Is the 2019 4500 code delivered instantly?

Codes are sent immediately. Rare Ram cases may take up to 24 hours.

Is there a refund option in case a code fails?

We offer a full refund if the code doesn't work. A quick proof may be required. See our Refund Policy for full details.

2019 Ram 4500 Radio Code: How to Get It Back?

How 2019 Ram 4500 Radio Code Lookup Works

Rather than relying on Ram dealership lookup or online threads you can generate the code online with the radio S/N.
Start by finding the serial number. You will always find it on the unit itself, and in some cases it can be visible on the 4500's display.
Type it into the field above, and the software will calculate the correct 2019 4500 unlock code.
After getting it, type it in using 4500's radio buttons to release the blockade successfully.
The entire process takes less than a minute for most users and requires no VIN, documents, or technical knowledge.

Radio Code Input Guide

After locating the radio serial and retrieved the unlock code, the final step is entering it into your radio.

Ram OEM units display a locked screen when ready for input.

The process is usually straightforward, but button layouts and confirmation methods may vary depending on the radio version installed in your 4500.

Step-by-Step Code Input Guide

To input the unlock code on the 2019 Ram 4500's Uconnect 4C:

The 8.4" screen shows "ENTER CODE" after a battery event.
Tap the touchscreen keypad to enter each digit of the 4-digit code.
The radio restores after the 4th digit – nothing else needed.

Lockout Warning: 3 wrong attempts = 60-minute lockout. Keep ignition ON. Cycling the ignition restarts the wait.

Step-by-Step Code Input Guide

Once the unlock code has been retrieved, the 2019 Ram 4500 Uconnect 4 head unit can be unlocked at the dash without a scan tool or dealer visit.

Limited Attempt Warning: Mopar/Uconnect head units only accept three incorrect tries before the radio enters a WAIT state. If the lockout activates, the radio must remain powered with the ignition in RUN for roughly 30 continuous minutes (the vehicle may be driven during this time) before another attempt is allowed. Repeated wrong-code lockouts can extend the wait significantly, so confirm every digit before pressing it.
Place the ignition in RUN/ACC so the radio powers up but the engine stays off.
Wait for the display to show CODE, Please enter Anti-Theft Code, or a similar prompt.
On the Uconnect 4C 8.4 (UAQ/UCQ) and 12-inch UAX, tap the on-screen number pad to enter each digit and confirm with the OK/Enter touch button.
On the 5-inch UAG base radio, use the numbered preset buttons (1-0) to key each digit of the code in sequence; confirm with the OK/Enter soft key if the unit prompts for it.
If WAIT appears after wrong attempts, leave the radio powered with the ignition in RUN for the documented cool-down period before trying the correct code again.

If a correct-looking code is rejected, double-check the radio serial that was used to retrieve the code, and that the VIN tied to the code matches the truck the radio is currently installed in - a VIN mismatch is the most common reason an apparently correct code is refused.

Radio Serial Number Explained - Finding It on Your Ram

The initial step is finding the radio serial.

Many people assume the code depends on the Ram model or year, but in reality, the whole process depends on the unique radio unit's serial number.

The serial is the key used to calculate the correct unlock code.

This is actually better, because if you have an aftermarket radio, the VIN or other Ram-specific data wouldn't help.

Depending on the radio version used, you may be able to see the serial directly from the screen or by checking the label on the radio chassis.

Factory Radios on the 2019 Ram 4500

The 2019 Ram 4500 - part of the all-new fifth-generation DT HD platform launched for 2019 with a redesigned dash - shipped with the Uconnect 4 family of head units. Across the trim ladder (Tradesman, Big Horn/Lone Star, Laramie, Power Wagon on the 2500, Limited and on Chassis Cab models Tradesman, SLT, Laramie and Limited) several screen sizes were available.

Uconnect 3 / Uconnect 4 (sales code UAG) - 5-inch base touchscreen. Standard on Tradesman and base Chassis Cab. Visual ID: small 5-inch screen mounted high in the centre stack with conventional climate controls below; Bluetooth audio and basic media support.
Uconnect 4C 8.4 NAV (sales code UAQ, Canadian equivalent UCQ) - 8.4-inch touchscreen with built-in GPS navigation, Apple CarPlay and Android Auto (wired). Standard or part of the upgrade group on most mid trims. Visual ID: 8.4-inch landscape glass dropped into the upper centre stack with a dedicated NAV/Map tile on the home screen.
Uconnect 4C NAV 12-inch (sales code UAX) - 12-inch portrait touchscreen with split-screen capability, GPS navigation, Apple CarPlay and Android Auto (wired). Optional on Laramie, standard on Limited. Visual ID: large vertical 12-inch glass that fills the upper centre stack and can show two apps stacked on top of one another.

