam offers some significant advantages over just plugging it into the cigarette lighter. It’s all about enhancing functionality and giving you greater peace of mind.
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Continuous Power and Parking Mode
One of the biggest reasons people opt for a hardwire kit is to enable 24/7 parking mode monitoring. Imagine leaving your car in a parking lot, and someone bumps into it, or worse, tries to vandalize it. Without continuous power, your dash cam might only record while the engine is on. A hardwire kit keeps your Rexing dash cam powered, even when your vehicle is off, allowing it to record when it detects motion or impact. This is a must for vehicle security, especially in high-risk areas or for those who park their cars for extended periods.
Rexing’s hardwire kits often feature ACC Accessory detection, meaning they can sense when your car is on or off. When you turn off your engine, the kit automatically switches your dash cam into parking mode, and then back to normal recording once you start driving again. It’s pretty smart and completely automatic.
Low Voltage Protection
You might be thinking, “Won’t that drain my car battery?” That’s a valid concern! But Rexing’s OBD2 hardwire kits are designed with low voltage protection. This crucial feature monitors your car’s battery voltage and will automatically cut off power to the dash cam if the voltage drops to a critical level for example, around 11.8V for a 12V system. This ensures that your car battery won’t be completely drained, so you’ll still be able to start your vehicle when you need to. It’s a thoughtful design that protects your car while keeping your dash cam vigilant.
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Cleaner Installation
Let’s be real, no one likes a mess of wires cluttering their dashboard. A hardwire kit allows for a much cleaner and more discreet installation. Instead of having a cable dangling from your cigarette lighter, the hardwire kit’s cables are typically routed neatly along your car’s trim and tucked away, connecting directly to the OBD2 port, which is usually hidden under the dashboard near the pedals. This means your dash cam looks like a seamless part of your car, not an aftermarket add-on.
Uninterrupted Power Supply
The cigarette lighter port might occasionally lose power due to vehicle settings or if you accidentally bump the plug. With an OBD2 hardwire kit, you get a stable and uninterrupted power supply, ensuring your dash cam is always ready to record without unexpected power cuts.
In essence, a Rexing OBD2 hardwire kit isn’t just about power. it’s about unlocking your dash cam’s full potential, especially for continuous surveillance and a tidier setup.
Installing Your Rexing OBD2 Hardwire Kit
Installing a Rexing OBD2 hardwire kit is generally straightforward, especially since it plugs directly into your car’s OBD2 port, eliminating complex wiring to the fuse box for many users. However, some kits might still require a fuse tap for specific functions, or some vehicles might have the OBD2 port in a tricky spot. Let’s break down the general steps to get this set up. The Ultimate Guide to Rexing on Skates: What It Is & How to Master It
What You’ll Need
- Your Rexing dash cam.
- The Rexing OBD2 hardwire kit.
- A trim removal tool optional, but super helpful for tucking cables.
- Cable clips usually included, or you can get some small adhesive ones.
- Your car’s owner’s manual to locate the OBD2 port if you can’t find it.
Step-by-Step Installation Guide
- Locate Your Car’s OBD2 Port: This is usually found under the driver’s side dashboard, often near the steering wheel or pedals. If you can’t spot it immediately, a quick check of your car’s owner’s manual or a quick Google search for “OBD2 port location ” should help you out. It’s a 16-pin trapezoidal connector.
- Mount Your Dash Cam: Decide where you want your dash cam on your windshield. Most people put it behind the rearview mirror to keep it out of their line of sight. Make sure the camera has a clear view of the road and isn’t obstructing your vision. Clean the area, apply the adhesive mount, and secure the dash cam.
- Plug in the OBD2 Hardwire Kit: Take the larger end of your Rexing OBD2 hardwire kit and simply plug it into your car’s OBD2 port. It should click securely into place.
- Connect to Your Dash Cam: Route the other end of the hardwire kit cable usually a Type C or Mini USB, depending on your Rexing model to your dash cam.
