Tips & How-To
How to Fix Common Dashcam Problems (Freezing, Rebooting & No Recording)
Dashcam troubleshooting doesn’t need to be complicated. If your dashcam is freezing, rebooting, overheating or not recording, the cause is usually related to SD cards, power supply or firmware. This guide shows the most reliable fixes that work for nearly all dashcams in 2025.
Before we go into each fix, it’s important to understand that most dashcam troubleshooting comes down to three root causes: SD card quality, unstable power supply or incorrect settings. Modern dashcams constantly write data, so even a minor issue can cause freezing, rebooting or corrupted recordings.
1. Fix freezing or rebooting – check your SD card
The #1 reason dashcams malfunction is a worn or incompatible SD card. Dashcams require high-endurance microSD cards because they record continuously.
- Use a High Endurance or U3/V30-rated card.
- Avoid large 256–512 GB cards unless the manufacturer recommends them.
- Replace cards every 12–18 months if used daily.
- Format the SD card inside the dashcam (not on your computer).
If your dashcam freezes every 5–20 minutes, an SD card issue is the most likely cause.
2. Fix recording stopping randomly – power issues
A dashcam that loses power will stop recording or reboot during driving. Common causes:
- Loose 12 V socket connection.
- Broken USB cable.
- Weak car charger that cannot supply stable power.
Try a different USB cable and a quality car charger (preferably USB-C PD).
3. Fix overheating or shutdowns
High interior temperatures can cause overheating. Dashcams often reduce recording quality or shut down entirely.
- Avoid placing the camera directly against the windshield tint band.
- Turn off Wi-Fi when not needed — it generates heat.
- Check for firmware updates that improve thermal limits.
4. Fix night recording problems
If night footage looks blurry or dark:
- Clean the windshield inside and out.
- Disable HDR if it introduces motion blur.
- Use a dashcam with a Sony STARVIS sensor for best results.
5. Fix parking mode not working
Parking mode requires a stable power source and correct voltage settings.
- Make sure the hardwire kit is connected to ACC + constant power.
- Check the voltage cutoff setting (12.0–12.2 V recommended).
- Update firmware — many brands fix parking mode bugs via updates.
6. Final troubleshooting checklist
- ✓ Replace SD card with a high-endurance model.
- ✓ Format the card monthly inside the dashcam.
- ✓ Try a different power cable and car charger.
- ✓ Check for firmware updates.
- ✓ Reduce heat exposure and disable unused features.
These steps cover more than 90% of all dashcam troubleshooting cases. Whether your dashcam freezes, reboots or fails to save footage, following the structured fixes above will restore stable recording in most situations. If problems continue even after using a new high-endurance card, the dashcam itself may be failing.
FAQ – Dashcam Troubleshooting
Why does my dashcam keep freezing?
Almost always due to a failing or incompatible SD card. Replace it with a high-endurance model.
Why does my dashcam reboot while driving?
Unstable power supply. Check cables, charger and the 12 V socket connection.
How do I fix recording not saving?
Format the SD card in the dashcam and update firmware. Replace the card if issues persist.
Is my SD card too big?
Some dashcams struggle with 256 GB and larger cards. 64–128 GB high endurance is safest.
Need better performance?
See recommended chargers →Updated: December 2025
We independently test and recommend products. If you buy through our links, we may earn a small commission at no extra cost.