Get Your Uconnect Serial Number Without Removing the Radio

Access Dealer Mode on supported Uconnect radios - no tools required!

By Uros Radovanovic, Automotive Electronics Specialist January 12, 2024 Updated: October 14, 2026

From $9.99 - money-back guarantee if the code does not work

What You'll Learn in This Guide

Access Dealer Mode Enter the hidden diagnostic menu on supported Uconnect screens without any tools or radio removal

Get Your Serial Number Read the serial number on screen where your radio provides it. The menu, identifier format and access procedure depend on the installed unit.

Multiple Uconnect Versions Step-by-step instructions for the 8.4-inch and 12-inch Uconnect radios covered by Stellantis service bulletins

Quick & Easy Method No radio removal, no tools needed - just the button combination listed for your radio

What Is Dealer Mode?

Dealer Mode (also known as Engineering Mode or Service Mode) is a hidden diagnostic menu built into Uconnect infotainment systems by Fiat Chrysler Automobiles (now Stellantis). This diagnostic interface was designed for dealership technicians to access detailed system information, run diagnostics, and retrieve technical data without physically removing components.

The radio serial number identifies the installed unit. Read the complete Serial Number or S/N from the screen or label; the prefix and character count vary by radio. On Uconnect radios it is usually 12 or 14 characters (TM9 serials have 12, T00BE and T00AM have 14), while Continental A2C labels are longer.

On some Jeep, Dodge, RAM, Chrysler, and Fiat vehicles equipped with Uconnect radios manufactured from 2013 onwards, this method shows the serial number on screen; whether it works depends on the radio installed. Whether you need a Jeep radio code, Dodge radio code, or Chrysler radio code, finding your serial number is the first step to unlocking your radio's anti-theft security system.

Why This Matters: On a radio that supports it, Dealer Mode saves you removing the radio from the dashboard - a process that typically requires special tools, takes 30+ minutes, and risks damaging trim pieces or disconnecting wiring harnesses. Dealer Mode is a built-in service menu, not a modification; for anything that needs official firmware, Uconnect Support is the Stellantis channel for software and map updates.

Uconnect Dealer Mode by Version: Button Combos

Find your radio below. The combinations listed are the ones written in Stellantis service bulletins for these radios and vehicles. A radio that is not listed has no confirmed combination on this page yet, so read its serial from the label. Once dealer mode opens, select System Information → Radio Part Information; on the Uconnect 4C screens shown in the bulletins the serial number is listed there.

Uconnect version	Common in	How to open dealer mode
Uconnect 8.4 / 8.4 NAV (RA3, RA4), 2013-2018	Ram 1500 (DS), 2500 and 3500 2013-2017, Grand Cherokee WK2 2014-2017, Cherokee KL 2014-2018, Durango 2014-2017, Charger, Challenger and 300 2015-2016, Chrysler 200 2015-2017, Renegade 2015-2017, 2017 Pacifica	Press and hold the driver temp up + temp down + front defrost buttons together until the dealer mode screen appears.
Uconnect 4C NAV with 8.4-inch screen (UAQ, UCQ, UAV, UCV), 2018-2023	Wrangler JL, Gladiator JT, Cherokee KL, Compass, Durango, Charger, Challenger, 300, Ram 1500 Classic and Ram 1500 (DT)	Press and hold both lower corners of the screen together for about 7 seconds, until dealer mode appears. The bulletins for the 2017 Charger, Challenger and 300 (8.4-inch UAQ / UAS) and the 2018 Wrangler JL (UAQ) use the temp up + temp down + front defrost combo instead.
12-inch Uconnect with navigation (UAX, UCX)	Ram 1500 (DT), 2019	Press and hold both lower corners of the screen together for about 7 seconds, until dealer mode appears, then select Radio Part Information.
Uconnect 5 (7-inch to 12-inch)	2021 and later Pacifica, Grand Cherokee WL (2022+), Wagoneer and Grand Wagoneer, newer Ram 1500 (DT)	No dealer-mode combination is given in the bulletins we checked. They read the software level under Settings → System Information → Version Information, a screen that does not show the radio serial. Read the serial from the radio label.

