22-NA-007

Service Bulletin
Bulletin No.:
22-NA-007
Date:
May, 2023
TECHNICAL
Subject:
Poor Engine Performance in Extremely Cold Weather Conditions for LE2 Engines,
Charge Air Cooler (CAC) Icing - Malfunction Indicator Lamp (MIL) Illuminated, DTC
P0299, P0234, P0236, P2227, P00C7 Set
Brand:
Model:
Chevrolet
Cruze
Model Year:
VIN:
from
to
from
to
2016
2019
—
—
Engine:
Transmission:
1.4L
Turbo (LE2)
—
Involved Region or Country
North America
Condition
Some customers may comment that when driving short distances and/or slow speed
driving cycles, their vehicle experiences one or several of the following conditions within
the first 10 to 15 minutes of vehicle operation in extremely cold weather conditions (-18°C
or less / 0°F or less):
• Loss of power
• Hesitation on acceleration
• Stalling condition
• May also notice a Malfunction Indicator Lamp illuminated
• After driving for a period of time, the driveability issues seem to diminish.
This condition may also cause an increase in crankcase pressure, creating oil leaks at
seals and gaskets.
Technicians may find one or more of the following DTCs set:
• P0234
• P0236
• P0299
• P2227
• P00C7
Cause
This condition may be caused by ice accumulation in the charge air cooler (CAC) or
turbocharger wastegate regulator solenoid valve (TCV), causing improper boost
pressures.
Correction
Important: The DTCs and symptoms above are not exclusively related to freezing/icing
conditions. Only follow this bulletin when the condition is directly correlated with extreme
cold of -18°C or less / 0°F or less. System leaks should always be ruled out first for
P0299. Signs of moisture will always be present in the CAC system and are not a reliable
indicator of freezing/icing.
If any of the above conditions are present, allow time for possible ice build up in the CAC
to melt by allowing the vehicle to thaw in a warm environment.
Follow the Service Procedure below once the vehicle has had time to thaw.
Copyright 2023 General Motors LLC. All Rights Reserved.
Page 2
May, 2023
Important: Service agents must comply with all
International, 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.
Important: Allow time for the vehicle to thaw in a warm
environment to avoid damaging or breaking parts that
may be required to be re-installed.
Bulletin No.: 22-NA-007
Turbocharger Wastegate Regulator
Solenoid Valve (TCV) Thermo-Wrap
Service Procedure
Important: A new part number is available for the
Charge Air Cooler (CAC). Replace this part Only if the
CAC has never been replaced previously.
• If the CAC has been replaced, proceed to Step 1.
• If the CAC has not been previously replaced,
install the new CAC. Refer to Charge Air Cooler
Replacement in SI and proceed to step 2.
3686945
1. Remove the turbocharger wastegate regulator
solenoid valve (TCV) (1). Refer to Turbocharger
Wastegate Regulator Solenoid Valve Replacement
in SI.
2. Drain the TCV by turning the valve upside down.
4171562
1. Remove the CAC (2) and drain any moisture built
up. Refer to Charge Air Cooler Replacement in SI.
2. Perform an oil change. Refer to Engine Oil and Oil
Filter Replacement in SI.
Important: Do Not perform an oil change if the oil
change was recently done.
• If the oil change was recently done and no
signs of moisture have been confirmed,
proceed to Turbocharger Wastegate
Regulator Solenoid Valve (TCV)
Thermo-Wrap procedure.
• If the oil change was not previously done or
moisture has been found in the oil, proceed to
step 2 above.
6055068
3. Using clean shop air regulated to 80-100 PSI, blow
through all three ports (1, 2 & 3) for 5
seconds each.
Bulletin No.: 22-NA-007
May, 2023
Page 3
Note: Check port #2 to assure the spring gets lifted off
the seat. This will be determined by the compressed air
not dead heading when applied to port #2. When
applying air to this port a small amount of air should be
observed at port #3 and even less air will be noticed at
port #1. If this does not happen, the TCV plunger may
have hardened deposits from hot operating conditions
which will impede TCV plunger movement, and the
turbocharger wastegate regulator solenoid valve should
be replaced.
⇒ Repeat step 3 twice.
6046334
6. Once the mounting bolt and hoses are properly
installed, pull the lower portion of the wrap upward,
and snap it into position.
7. Clear all DTCs using GDS and evaluate.
6055077
4. Prior to reinstalling the TCV, pre-position the
thermal wrap. This will aid in installation of the
wrap once the TCV is reinstalled.
6046314
Note: The end result of the wrap will surround the TCV
as shown in the graphic above. Do not snap the wrap
until step 6.
5. Install the TCV. Refer to Turbocharger Wastegate
Regulator Solenoid Valve Replacement in SI.
