PIP-5276-E

SB-10059078-4342
Service Bulletin
File in Section:
Bulletin No.:
Date:
PIP5276E
August, 2015
PRELIMINARY INFORMATION
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This PI was superseded to update Recommendation/Instructions.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 PIP5276D.
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 shorting 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 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.