Quick test for the 2019 4500: 5-inch screen means UAG, 8.4-inch landscape means UAQ/UCQ, and a tall 12-inch portrait screen means UAX.

Quick Method: Find the Serial Number on the Screen

The method for 2019 Ram 4500 is this:

The 2019 Ram 4500 commercial chassis cab is equipped with the Uconnect 4C (RA4) 8.4" touchscreen fitted in the work cab interior. The serial number is retrievable via Dealer Mode:

Turn ignition to ACC or ON.
Press the bottom-left and bottom-right corners of the physical screen bezel (plastic frame, not glass) simultaneously for 5 seconds.
Dealer Mode appears on the display.
Go to: System Info → Radio Part Info → Serial Number.

Note Dealer Mode may be restricted on some 2019 4500 units after a software update. If so, physical removal is required.

Display-Based Serial Number Retrieval

The 2019 Ram 4500 ships with Uconnect 4 hardware (8.4-inch UAQ/UCQ landscape and the optional 12-inch UAX portrait), and both touchscreens respond to a hidden dealer/diagnostic shortcut that prints the radio serial on screen - no head-unit removal required.

Switch the ignition to RUN/ACC and let the Uconnect interface finish booting.
Press and hold the driver-side temperature UP button, the driver-side temperature DOWN button and the front DEFROST button together for roughly 5-10 seconds until the dealer/engineering screen opens.
If the climate-button shortcut does nothing, press and hold the bottom-left and bottom-right corners of the screen at the same time for about 5-10 seconds.
Once inside the diagnostic interface, browse to the radio/system info section to read the serial number printed on screen.
Photograph the screen so each character can be transcribed without typos - treat 0/O, 1/I and B/8 carefully.

The 5-inch UAG base radio is much less consistent with the on-screen shortcut, so for that unit fall back on the chassis-label method described below.

Serial Number on the Unit

If the serial does not appear on screen, the next step is checking the radio itself.

Many Ram radios require physical access to the serial sticker attached to the unit.

Typical approach:

Start by completely shutting off the engine - pull the key out.
Then lift the trim panel.
Next, release the mounting points and move the radio forward.
Look for a barcode label showing the serial number.

If Dealer Mode is not accessible on your 2019 Ram 4500, the radio needs to be removed to read the serial label:

Turn off the vehicle.
Remove the surrounding bezel with a plastic pry tool. The 4500's work cab trim has friction clips – work from the lower edge to release.
Remove the mounting screws (Torx T20 or T25).
Pull the unit out to access the serial label on the side or top of the chassis.

Cables don't need to be unplugged while you photograph the serial.

View Serial by Pulling Out the Radio Unit

The factory radio in the 2019 Ram 4500 also carries a printed barcode/sticker label on the chassis. On the fifth-generation DT HD dash the head unit (especially the 12-inch portrait UAX/UBQ) sits inside a wide centre-stack bezel that integrates the screen surround with adjacent climate and storage trim, so the work needs to be done methodically.

Safety first: turn the ignition fully off, remove the key fob from the cabin, disconnect the negative battery terminal and wait at least 10-15 minutes before touching wiring so the SRS/airbag capacitors can discharge. Avoid yellow airbag/SRS connectors entirely and use plastic trim tools so nothing shorts or breaks.
Tools you will need: plastic trim/panel removal kit, T20 Torx bit, Phillips #2 screwdriver, 7mm socket and short extension, flashlight, clean microfibre to rest the bezel on.
Removal overview (2019 Ram 4500 dash): lift the rubber beauty pad on top of the centre stack to expose two T20 Torx screws and remove them; lift the rubber mat in the small cubby behind the 120V outlet to expose a third T20 Torx screw and remove that as well. With those three screws out, pull the centre-stack bezel rearward starting at the lower edge to release the spring clips around its perimeter. The bezel carries the hazard/HVAC switches, so unclip those harnesses before setting it aside on a clean cloth. Remove the four 7mm screws securing the radio cage to the dash support bracket, then slide the head unit straight rearward and disconnect the antenna lead and the multi-pin power/data connectors at the rear.
Where the serial sits: the serial number is printed on a barcode/sticker label on the top or one side of the radio chassis, alongside the part number and supplier markings. Photograph the label up close and double-check ambiguous characters such as 0/O, 1/I and B/8 before submitting the value.
Tips and professional advice: the 12-inch UAX/UBQ portrait head unit on the 4500 is deeply integrated into the wider centre-stack trim and shares hardware with the climate cluster, hazard switch and 120V outlet bezel - if the trim resists, stop and double-check for hidden screws rather than pulling harder. Owners who are not comfortable working around airbag wiring or releasing the wide integrated bezel should have a professional installer or dealer technician remove the unit instead; an experienced shop typically completes this in well under an hour.

