# Service bulletin PIT4669D

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10113898
- Published by NHTSA: 2017\-08\-15
- Manufacturer's number: PIT4669D
- Manufacturer's date: 2016\-03\-02
- NHTSA component: EQUIPMENT:APPLIANCE:AIR CONDITIONER

## NHTSA's summary

This Preliminary Information communication informs the technician Polyalkylene Glycol is not compatible with the Hybrid Polyester oil. When vehicles with Hybrid Air Conditioning system have been injected with any commercially available Ultra Violet dye the system should be flushed of all system oil. Most ultra violet dyes contain Polyalkylene Glycol oil.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2016/MC-10113898-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2016/MC-10113898-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Equipment and accessories, Heating and air conditioning

## Vehicles listed

- 2009 to 2013 CADILLAC ESCALADE
- 2009 to 2013 CADILLAC ESCALADE ESV
- 2009 to 2013 CADILLAC ESCALADE EXT
- 2009 to 2011 CHEVROLET SILVERADO 1500
- 2009 to 2013 CHEVROLET SILVERADO 2500
- 2013 CHEVROLET SILVERADO 3500
- 2008 to 2013 CHEVROLET TAHOE
- 2009 to 2013 GMC SIERRA 2500
- 2009 to 2013 GMC SIERRA DENALI
- 2008 to 2013 GMC YUKON
- 2008 to 2013 GMC YUKON DENALI
- 2008 to 2013 GMC YUKON DENALI XL
- 2008 to 2011 GMC YUKON XL
- 2012 to 2013 GMC YUKON XL

## Recalls for the same vehicles and component

- [18V267000](/recalls/nhtsa/18V267000.md), 2018-04-26: EQUIPMENT
- [13V544000](/recalls/nhtsa/13V544000.md), 2015-10-30: EQUIPMENT:OTHER:LABELS
- [2010189](/recalls/tc/2010189.md), 2010-06-07: Accessories

## Other bulletins for the same vehicles and component

- [PI0488C](/bulletins/10254219.md), 2024-05-06, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; POWER TRAIN. Diagnostic Information for Transmission.
- [PI0718B](/bulletins/10253616.md), 2024-04-29, Service bulletin: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Audio System Speaker Rattle, Buzz Noise, Poor Sound
- [PI0695A](/bulletins/10253610.md), 2024-04-29, Service bulletin: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Diagnosis and Repair HVAC Blower Function.
- [PI0689B](/bulletins/10253606.md), 2024-04-29, Service bulletin: EQUIPMENT. Tool or Utility Box Sagging, Mis\-aligned.
- [PI0688F](/bulletins/10253605.md), 2024-04-29, Service bulletin: EQUIPMENT:ELECTRICAL:INFOTAINMENT:BLUETOOTH/WIFI. Poor Voice Quality During Bluetooth Call or OnStar® Personal Call.
- [PI0688E](/bulletins/10253604.md), 2024-04-29, Service bulletin: EQUIPMENT:ELECTRICAL:INFOTAINMENT:BLUETOOTH/WIFI. Poor Voice Quality During Bluetooth Call or OnStar® Personal Call.
- [PI0688D](/bulletins/10253603.md), 2024-04-29, Service bulletin: EQUIPMENT:ELECTRICAL:INFOTAINMENT:BLUETOOTH/WIFI. Poor Voice Quality During Bluetooth Call or OnStar® Personal Call.
- [PI0657A](/bulletins/10253585.md), 2024-04-29, Service bulletin: EQUIPMENT; STRUCTURE:BODY:HATCHBACK/LIFTGATE. Liftgate Paint Damage Evident at Lower Outer Edge of Applique.
- [PI0648A](/bulletins/10253582.md), 2024-04-29, Service bulletin: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Revised HVAC Blower Motor Installation Instructions.
- [20\-NA\-132](/bulletins/10253527.md), 2024-04-23, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

JSON: [/v1/bulletins/10113898](/v1/bulletins/10113898)

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