Page 4
May, 2023
Bulletin No.: 22-NA-007
Turbocharger/Supercharger Boost
Pressure Sensor Inspection
Important: Only perform steps 1-5 if DTC P0299 or
P0234 is set.
4108751
1. Remove the turbocharger air pressure sensor (3).
Refer to Turbocharger/Supercharger Boost
Pressure Sensor Replacement in SI.
4910683
Important: Due to the sensitivity of the sensor, Do Not
use any chemical cleaners including water and Do Not
use compressed air to remove contaminates.
2. Inspect the sensor for any contaminates.
Bulletin No.: 22-NA-007
May, 2023
•
5020216
3. Allow time for any ice build-up to melt by placing
the sensor port down.
4. Clean the sensor with a clean towel.
5. Install the sensor. Refer to Turbocharger/
Supercharger Boost Pressure Sensor
Replacement in SI.
Engine Control Module Programming
for 2018–2022 Models
Important: Updated Engine Control Module
calibration: The updated calibration will enable a
revised transmission shift pattern during cold weather
operation which does not use overdrive as frequently.
As a result, the customer may notice elevated engine
RPMs during highway operation. This operating mode
will reduce the potential for ice to build up inside the
charge air cooler, and the potential for setting P0299 or
P0234 diagnostic codes.
Caution: Before downloading the update files, be sure
the computer is connected to the internet through a
network cable (hardwired). DO NOT DOWNLOAD or
install the files wirelessly. If there is an interruption
during programming, programming failure or control
module damage may occur.
• Ensure the programming tool is equipped with the
latest software and is securely connected to the
data link connector. If there is an interruption
during programming, programming failure or
control module damage may occur.
• Stable battery voltage is critical during
programming. Any fluctuation, spiking, over
voltage or loss of voltage will interrupt
programming. Install a GM Authorized
Programming Support Tool to maintain system
voltage. Refer to www.gmdesolutions.com for
further information. If not available, connect a fully
charged 12V jumper or booster pack disconnected
from the AC voltage supply. DO NOT connect a
battery charger.
Page 5
Follow the on-screen prompts regarding ignition
power mode, but ensure that anything that drains
excessive power (exterior lights, HVAC blower
motor, etc) is off.
• Please verify that the radio time and date are set
correctly before inserting USB drive into vehicle
for programming, otherwise an error will result.
• Clear DTCs after programming is complete.
Clearing powertrain DTCs will set the Inspection/
Maintenance (I/M) system status indicators to NO.
Important: The service technician always needs to
verify that the VIN displayed in the TLC left side drop
down menu and the top center window match the VIN
plate of the vehicle to be programmed prior to using
Service Programming System 2 (SPS2) for
programming or reprogramming a module.
• For the TLC application, service technicians need
to always ensure that the power mode (ignition) is
“ON” before reading the VIN from the vehicle’s
VIN master module and that they do not select a
VIN that is already in the TLC application memory
from a previous vehicle.
• If the VIN that shows up in the TLC top center
window after correctly reading the VIN from the
vehicle does not match the VIN plate of the
vehicle, manually type in the VIN characters from
the vehicle VIN plate into the TLC top center
window and use these for programming or
reprogramming the subject module with the
correct vehicle VIN and software and/or
calibrations.
• The Engine Control Module (ECM) is the master
module (for VIP vehicles) that TLC reads to
determine the VIN of the vehicle. If the VIN read
from the vehicle by TLC does not match the VIN
plate of the vehicle, the ECM also needs to be
reprogrammed with the correct VIN, software and
calibrations that match the vehicle’s VIN plate.
• The Body Control Module (BCM) is the master
module (for GEM vehicles) that TLC reads to
determine the VIN of the vehicle. If the VIN read
from the vehicle by TLC does not match the VIN
plate of the vehicle, the BCM also needs to be
reprogrammed with the correct VIN, software and
calibrations that match the vehicle’s VIN plate.
Page 6
May, 2023
Bulletin No.: 22-NA-007
Caution: Be sure the VIN selected in the drop down
menu (1) is the same as the vehicle connected (2)
before beginning programming.
5743643
Important: If the vehicle VIN DOES NOT match, the
message below will be shown.
5877000
Bulletin No.: 22-NA-007
May, 2023
Page 7
5644477
Important: Techline Connect screen shown above.
Important: If the same calibration/software warning is
noted on the TLC or SPS Summary screen, select OK
and follow screen instructions. After a successful
programming event, the Warranty Claim Code (WCC) is
located in the Service Programming System dialogue
box of the SPS Summary screen. Document the WCC
on the job card. No further action is required. Refer to
the Warranty Information section of the bulletin.
1. Reprogram the ECM. Refer to K20 Engine Control
Module: Programming and Setup in SI.
Page 8
May, 2023
Bulletin No.: 22-NA-007
5644478
Note: The screenshot above is an example of module
programming and may not be indicative of the specific
module that is being programmed. Module selection
and VIN information have been blacked out.
