Revision 1 March 2022
Dealer Service Instructions for:

Customer Satisfaction Notification Z33
Heating Ventilation AC Module
NOTE: Added additional Model Year

Remedy Available
2021 - 2022 (WL) Jeep Grand Cherokee
NOTE: Some vehicles above may have been identified as not involved in this
campaign and therefore have been excluded from this campaign.
IMPORTANT: Some of the involved vehicles may be in dealer new vehicle
inventory. Dealers should complete this campaign service on these vehicles
before retail delivery. Dealers should also perform this repair on vehicles in used
vehicle inventory and those vehicles in for service. Involved vehicles can be
determined by using the VIP inquiry process.

Subject
The Heating Ventilation Air Conditioning (HVAC) module on about 7,903 of the
above vehicles may have software that may not enable the Air Conditioning (AC)
Compressor to function, which will result in the AC not functioning.

Repair
Reprogram the HVAC with updated software.

© Copyright 2022, FCA US LLC, All Rights Reserved

(kka)

Customer Satisfaction Notification Z33 – Heating Ventilation AC Module Page 2

Parts Information
No parts required for the campaign.

Parts Return
No parts return required for this campaign.

Special Tools
The following special tools are required to perform this repair:
➢ NPN

wiTECH MicroPod II

➢ NPN

Laptop Computer

➢ NPN

wiTECH Software

Customer Satisfaction Notification Z33 – Heating Ventilation AC Module Page 3

Service Procedure

NOTE: The wiTECH scan tool must be used to perform this customer
satisfaction notification. If the HVAC is aborted or interrupted during
reprogramming, it must be restarted. The HVAC software must be at the
latest software calibration level after completing this customer satisfaction
notification.

1. Open the hood and install a battery charger. Verify that the charging rate
provides 13.0 to 13.5 volts. Do not allow the charger to time out during the
flash process. Set the battery charger timer (if so equipped) to continuous
charge.
NOTE: Use an accurate stand-alone voltmeter. The battery charger volt
meter may not be sufficiently accurate. Voltages outside of the specified
range will cause an unsuccessful flash. If voltage reading is too high, apply
an electrical load by activating the park or headlamps and/or HVAC
blower motor to lower the voltage.
2. Connect the wiTECH micro pod II to the vehicle data link connector.
3. Place the ignition in the “RUN” position.
4. Open the wiTECH 2.0 website.
5. Enter your “User id” and “Password” and your “Dealer Code”, then select
“Sign In” at the bottom of the screen. Click “Accept”.
6. From the “Vehicle Selection” screen, select the vehicle to be updated.

Customer Satisfaction Notification Z33 – Heating Ventilation AC Module Page 4

Service Procedure [Continued]
7. From the “Action Items” screen, select the “Topology” tab.
8. From the “Topology” tab, select the “HVAC” module icon.
9. From the “Flash” tab, compare the “Current Electronic Control Unit (ECU)
Part Number” with the “New ECU Part Number” listed.
➢ If the “Current ECU part Number” is the same as the “New Part
Number”, proceed to Step 14.
➢ If the “Current ECU part Number” is NOT the same as the “New Part
Number”, continue with Step 10.
10. From the HVAC tab, select the latest HVAC flash part number. Read the flash
special instructions page. Select “OK” to continue.
11. From the flash ECU agreement page, agree to terms by checking the box.
12. Select “Flash ECU” and then follow the wiTECH screen instructions to
complete the flash.
13. Confirm the software is at the latest available calibration level.
14. Using wiTECH, perform a HVAC module “Reset ECU”. This routine is
available under the ’Guided Diagnostics.
15. Click “View DTCs”, select “Clear All DTCs”, click “Continue” and then
click “Close”.
16. Place the ignition in the “OFF” position and then remove the wiTECH micro
pod II device from the vehicle.
17. Remove the battery charger from the vehicle.
18. Close the vehicle hood and return the vehicle to the customer or vehicle
inventory.

Customer Satisfaction Notification Z33 – Heating Ventilation AC Module Page 5

Completion Reporting and Reimbursement
Claims for vehicles that have been serviced must be submitted on the
DealerCONNECT Claim Entry Screen located on the Service tab. Claims paid
will be used by FCA to record Customer Satisfaction Notification service
completions and provide dealer payments.
Use the following labor operation numbers and time allowances:
Labor Operation
Number

Time
Allowance

Inspect HVAC software level

18-Z3-31-81

0.2 hours

Inspect and reprogram HVAC module

18-Z3-31-82

0.3 hours

NOTE: See the Warranty Administration Manual, Recall Claim Processing
Section, for complete claim processing instructions.

Dealer Notification
To view this notification on DealerCONNECT, select “Global Recall System” on
the Service tab, then click on the description of this notification.

