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ZF 9HP Park Lock Release Tool for Honda 07AAA-TZ3A100

$95.99
In stock • ships from the USA

Mechanically releases Park on Honda and Acura ZF 9-speed shift-by-wire cars that won't come out of Park, so a dead car can be rolled or towed.

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About this product

A Honda Pilot, Passport or Ridgeline with a flat 12-volt battery, or an Acura MDX or TLX with a dead shift module, has a problem that older cars never had: there is no shift cable to pull. The push-button gear selector on these 9-speed models only sends a request to the transmission, and with no power the transmission stays in Park. You cannot roll it onto a flatbed, push it out of a bay or move it across a lot. This tool is an aftermarket equivalent of Honda special tool 07AAA-TZ3A100, which Honda catalogs as a lock release, and it lets you turn the Park mechanism on the transmission from P to N by hand.

What the park lock release does on a Honda 9-speed

Honda and Acura models from roughly 2015 on that use the ZF-designed 9-speed automatic are shift-by-wire. When you press P, R, N or D, a control module drives an electric actuator on the transmission that rotates the internal shift shaft. That shaft moves the parking pawl into or out of a toothed wheel on the output. With the battery dead, the module down or the actuator failed, nothing turns the shaft, so the pawl stays engaged. This tool seats over the Park-Lock shaft on the transmission and gives you a 3/8 in. drive square to rotate it yourself. The P and N positions are machined into the body, and the steel pull-pin and ring lock the tool once you have set it, so it will not walk back into Park while the car is being moved.

Honda takes the same approach on other shift-by-wire cars. Its ServiceNews article for the 2017-2019 NSX says that when a dead battery or a fault keeps the transmission from going to Neutral, the park lock has to be released by hand with a dedicated special tool. That article covers a different car and tool number, but the logic is the same: a screwdriver or pry bar on the shaft is not the answer.

When you need it

How to confirm before you reach for it

Try the simple things first. Charge or jump the 12-volt battery, cycle the ignition and press N with your foot on the brake. Many stuck-in-Park calls end there. If the selector still will not leave Park with good voltage, the problem is in the shift-by-wire system itself, and the car needs a scan tool to read the shift module and transmission codes. The tool is for moving the vehicle, not for fixing it. If the car moves out of Park but will not drive in any gear, that is a different fault, and our guide to diagnosing a 9-speed with no movement covers what to check next.

Fitment

The listing covers the 9-speed automatic in the 2015-2020 Acura TLX V6, 2016-2020 Acura MDX 3.5L, 2016-2022 Honda Pilot 9AT, 2018-2019 Honda Odyssey 9AT (LX, EX and EX-L), 2019-2025 Honda Passport and 2020-2026 Honda Ridgeline 3.5L V6. Odyssey and Pilot trims built with the 10-speed automatic use a different release and are not covered, and neither are 4-cylinder TLX models. Honda builds its own version of this transmission, so check that your car has the 9-speed before ordering. If you are unsure, send us the year and VIN and we will confirm it.

How to use it safely

A ratchet, extensions and wheel chocks are not included. The tool is machined aluminum with a steel pin and weighs about a pound, so it fits in a tow truck side box. If you are moving the car to fix the transmission itself, you may also need service parts such as a 9HP strainer and pan gasket kit, a 9HP internal harness or a 10-piece 9HP solenoid kit. Those are listed for Chrysler, Jeep and Land Rover 9HP48 units, so match the part number to your Honda transmission before you buy one. Our 9HP identification guide explains the version differences.


Specifications

Replaces tool number
Transmission
Drive
Material
Dimensions
Weight
Fitment
Includes

ZF 9HP Park Lock Release Tool for Honda 07AAA-TZ3A100: common questions

Will this tool fix a Honda that is stuck in Park?

No. It lets you move the car by turning the Park-Lock shaft to Neutral by hand. If the cause is a dead battery, charging it usually brings the gear selector back. If the shift module or Park actuator has failed, the car still needs to be diagnosed with a scan tool.

Does it fit the 2023 Honda Pilot or the 10-speed Odyssey?

No. Those use the 10-speed automatic with a different release. The tool is for the 9-speed: 2016-2022 Pilot 9AT, 2018-2019 Odyssey 9AT (LX, EX and EX-L), 2019-2025 Passport, 2020-2026 Ridgeline, 2016-2020 MDX 3.5L and 2015-2020 TLX V6.

What do I need to turn it?

A 3/8 in. drive ratchet and enough extensions to reach the transmission from under the car. Neither is included, and neither are wheel chocks.

Can I drive the car with the tool holding it in Neutral?

No. It is only for rolling, winching or towing a dead car. Turn the shaft back to P and remove the tool before the vehicle is started.

Is this the genuine Honda tool?

It is an aftermarket equivalent of Honda special tool 07AAA-TZ3A100. It does the same job: it fits over the Park-Lock shaft and rotates it between the machined P and N positions.


Repair guides for this job

Sources
  1. American Honda (via Honda Parts Connection) — 07AAA-TZ3A100 Lock Release - Genuine Honda Parts. Confirms 07AAA-TZ3A100 is the Honda part number cataloged as Lock Release. www.hondapartsconnection.com/oem-parts/honda-lock-release-7aaatz3a100
  2. American Honda Motor Co. (via NHTSA) — ServiceNews B19050C: How to Release the Park Lock (2017-19 NSX). Honda guidance that a dead 12-volt battery or a shift fault requires a manual park lock release with a dedicated special tool; covers the NSX, not the 9-speed models. static.nhtsa.gov/odi/tsbs/2019/MC-10160550-0001.pdf

ZF 9HP Park Lock Release Tool for Honda 07AAA-TZ3A100

$95.99
In stock • ships from the USA • 30-day returns

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