- Route and Hide the Cables: This is where the trim removal tool comes in handy. Carefully tuck the cable along the edges of your windshield, down the A-pillar the frame next to your windshield, and under the dashboard towards the OBD2 port. Most cars have enough gaps in the trim for you to discreetly hide the wires, making for a super clean look. Use cable clips to keep everything secure and prevent sagging.
- Test the Connection: Once everything is plugged in and routed, turn your car’s ignition to the accessory position or start the engine. Your dash cam should power on automatically. Turn off your engine and observe if the dash cam switches to parking mode many Rexing models will indicate this on screen or with an LED. If it does, you’re all set!
Troubleshooting Common Hardwire Kit Issues
Sometimes, things don’t go perfectly, and that’s okay! Here are a couple of common issues you might encounter:
- Hardwire Kit Not Working No Power to Cam:
- Check the connection: Make sure the OBD2 plug is fully seated in the port and the cable is securely connected to the dash cam.
- Test other OBD2 devices: If you have another OBD2 scanner, try plugging it in to ensure the port itself is functioning.
- Vehicle compatibility: While Rexing kits are generally compatible, sometimes specific vehicle models or fuse box configurations can cause issues. Check the product description for any known limitations.
- Faulty kit: Though rare, a defective hardwire kit can happen. If all else fails, contact Rexing customer support.
- Parking Mode Not Activating/Working Right:
- Check dash cam settings: Ensure parking mode is enabled in your Rexing dash cam’s menu. Some models have different parking mode options e.g., motion detection, G-sensor detection, time-lapse, so make sure you’ve selected the one you want.
- ACC detection issue: If your parking mode isn’t switching automatically, it might indicate a problem with the kit’s ACC detection. Some older hardwire kits required manually tapping into an “always on” and “ignition switched” fuse, but modern OBD2 kits aim to simplify this. If your kit requires fuse taps, double-check those connections.
- Low voltage cutoff: The parking mode might be cutting off too quickly if your car battery is weak or the low voltage protection is set too high.
Are Rexing Dash Cams Any Good?
“Is Rexing a good dash cam?” is a question I hear a lot, and for good reason. There are tons of dash cam brands out there, so figuring out which one to trust can be tricky. From what I’ve seen and from user feedback, Rexing generally holds its own as a solid contender in the dash cam market.
Many users praise Rexing for its high-quality video recording. Models like the V1PGW 4K can capture stunning 4K footage from the front, with rear cameras often recording in 1080p, ensuring clear and detailed video. This is super important if you ever need to zoom in on a license plate or capture crucial details after an incident. They also tend to have wide-angle lenses, typically around 170 degrees, which helps reduce blind spots and capture more of the road. Rexine: Everything You Need to Know About Finding and Using This Versatile Material
Features like loop recording where new footage overwrites the oldest when the card is full, G-sensors which automatically lock footage during an impact, and Wi-Fi connectivity for easily viewing and downloading videos to your phone via the Rexing Connect app are standard across many of their models and are often highlighted as user-friendly benefits. Their infrared night vision on cabin cameras, especially for models like the V3 and V2 Pro AI, is also a big plus for rideshare drivers or anyone wanting interior surveillance.
However, no brand is perfect, and Rexing isn’t without its critiques. Some users on forums like Reddit have reported issues with long-term reliability, SD card compatibility, or occasional glitches with the companion app and Wi-Fi. For instance, while the V2 Pro AI offers three cameras, some reviews mention that its video quality might be “lackluster” for capturing license plates or road signs, especially in bright or low light.
Overall, Rexing dash cams offer a lot of value, especially for their price point. They’re often considered a worthwhile investment for features and durability. For everyday commuters, rideshare drivers, or anyone looking for added security, a Rexing dash cam, particularly when paired with an OBD2 hardwire kit for parking mode, can be a dependable choice. Just like with any tech, it’s a good idea to check out reviews for the specific model you’re interested in, as performance can vary slightly between different models.
