NHTSA ID Number: 11028859
Manufacturer Communication Number: PIP5865L
TSB/Document Date: 2026-02-18
Summary
This Preliminary information communicates the possibility of DTC P30BF failing on low mile vehicles due to the possibility of the cylinder 1/2 sliding barrel binding on intake camshaft.
Bulletin No.: PIP5865L
Service Bulletin
Date: February, 2026
PRELIMINARY INFORMATION
Subject:
Brand:
Diagnostic Tip: Malfunction Indicator Lamp (MIL) DTC P30BF That May Set As
Current Or Failed In History On Vehicles With 5000 Miles Or Less
Model:
Model Year:
from
VIN:
to
from
to
Engine:
CT4-V
2020 - 2026
All
All
2.7 L3B
All
Colorado
2023 - 2026
All
All
2.7 L3B and
L2R
All
Silverado
1500
2019 - 2026
All
All
2.7 L3B
All
Canyon
2023 - 2026
All
All
2.7 L3B and
L2R
All
Sierra 1500
2019 - 2026
All
All
2.7 L3B
All
Involved Region or Country
North America
Condition
DTC P30C3, P30C7, P30CB or P30BF set as current or in history on vehicles with
5000 miles or less
Cause
Potential binding or sticking of the Intake/Exhaust camshaft sliding lobe pack
Correction
You may encounter one of the above listed vehicles that arrive in service with DTC P30C3, P30C7, P30CB or
P30BF set as current or in history. If so, complete the following steps.
1. Clear DTC and allow full sleep cycle of vehicle. Open and close the driver's door. Wait for OnStar light to turn off
and listen for relays in passenger footwell to click to indicate vehicle is asleep.
2. Start Vehicle and idle for 30 seconds and confirm no MIL
3. Drive vehicle, if MIL sets immediately upon moving the vehicle proceed to step 3a. If MIL does not set immediately
proceed to step 4
a. Clear DTC and allow full sleep cycle of vehicle. Upon restarting the vehicle, perform a park rev to 4000 rpm for
15 seconds.
4. Drive at 23-25 mph for 10 minutes If no MIL is present, the issue is resolved.
a. If MIL resets at any time, return to step 1. Repeat process up to 4x.” If codes return once completed proceed with
the following.
Replace the profile actuator solenoids as follows:
P30BF, intake cylinders 1&2
P30C3, intake cylinders 3&4
P30C7, exhaust cylinder 2
Copyright 2026 General Motors
. All Rights Reserved.
Page 2
February, 2026
Bulletin No.: PIP5865L
P30CB, exhaust cylinder 3
If any of the above codes return then replace the Intake Camshaft and Roller followers (DTC P30BF, P30C3) or
Exhaust Camshaft and Roller Followers (DTC P30C7, P30CB)
Clear remaining DTC's using GDS and evaluate the repairs.
If any of these codes return after the above repairs complete the published SI diagnostics for the related DTC's that
have returned.
This PI may become a bulletin once additional information has been collected.
Warranty Information
For vehicles repaired under the Powertrain coverage, use the following labor operation. Reference the Applicable
Warranties section of Investigate Vehicle History (IVH) for coverage information.
Labor
Operation
Description
Labor Time
4082545
Diagnosis Profile Actuator
Solenoids
0.4Hr
Add Time
Repeat Diagnosis Profile
Actuator Solenoids
Up to 1.0 Hr.
Add Time
Silverado/
Sierra/CT4
Intake/Exhaust Camshaft
and Roller Follower
replacement
4.7 Hr.
Add Time
Colorado/
Canyon
Intake/Exhaust Camshaft
and Roller Follower
replacement
6.4 Hr.
Add Time
Silverado/
Sierra
Camshaft Lobe Position
Actuator Replacement
0.2Hr
Add Time
Colorado/
Canyon
Camshaft Lobe Position
Actuator Replacement
0.4Hr
Add Time
CT4
Camshaft Lobe Position
Actuator Replacement
0.2Hr
*This is a unique Labor Operation for Bulletin use only.
Version
12
Modified
08/11/2022 - Created on.
01/13/2023 - Updated Model Year and correction.
03/06/2024 Updated Model Year and correction.
05/23/2024 - Updated Model Year and correction.
05/09/2025 - Updated Model Year.
07/28/2025 - Updated to include labor operation
08/15/2025 - Updated to include additional steps for clear related DTC
08/21/2025 - Updated to include 2026 Model Year.
09/08/2025- Updated labor operation
11/5/2025 - Updated and combined labor operations
01/29/2026 - Updated labor op for diagnose/swap profile actuator solenoids
02/11/2026 - Updated warranty section
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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TSB/Document ID: PIP5865L
Replacement Service Bulletin Number:
MFR Communication Date: 2026-02-12
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: UNKNOWN OR OTHER
MFR Component System:
MFR Component Subsystem:
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