Card errors — by far the most common
The symptoms are familiar: a card-error message, missing footage, files that will not play, or the camera repeatedly asking to format the card. Almost all of these trace back to the memory card rather than the camera itself.
The first fix is to format the card in the camera itself, not on a computer, which clears fragmentation and re-matches the file system to the device. If the errors persist, replace it with a high-endurance card of the right speed class; a consumer card worn out by continuous recording is the usual culprit, and our SD-card guide covers choosing a replacement.
Power and parking-mode issues
If the camera will not power on, switches off unexpectedly, or refuses to enter parking mode, start at the power source. Check the 12V socket actually has power by trying another device, inspect the power cable for damage, and on a hard-wired install check the fuse and the voltage at the camera end.
When parking mode specifically will not engage, the voltage cut-off may be set too aggressively, switching the camera off before it should, so try a less conservative threshold. And on older vehicles a loose or partially failed 12V socket is a frequent cause of a camera that works only intermittently.
Mounting and vibration problems
A camera that falls off the windscreen, vibrates, or produces shaky footage almost always has a mounting problem. Clean the glass thoroughly with isopropyl alcohol before re-mounting, since residue is the most common reason an adhesive pad fails to hold.
For a permanent fit, an adhesive mount rated for automotive use holds better than a suction cup, and the adhesive should be replaced every year or two if it starts to loosen. This matters more in South African conditions, where high cabin temperatures in summer cause cheaper suction and adhesive mounts to let go.
Firmware and app issues
If features stop working, the app will not connect, or playback misbehaves, the firmware is the place to look. Update it through the manufacturer's app or website, since quality cameras release updates once or twice a year that fix bugs and sometimes add features.
For app-connection trouble, make sure the camera's own Wi-Fi network has connected to your phone before opening the app, and note that pairing sometimes needs to be reset after a firmware update. These steps clear most connectivity complaints.
Heat and cold problems
Temperature is a quiet cause of dashcam faults in South Africa. Summer heat soak in a parked car stresses the electronics and the card and softens cheaper adhesives, while extreme cold degrades the small internal battery that some cameras carry for parking mode and timestamps.
Where heat or cold is causing repeated trouble, favour a camera rated for higher operating temperatures and, ideally, a capacitor-based model rather than one with a heat-sensitive internal battery. A properly hard-wired install also removes the reliance on an internal battery that struggles in the cold.
Footage that will not play on a computer
A common worry is footage that plays fine in the camera or app but not on a computer. This is almost always a codec issue, not corruption, meaning the computer simply lacks the software to read the camera's video format.
The fix is to use the manufacturer's own playback software or a player that handles a wide range of formats natively, which will open the files without re-encoding them. Importantly, keep the original file intact for any claim rather than converting it, since the original is what preserves authenticity.
A simple maintenance routine
Most dashcam problems are maintenance items rather than failures, so a light routine prevents the majority of them. Weekly, glance at the recording indicator to confirm the camera is on; monthly, review some recent footage on the app or a computer to confirm it is legible.
Every month or two, format the card in the camera, and replace a high-endurance card every couple of years before it wears out. This routine catches a developing fault while it is still a nuisance, rather than discovering it as a missing clip when a claim depends on it.