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RecallGazette

Vehicle problems, recalls & safety intelligence

Cadillac Escalade 2008–2013technical service bulletin

Bulletin PIT4669D · NHTSA communication 10113898 · issued Mar 2, 2016

Technical service bulletin
communication type
Equipment
component
2008–2013
model years
60
vehicle entries

Official 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.

What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.