PIP5664

Bulletin No.: PIP5664
Published date: N/A
Preliminary Information
PIP5664 DTCs P11CC P20EE P226D P249E P249D
Models
Brand:
Model:
Model Years:
VIN:
from
to
Engine:
Transmissions:
Chevrolet
Silverado 2500/3500
2020 - 2020
All
All
6.6 L5P
All
GMC 2500/3500
Sierra
2020 - 2020
All
All
6.6 L5P
All
Involved Region or Country North America
Condition
A customer may have a concern of a check engine light on.
Cause
The technician may nd DTCs P11CC P20EE P226D P249E and / or P249D set.
Correction:
If DTCs P11CC, P20EE, P226D, P249E and/or P249D are found perform the following:
1. NOx Sensor 1 Reset.
2. NOx Catalyst Reductant Loading Reset.
3. Clear the DTC.
4. Set up for a regeneration enable. DO NOT perform a service regeneration.
5. Return the vehicle to the customer.
If DTC P226D is the only DTC found:
1. Clear the DTC.
2. Return the vehicle to the customer.
GM engineering is aware of these concerns and is working on a solution.
Warranty Information
Labor Operation
2886398
4087068
Description
Labor Time
DTC P226D Reset
.2 hrs.
DTC P11CC, P20EE, P226D, P249E OR P249D Procedure
.4 hrs.
*This is a unique Labor Operation for Bulletin use only.
Version History
Version
1
Modi ed
08/01/2019 - Created on.
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