A/T System Symptom Troubleshooting Index(10-Speed A/T) (2025)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2025 Honda Odyssey, 2024 Honda Odyssey, 2023 Honda Odyssey, 2022 Honda Odyssey, and 2021 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Do an all DTC check with the HDS, and troubleshoot any DTCs first before following the repair procedures listed in the index.

Symptom	Probable cause(s)	Notes
Shift position indicator blinks current position/mode for 2 seconds intervals (no DTCs are stored)	TCM SET UP procedure unfinished	Do the TCM SET UP procedure completely - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) .
Shift position indicator displays an improper position/mode	F-CAN circuit error Gauge control module defective SBW shifter assembly defective TCM defective	Check the F-CAN communication line by using the gauge control module self-diagnostic function - Refer to: GAUGES SELF-DIAGNOSTIC FUNCTION . Check the indicator drive circuit in the gauge control module by using the gauge control module self-diagnostic function - Refer to: GAUGES SELF-DIAGNOSTIC FUNCTION . Replace the SBW shifter assembly - Refer to: SBW SHIFTER ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) . Replace the TCM (included in the valve body assembly) - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) .
M indicator does not come on even though paddle shifter is operated in sequential sportshift mode	F-CAN circuit error Paddle shifter circuit error Gauge control module defective SBW shifter assembly defective	Troubleshoot the paddle shifter circuit - Refer to: Paddle Shifter Circuit Troubleshooting . Check the F-CAN communication line by using the gauge control module self-diagnostic function - Refer to: GAUGES SELF-DIAGNOSTIC FUNCTION . Check the indicator drive circuit in the gauge control module by using the gauge control module self-diagnostic function - Refer to: GAUGES SELF-DIAGNOSTIC FUNCTION . Replace the SBW shifter assembly - Refer to: SBW SHIFTER ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) .
Transmission does not upshift/downshift when operating paddle shifter	Paddle shifter circuit error TCM defective	Troubleshoot the paddle shifter circuit - Refer to: Paddle Shifter Circuit Troubleshooting . Replace the TCM (included in the valve body assembly) - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) .
Engine runs, but vehicle does not move in any positions/modes	Low ATF level Drive plate defective Transmission incorrectly installed Torque converter defective Axle disengaged or damaged Valve body assembly defective Transmission defective TCM defective	Check the ATF level and condition - Refer to: ATF Replacement and Level Check (10-Speed A/T) . Check the drive plate for wear and damage - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the drive plate if it is worn or damaged - Refer to: DRIVE PLATE REMOVAL AND INSTALLATION (10-SPEED A/T) . Check for an incorrectly installed transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the torque converter - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the valve body assembly (including with the TCM) - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) . Replace the transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .
Vehicle moves in R, but not in D	Valve body assembly defective Transmission defective TCM defective	Replace the valve body assembly (including with the TCM) - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) . Replace the transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .
Vehicle moves in D, but not in R	Valve body assembly defective Transmission defective TCM defective	Replace the valve body assembly (including with the TCM) - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) . Replace the transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .
Poor acceleration; engine revs up abnormally high when starting off in D and R	Low ATF level Drive plate defective Transmission incorrectly installed Torque converter defective Valve body assembly defective Transmission defective	Check the ATF level and condition - Refer to: ATF Replacement and Level Check (10-Speed A/T) . Check the drive plate for wear and damage - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the drive plate if it is worn or damaged - Refer to: DRIVE PLATE REMOVAL AND INSTALLATION (10-SPEED A/T) . Check for an incorrectly installed transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the torque converter - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the valve body assembly - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) . Replace the transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .

Symptom	Probable cause(s)	Notes
Poor acceleration; stall speed high in D	Valve body assembly defective Transmission defective	Replace the valve body assembly - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) . Replace the transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .
Poor acceleration; stall speed high in R	Valve body assembly defective Transmission defective	Replace the valve body assembly - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) . Replace the transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .
Poor acceleration; stall speed low	Torque converter defective	Replace the torque converter - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .
Engine idle vibration	Torque converter defective	Replace the torque converter - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .
Vehicle moves in N	Excessive ATF level Valve body assembly defective Transmission defective	Check the ATF level and condition - Refer to: ATF Replacement and Level Check (10-Speed A/T) . Replace the valve body assembly - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) . Replace the transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .
Delayed engagement after shifting from N to D, or excessive shock when shifting	Valve body assembly defective Transmission defective	Replace the valve body assembly - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) . Replace the transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .
Delayed engagement after shifting from N to R, or excessive shock when shifting	Valve body assembly defective Transmission defective	Replace the valve body assembly - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) . Replace the transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .
Excessive shock on all upshifts and downshifts	Low ATF level ATF deteriorated	Check the ATF level and condition - Refer to: ATF Replacement and Level Check (10-Speed A/T) .
Noise from transmission in all positions/modes	Drive plate defective Transmission incorrectly installed Torque converter defective Valve body assembly defective Transmission defective	Check the drive plate for wear and damage - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the drive plate if it is worn or damaged - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) . Check for an incorrectly installed transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the torque converter - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the valve body assembly - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) . Replace the transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .
Noise from transmission while driving	Drive plate defective Transmission incorrectly installed Torque converter defective Valve body assembly defective Transmission defective	Check the drive plate for wear and damage - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the drive plate if it is worn or damaged - Refer to: DRIVE PLATE REMOVAL AND INSTALLATION (10-SPEED A/T) . Check for an incorrectly installed transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the torque converter - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the valve body assembly - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) . Replace the transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .
Vibration in all positions/modes	Drive plate defective Transmission incorrectly installed Torque converter defective Valve body assembly defective Transmission defective	Check the drive plate for wear and damage - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the drive plate if it is worn or damaged - Refer to: DRIVE PLATE REMOVAL AND INSTALLATION (10-SPEED A/T) . Check for an incorrectly installed transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the torque converter - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the valve body assembly - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) . Replace the transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .
Transmission will not shift into P, or transmission cannot shift out of P	Transmission defective	Replace the transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .
Torque converter clutch does not disengage; engine stalls easily	Drive plate defective Transmission incorrectly installed Torque converter defective	Check the drive plate for wear and damage - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the drive plate if it is worn or damaged - Refer to: DRIVE PLATE REMOVAL AND INSTALLATION (10-SPEED A/T) . Check for an incorrectly installed transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the torque converter - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .

