P1DB7 Torque converter clutch performance fault stored by the transmission computer on Jeep and Chrysler vehicles

Jeep/Chrysler P1DB7 torque converter clutch performance

Severity not verified — if the car runs badly, have it inspected

Stellantis links the code to a check engine light and possible transmission fluid overheating, and owners report jerking and stalling, but we found no source on how long it is safe to drive.

It gets more serious if:

  • Inspect soon: The transmission jerks on take-off, stalls or the fluid overheats.

Source: how we rate severity

P1DB7 in short

On Jeep and Chrysler vehicles, P1DB7 means the transmission computer logged a torque converter clutch performance fault. Stellantis has bulletins that fix it on some 2022-2024 Wranglers and Gladiators by reprogramming the transmission computer. Owners also report jerking and stalling, so get it checked soon; we found no drive-safety guidance.

The torque converter clutch locks the engine to the transmission at cruising speed. The computer compares actual slip with its target; when the clutch does not perform as commanded it stores P1DB7-00.

Stellantis TSBs 21-018-25 to 21-022-25 cover 2022-2024 Wranglers and Gladiators: they list P1DB7-00 with the check engine light and possible fluid overheating, and the fix is a computer reprogram. Only the summaries were read.

Owner complaints on 2015-2016 Cherokees and a 2015 Chrysler 200 describe hard shifting, a jerk on take-off and a stall, and some say the code would not clear. Those older vehicles are not covered by the Wrangler bulletins.

Pick your make

P1DB7 is a manufacturer-specific code: its meaning depends on who built the car.

Other makes: meaning not verified. Check with a scan tool that reads manufacturer definitions.

Most likely causes

  1. Transmission computer software that needs an update

    Supported by vehicle data
    Why it ranks here
    Stellantis bulletins for 2022-2024 Wranglers and Gladiators prescribe a TCM reprogram for P1DB7-00; only summaries were read.
    What would change this
    Rises if a dealer finds your VIN covered and the software is not current. Falls if it is already updated.
    How to test the transmission control module (tcm)

  2. Worn torque converter clutch or related hardware

    Possible — needs testing
    Why it ranks here
    Owners report a jerk and stall with the code on older vehicles, but none of the sources names a failed part.
    What would change this
    Rises if the code returns after the software update with shudder on lock-up. Falls if the update clears it.

  3. Overheated transmission fluid

    Possible — needs testing
    Why it ranks here
    The bulletin summary says customers may also experience transmission fluid overheating, but it does not say that causes the code.
    What would change this
    Rises if the fluid is dark or burnt. Falls if the fluid is clean and cool.

What to test first

Start at step 1. Each result tells you what it means and where to go next.

  1. Ask a Jeep or Chrysler dealer whether a TCM update bulletin applies to your VIN and whether the software is current.

    Low risk

  2. Have a shop check the transmission fluid condition and temperature, and whether the converter clutch locks without slip on a road test.

    Best left to a shopTool: scan tool with live data

    Warning:Checking the fluid and lock-up needs the vehicle running and often lifted; leave it to a shop.

Symptoms

  • Check engine light on
  • Jerk on take-off or hard shifting Gets more serious: stop and have it checked.
  • Stall on the highway Gets more serious: stop and have it checked.

How to fix

  1. Ask the dealer to check your VIN for a computer update before paying for transmission repairs.

Parts and cost context

  • Transmission control module (TCM):Stellantis says to reprogram the computer, not replace it.

Labor varies by vehicle and shop; get a quote before you approve a repair.

Compare used part prices on PartPriceGuide

On your vehicle

Ram

  • 2014–2026 · 3500

    Supported by vehicle data

    Bulletin S2621000003 REV.A names P1DB7 on the Ram 3500. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2014–2026 · 2500

    Supported by vehicle data

    Bulletin S2621000003 REV.A names P1DB7 on the Ram 2500. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2014–2026 · 1500

    Supported by vehicle data

    Bulletins S2621000003, S2621000003 REV.A name P1DB7 on the Ram 1500. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2017–2025 · ProMaster

    Supported by vehicle data

    Bulletin 21-040-25 names P1DB7 on the Ram Promaster. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2017–2025 · Promaster City

    Supported by vehicle data

    Bulletin 21-040-25 names P1DB7 on the Ram Promaster City. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • S2621000003 REV.AStatus unverified

