Network, generic

U0279 Lost Communication With Haptic Control Module

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

A haptic control module produces vibrations or pulses that the occupants feel, for example in the steering wheel, a seat or the floor. Where it sits varies: the 2026 Range Rover has separate haptic floor modules under the carpet, while on the 2019–2022 Hyundai Palisade the haptic steering wheel motor is driven by the integrated central control unit, so there is no separate network node. Care is needed with Maserati, whose HALF (haptic lane feedback) unit is really the forward-looking camera. U0279 means the module expected for this function has gone silent on the bus. No manufacturer publishes the code. Driving is unaffected; only tactile warnings or comfort effects stop, while visual and audible warnings remain.

Likely causes

Connector of the haptic module loose, e.g. after seat or carpet removal
Supply or ground of the haptic module interrupted
Vehicle configured for a haptic option the module does not match
Haptic module internally faulty

Symptoms

  • No vibration warning in steering wheel, seat or floor
  • Message about haptic or warning system in the cluster

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€0–700
Time0.3–2.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

haptic control modulevehicle bus wiring

Related codes

U0277U0278

References: static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov.