Network, generic

U0459 Invalid Data Received From Head Up Display

Check engine lightUsually off

EmissionsNot relevant

Drive cycleNot required

Limp modeNo

The head-up display shows speed, route arrows or warnings as a virtual image in the windscreen. It takes most content from other modules and reports its own state, such as brightness, image position, page or standby, back over the vehicle bus or a LIN link to the cluster. U0459 is set when a partner receives HUD data that fail its checks; U0158 means the HUD is not heard at all. No manufacturer documents U0459 publicly. GM shows how near the two faults lie: in bulletin 22-NA-113 for 2020-22 Cadillac CT4 and CT5 with option UV6, badly timed LIN messages while the HUD entered standby left it blank and stored U0158 in the cluster, cured by reprogramming the cluster and pulling the HUD fuse. The 2011 Saab 9-5 code table lists the HUD as a separate node. Symptom: blank or frozen projection; no MIL.

Likely causes

Software of the cluster or HUD handling messages badly, for example around standby

HUD shutting down or sending fault status because of heat

Connector or LIN/bus wiring fault at the HUD

Symptoms

Head-up display blank or frozen
Brightness, position or page settings have no effect

Repair estimate

DifficultyMediumWorkshop job

Parts and labour€40–1,200

Time0.3–2 h

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

Parts involved

head up display

Related codes

U0158 U0423 U0457

References: static.nhtsa.gov, saabwisonline.com, en.wikipedia.org.