Code result
U0182
Lost Communication with Headlamp Leveling Control Module
Moderate severity
What it means
The vehicle network has lost the headlamp leveling controller. Automatic leveling is disabled and the lamps stay in a default position; on many vehicles the headlight warning comes on.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Leveling module unpowered
highOne of the most commonly reported causes for this code — check this first.
Gateway module routing CAN messages incorrectly
lowLess common, but worth ruling out after the more likely causes.
CAN terminating resistor (120 Ω) drifted out of spec
lowLess common, but worth ruling out after the more likely causes.
Related help
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