Tackling Rexing Memory Errors
One of the most common and frankly, most annoying issues Rexing dash cam users, and really any dash cam user, can run into is a “memory error”. When your dash cam flashes that dreaded message or stops recording, it can feel like your digital eyewitness just went blind. But don’t worry, there are usually some straightforward fixes you can try.
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Why Do Memory Errors Happen?
Memory errors almost always point to a problem with your microSD card. Here’s a rundown of the usual culprits:
- Unsupported or Low-Quality SD Card: Dash cams are constantly writing and overwriting data, which is a demanding task. Cheap, generic, or incompatible SD cards often can’t keep up, leading to corruption or errors. Rexing recommends using UHS-I Class 10 or higher MicroSD cards.
- Improper Formatting: If your memory card isn’t formatted correctly, the dash cam might struggle to read or write to it. Formatting on a computer might not always be ideal, as it can write “just a tiny bit of code that the dash cam doesn’t know what to do with”.
- Full Memory Card: While loop recording should prevent this, sometimes a card can become full, especially with many locked emergency files, stopping new recordings.
- Faulty SD Card: MicroSD cards don’t last forever, especially under the constant stress of a dash cam. They can become damaged or corrupted over time.
- Power Issues: Believe it or not, an inconsistent power supply can sometimes trigger memory errors, as the camera might not properly finalize files.
- Outdated Firmware: Sometimes, software bugs in the dash cam’s firmware can lead to memory card reading problems.
How to Fix Rexing Memory Errors
When you see that “memory error,” here’s a troubleshooting checklist:
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Format the SD Card In-Camera!: This is often the first and most effective solution.
- Stop recording if it’s still trying to record.
- Go into your Rexing dash cam’s menu you might need to press the menu button twice.
- Navigate to the “Format” option.
- Select “Yes” to format the SD card. This clears all data and prepares the card specifically for your dash cam.
- Pro Tip: Do this periodically, even if you’re not getting errors, maybe once a month or every couple of months, to keep your card healthy.
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Use a High-Quality, Compatible SD Card: If formatting doesn’t work, your SD card might be the problem. Rexing M2-4 Review: Your Ultimate 360-Degree Guardian on the Road
- Invest in a name-brand, high-endurance microSD card e.g., SanDisk High Endurance, Samsung PRO Endurance. These are built to withstand the continuous read/write cycles of dash cams.
- Ensure it’s a UHS-I Class 10 or higher.
- Check the maximum supported capacity for your specific Rexing model e.g., up to 256GB for Rexing V3. Using a card larger than recommended can also cause issues.
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Check for Sufficient Power: A Reddit user found that a faulty original power supply was causing memory errors, and plugging the dash cam into a different power source resolved it.
- If you’re using the cigarette lighter adapter, ensure it’s securely plugged in and consider trying a different car charger or USB port if available.
- If you’re using a hardwire kit, double-check all connections.
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Update Firmware: Sometimes, a new firmware version can resolve underlying bugs causing memory errors.
- Visit the RexingUSA website’s support or downloads section to find the latest firmware for your specific dash cam model.
- Follow their instructions carefully for the update process. It usually involves downloading a file, placing it on the SD card, and inserting it into the camera. Remember to format the card again after the firmware update is complete to remove the firmware file.
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Replace the SD Card: If you’ve tried all of the above with no luck, your SD card might simply be at the end of its life. Replacing it with a new, high-quality card is the next step.
Don’t let a memory error frustrate you too much. By systematically going through these steps, you can usually get your Rexing dash cam back to reliable recording in no time.
Understanding OBD2 Codes Beyond Power
While Rexing’s OBD2 hardwire kits are all about giving your dash cam power, the OBD2 port itself has a much broader function: on-board diagnostics. You might have seen related keywords like “reading OBD2 codes” and “revkingz obd,” so let’s clear up what that means for your car and how it relates to these other devices, which are separate from Rexing’s primary use of the OBD2 port. Unlocking Your Rexing V2 Pro: The Ultimate User Manual & Setup Guide
What Are OBD2 Codes?