Ram 1500 Dealer Mode by Year

Ram 1500	Radio	How to open dealer mode
2013-2017 (DS)	8.4-inch (RA3 / RA4)	Driver temp up + temp down + front defrost, held until dealer mode appears
2018-2021 (DS, including Classic)	8.4-inch Uconnect 4C NAV (UAQ / UCQ)	Both lower screen corners, about 7 seconds
2019-2021 (DT)	8.4-inch Uconnect 4C NAV (UAV / UCV)	Both lower screen corners, about 7 seconds
2019 (DT)	12-inch with navigation (UAX / UCX)	Both lower screen corners, about 7 seconds
Newer DT trucks	Uconnect 5	No dealer-mode combination in the bulletins we checked; read the serial from the radio label

The combinations above are the ones written in Stellantis service bulletins 08-111-19 (8.4-inch RA3 / RA4), 08-007-17 and 08-001-19 (temp + defrost on the 2017 Charger, Challenger and 300 and the 2018 Wrangler JL), 08-007-20, 08-138-21 and 08-003-22 (Uconnect 4C NAV corners), 08-009-19 (12-inch) and 08-062-22 (Uconnect 5 software check) (NHTSA copies). Combinations reported only by owners, for example for 7-inch radios and Uconnect 4 radios without navigation, are left out until they are confirmed.

How to Tell Which Uconnect You Have

Not sure which row of the table is yours? Combine two of these checks:

Window sticker or build sheet: it names the radio, for example "Uconnect 4C NAV with 8.4-inch Display". This is the most reliable check.
Screen size: measure the visible display corner to corner - 5, 7, 8.4, 10.1 or 12 inches.
Built-in Nav app: a map that works without a phone connected usually means a NAV radio (4C NAV or 5 NAV).
Model year: Uconnect 5 started with the 2021 Chrysler Pacifica and spread to other models after that. Most 2013-2018 8.4-inch screens are the earlier RA3 / RA4 radios.
Settings → System Information: lists the software version on most units, and on Uconnect 5 it is the place Stellantis uses to check it.

Select Your Uconnect System:

8.4" RA3 / RA4

4C NAV 8.4" / 12"

Jeep Compass 7" / 430N

Uconnect 8.4 (RA3 / RA4, 2013-2018)

Climate Control Buttons

Press and hold the driver temp up, temp down and front defrost buttons together until the dealer mode screen appears
Enter "Dealer Mode" menu
Navigate: System Info → Radio Part Info → Serial Number (if your radio lists it)

Video Tutorials:

Uconnect 8.4 dealer menu video, 2013-2017 Chrysler vehicles

Uconnect 8.4 dealer menu (2013-2017)

2018 Ram 1500 Uconnect 8.4-inch dealer mode video

2018 Ram 1500, 8.4-inch dealer mode

Uconnect 4C NAV 8.4-inch and 12-inch (2018 and later)

Access Method:

Press and hold both lower corners of the display screen together until Dealer Mode appears (about 7 seconds)
Important: use this on the radios listed in the table above; early software on some of them uses the temp + defrost buttons instead
Navigate: System Info → Radio Part Info → Serial Number

Video Tutorials:

2019 Ram 1500 Uconnect 8.4-inch dealer mode video

2019 Ram 1500, 8.4-inch

2020 Ram 1500, 12-inch

Owner Videos: Jeep Compass 7-inch and Uconnect 430N

The service bulletins we checked give no dealer-mode combination for these radios, so these examples come from owner videos. Each video shows only the radio named, and menus differ by software version. If the steps do not work on your radio, read the serial from the label.

What Dealer Mode Shows (and What It Does Not Do)

Use the radio-information screen to read the identifiers shown by your unit. Diagnostic menus can also contain actions that change settings or reset the radio. Do not select calibration, software-update or factory-reset options just to obtain the serial number. Opening the information screen does not supply the anti-theft code.

HU ID - an internal ID of the head unit
Hardware part number - the hardware version of the radio
Software version and Application version - the installed software level, which is what a dealer checks before an update
BootMicro version - the boot software
Serial number - the one you need for the radio code. Some screens show it with a space after the T (for example T M9320600239); type it without the space.

The list scrolls, so swipe down if the serial is not in view. Take a photo of the screen before you leave the menu.

Reading the information screen is different from selecting a diagnostic action. To resolve an anti-theft code request, obtain the code for the installed unit; opening a menu alone does not recover that code.

Dealer Mode Did Not Open? Check These 4 Things

Use the combination for your exact radio. The method changed over time: the bulletins for the 2017 Charger, Challenger and 300 and the 2018 Wrangler JL use the temp + defrost buttons, later Uconnect 4C NAV bulletins use the two lower screen corners.
Hold everything at the same time and keep holding until the Dealer Mode screen appears - the bulletins give about 7 seconds for the corner combination.
Use the driver-side temperature buttons. The bulletins name the driver temp up and temp down buttons, not the passenger ones.
Uconnect 5 and radios not in the table: no combination is confirmed on this page. If no screen shows the serial, read it from the label on the radio - see the Uconnect removal guide.