Important: To avoid warranty transaction rejections,
you MUST record the warranty claim code provided on
the Warranty Claim Code (WCC) screen shown above
on the job card. Refer to callout 1 above for the location
of the WCC on the screen.
2. Record the Warranty Claim Code on the job card
for warranty transaction submission.
Bulletin No.: 22-NA-007
May, 2023
Grille Winter Cover Installation
Page 9
For Vehicles Equipped with RS Package - Grille
Cover Modification
5946388
Warning: Remove grille cover during temperatures
above 32°F/ 0°C to prevent engine and transmission
overheating. Remove grille cover before towing a
trailer of any size. Failure to do so will decrease
transmission cooling efficiency and possibly cause
damage to the drivetrain.
Install the service winter grille cover around the front
bumper to prevent ice-build in the CAC. The installation
instructions will be provided with the service part.
6002837
1. Starting at the outer tabs of the grille cover,
measure 1 inch from the inside edge of the tab as
shown in the graphic above and draw a line.
Page 10
May, 2023
Bulletin No.: 22-NA-007
6002947
3. Dry fit the tabs into the lower fascia molding to
ensure proper fit.
4. Proceed to install the grille cover on the vehicle as
shown in the Instruction Sheet provided with
the part.
6002926
2. Utilizing a cutoff tool, cut along the marks.
Parts Information
Causal Part
N/A
N/A
Description
Cover, Grille Winter
Model Year
Part Number
Qty
2016–2018
42819129
1
2019
42819130
1
N/A
SHIELD ASM, TCV
All
25205589
1
N/A
COOLER, CHRG AIR
All
42853841
1
N/A
Filter, Oil
N/A
Oil
2016-2019
Refer to the Electronic Parts Catalog (EPC).
Bulletin No.: 22-NA-007
May, 2023
Warranty Information
Important: Warranty coverage code E2 applies for this
module programming event. ECM reprogramming is
covered for 8 years/80,000 miles (U.S.) or 8 years/
130,000 km (Canada).
Note: Warranty Coverage Codes E, E1 apply to Labor
Operation 4088338.
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
4088338*
Charge Air Cooler
Replacement or Draining/
Cleaning
1.2 hrs
Add
IAPT Draining and Cleaning
0.2 hr
Add
Winter Grille Cover
Installation
0.2 hr
Add
Oil Change
0.3 hr
Add
TCV Cleaning and Wrap
Install
0.1 hr
2888368**
Engine Control Module Reprogramming with SPS for
2018–2022 Cruze
0.3 hr
*This is a unique Labor Operation for bulletin use only.
Important: **To avoid warranty transaction rejections,
carefully read and follow the instructions below:
• The Warranty Claim Code must be accurately entered
in the “SPS Warranty Claim Code” field of the
transaction.
• When more than one Warranty Claim Code is
generated for a programming event, it is required to
document all Warranty Claim Codes in the “Correction”
field on the job card. Dealers must also enter one of the
codes in the “SPS Warranty Claim Code” field of the
transaction, otherwise the transaction will reject. It is
best practice to enter the FINAL code provided by
SPS/SPS2.
Page 11
Warranty Claim Code Information Retrieval
If the SPS Warranty Claim Code was not recorded on
the Job Card, the code can be retrieved in the SPS
system as follows:
1. Open TLC on the computer used to program the
vehicle.
2. Select and start SPS2.
3. Select Settings.
4. Select the Warranty Claim Code tab.
The VIN, Warranty Claim Code and Date/Time will be
listed on a roster of recent programming events. If the
code is retrievable, dealers should resubmit the
transaction making sure to include the code in the SPS
Warranty Claim Code field.
Page 12
May, 2023
Bulletin No.: 22-NA-007
Version
6
Modified
Released January 11, 2022
Revised January 14, 2022 – Changed Winter Grille Cover Installation and Oil Change to
Add conditions in the Warranty Information section.
Revised March 15, 2022 – Updated the Engine Control Module Programming section and
added an RS Package Grille Cover Modification section.
Revised May 24, 2022 – Updated the Cause, Correction and Service Procedure sections,
added Turbocharger Wastegate Regulator Solenoid Valve (TCV) Thermo-Wrap section,
added P0234 to first Important under Turbocharger/Supercharger Boost Pressure Sensor
Inspection section and updated Parts and Warranty Information.
Revised October 11, 2022 – Added an Important statement to the Correction, the first
Important statement above the Service Procedure, a graphic to Step 3 under
Turbocharger Wastegate Regulator Solenoid Valve (TCV) Thermo-Wrap section, a Note
under Warranty Information and specific model years to the Engine Control Module
Programming title.
Revised April 27, 2023 – Added an Important statement at beginning of Service
Procedure, added CAC Part Number to Parts Information section and updated Warranty
Information.
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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