GM CUSTOMER CARE & AFTERSALES

GMSO168

URGENT - DISTRIBUTE IMMEDIATELY

DATE	June 9, 2016
SUBJECT	SES Lamp P0521 Setting After An Oil Change And Or Low Oil Pressure Indicated On The Instrument Panel
MODELS	Cadillac, Chevrolet, GMC
TO	Cadillac, Chevrolet GMC Dealers
ATTN	Service Manager, Parts Manager, Warranty Administrators

PIP5276F: SES Lamp P0521 Setting After An Oil Change And Or Low Oil Pressure Indicated On The Instrument Panel - (Mar 1, 2016)

Subject:	SES Lamp P0521 Setting After An Oil Change And Or Low Oil Pressure Indicated On The Instrument Panel
Models:	2007-2013 Cadillac CTS-V, Escalade
	2007-2013 Chevrolet Avalanche, Camaro SS, Colorado, Corvette, Express, Silverado, Suburban, Tahoe
	2007-2013 GMC Canyon, Sierra, Savana, Yukon
	with a V8 Engine (RPOs L20, L77, L94, L96, L99, L9H, LC8, LC9, LH9, LMF, LMG, LY6, LZ1)

This PI was superseded to update Recommendation/Instructions. Please discard PIP5276E.

Condition/Concern

Some customers may complain of a SES light or low oil pressure indicated on the instrument panel cluster with DTC P0521 stored.  In some cases, this may have started shortly after an oil change.

Recommendation/Instructions

If you are working on a Gen4 V8 that is setting a DTC P0521 and/or has low oil pressure indicated on the instrument panel in cold or hot weather and the engine is currently equipped with a PF48E oil filter, determine if the engine has been properly repaired and cleaned following the procedure used in the latest version of bulletin 10-06-01-008.

If not, please update the engine with the components outlined in the bulletin.

If it has been properly repaired and cleaned, inspect the left rocker cover (square baffle) and verify that the baffles can hold water and do not leak.

If any leaks are found, clean and seal the edge of the baffle with RTV if possible or replace the valve cover.

Thoroughly clean and dry the valve cover before installation and/or resealing.

Change the engine oil and replace the oil filter using a PF48E type filter.

Parts Information

Refer to the electronic parts catalog and/or latest version of 10-06-01-008 for the appropriate part numbers.

Warranty Information

The correction for this concern may be one of several repairs described above.  For vehicles repaired under warranty, please use the appropriate warranty labor operation based on the actual cause and repair.

Thank you for your cooperation.

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GM CUSTOMER CARE & AFTERSALES