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Selected vehicle: 2006 · GMC Yukon XL Denali

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Source reference 10112560

Manufacturer communication — 2006 GMC YUKON DENALI XL

Fitment confirmedReporter type: ManufacturerSERVICE BRAKES

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

PIT4907A ・ normal characteristic (no repair) ・ for GM vehicles in general

Applies to

  • Applies to 2002 - 2013 GM passenger cars and light duty trucks.

    the passage
    2002 - 2013 GM Passenger Cars and Light Duty Trucks

Fault

  • Gray coated brake rotors are found on new vehicles and on replacement parts from GM SPO.

    the passage
    The gray coated rotors can be found on both new vehicles and replacement parts from GM SPO.

Finding the cause

Possible causes

  • The rotors are coated with a zinc organic protective spray so they do not rust before they go into service.

    the passage
    The rotors are coated with a zinc organic protective spray to prevent the rotors from rusting before they go into service.

Correction

Repair

  • The coating may need to be removed from the rotor's hub mating surface if lateral run out (LRO) is excessive when assembled.

    the passage
    Note: The coating may need to be removed from the rotor's hub mating surface if there is excessive rotor Lateral Run Out (LRO) when assembled.

Caution

  • Do not remove the coating; it wears off with normal braking and does not hinder brake performance.

    the passage
    The coating should not be removed and will wear off with normal brake usage. The coating does not hinder brake performance.

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

    本予備情報通知は、General Motors Service Parts Operationsからの新車および交換部品のブレーキローターについて技術者に情報を提供するものです。技術者に対して、ブレーキローターからコーティングを除去すべきではなく、通常のブレーキ使用により摩耗することを周知する必要があります。ディーラーは、この状態が車両の通常の作動特性であることを顧客に伝える必要があります。 Machine translation (unreviewed)

    This Preliminary Information communication provides information to the technician about brake rotors on new vehicles and replacement parts from General Motors Service Parts Operations. Technician should be advised the costing should not be removed from the brake rotor it will wear off with normal brake usage. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
    Go to this passage in the original

Source

Source
NHTSA Manufacturer Communications
Source reference
10112560
Received by source
2017-08-15
Incident date
Unknown

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