    The vehicle will exhibit a service transmission/check engine warning indicator for the following transmission

    2014–20261500, 2500, 3500 · issued · NHTSA 11030138

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • S2621000003Status unverified

    Service transmission/check engine warning indicator for the 850RE, 8HP50, 8HP70, 8HP75, 8HP75-PHEV

    2019–2025durango · issued · NHTSA 11029770

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • 21-040-25Status unverified

    948TE Transmission Reaction Shaft Service Bushing Kit Customers may experience a Malfunction Indicator Lamp

    2017–2025promaster, promaster-city · issued · NHTSA 11024056

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

Dodge

  • 2012–2026 · Charger

    Supported by vehicle data

    Bulletin S2621000003 REV.A names P1DB7 on the Dodge Charger. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2012–2026 · Durango

    Supported by vehicle data

    Bulletins S2621000003, S2621000003 REV.A name P1DB7 on the Dodge Durango. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2012–2026 · Challenger

    Supported by vehicle data

    Bulletin S2621000003 REV.A names P1DB7 on the Dodge Challenger. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • S2621000003 REV.AStatus unverified

    The vehicle will exhibit a service transmission/check engine warning indicator for the following transmission

    2014–20261500, 2500, 3500 · issued · NHTSA 11030138

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • S2621000003Status unverified

    Service transmission/check engine warning indicator for the 850RE, 8HP50, 8HP70, 8HP75, 8HP75-PHEV

    2019–2025durango · issued · NHTSA 11029770

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

Chrysler

  • 2012–2023 · 300

    Supported by vehicle data

    Bulletin S2621000003 REV.A names P1DB7 on the Chrysler 300. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2015–2025 · 200

    Supported by vehicle data

    Bulletin 21-040-25 names P1DB7 on the Chrysler 200. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2015–2025 · Pacifica

    Supported by vehicle data

    Bulletin 21-040-25 names P1DB7 on the Chrysler Pacifica Plug In Hybrid. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2015–2025 · Pacifica

    Supported by vehicle data

    Bulletin 21-040-25 names P1DB7 on the Chrysler Pacifica. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2015–2025 · Voyager

    Supported by vehicle data

    Bulletin 21-040-25 names P1DB7 on the Chrysler Voyager. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2015 · 200

    Supported by vehicle data

    A 2015 Chrysler 200 owner reports a jerk on take-off, a stall and P1DB7-00 torque converter clutch performance.

  • S2621000003 REV.AStatus unverified

    The vehicle will exhibit a service transmission/check engine warning indicator for the following transmission

    2014–20261500, 2500, 3500 · issued · NHTSA 11030138

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • 21-040-25Status unverified

    948TE Transmission Reaction Shaft Service Bushing Kit Customers may experience a Malfunction Indicator Lamp

    2017–2025promaster, promaster-city · issued · NHTSA 11024056

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

Jeep

  • 2014–2026 · Wagoneer

    Supported by vehicle data

    Bulletins S2621000003, S2621000003 REV.A name P1DB7 on the Jeep Wagoneer. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2014–2026 · Grand Wagoneer

    Supported by vehicle data

    Bulletins S2621000003, S2621000003 REV.A name P1DB7 on the Jeep Grand Wagoneer. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2014–2026 · Wrangler

    Supported by vehicle data

    Bulletins S2621000003, S2621000003 REV.A name P1DB7 on the Jeep Wrangler 4Xe. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2014–2026 · Wrangler

    Supported by vehicle data

    Bulletins 21-018-25, 21-018-25 REV. A, 21-020-25, 21-020-25 REV. A, 21-022-25 REV. A, S2621000003, S2621000003 REV.A name P1DB7 on the Jeep Wrangler. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2014–2026 · Grand Cherokee

    Supported by vehicle data

    Bulletins S2621000003, S2621000003 REV.A name P1DB7 on the Jeep Grand Cherokee 4Xe. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2014–2026 · Grand Cherokee L

    Supported by vehicle data

    Bulletins S2621000003, S2621000003 REV.A name P1DB7 on the Jeep Grand Cherokee L. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2014–2026 · Grand Cherokee

    Supported by vehicle data

    Bulletins S2621000003, S2621000003 REV.A name P1DB7 on the Jeep Grand Cherokee. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2018–2026 · Gladiator

    Supported by vehicle data

    Bulletins 21-019-25, 21-019-25 REV. A, 21-021-25 REV. A, 21-023-25 REV. A, S2621000003 name P1DB7 on the Jeep Gladiator. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2017–2023 · Compass

    Supported by vehicle data

    Bulletin 21-040-25 names P1DB7 on the Jeep Compass. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2017–2023 · Renegade

    Supported by vehicle data

    Bulletin 21-040-25 names P1DB7 on the Jeep Renegade. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2015–2016 · Cherokee

    Possible — needs testing

    Owners of 2015 and 2016 Cherokees report P1DB7, hard shifting and a code that would not clear; these years are not in the Wrangler and Gladiator bulletins.

