Mobileye SYS ERR — General System Error Fix

What Does This Error Mean?

SYS ERR on a Mobileye unit means the system has encountered a general fault it cannot identify with a specific ER code. The Mobileye is unable to operate correctly and all collision warning functions are disabled. A power cycle resolves some SYS ERR conditions; persistent SYS ERR usually indicates a hardware failure requiring unit replacement.

Affected Models

Mobileye 6 Series
Mobileye 8 Connect
Mobileye Shield+
Mobileye 630
Mobileye 650

Common Causes

Hardware failure in the camera unit — processor or memory fault
Firmware corruption — system software damaged or incomplete
Power supply fault — irregular voltage to the Mobileye unit
Severe physical damage to the camera unit
Overheating — unit exposed to extreme temperatures beyond operating range

How to Fix It

Turn the vehicle ignition off, wait 60 seconds, and restart.

A full power cycle is the first step for any SYS ERR. Waiting the full 60 seconds ensures the Mobileye unit fully powers down and reboots from scratch.
Check the power connection to the Mobileye unit.

A loose power cable or a blown fuse on the Mobileye power circuit can cause SYS ERR. Locate the Mobileye power cable and verify the connection is secure. Check the relevant fuse in the vehicle fuse box.
Check the unit for overheating conditions.

If the vehicle has been parked in direct sunlight in very hot weather, the interior temperature may have exceeded the Mobileye's operating range. Allow the vehicle to cool down and retry.
If SYS ERR persists after a power cycle and the power connection is good, contact a Mobileye installer.

SYS ERR on a unit with good power usually indicates internal hardware failure. Unit replacement is the typical resolution.

When to Call a Professional

SYS ERR that does not clear after a power cycle requires a Mobileye authorised service partner. The unit will likely need replacement.

Frequently Asked Questions

Is it safe to drive with SYS ERR showing on Mobileye?

The vehicle is mechanically safe to drive, but the Mobileye collision warning system is not functioning. You will not receive forward collision warnings, lane departure alerts, or headway distance warnings. Arrange repair promptly — especially for commercial fleets where regulations may require a functioning ADAS system.

Does SYS ERR always mean the unit needs replacing?

Not always — SYS ERR from a power supply issue or overheating can clear without hardware replacement. However, SYS ERR caused by internal hardware failure does require unit replacement. A Mobileye installer will diagnose which case applies.