Get Your Uconnect Serial Number Without Removing the Radio
Access Dealer Mode on your Uconnect screen - no tools required!
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 most useful feature for vehicle owners is the ability to view the radio's serial number directly on-screen. This 14-digit alphanumeric code (typically starting with "T" or "A2C") is essential for obtaining your radio unlock code when the anti-theft system has been triggered.
This method works for Jeep, Dodge, RAM, Chrysler, and Fiat vehicles equipped with Uconnect radios manufactured from 2013 onwards. 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.
Uconnect 8.4 (Classic 2013-2018)
Method 1: Climate Control Buttons
- Hold up, down, and front defrost buttons for 5 seconds
- Enter "Dealer Mode" menu
- Navigate: System Info → Radio Part Info → Serial Number
Method 2: Temperature Buttons
- Hold temperature-up (red) and temperature-down (blue) buttons for 5 seconds
- Enter "Engineering Menu"
- Navigate: System Info → Radio Part Info → Serial Number
Video Tutorials:

Method 1: Climate Control

Method 2: Temperature Buttons
Uconnect 8.4 NEW (2019+) & 12-inch
Access Method:
- Press bottom left and bottom right edges of screen together until Dealer Mode appears
- Important: Press physical edges, NOT screen buttons
- Navigate: System Info → Radio Part Info → Serial Number
Video Tutorials:

8.4 NEW (2019+)

12-inch Display
Uconnect 7-inch (Jeep Compass)
Engineering Mode Access:
- Hold temperature-up (red) and temperature-down (blue) buttons for 5 seconds
- Enter "Engineering Menu"
- Navigate: System Info → Target Main Data → Serial Number
- Example:
TVPQN123E123ZE
Video Tutorial:

7-inch Engineering Mode
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 (Continental/Panasonic)
T00AM394958584
- T00AM = Continental/Panasonic Uconnect 8.4
- T00AE = Continental/Panasonic alternative
- TM9 = Panasonic older generation
- Common in 2013-2020 models
A2C Format (Continental)
A2C94848489393
- A2C = Continental newer generation
- Used in Uconnect 4C and 5 systems
- Common in 2018+ models
- May include additional characters
Troubleshooting: When Dealer Mode Won't Activate
Problem: Button Combination Not Working
Possible Solutions:
- Ensure vehicle is in ACC or ON position (not running)
- For screen edge method: press the physical bezel, not touchscreen buttons
- Hold buttons for full 5 seconds without releasing
- Try pressing buttons simultaneously, not sequentially
- Some vehicles require holding buttons while turning ignition to ACC
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"
- Serial may be labeled as "Serial No", "S/N", or "Part Number"
- Try scrolling - some menus have multiple pages
- On 7" systems, check "Target Main Data" specifically
Alternative: Check for Software Updates
Some 2020+ vehicles had Dealer Mode access restricted via software updates. If you absolutely cannot access Dealer Mode, you'll need to physically remove the radio to view the label on the back/side of the unit.
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: $10-20
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
Understanding why your radio locks helps explain why finding the serial number is important:
When the Radio Locks:
- Battery disconnection - Most common trigger
- 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
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 | 2-5 minutes | 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 | Zero - software only | Moderate - can break trim clips, scratch dash, disconnect wires |
Vehicle Position | ACC/ON (not running) | Off (battery may need disconnection) |
Success Rate | 95%+ (if system supports it) | 100% (serial is always on label) |
When It Works | 2013-2019 models (some 2020+) | All models, all years |
Works With These Popular Models
This Dealer Mode method works across most Stellantis vehicles with Uconnect systems:
Frequently Asked Questions
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.