Owner Notification and Service Scheduling
All involved vehicle owners known to FCA are being notified of the service
requirement by mail. They are requested to schedule appointments for this service
with their dealers. A generic copy of the owner letter is attached.

Customer Satisfaction Notification Z33 – Heating Ventilation AC Module Page 6

Vehicle Lists, Global Recall System, VIP and Dealer Follow Up
All involved vehicles have been entered into the DealerCONNECT Global Recall
System (GRS) and Vehicle Information Plus (VIP) for dealer inquiry as needed.
GRS provides involved dealers with an updated VIN list of their incomplete
vehicles. The owner’s name, address and phone number are listed if known.
Completed vehicles are removed from GRS within several days of repair claim
submission.
To use this system, click on the “Service” tab and then click on “Global Recall
System.” Your dealer’s VIN list for each campaign displayed can be sorted by:
those vehicles that were unsold at campaign launch, those with a phone number,
city, zip code, or VIN sequence.
Dealers should perform this repair on all unsold vehicles before retail
delivery. Dealers should also use the VIN list to follow up with all owners to
schedule appointments for this repair.
VIN lists may contain confidential, restricted owner name and address information that was
obtained from the Department of Motor Vehicles of various states. Use of this information is
permitted for this notification only and is strictly prohibited from all other use.

Additional Information
If you have any questions or need assistance in completing this action, please
contact your Service and Parts District Manager.
Customer Service / Field Operations
FCA US LLC

This notice applies to your vehicle,

CUSTOMER SATISFACTION NOTIFICATION
Heating Ventilation Air Conditioning Module

[Model Year and Model]
VIN XXXXXXXXXXXXXXXXX

Z33

LOGO

VEHICLE PICTURE

Dear [Name],
At FCA US LLC, we recognize that the success of our business depends on the satisfaction of
our customers. We are constantly monitoring the quality of our products and looking for
opportunities to improve our vehicles even after they are sold. Because your long-term
satisfaction is important to us, we are contacting you on important improvements we would
like to make to your vehicle [1]. This will be done at no charge to you.
We are recommending the following improvements be performed on certain [2021-2022
Model Year (WL) Jeep Grand Cherokee] vehicles.
WHY DOES MY VEHICLE NEED REPAIRS?
The Heating Ventilation Air Conditioning (HVAC) Module in your vehicle [1] may have
software that may not enable the Air Conditioning (AC) Compressor to function, which will
result in the AC not functioning.

YOUR SCHEDULING OPTIONS
1. RECOMMENDED OPTION
Call your authorized Chrysler /
Dodge / Jeep® / RAM Dealership
2. Call the FCA Recall Assistance
Center at 1-800-853-1403. An
agent
can
confirm
part
availability and help schedule an
appointment
3. Visit recalls.mopar.com, scan the
QR code below, or download the
Mopar Owner’s Companion App.

QR Code

HOW DO I RESOLVE THIS CUSTOMER SATISFACTION NOTIFICATION?
FCA US will repair your vehicle free of charge (parts and labor). To do this, your dealer
will reprogram the HVAC module. The estimated repair time is about ½ hour. In
addition, your dealer will require your vehicle for proper check-in, preparation, and check-out
during your visit, which may require more time. Your time is important to us, so
we recommend that you schedule a service appointment to minimize your inconvenience.
Please bring this letter with you to your dealership.
TO SCHEDULE YOUR FREE REPAIR,
CALL YOUR CHRYSLER, DODGE, JEEP OR RAM DEALER TODAY
WHAT IF I ALREADY PAID TO HAVE THIS REPAIR COMPLETED?
If you have already experienced this specific condition and have paid to have it repaired, you
may visit www.fcarecallreimbursement.com to submit your reimbursement request online. [2]
Once we receive and verify the required documents, reimbursement will be sent to you within
60 days. If you have had previous repairs performed and/or already received reimbursement,
you may still need to have the repair performed.
We apologize for any inconvenience, but are sincerely concerned about your satisfaction.
Thank you for your attention to this important matter.

Get access to recall notifications,
locate your nearest dealer, and more
through this website or Mopar
Owner’s Companion App. You will be
asked to provide your Vehicle
Identification Number (VIN) to
protect and verify your identity.
DEALERSHIP INSTRUCTIONS
Please reference CSN Z33.

Customer Assistance/Field Operations
FCA US LLC

Mr. Mrs. Customer
1234 Main Street
Hometown, MI 48371

[1] If you no longer own this vehicle, please help us update our records. Call the FCA Recall Assistance Center at 1-800-853-1403 to update your information.
[2] You can also mail in your original receipts and proof of payment to the following address for reimbursement consideration: FCA Customer Assistance, P.O. Box 218004, Auburn Hills, MI 48321-8007, Attention: Recall Reimbursement.