Understanding Uconnect Serial Number Format

Once you access Dealer Mode, you'll see a serial number displayed on screen. Understanding the format helps you identify your radio type and manufacturer:

T00AM Format (Mitsubishi)

T00AM1801T0282

Vehicle brands: Chrysler, Dodge, Jeep and RAM
Radio manufacturer: Mitsubishi

A2C Format (Continental)

A2C7515960300123

A2C = Continental newer generation
Used in Uconnect 4C and 5 systems
Common in 2018+ models
May include additional characters

Pro Tip: Take a photo of the serial number screen before exiting Dealer Mode. This ensures you have a permanent record and won't need to access the menu again.

Serial Number vs VIN vs IMEI vs Part Number: Which One We Need

Radio serial number (this is the one): the radio serial number identifies the installed unit. Read the complete Serial Number or S/N from the screen or label; the prefix and character count vary by radio.
VIN: the 17-character vehicle number on the dashboard and registration. It identifies the car, not the radio. A dealer asks for it only to check that you own the vehicle - it cannot produce a Uconnect code (a code from the VIN works only for Renault and Dacia).
IMEI: a 15-digit number that belongs to the built-in cellular modem (Uconnect Access / connected services). It is used for the data connection, not for the radio code.
Part number: identifies the radio model. Thousands of radios share the same part number, so it cannot give you a code.
Engine number: stamped on the engine and has nothing to do with the radio or its code.

Found the Serial on Your Screen? Get Your Uconnect Code

Enter the complete serial shown by your radio and follow the lookup form instructions. Check the characters against a photo before submitting; a format check alone does not establish that you copied the serial of the correct unit.

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Serial Number from radio (VIN not required)

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Not sure which radio you have? Browse Uconnect radio codes by model

Troubleshooting: When Dealer Mode Won't Activate

Problem: Button Combination Not Working

Possible Solutions:

Use the combination listed for your exact radio in the table above
Press the buttons or corners at the same time, not one after another
Keep holding until the Dealer Mode screen appears (about 7 seconds in the service bulletins)

Problem: Can't Find Serial Number in Menu

Navigation Tips:

Menu structure varies by Uconnect version
Look for: "System Info", "Radio Info", or "Part Info"
Look for Serial Number, Serial No. or S/N. A field labeled Part Number identifies the part and should not be entered as the radio serial number.
Try scrolling - some menus have multiple pages

Alternative: Read the Radio Label

If your radio is not in the table above, Dealer Mode does not open, or the menu does not list a serial number, read the serial from the label on the back or side of the unit. That means removing the radio.

What to Do After Finding Your Serial Number

Once you have your radio's serial number, here are your options for obtaining the unlock code:

Option 1: Online Services

Speed: Instant to 24 hours

Cost: from $9.99

Get your Uconnect radio code here - Most convenient. Services like ours use manufacturer databases to retrieve codes via serial number lookup.

Option 2: Dealership

Speed: 1-3 business days

Cost: $150-250

Most expensive. Requires appointment, VIN, and proof of ownership. They use the same databases as online services.

Option 3: Original Documentation

Speed: Immediate (if found)

Cost: Free

Check owner's manual, glove box, or purchase paperwork. Many vehicles include a code card from the factory.

How Anti-Theft Radio Security Works

Whether a radio asks for its code after a power interruption depends on the installed unit. These are the situations in which a code request usually appears:

When a Code Request Can Appear:

Battery disconnection - on units that lock after power loss
Battery replacement - Cuts power to radio
Dead battery - Complete power loss
Radio removal - Physical disconnection
Fuse replacement - Radio circuit interruption
Electrical work - Any power system maintenance

How It Prevents Theft:

Radio becomes worthless to thieves without code
Code is permanently tied to radio serial number
Cannot be reset or bypassed without manufacturer access
Each radio has unique 4-digit unlock code
Code stored in encrypted manufacturer database
Only retrievable via authorized database lookup

Security Note: The anti-theft system was implemented industry-wide in the early 2000s after car audio theft became epidemic. Modern systems use encrypted pairing between the radio and vehicle ECU for enhanced security.

