NHTSA ID Number: 10227714
Manufacturer Communication Number: S2221000004
TSB/Document Date: 2022-12-12
Summary
Harsh Shift During Transition From Electric Vehicle (EV) To Hybrid Engine Mode.
Case Number: S2221000004
Release Date: October 2022
Symptom/Vehicle Issue: Harsh Shift During Transition From Electric Vehicle (EV) To
Hybrid
Engine Mode.
Discussion: Some customers may experience a transmission harsh shift during the
transition from EV to hybrid engine mode. This condition typically happens on vehicles
with less than 500 miles. There will not be any Diagnostic Trouble Codes (DTCs) set
when the condition is present. If a technician receives a vehicle with the above
condition, please perform the following repair procedure.
NOTE: For vehicles experiencing the concern that have not yet been delivered to
the customer, skip to the Transmission Adaptation Procedure:
Repair Procedure:
1. Print out the Customer Questionnaire form below and gather additional information
from the customer regarding the concern.
2. Using the information gathered from the customer on when the condition happens,
attempt to duplicate the concern. Was the condition duplicated?
a. Yes>>> Proceed to (Step 3).
b. No>>> The document no longer applies. The transmission may have
adapted, and no repairs are necessary.
3. Using wiTECH, obtain a Vehicle Scan Report and save for your records.
4. Perform the Transmission Adaptation Procedure.
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online
does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear
to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the
appropriate course of action.
Contact STAR Center, or your Technical Assistance Center Via TechConnect, eCONTACT or Service Library
entry if no solution is found.
Stellantis US LLC
Version 4.5 07/22/2022
Transmission Adaptation Procedure:
NOTE: The transmission oil temperature must be above 122°f (50°c) before
performing the adaptation procedure.
NOTE: The High Voltage (HV) battery state of charge (SOC) must be above 20%
before performing this procedure. If the HV battery is below 20%, charge the
battery before continuing.
1. Using wiTECH, navigate to the Transmission Control Module (TCM) Data Tab and
verify the Transmission Oil Temperature is above 122°f (50°c). Please see (Figure
1) If the temperature is too low, drive the vehicle until transmission reaches the
proper temperature before proceeding.
Figure 1
2. Using wiTECH, navigate to the K0- Adaptives group in the TCM Data Tab. Click on
the “+” symbol to expand that group. Please see (Figures 2 & 3)
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online
does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear
to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the
appropriate course of action.
Contact STAR Center, or your Technical Assistance Center Via TechConnect, eCONTACT or Service Library
entry if no solution is found.
Stellantis US LLC
Version 4.5 07/22/2022
Figure 2.
Figure 3.
3. Record the values for the following:
a. K0- Filling Counter
b. K0- Fast Filling Counter
4. Are the K0 Filling and Fast Filling counters greater than 5
a. Yes>>> Perform the TCM Adaptation Drive Learn Routine. For detailed
instructions, please refer to Service Library Service Information Section 28 –
DTC Based Diagnostics > Module, Transmission Control (TCM), 8P75PH >
Standard Procedure > Transmission Control Module (TCM) Adaptation. If the
concern is still present after performing the Drive Learn Routine, please
contact STAR.
b. No>>> Proceed to Step 5.
5. Start the vehicle.
6. Place the vehicle in EV mode by pressing the Electric mode button on the left side
switch bank. Please see (Figure 4)
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online
does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear
to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the
appropriate course of action.
Contact STAR Center, or your Technical Assistance Center Via TechConnect, eCONTACT or Service Library
entry if no solution is found.
Stellantis US LLC
Version 4.5 07/22/2022
Figure 4
NOTE: Keep firm pressure on the brake pedal through the next steps.
7. Press and hold the brake pedal.
8. Place the shifter in Park, Drive, or Neutral.
9. Keeping pressure applied on the brake pedal, monitor the K0 Fill and Fast Fill
counters in the TCM data. The counters should start incrementing within 30
seconds. Did the counter start to increment in 30 seconds?
a. Yes>>> Proceed to (Step 10).
b. No>>> Drive the vehicle to perform an engine on event and repeat steps 6-9
10. Keep pressure applied on the brake pedal until the K0 Fill and Fast Fill counter
reaches 5 or more. Proceed to (Step 11).
11. Perform the TCM Adaptation Drive Learn Routine. For detailed instructions,
please refer to Service Library Service Information Section 28 – DTC Based
Diagnostics > Module, Transmission Control (TCM), 8P75PH > Standard Procedure
> Transmission Control Module (TCM) Adaptation.
12. Test drive the vehicle under the operating conditions that the concern was
present, to verify the repair. Proceed to (Step 13).
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online
does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear
to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the
appropriate course of action.
Contact STAR Center, or your Technical Assistance Center Via TechConnect, eCONTACT or Service Library
entry if no solution is found.
Stellantis US LLC
Version 4.5 07/22/2022
13. Is the vehicle a customer owned vehicle that was brought in for the concern or
was this procedure performed as part of a Pre-Delivery Inspection (PDI)?
a. PDI vehicle>>> No further actions are necessary. Repair complete
b. Customer vehicle brought in for the concern>>> Start a STAR case and report
all results. Be sure to include the Vehicle Scan Report and Customer
Questionnaire results in the case. This information will be used for additional
root cause analysis.
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online
does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear
to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the
appropriate course of action.
Contact STAR Center, or your Technical Assistance Center Via TechConnect, eCONTACT or Service Library
entry if no solution is found.
Stellantis US LLC
Version 4.5 07/22/2022
Customer Questionnaire:
1. Do you experience any harsh shifts while driving in Electric Vehicle (EV) Mode? If
so, at what speeds does the concern typically happen?
2. Do you experience any harsh shifts while driving in Hybrid mode? If so, at what
speeds does the concern typically happen?
3. Do you experience a harsh shift/engagement when the vehicle transitions from EV
mode to Hybrid mode at idle, while driving, or both?
4. If the concern happens when the vehicle is transitioning from EV mode to hybrid
mode while driving, do you experience:
a. Harsh shift when in EV mode prior to transitioning to Hybrid mode?
b. Harsh shift in Hybrid mode after transitioning from EV mode?
c. Harsh shift only when the vehicle transitions from EV to Hybrid mode?
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online
does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear
to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the
appropriate course of action.
Contact STAR Center, or your Technical Assistance Center Via TechConnect, eCONTACT or Service Library
entry if no solution is found.
Stellantis US LLC
Version 4.5 07/22/2022
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TSB/Document ID: S2221000004
Replacement Service Bulletin Number:
MFR Communication Date: 2022-10-14
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
MFR Component System:
MFR Component Subsystem:
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