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GMC TSB #PI1214B
2012 GMC Savana
Affected Component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
- This preliminary informational bulletin provides service personnel with a guide to determine which SI documents and scan tool parameters to reference when encountering an: Exhaust Fluid Quality Poor message displayed, and a Reductant Fluid Quality Test status that will Pass, Time Out, Fail or Interrupt and other DEF messages that maybe observed.
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