Dealer Mode vs. Physical Radio Removal

There are two methods to find your Uconnect serial number. Here's a detailed comparison:

Factor	Dealer Mode (This Guide)	Physical Removal
Time Required	A few minutes, where the radio supports it	30-60 minutes
Tools Needed	None	Trim removal tools, screwdrivers, possibly radio keys
Skill Level	Beginner - anyone can do it	Intermediate - mechanical knowledge helpful
Risk of Damage	Low if you only read the information screens - do not select calibration, update or reset options	Moderate - can break trim clips, scratch dash, disconnect wires
Vehicle Position	Ignition on, radio on	Off (battery may need disconnection)
Success Rate	Only on radios that show the serial in the menu	High - if the label is present and readable
When It Works	Radios listed in the table above	All models, all years

Recommendation: Try Dealer Mode first if your radio is listed in the table above. If it is not listed, or the menu does not show a serial, read the label instead. See our physical removal guide if needed. Physical Removal Guide

Popular Models With Uconnect Radios

Uconnect radios are fitted across these Stellantis vehicles. Whether Dealer Mode shows the serial depends on the radio installed, so check the table above first. Get your radio code for these brands:

Click on any vehicle to get your radio code instantly

Frequently Asked Questions

Opening Dealer Mode to read information is a normal service step: Stellantis service bulletins send dealership technicians to the same menu to check the radio software level. Reading the information screens does not change anything, but the menu can also contain actions that change settings or reset the radio, so do not select calibration, software-update or factory-reset options. Once you have your serial number, you can get your Uconnect radio code instantly here.

Reading the information screens, such as Radio Part Information, only displays data. The risk is in the other entries: diagnostic menus can also contain actions that change settings or reset the radio. Do not select calibration, software-update or factory-reset options just to obtain the serial number.

Many 2021 and later vehicles have a Uconnect 5 radio. The Stellantis service bulletins we checked read the software level of these radios under Settings > System Information rather than in dealer mode, and we have not confirmed an on-screen serial procedure for them. Your alternative is physical radio removal or contacting a dealership. We support all Jeep, Dodge, RAM, and Chrysler models.

Yes. Each radio unit has its own unique serial number permanently assigned during manufacturing. If you install a different/replacement radio, it will have a different serial number and require a different unlock code. The code is tied to the physical radio unit, not your vehicle. You'll need to get a new code for the replacement radio - get it instantly here.

The Stellantis service bulletins we checked do not name an ignition position for opening Dealer Mode. The radio has to be on, and the vehicle should be parked - never try a button combination while driving.

Take a clear photo of the Dealer Mode screen showing the serial number. This ensures accuracy and provides a permanent record. If you transcribe it manually, double-check each character - a single wrong digit will result in an incorrect unlock code. Check the full identifier against the screen or label; its length varies by unit. Photographing the serial-number field helps you verify any characters that are easy to confuse. Learn more about verifying your serial number correctly.

Use the back arrow or the close (X) button on the screen until you are back at the normal display. The Stellantis service bulletins simply tell technicians to back out of Dealer Mode once they have read the information.

It depends on the year and the radio. 2013-2017 Ram 1500 (DS) with the 8.4-inch RA3 or RA4 radio: press and hold the driver temp up, temp down and front defrost buttons together until the dealer mode screen appears. 2018-2021 Ram 1500 (DS, including the Classic) and 2019-2021 Ram 1500 (DT) with the 8.4-inch Uconnect 4C NAV, and the 2019 Ram 1500 (DT) with the 12-inch radio: press and hold both lower corners of the screen for about 7 seconds. Then open System Information > Radio Part Information to look for the serial number. These are the combinations in Stellantis service bulletins; for other radios, including Uconnect 5, read the serial from the radio label.

No. The combinations on this page are the ones Stellantis service bulletins give for the 8.4-inch RA3 and RA4 radios, the 8.4-inch Uconnect 4C NAV and the 12-inch Ram 1500 radio. We have not confirmed a procedure for other radios, including Uconnect 5, whose software level the bulletins read under Settings > System Information instead. When no screen shows the serial, read it from the label on the radio.

No. A Uconnect code is calculated from the radio serial number, not from the VIN, IMEI, part number or engine number. A dealer uses the VIN only to check ownership. Read the complete Serial Number or S/N in dealer mode or on the radio label; the prefix and character count vary by radio.

Radio code pages for these models

Chrysler 300 Chrysler Pacifica Dodge Charger Dodge Durango Jeep Grand Cherokee Ram 1500

Radio Removal Guide

Can't access Dealer Mode? Learn how to physically remove your Uconnect radio to find the serial number label.

Read Guide

Avoid Scams

12 steps to identify legitimate radio code services and protect yourself from fraudulent websites.

Learn More

Unlock Your Uconnect Radio

Got your serial from the screen? Next step: how the Uconnect anti-theft code works and how to enter it.

Read Guide

Additional Resources

Video Tutorials

Visit our YouTube channel for detailed video guides covering different Uconnect models and troubleshooting tips.

Physical Removal Guide

If Dealer Mode doesn't work for your vehicle, see our complete Uconnect radio removal guide with step-by-step instructions.

Still stuck? Join our community forums or contact us for personalized assistance. Include your vehicle year, make, model, and Uconnect system version for fastest help.