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Source reference 2004-08-51

Manufacturer communication — 2003 GMC FULL SIZE TRUCKS AND UTILITIES (YUKON)

Reporter type: Manufacturer

Vehicles as recorded

What the manufacturer’s document says

normal characteristic (no repair) ・ names no model (for full-size utilities)

Applies to

  • Applies to 2003-04 Chevrolet and GMC full size trucks and utilities: after the radio has been reprogrammed or replaced, owners may comment that the volume is not as loud at the same volume setting as before.

    the passage
    Owners of some 2003-04 Chevrolet and GMC full size trucks and utilities may comment that after the radio has been reprogrammed or replaced, the volume is not as loud at the same volume setting as before.

  • This applies only to vehicles with RPO UQ7 without RPO Y91.

    the passage
    TIP: This applies only to vehicles with RPO UQ7 without RPO Y91.

Finding the cause

Possible causes

  • A new Audio Calibration, part number 10364319, was released to enhance low end volume control resolution.

    the passage
    A new Audio Calibration part number 10364319 was released to enhance low end volume control resolution.

  • The calibration does not change the upper end of the volume control; the volume gets as loud as with the old calibration.

    the passage
    This calibration does not change the upper end of the radio volume control, and the volume will get as loud as the old calibration.

  • At the low end, each click of the volume control now raises the actual volume at a slower rate than with the previous calibration.

    the passage
    But the low end volume control has been changed so that each click of the volume control raises the actual volume at a slower rate than the previous radio calibration.

Correction

Caution

  • This is normal and no repairs should be made.

    the passage
    This is normal and no repairs should be made.

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

    ラジオの音量 一部の 2003-04 Chevrolet および GMC のフルサイズトラックとユーティリティのオーナーが、ラジオの再プログラムまたは交換の後、同じ音量設定でも以前ほど音が大きくないと指摘することがある。 TIP: これは RPO UQ7 付きで RPO Y91 の無い車両にだけ該当する。 低音量域の音量調整の分解能を高めるため、新しいオーディオキャリブレーション（部品番号 10364319）が出された。 このキャリブレーションはラジオの音量調整の上限側を変えておらず、音量は従来のキャリブレーションと同じ大きさまで上がる。 しかし低音量域の音量調整は変更されており、音量調整の一クリックごとに実際の音量が上がる度合いは、従来のラジオのキャリブレーションより緩やかである。 これは正常であり、修理を行ってはならない。 Machine translation (unreviewed)

    Radio Volume Owners of some 2003-04 Chevrolet and GMC full size trucks and utilities may comment that after the radio has been reprogrammed or replaced, the volume is not as loud at the same volume setting as before. TIP: This applies only to vehicles with RPO UQ7 without RPO Y91. A new Audio Calibration part number 10364319 was released to enhance low end volume control resolution. This calibration does not change the upper end of the radio volume control, and the volume will get as loud as the old calibration. But the low end volume control has been changed so that each click of the volume control raises the actual volume at a slower rate than the previous radio calibration. This is normal and no repairs should be made.
    Go to this passage in the original

Source

Source
GM TechLink
Source reference
2004-08-51
Received by source
2004-08-01
Incident date
Unknown

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