Manufacturer communication — 2006 GMC YUKON

ReferenceReporter type: ManufacturerUNKNOWN OR OTHER

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

PIT5099H ・ information ・ for GM vehicles in general

Applies to

The model table lists all brands and models, model years 2000 - 2024.
the passage
Model Years: VIN: Engine: Transmissions: from to All All 2000 - 2024 All All All All

Fault

The customer may comment that the A/C blows warm or performs poorly.
the passage
Customer may comment that their A/C blows warm or they have poor A/C performance.

Finding the cause

Steps to confirm (in the document’s order)

Have the A/C high and low pressures from actual A/C gauges, the high side sensor reading from GDS, and the A/C compressor duty cycle.
the passage
* A/C High and Low pressures from actual A/C gauges. * High side sensor reading from GDS * A/C compressor duty cycle
Record the outside temperature, humidity and vent temperature.
the passage
* Outside temperature * Humidity * Vent temperature
With an automatic HVAC system, read with the scan tool the evaporator temperature sensor (if equipped), the inside and outside temperature sensors and the duct temperature sensors.
the passage
* Evaporator temperature sensor reading (if equipped) * Inside temperature sensor reading * Outside temperature sensor reading * Duct temperature sensor readings

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、ヒーター・ベント・エアコンディショニングが温風を吹き出す車両について、技術者に情報を提供するものです。General Motors技術支援センターに電話する前に、技術者は高圧、低圧、外気温度、湿度、およびベント温度を用意する必要があります。 Machine translation (unreviewed)
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
Go to this passage in the original

Source

Source: NHTSA Manufacturer Communications
Source reference: 11007743
Received by source: 2024-09-12
Incident date: Unknown

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