Service bulletin ITB18-041

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

NHTSA's summary

2019 QX50; AUDIO SYSTEM WILL NOT TURN ON AND/OR SCREENS FREEZE UP AFTER HANGING UP A PHONE CALL IF YOU CONFIRM There is no audio, and the audio controls do not turn the radio/audio ON. and/or Both screens freeze up after hanging up a phone call. - The phone call was initiated with Voice Recognition while the phone menu was displayed on the upper screen. NOTE: These conditions can be temporarily resolved by pressing and holding down the Volume/Audio ON/OFF button for 5-10 seconds. ACTION 1. Refer to page 4, step 8 in the SERVICE PROCEDURE to confirm an update applies to the Display Control Unit (DCU) of the vehicle being worked on. - Confirmation is determined by comparing the DCU part number with those listed in Table A on page 4. 2. If this bulletin applies, update the DCU software. - See REQUIRED SPECIAL TOOL on page 2. NOTE: The updated software resolves the items above along with improving software stability.

The document

• NHTSA's copy of the document (PDF)
• If that address does not open, try this one

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Equipment and accessories, Software

Listing a model year does not mean every vehicle of it is concerned: the document says which.

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