Manufacturer communication — 2006 GMC YUKON DENALI XL

Fitment confirmedReporter type: ManufacturerEQUIPMENT:ELECTRICAL

Relation to the target vehicle

The source's vehicle field includes the trim.

Model year: Match 2006 — Source vehicle field
Model: Match YUKON DENALI XL — Source vehicle field
Trim: Match Denali — Source vehicle field

What the manufacturer’s document says

PIC3278F ・ information ・ for GM vehicles in general

Applies to

Applies to 2000-2015 GM passenger cars and light duty trucks with OnStar.
the passage
Models: 2000-2015 All GM Passenger Car and Light Duty Trucks With OnStar

Fault

The owner reports that the OnStar system attempts or completes phone calls that the operator did not initiate.
the passage
An owner may report that the OnStar® system is attempting and/or completing phone calls which the operator of the vehicle did not initiate.

Compiled by reading the full text of the document; each point stands on the passage shown. Check the document itself, linked below, before working on a vehicle.

Stated content

Communication summary
本予備情報通知は、不正または幻の電話呼び出しの可能性がある車両の診断および修理に必要な手順を整備士に提供します。整備士は、ユーザーが経験している不正な呼び出しのタイプを判定する必要があります。車両は他の電話と同じように着信呼び出しを受け取る可能性があります。通常、ユーザーは車両内で電話が鳴るのを聞きます。このシナリオには着信Bluetooth呼び出しも含まれます。不正な呼び出しの一つのタイプは、キーパッドが故障している場合に発生する可能性があります。OnStarシステムは回路の電圧ショートのためにブルーボタン呼び出しを試みます。OnStarモジュールは内部故障を持つ可能性があり、「Phone Unavailable」音声メッセージを発生させることもあります。また、診断コードU1500またはB1000を持つ可能性があります。診断コードの診断を参照し、適用可能なBulletinまたは予備情報シートに従ってください。運転中に「Ready」または「OnStar ready」音声メッセージが聞こえます。いくつかのケースでは、ユーザーがステアリングホイールコントロールの「プッシュトゥトーク」ボタンを不意に押していることが判明しています。稀なケースでは、ステアリングコラムまたはステアリングホイールコントロールシステムのその他の問題がこの不具合を引き起こす可能性があります。 Machine translation (unreviewed)
This Preliminary Information communication provides information to the technician the steps needed to diagnose and repair the vehicles that may have unwanted or phantom phone calls. Technician will need to determine what type of call the customer is having that is unwanted. The vehicle may receive an incoming call just like any other phone. Typically the customer will hear the phone ringing in the vehicle. This scenario also includes incoming Bluetooth calls. One type of unwanted call can be made if the key pad is faulty the OnStar system will try to make a blue button call for shorted voltage in the circuits. The OnStar module could have an internal fault and produce a "Phone Unavailable" audio message also it may have a Diagnostic Trouble Code U1500 or B1000. Refer to diagnostics for the Diagnostic Trouble Code making sure to follow any applicable Bulletins or Preliminary Information sheets. A "Ready" or "OnStar ready" audio message heard while driving. In some cases it has been found that the customer is inadvertently pressing the ?push to talk? button on the steering wheel controls. On rare occasions, other issues in the steering column or Steering Wheel Control system may induce this concern.
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Source

Source: NHTSA Manufacturer Communications
Source reference: 10114343
Received by source: 2017-08-15
Incident date: Unknown

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