PIP5276B

Bulletin No.: PIP5276B
Date: Mar-2015
Subject:
SES Lamp P0521 Setting In Cold Ambient Temperatures
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This PI was superseded to update Recommendation/Instructions.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 PIP5276A.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern
A concern of a P0521 setting on a cold start with the outside temp below 0 degrees F.
Recommendation/Instructions
If you are working on a Gen4 V8 with a PF48E oil filter and a DTC P0521 sets during cold weather operation, replace the filter with a PF48.
If you determine a PF48 is not available, use a new UPF48R.
(This PI will be up dated with new information as it comes in.)
Warranty Information
For vehicles repaired under warranty use:
Labor Operation
Description
Labor Time
4065530
Oil Filter Replacement
Use Published Labor Operation Time
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the
remaining steps do not need to be performed.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may
occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools,
safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that
your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
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