Symptoms
- Screen stays black even with the car running
- No sound, no backup camera, no radio
- Other electronics like lights and wipers work fine
- May have started after other electrical work
Likely causes
- CommonBlown fuse for the infotainment systemA dedicated fuse often powers the head unit and can blow without affecting the rest of the car.
- PossibleWeak or dead 12V batterySome systems shut off their screens first to save power when voltage is low.
- PossibleLoose wiring connector behind the unitVibration over time can loosen the connector plugged into the back of the screen.
- Less commonFailed head unitThe unit itself can fail electrically after many years of use.
What to do
- Check the fuse box (interior and under-hood, per your manual) for a blown infotainment or radio fuse and replace it if needed.
- Have the 12V battery voltage tested, since a weak battery can disable non-essential systems first.
- Try a full power cycle: turn the car off, remove the key or step away with the fob, wait a minute, then start again.
- If comfortable, check that the wiring connector on the back of the unit is fully seated (this usually requires removing a trim panel).
- Note whether the backup camera or steering wheel audio controls also fail, which points to the whole unit rather than just the screen.
Tools and parts
- Fuse puller
- Multimeter (optional)
Infotainment/radio fuseSearch: “car fuse for infotainment system, your model”
When to call a pro
If the fuse and battery are fine and the screen is still dead, have a mechanic check the wiring and, if needed, the head unit itself.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.