What is a PCM unlock?

A PCM unlock removes the factory encryption from the Powertrain Control Module so professional tuning tools can read and write calibration data. On most 2015+ Dodge, Jeep, Chrysler, and RAM vehicles, unlocking is required before custom tuning can be performed.

Why do 2015+ Dodge, Jeep, and RAM vehicles require unlocking?

Starting in 2015, FCA implemented security protocols that restrict tuning access through the OBD port on many vehicles. Unlocking enables calibration access so changes to airflow, torque management, fueling, and other tables can be flashed safely.

Do I have to mail in my PCM?

Yes. The unlock process is performed on a bench and requires the PCM to be removed from the vehicle and shipped in for service. Once unlocked, the PCM can typically be read and written via OBD using supported tuning platforms.

How long does the PCM unlock process take?

Typical turnaround is 1–3 business days after the PCM is received, plus shipping time. Tracking is provided when the module ships back.

What vehicles commonly need a PCM unlock?

Most 2015+ Dodge, Jeep, Chrysler, and RAM vehicles with encrypted controllers require unlocking before tuning. Common examples include 2015+ Charger, Challenger, 300, Grand Cherokee, and RAM 1500. If you are unsure, provide your VIN and we can verify.

What controllers are supported for PCM unlocking?

Common encrypted FCA controllers include GPEC2A, GPEC3, GPEC5, and NGC. Compatibility can vary by year and model, so VIN verification is recommended if you are not sure which PCM your vehicle uses.

Is a PCM unlock safe?

Yes. Unlocking is designed to enable calibration access and does not change stock drivability by itself. The vehicle will operate normally on a stock calibration or a custom tune after unlocking.

Can I return the PCM to stock after it is unlocked?

Yes. An unlocked PCM can still run a stock calibration file. Unlocking enables access, but you can flash stock or custom files as needed using a supported tuning platform.

Will unlocking void my warranty?

Unlocking enables tuning access, and any calibration changes may affect manufacturer warranty coverage. If warranty is a concern, some customers keep their original PCM stock and use a spare PCM for modifications.

Do I still need HP Tuners credits after unlocking?

Yes. Unlocking enables access, but you still need the appropriate interface and licensing (credits) to read, license, and flash the vehicle with HP Tuners or other supported tools.

Can you tune my vehicle after unlocking?

Yes. We offer custom remote tuning for bolt-ons, camshaft upgrades, injector scaling, boost setups, and torque model optimization. Pairing an unlock with a custom calibration is the best way to improve performance and drivability.

TCM Flash Programming HP-70/75/90/95 8 Speed Transmission

Name: TCM Flash Programming HP-70/75/90/95 8 Speed Transmission
Brand: N2 Speed
SKU: TCM8SPFL
Price: 99.99 USD
Availability: InStock
Rating: 4 (1 reviews)

(1 review) Write a Review

$99.99

SKU:

TCM8SPFL

Shipping:

$25.00 (Fixed Shipping Cost)

Compatible Vehicles:

2015-2024 Dodge Charger, Challenger; Chrysler 300; RAM 1500, TRX; Jeep Grand Cherokee

Supported Transmissions:

ZF 8HP70, 8HP75, 8HP80, 8HP85, 8HP90, 8HP95

Compatible Engines:

5.7L HEMI, 6.4L 392 HEMI, 6.2L Hellcat Supercharged

Service Type:

Mail-In Bench Service

Turnaround Time:

1 Day

Description

HP70/75/90/95 TCM Flash Programming — ZF 8-Speed Transmission

N2 Speed's TCM flash programming service covers all ZF 8-speed automatic transmissions used in Dodge, Chrysler, Jeep, and RAM vehicles. The HP70, HP75, HP80, HP85, HP90, and HP95 designations represent different torque ratings of the same ZF 8-speed family — and we flash them all.

What This Service Includes

Latest calibration update — current factory TCM software flashed to your module
8-speed swap support — if you've swapped an 8-speed transmission into a vehicle that originally had a different gearbox, we can program the TCM to work with your setup
Replacement TCM programming — installing a used or replacement 8-speed TCM? We program it to your vehicle
Fault code resolution — clears persistent 8-speed transmission DTCs
1-day turnaround — fast bench service at our Pompano Beach, FL facility

When You Need This Service

Performing an 8-speed transmission swap (e.g., upgrading from a NAG1 to an 8HP)
Replacing a failed TCM with a used or new unit
Harsh, delayed, or erratic shifts in your 8-speed
Transmission stuck in limp mode after a battery disconnect or module failure
After a transmission rebuild or torque converter replacement

Supported Transmissions

8HP70 (HP70) — Charger, Challenger, 300 (5.7L, 6.4L HEMI)
8HP75 (HP75) — RAM 1500 (5.7L HEMI), Grand Cherokee
8HP90 (HP90) — Challenger/Charger Hellcat, Durango SRT
8HP95 (HP95) — RAM TRX (6.2L Supercharged)

How to Send Your Module

Once your order is placed, ship your module with a copy of your order confirmation to:

N2 Speed
1461 SW 30th Ave.
Pompano Beach, FL 33069

We recommend shipping via UPS or FedEx with tracking and insurance.

Related Resources

Reviews

1 Review

4
Exactly what I needed

Posted by Ray on Feb 18th 2025

The transmission shifts so much better now. Gone are the lazy, delayed shifts. It's like having a completely different transmission. Very happy.

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TCM Flash Programming HP-70/75/90/95 8 Speed Transmission