Symptom	Probable cause(s)	Notes
Torque converter clutch does not disengage; no power at low to medium speed	Drive plate defective Transmission incorrectly installed Torque converter defective	Check the drive plate for wear and damage - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the drive plate if it is worn or damaged - Refer to: DRIVE PLATE REMOVAL AND INSTALLATION (10-SPEED A/T) . Check for an incorrectly installed transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the torque converter - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .
Torque converter clutch does not disengage; booming noise or vibration at low to medium speed	Drive plate defective Transmission incorrectly installed Torque converter defective	Check the drive plate for wear and damage - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the drive plate if it is worn or damaged - Refer to: DRIVE PLATE REMOVAL AND INSTALLATION (10-SPEED A/T) . Check for an incorrectly installed transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the torque converter - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .
Torque converter clutch does not disengage; excessive shift shock	Drive plate defective Transmission incorrectly installed Torque converter defective	Check the drive plate for wear and damage - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the drive plate if it is worn or damaged - Refer to: DRIVE PLATE REMOVAL AND INSTALLATION (10-SPEED A/T) . Check for an incorrectly installed transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the torque converter - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .
Torque converter clutch does not operate smoothly	Drive plate defective Transmission incorrectly installed Torque converter defective Valve body assembly defective	Check the drive plate for wear and damage - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the drive plate if it is worn or damaged - Refer to: DRIVE PLATE REMOVAL AND INSTALLATION (10-SPEED A/T) . Check for an incorrectly installed transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the torque converter - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the valve body assembly - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) .
Torque converter clutch does not engage	Drive plate defective Transmission incorrectly installed Torque converter defective Valve body assembly defective	Check the drive plate for wear and damage - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the drive plate if it is worn or damaged - Refer to: DRIVE PLATE REMOVAL AND INSTALLATION (10-SPEED A/T) . Check for an incorrectly installed transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the torque converter - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the valve body assembly - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) .
Shift position indicator does not work	TCM defective	Replace the TCM (included in the valve body assembly) - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) .
Speedometer and odometer do not work	Countershaft speed sensor defective TCM defective	Replace the countershaft speed sensor A/T SPEED SENSOR REMOVAL AND INSTALLATION (10-SPEED A/T) . Replace the TCM (included in the valve body assembly) - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) .
Engine does not start	Drive plate defective Transmission incorrectly installed Torque converter defective Valve body assembly defective Transmission defective	Check the drive plate for wear and damage - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the drive plate if it is worn or damaged - Refer to: DRIVE PLATE REMOVAL AND INSTALLATION (10-SPEED A/T) . Check for an incorrectly installed transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the torque converter - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the valve body assembly - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) . Replace the transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .
Engine stalls when shifted to D from N	Drive plate defective Transmission incorrectly installed Torque converter defective	Check the drive plate for wear and damage - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the drive plate if it is worn or damaged - Refer to: DRIVE PLATE REMOVAL AND INSTALLATION (10-SPEED A/T) . Check for an incorrectly installed transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the torque converter - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .
Engine stalls when shifted to R from N	Drive plate defective Transmission incorrectly installed Torque converter defective	Check the drive plate for wear and damage - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the drive plate if it is worn or damaged - Refer to: DRIVE PLATE REMOVAL AND INSTALLATION (10-SPEED A/T) . Check for an incorrectly installed transmission - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) . Replace the torque converter - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .
Auto idle stop system is not working (with auto idle stop system)	Valve body assembly defective TCM defective	Replace the valve body assembly - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) . Replace the TCM (included in the valve body assembly) - Refer to: TCM AND VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION (10-SPEED A/T) .
Excessive shift shock after replacing torque converter	Torque Converter Correction Value Learning procedure unfinished	Do the Torque Converter Correction Value Learning procedure completely - Refer to: AUTOMATIC TRANSMISSION REMOVAL AND INSTALLATION (10-SPEED A/T) (2021 2022 2023 2024 2025) .