Ram 4500 2019 radio serial number label location

Example: Ram 4500 serial number label location

These are the Common Serial Formats

The 2019 Ram 4500 Uconnect 4C (RA4) serial number formats:

T00AM – Harman Uconnect 4C (primary prefix)
T00BE – Continental version
T0MYD – Updated Harman production (2020+)

Radio designation: RA4 (Uconnect 4C, 8.4"). Serial: 14 characters. The Ram 4500 chassis cab shares the same RA4 platform as the Ram 3500 and 5500.

Important The serial number is different from the part number (P05064... or 68...). Only the 14-char serial generates the code.

Typical Serial Number Formats for 2019 Ram 4500 Radios

The factory radios fitted to the 2019 Ram 4500 use the standard Mopar/Uconnect head-unit serial style. The exact prefix depends on the Uconnect tier shipped with the truck and the supplier (Mitsubishi Electric, Continental, Harman or Visteon) that built the unit, so any prefix list found online should be treated as a guide rather than a strict rule.

Uconnect 4C 8.4 (UAQ / UCQ) and 12-inch UAX

Typically a 14-character alphanumeric string printed on the chassis label.
Commonly begins with T - frequent prefixes include T00AM, TM9 and TQ1 - or with A2C on Continental-built variants.
Usually a continuous run of letters and digits with no dashes or spaces.

Uconnect 3 / Uconnect 4 5-inch (UAG)

Usually carries a Mopar/Visteon or Panasonic-style serial on the chassis sticker, so the printed label on the unit itself is the authoritative reference.
Always copy the serial exactly as printed and avoid guessing characters that look unclear.

What Caused the Radio to Lock?

The Ram 4500's Uconnect 4C activates anti-theft after the battery is disconnected or replaced. Commercial chassis cab owners encounter this most often because of:

Battery replacement during service — the most common trigger. Commercial vehicles undergo frequent service and battery changes are common.
Upfit electrical work — 4500 chassis cabs are frequently upfitted which requires electrical disconnects, activating the anti-theft.
Blown fuse — frequent after commercial electrical work.
Buying fleet-retired without the code.

The code is derived from the radio's serial number — not the VIN.

Fixing Common Code Entry Problems for 2019 4500

The Uconnect 4C serial on the Ram 4500 can be read via Dealer Mode (System Info → Radio Part Info → Serial Number) or on the barcode sticker on the unit housing after removal. Serial: 14 chars starting with T00AM, T00BE, or T0MYD.

Ignore the part number (P05... or 68...) on the same label.

A rejected code on the Ram 4500's Uconnect 4C usually means a serial number error. The RA4 label has both the serial (T00AM, T00BE, or T0MYD, 14 chars) and the part number (P05... or 68...) — the serial alone generates the code.

Chassis cab labels may be hard to read. Clean the sticker or photograph it. Reach out for a free re-check if needed.

No code prompt means the Uconnect 4C isn't locked. Force the lock: briefly disconnect the battery, then turn ignition ON. The prompt shows on startup.

The Ram 4500's Uconnect 4C uses touchscreen-only code entry — press each digit on the on-screen number pad. No physical preset buttons are used. The radio unlocks after the 4th digit.

The Ram 4500's Uconnect 4C locks after 3 wrong entries. The screen keeps showing "ENTER CODE" but blocks all input.

To reset: Keep ignition ON for a full 60 minutes. Any power interruption restarts the countdown. chassis cab vehicles must complete the full wait in one session.