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NHTSA ID Number: 11004762

Manufacturer Communication Number: 21-NA-268

TSB/Document Date: 2024-07-16


Summary

This service bulletin provides diagnostic/repair information to correct customer concerns of a Crank No Start or Extended Crank, Malfunction Indicator Lamp (MIL) Illuminated or Possible Increased Brake Pedal Effort.


Bulletin No.: 21-NA-268

Service Bulletin

Date: June, 2024

INFORMATION
Subject:

Brand:

BuickeBay logo

ChevroleteBay logo

GMCeBay logo

Holden

Information on Crank No Start or Extended Crank, Malfunction Indicator
Lamp (MIL) Illuminated, Possible Increased Brake Pedal Effort – DTC
P0014, P0017, P0365 and/or P0366 Set

Model:

Model Year:

VIN:
to

(1.4L, 1.5L)

from

to

Encore

2016

2022

Cruze

2016

2019

Cruze (VIN II Gen B)

2016

2019

Equinox

2018

2022

LYX

Malibu

2016

2024

LFV

Spark

2016

2022

Trax

2019

2022

LE2

Terrain

2018

2022

LYX

Equinox

2018

2020

LYX

Astra Sedan NB4

2017

2018

Astra-K Hatch HB5
and Wagon

2017

2020

Involved Region or Country

from

Engine:

Transmission:

LE2
LE2

LV7

LE2

North America, Argentina, Brazil, Chile, Colombia, Ecuador, Paraguay, Peru, Uruguay,
Middle East, Iraq, Israel, Palestine, Venezuela, GM Korea Company, China, Thailand,
Singapore, Egypt, Other Africa, Australia/New Zealand
Some customers may comment on one or more of the following conditions:
• Crank no start
• Extended crank
• MIL illuminated
• Possible increased brake pedal effort

Condition

Technicians may find one or more of the following DTCs set in the Engine Control Module:
• P0014
• P0017
• P0365
• P0366

Cause

This condition may be caused by exhaust camshaft reluctor out-of-phase.

Information

Complete latest diagnostics in Service Information (SI) for Engine Cranks but Does Not
Run.
If unable to determine the root cause of no start condition using published SI diagnostics,
proceed with the following steps:
⇒ Remove the cam cover assembly and perform steps below to confirm exhaust camshaft reluctor orientation.

Copyright 2024 General MotorseBay logo. All Rights Reserved.

Page 2

June, 2024

Bulletin No.: 21-NA-268

5921667

During disassembly, the vacuum pump drive lugs should also be inspected for damage (Photo above shows damaged vacuum pump drive lugs).

Rotate the exhaust camshaft to position the 2D matrix marking on the camshaft
hex in the 12 o'clock position (Reference the graphic above for 2D marking).

5921669

Bulletin No.: 21-NA-268

June, 2024

Page 3

5921666

Once the exhaust camshaft 2D matrix has been positioned at 12 o'clock, verify the
small tang located on the camshaft reluctor ring (Arrows above showing tang on reluctor) is in-line with the 2D matrix marking.

Important: If the reluctor is out-of-phase, inspect the exhaust camshaft position actuator
dowel pin for damage.

5921670

Also shown are additional reference points used to verify exhaust cam reluctor orientation
to camshaft.
Proper relationship between the 2D matrix marking and the small tang on exhaust cam
reluctor wheel.
If you find the vacuum pump drive lugs are broken and/or the exhaust camshaft reluctor
is out of position, then replacement of the exhaust camshaft and vacuum pump will be
required.
Note: If needed, it will also be necessary to locate and remove the broken vacuum pump
drive lugs and other metal debris during repairs.

Important: Service agents must comply with all
InternationaleBay logo, Federal, State, Provincial, and/or
Local laws applicable to the activities it performs
under this bulletin, including but not limited to
handling, deploying, preparing, classifying,

packaging, marking, labeling, and shipping
dangerous goods. In the event of a conflict
between the procedures set forth in this bulletin
and the laws that apply to your dealership, you
must follow those applicable laws.

Page 4

June, 2024

Bulletin No.: 21-NA-268

Version

3

Modified

Released November 16, 2021
Revised April 27, 2023 – Added an Important statement to the Information section.
Revised June 28, 2024 – Added the 2022 Model Year to certain vehicles and possible
increased brake pedal effort condition.

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: 21-NA-268

Replacement Service Bulletin Number:

MFR Communication Date: 2024-06-29

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: ENGINE

MFR Component System:

MFR Component Subsystem:


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