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 Dodge/Chrysler/Jeep Nag1

Name: TCM Flash Programming Dodge/Chrysler/Jeep Nag1
Brand: N2 Speed
SKU: NAG1TCM
Price: 99.99 USD
Availability: InStock
Rating: 5 (1 reviews)

(1 review) Write a Review

$99.99

SKU:

NAG1TCM

Shipping:

Calculated at Checkout

Compatible Vehicles:

2005-2014 Dodge Charger, Challenger, Magnum; Chrysler 300/300C/SRT8; Jeep Grand Cherokee

Supported Transmissions:

NAG1 (W5A580) 5-Speed Automatic

Compatible Engines:

3.6L V6, 5.7L HEMI, 6.1L SRT8, 6.4L SRT

Service Type:

Mail-In Bench Service

Turnaround Time:

1 Day

Description

NAG1 TCM Flash & Programming Service

N2 Speed's NAG1 TCM flash and programming service updates your transmission control module to the latest factory calibration. The NAG1 (W5A580) is the 5-speed automatic transmission used across a wide range of Dodge, Chrysler, and Jeep vehicles. Over time, Chrysler releases updated calibrations that improve shift quality, fix known issues, and optimize drivability.

What This Service Includes

Latest calibration update — we flash the most current factory TCM software
Shift quality restoration — fixes rough, delayed, or erratic shifting
Fault code resolution — clears persistent transmission-related DTCs
Replacement TCM programming — if installing a used or replacement module, we program it to your vehicle
1-day turnaround — fast bench service at our Pompano Beach, FL facility

When You Need a NAG1 TCM Flash

Harsh or delayed shifts that have developed over time
Transmission stuck in limp mode
Installing a used or replacement NAG1 TCM
Persistent P0700, P0730, or other transmission fault codes
After a transmission rebuild or replacement

Supported Vehicles

The NAG1 (W5A580) transmission is found in:

Dodge — Charger, Challenger, Magnum (2005–2014 5.7L, 6.1L SRT8)
Chrysler — 300, 300C, 300 SRT8
Jeep — Grand Cherokee (3.6L, 5.7L, 6.1L, 6.4L SRT)

Looking for a performance TCM tune instead of a factory flash? Check out our NAG1 Performance TCM Service for faster shifts, raised line pressure, and torque management removal.

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

5
File delivered fast

Posted by Chris J. on Apr 1st 2025

Straightforward process. Sent my info, got the file back the same day. Exactly what was described and works great.