Every car manufactured after 1996 in the U.S. and similarly in other regions is equipped with an OBD2 On-Board Diagnostics II system. This system constantly monitors your vehicle’s major components, including the engine, transmission, and emissions system, for any malfunctions. When the system detects an issue, it generates a Diagnostic Trouble Code DTC, often turning on your “Check Engine Light” also known as the Malfunction Indicator Light or MIL on the dashboard.
These codes are standardized, meaning a P0420 code, for example, will generally refer to a catalytic converter efficiency issue regardless of your car’s make or model. DTCs typically start with a letter:
- P Powertrain: Covers engine, transmission, fuel system, ignition, and emissions.
- B Body: Relates to body systems like airbags, power steering, and central locking.
- C Chassis: Involves chassis systems like ABS and traction control.
- U Network Communication: For communication issues between vehicle modules.
How Do You Read OBD2 Codes?
To read these codes, you need an OBD2 scanner also called a code reader. These devices plug directly into your car’s OBD2 port and communicate with the vehicle’s computer. Rexing M3: Your Guide to Total Road Protection
- Locate the OBD2 Port: As mentioned before, it’s usually under the driver’s dashboard.
- Plug in the Scanner: Connect the scanner to the port.
- Turn on the Ignition: Turn your car’s key to the “on” position without starting the engine or just power on without starting for push-button cars.
- Read the Codes: The scanner will link with your car and display any stored or pending DTCs. More advanced scanners can also show “live data,” which is real-time information from various sensors in your car, helping a mechanic diagnose problems more effectively.
Interpreting these codes correctly often requires a bit of research or a mechanic’s expertise, as a code only points to a symptom, not always the direct cause.
“RevKingz OBD” – A Different Use of the OBD2 Port
You might have come across something called “RevKingz OBD.” This is a completely different product from Rexing’s dash cam accessories. RevKingz is a device that also plugs into your OBD2 port, but its main purpose is to transform your car’s sound to mimic different engine sounds like a V8, V10, or V12 through your car’s speakers. It uses the OBD2 protocol to get real-time engine data like RPM to make the simulated sounds realistic.
Interestingly, RevKingz devices often double as a basic OBD2 scanner, allowing you to read and clear error codes using a companion app. So, while it uses the same port, its primary function and what it does with the OBD2 data are very different from a Rexing hardwire kit.
Key takeaway: While both Rexing hardwire kits and RevKingz products connect to the OBD2 port, their functions are distinct. Rexing uses the port for power delivery to a dash cam, enabling features like parking mode. RevKingz uses it for engine sound simulation and as a secondary, basic diagnostic tool. Your Rexing dash cam itself does not read diagnostic trouble codes from your car’s OBD2 port. Mastering Your Rexing V1-4K: The Ultimate User Manual Guide
Maintenance and Best Practices for Your Rexing Dash Cam
Keeping your Rexing dash cam in top shape means it’ll be ready when you need it most. Here are some maintenance tips and best practices to ensure it runs smoothly:
- Regular SD Card Formatting: I can’t stress this enough! Formatting your microSD card every few weeks or once a month helps prevent data corruption and memory errors. This refreshes the card and keeps it optimized for continuous recording. Always do this in the dash cam itself.
- Use High-Quality, High-Endurance SD Cards: As mentioned before, this is crucial. A cheap, generic card is a false economy and will likely fail sooner. Invest in a reputable brand’s high-endurance card designed for dash cams.
- Keep Firmware Updated: Manufacturers release firmware updates to improve performance, fix bugs, and sometimes add new features. Check the RexingUSA website periodically for updates specific to your model and follow the instructions carefully.
