
FAQ - Frequently Asked Questions
📦 Orders & Shipping
-
Processing Time: 1-2 Business Days.( No shipments on weekends )
- Delivery Time:
3-7 Business Days from United States Warehouse;
7-15 Business Days from China Warehouse.
Special circumstances may cause delays, please understand
- Track My Order: Once your order ships, you'll receive a tracking number via email. You can use it to track your package at any time.
- Do I have to pay customs or import taxes?
For orders shipped from our US warehouse, no customs fees apply.
For international shipments, customs duties may apply depending on your country's regulations. These are the buyer's responsibility.
↩️ Returns & Refunds
- What is your return policy?
We offer a 30-day return policy. Items must be unused and in original packaging. Please contact us at jhy90250@gmail.com to initiate a return.
- My item arrived damaged. What should I do?
Please contact us with 7 days of delivery with photos of the damaged item. We will arrange a replacement or full refund promptly.
📬 Contact & Support
- How can I contact customer support?
You can reach us at jhy90250@gmail.com. You can also click the icon in the bottom right corner to contact us online. We respond within 48 Hours.
👀 Drive Smarter, Keep Your Eyes on the Road
The K1 Car Head Up Display projects your real-time GPS speed on the windshield,
keeping your eyes focused on the road for safer, distraction-free driving.
Optional Green or White LED Light
Choose the LED color that matches your driving style. The K1 HUD is available with optional green or white LED lights, providing clear visibility and a personalized driving experience.
🚗 Real-Time GPS Speedometer Display
The K1 car HUD uses advanced GPS + BDS satellite technology to track your driving speed and display real-time digital speed information directly in your line of sight.
🌞 Automatic Brightness for Day & Night
Built-in light sensor automatically adjusts the HUD display brightness based on surrounding light conditions, ensuring clear visibility during both daytime and nighttime driving.
🚘 Universal HUD Display for Cars, Trucks, SUVs & Classic Vehicles
- No factory modification required — simply plug it into your vehicle's USB port (5V) and start driving.
- Perfect upgrade for classic cars, trucks, SUVs, RVs, older vehicles without factory HUD.
Why Choose K1 HUD Head Up Display?
- Keep Your Eyes on the Road
- Plug & Play Installation
- Affordable Aftermarket HUD Upgrade
- Compatible with Most Vehicles
Plug & Play HUD Installation – Ready in Minutes
No OBD connection. No dashboard modification. Just plug it in and drive.
- Plug the USB cable into your vehicle USB Port(5V); (Tips: Use our original OEM power cord for stable regulated voltage; third-party cables may cause startup failure.)
- Place K1 HUD on dashboard;
- Stick reflective film on windshield (Not required);
- Wait for GPS signal → Drive.
What’s in the Box?
- 1 x K1 HUD
- 1 x USB Power Cable
- 1 x Double-sided Tape
- 1 x Reflective Film
- 1 x User Manual
K1 Car Head Up Display FAQs
Does it do MPH and KM/H?
- No, the speed unit cannot be adjusted
Is this car head up display wireless?
- No. This is a USB-powered car HUD, not a wireless or factory-built system.
Why does the screen sometimes show "__" or no speed?
- This usually means the Car HUD is temporarily not receiving Gps signal. Please drive in an open area with a clear view of the sky.
- Please use our provided cable, not yours. Because the current of the power cord is different
Will it work in tunnels or underground garages?
- This is a GPS-based heads up display for cars, so signal may be temporarly lost in tunnels or underground garages. This is normal for all Gps devices
Why do I see a double image on the windshield?
- This is normal if you aren't using the reflective film.
- Solutions: Clean the area on the windshield and apply the reflective film that came with the HUD. This will focus the projection into a single, clear image.
Can I calibrate the speed reading?
- No. K1 HUD does not support speed calibration.
- The speed is calculated directly from GPS data for simplicity and ease of use.