  • S2621000003 REV.AStatus unverified

    The vehicle will exhibit a service transmission/check engine warning indicator for the following transmission

    2014–20261500, 2500, 3500 · issued · NHTSA 11030138

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • S2621000003Status unverified

    Service transmission/check engine warning indicator for the 850RE, 8HP50, 8HP70, 8HP75, 8HP75-PHEV

    2019–2025durango · issued · NHTSA 11029770

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • 21-040-25Status unverified

    948TE Transmission Reaction Shaft Service Bushing Kit Customers may experience a Malfunction Indicator Lamp

    2017–2025promaster, promaster-city · issued · NHTSA 11024056

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • 21-018-25 REV. AStatus unverified

    Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL)

    2023wrangler · issued · NHTSA 11016270

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • 21-019-25 REV. AStatus unverified

    Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL)

    2023gladiator · issued · NHTSA 11016272

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • 21-020-25 REV. AStatus unverified

    Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL)

    2024wrangler · issued · NHTSA 11016273

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • 21-021-25 REV. AStatus unverified

    Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL)

    2024gladiator · issued · NHTSA 11016274

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • 21-022-25 REV. AStatus unverified

    Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL)

    2022wrangler · issued · NHTSA 11016276

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • 21-023-25 REV. AStatus unverified

    Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL)

    2022gladiator · issued · NHTSA 11016277

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • 21-018-25Status unverified

    Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL)

    2023wrangler · issued · NHTSA 11015654

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • 21-019-25Status unverified

    Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL)

    2023gladiator · issued · NHTSA 11015655

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • 21-020-25Status unverified

    Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL)

    2024wrangler · issued · NHTSA 11015660

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

Alfa Romeo

  • 2017–2026 · Giulia

    Supported by vehicle data

    Bulletin S2621000003 REV.A names P1DB7 on the Alfa-Romeo Giulia. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 2017–2026 · Stelvio

    Supported by vehicle data

    Bulletin S2621000003 REV.A names P1DB7 on the Alfa-Romeo Stelvio. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • S2621000003 REV.AStatus unverified

    The vehicle will exhibit a service transmission/check engine warning indicator for the following transmission

    2014–20261500, 2500, 3500 · issued · NHTSA 11030138

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

FIAT

  • 2017–2023 · 500X

    Supported by vehicle data

    Bulletin 21-040-25 names P1DB7 on the Fiat 500X. Stellantis says to reprogram the TCM. Only the bulletin summary was read.

  • 21-040-25Status unverified

    948TE Transmission Reaction Shaft Service Bushing Kit Customers may experience a Malfunction Indicator Lamp

    2017–2025promaster, promaster-city · issued · NHTSA 11024056

    Reprograms the TCM with the latest software for a MIL with P1DB7-00, torque converter clutch performance. Only the NHTSA flat-file summary was read, not the bulletin itself.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

No curated relationships for P1DB7 yet.

All Transmission codes

Sources and review

  1. FCA 21-018-25 Rev A: TCM updates for P1DB7-00 (2023 Wrangler) — Stellantis (FCA US) ,
  2. NHTSA complaint 1321610: 2015 Chrysler 200, P1DB7-00 — NHTSA (owner complaint)
  3. NHTSA complaint 1709816: 2016 Jeep Cherokee, P1DB7 with B10E9 B10EA — NHTSA (owner complaint)
  4. NHTSA complaint 1670784: 2015 Jeep Cherokee, P1DB7 not clearing — NHTSA (owner complaint)
  5. Cal. Code Regs. Tit. 13, § 1968.2 — Malfunction and Diagnostic System Requirements (OBD II) — California Air Resources Board (via Cornell LII)
Last reviewed
Written by
Saurabh K.
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