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Selected vehicle: 2006 · GMC Yukon XL Denali

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Source reference 10161011

Manufacturer communication — 2006 GMC YUKON

ReferenceReporter type: ManufacturerELECTRICAL SYSTEMEXTERIOR LIGHTING:HEADLIGHTS

Relation to the target vehicle

  • The source's vehicle field says Yukon; whether it is an XL is not stated.
  • The trim (Denali) is not stated.
Model year
Match 2006 — Source vehicle field
Model
Unknown YUKON — Source vehicle field
Trim
Unknown

What the manufacturer’s document says

PIT3219F ・ normal characteristic (no repair) ・ names this vehicle

Applies to

  • The model table lists the GMC Yukon, model years 2003 - 2019.

    the passage
    GMC Yukon 2003 - 2019 All All All All

Fault

  • Some customers may state that the Daytime Running Lamps (DRLs) or the auto headlamps will not shut off when using the daytime running lamp disable switch, which is part of the headlamp switch.

    the passage
    Some customer may state that the Daytime Running Lamps (DRL’s) or the auto headlamps will not shut off when using the daytime running lamp disable switch (Which is part of the headlamp switch).

Finding the cause

Possible causes

  • Vehicles built for Canada (RPO Z49) have different software that does not allow the DRLs or auto headlamps to be shut off.

    the passage
    Vehicles that were built for Canada (RPO Z49) have different software that doesn’t allow the DRL’s or Auto headlamp to be shut off.

  • Canadian law prohibits disabling daytime running lamps (DRLs) or auto headlamps.

    the passage
    Canada law prohibits disabling daytime running lamps (DRL’s) or auto headlamps.

Correction

Caution

  • This is a normal operation of the vehicle and no repairs should be attempted.

    the passage
    This is a normal operation of the vehicle and no repairs should be attempted.

What is needed

Parts and materials
Not stated
Labor time
Not stated
Special tools
Not stated
Scan tool
Not stated

Only what the technical documents state. "Not stated" does not mean not needed.

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

  1. Communication summary

    本予備情報は、カナダ向けに製造された車両（RPO Z49）において、ヘッドランプスイッチの一部であるデイタイムランニングランプ（DRL）無効スイッチを使用してもDRLまたは自動ヘッドランプが消灯しないことを整備士に通知するものである。これらの車両は、DRLまたは自動ヘッドランプの無効化を許可しない異なるソフトウェアで製造されている。カナダの法律はデイタイムランニングランプ（DRL）または自動ヘッドランプの無効化を禁止している。 Machine translation (unreviewed)

    This Preliminary Information communicates to technicians that the Daytime Running Lamps (DRL's) or the auto headlamps will not shut off when using the daytime running lamp disable switch (Which is part of the headlamp switch), if the vehicles was built for Canada (RPO Z49).   These vehicles were built with different software that doesn't allow the DRL's or Auto headlamp to be shut off. Canada law prohibits disabling daytime running lamps (DRL's) or auto headlamps.
    Go to this passage in the original

Source

Source
NHTSA Manufacturer Communications
Source reference
10161011
Received by source
2019-06-10
Incident date
Unknown

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