- Clean the Lens: Just like your car’s windshield, your dash cam’s lens can get dirty with dust, fingerprints, or smudges. A dirty lens means blurry footage, which defeats the purpose of a dash cam. Use a soft, microfiber cloth to gently clean the lens regularly.
- Check Mounting Security: Over time, vibrations and temperature changes can loosen the dash cam’s mount. Periodically check that your dash cam is still securely attached to the windshield and its angle hasn’t shifted. Re-adjust if necessary to ensure it’s capturing the optimal view.
- Cable Management: Make sure the power cable is still neatly tucked away and not obstructing your view or getting in the way of other car functions. Loose cables can be a distraction and might even get damaged.
- Temperature Considerations: Dash cams operate in varying car temperatures, which can be extreme. Rexing dash cams are built with supercapacitors, which are more resistant to extreme hot and cold climates than traditional lithium-ion batteries. However, prolonged exposure to direct, intense sunlight when parked can still cause issues. If you live in a very hot climate, consider shading the dash cam when parked.
- Backup Important Footage: While your dash cam has loop recording and G-sensor protection, if there’s a specific incident you want to keep, make sure to download and back up that footage to your phone or computer. Don’t rely solely on the dash cam for long-term storage of critical events.
By following these simple steps, you can significantly extend the life of your Rexing dash cam and ensure it’s always ready to capture the unexpected, keeping you safer and more secure on the road.
Frequently Asked Questions
What does “Rexing OBD2” actually do for my dash cam?
“Rexing OBD2” primarily refers to Rexing’s hardwire kits that use your car’s OBD2 port for continuous power. This allows your dash cam to operate even when the ignition is off, enabling features like 24/7 parking mode monitoring with low voltage protection for your car’s battery. It’s about power, not diagnostic data reading for the dash cam itself.
Do I really need a hardwire kit for my Rexing dash cam?
It depends on what you want your dash cam to do. If you only need it to record while you’re driving, the standard cigarette lighter adapter is fine. However, if you want features like 24/7 parking surveillance, automatic parking mode activation, and a cleaner, wire-free installation, then a Rexing OBD2 hardwire kit is definitely worth it. It provides uninterrupted power and protects your car’s battery from draining.
Why am I getting a “memory error” on my Rexing dash cam?
Memory errors are usually due to issues with your microSD card. Common causes include using a low-quality or incompatible card, improper formatting, a full card, or a faulty/worn-out card. To fix it, try formatting the card in the dash cam, using a high-endurance Class 10+ card, checking power supply, or updating firmware. If all else fails, replace the card. Decoding the Rexing R4 Dash Cam: Your Ultimate Road Trip Companion
Is Rexing a reliable dash cam brand?
Many users find Rexing dash cams to be a good investment, praising their video quality, ease of use, and features like GPS and night vision. While some users have reported occasional issues with app connectivity or long-term reliability on certain models, overall, they offer solid performance and value for a wide range of drivers.
Can my Rexing dash cam read my car’s OBD2 diagnostic codes?
No, a Rexing dash cam, even when connected via an OBD2 hardwire kit, does not read your car’s diagnostic trouble codes DTCs. The OBD2 hardwire kit is solely for providing power to the dash cam. To read diagnostic codes, you would need a separate OBD2 scanner tool.
What kind of microSD card should I use with my Rexing dash cam?
You should always use a high-quality, high-endurance microSD card that is UHS-I Class 10 or higher. Cards specifically designed for dash cams like SanDisk High Endurance or Samsung PRO Endurance are recommended because they are built to withstand the constant writing and overwriting of data that dash cams perform. Also, ensure the capacity is within what your specific Rexing model supports e.g., up to 256GB for Rexing V3.
How do I update the firmware on my Rexing dash cam?
Firmware updates are typically found on the RexingUSA website’s support section. You’ll usually download a .bin file, place it onto a formatted microSD card, insert the card into the dash cam, and then power on the camera. The camera will automatically detect and install the update. Remember to format the card again in the dash cam after the update is complete to remove the firmware file.
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