Can't Locate Your Unit's S/N? Follow The Steps Below for Chrysler Pacifica 2019
The first part is to locate the radio's S/N.
Based on the head unit type installed in your 2019 Pacifica, the S/N can be found either through the display menu or by checking the label on the radio itself.
Follow the steps below to identify your serial quickly.
Radios Offered in the 2019 Chrysler Pacifica
The 2019 Pacifica continued with the same Uconnect 4 / 4C head-unit lineup that launched on the RU in 2017. Three factory units were available depending on trim and option packages, all sharing a common centre-stack bezel design.
Factory head units for the 2019 Pacifica
The base radio is the Uconnect 4 with 5-inch display (UAG) - a 5-inch touchscreen without factory navigation, fitted to LX and entry Touring trims. The mid-range option is the Uconnect 4 with 8.4-inch display (UCQ), an 8.4-inch touchscreen with Apple CarPlay and Android Auto but without factory-activated navigation, common on better-equipped Touring-L / Touring-L Plus builds. The top option is the Uconnect 4C NAV with 8.4-inch display (UAQ) - the same 8.4-inch hardware as the UCQ but with factory-activated GPS navigation, HD Radio, SiriusXM Travel Link and SiriusXM Guardian, often paired with Limited.
Identifying which one you have
Screen size is the quickest indicator: a 5-inch screen is the UAG, while 8.4-inch screens are either UCQ or UAQ. If the 8.4-inch home screen has a native Nav tile and turn-by-turn routing, you have the UAQ. An 8.4-inch unit without a factory nav button is typically the UCQ. The Uconnect Theater rear-seat entertainment package is a separate option that does not change the front head-unit code.
Before Removing the Radio, Try This Screen Method
Try the following for your 2019 Chrysler Pacifica:
The 2019 Chrysler Pacifica — Chrysler's all-new minivan replacing the Town & Country — features the Uconnect 8.4" Classic (RA3). The Pacifica positions the 8.4" screen higher in the dash relative to earlier minivans, with the climate controls in a row below the screen.
Press and hold Climate Up, Climate Down, and Front Defrost simultaneously for 5 seconds with ignition in ACC or ON. Dealer Mode opens. Navigate to: System Info → Radio Part Info → Serial Number.
Screen-Based Serial Lookup Method
Most 2019 Pacifica trims left the dealer with the 8.4-inch Uconnect head unit, which supports a hidden dealer menu that can display the radio's internal serial number. Reading it on screen is much quicker than dropping the radio out of the dash.
Uconnect 4 (UCQ) and Uconnect 4C NAV (UAQ) - 8.4-inch
Place the ignition in the RUN position so the touchscreen is fully booted. Press and hold the driver's temperature UP, temperature DOWN, and front DEFROST buttons at the same time for around 7 seconds. A dealer/diagnostic menu should appear on the 8.4-inch screen.
From this menu, choose the radio-information entries (typically the first options shown). They list serial numbers, software/hardware revisions and similar identifiers. Note the full serial down exactly as printed, including any letters at the start such as T0 or TM9. Tap Done, or cycle the ignition, to exit the menu.
Uconnect 4 with 5-inch display (UAG)
For the smaller 5-inch UAG head unit, an equivalent on-screen serial-number readout is not consistently documented for the 2019 Pacifica. If the hidden menu does not surface a serial on the UAG, the chassis-label method described under the radio-removal block is the dependable fallback.
Pacifica's Hardware Label Method
If the serial number cannot be accessed via display, use the removal method.
Most Chrysler Pacifica OEM radios include a label with the serial number printed on the chassis.
The process:
- Shut down the car.
- Carefully remove surrounding panel pieces.
- Remove fasteners holding the radio.
- Move slightly to inspect the label.
If Dealer Mode is unavailable on the 2019 Chrysler Pacifica Pacifica, the RA3 unit must be physically removed from the high-mounted dash position. The Pacifica's minivan-style dash allows access once the trim is detached.
- Remove the bezel panel with a plastic trim tool.
- Remove the four Phillips mounting screws.
- Pull the unit forward to find the serial label on the side or back of the chassis.
Note: the Pacifica has a slightly different trim removal sequence compared to older Chrysler minivans — check a model-specific guide if unsure.
Pacifica's Hardware Label Method
If the on-screen method is unavailable, or the radio is stuck on the CODE prompt and you cannot reach the dealer menu, the chassis label is the most reliable source for the serial number on a 2019 Pacifica.
Safety preparation
Turn the ignition fully off and remove the key fob from the cabin. Disconnect the negative terminal of the 12V battery and wait several minutes before working near the dash so any airbag-related circuits can fully discharge. Stay clear of yellow airbag harnesses while pulling trim.
Tools you should have ready
Plastic trim/panel pry tools, a driver that matches the radio retaining screws (commonly Phillips or 7 mm), and a phone/camera to photograph the label.
Removal overview
Begin by gently prying off the lower trim panel that frames the climate / shifter area; the 2019 Pacifica centre stack is retained mainly by spring clips rather than visible bolts. With the lower trim out of the way, undo any small screws hidden behind it and walk a pry tool around the upper radio bezel to release each remaining clip. Pull the bezel forward, unplug any small switch / HVAC connectors on the back, and set it aside. With the bezel removed, undo the retaining screws at the corners of the radio chassis. Slide the head unit out and unplug the wiring harnesses and antenna lead.
Where the serial label sits
The serial is on a printed label on the metal housing - typically the top or one side of the chassis. Read the long alphanumeric string next to the barcode and double-check ambiguous characters (O vs 0, I vs 1). Photograph the label as a permanent reference before refitting the unit.
Tips
Reinstallation is the reverse of removal: harnesses back on, screws home, bezel pressed in until each clip seats, then reconnect the battery.
Example: Chrysler Pacifica serial number label location
Typical Serial Number Formats for 2019 Pacifica Radios
Year Chrysler Pacifica RA3 radio serial patterns:
T00AM– Harman VP2 RA3 (primary format on Pacifica)T00BE– Continental-manufactured variantTM9– Older Harman build
Serial is 14 alphanumeric characters. Skip the part number (starts with P05064 or 68).
Standard Serial Number Patterns on This Radio
The 2019 Pacifica could leave the factory with several different head units, each made by a different supplier, so the serial-number style depends on which radio is in your van. The patterns below are the ones most often reported for this generation, but the exact prefix on your specific unit can vary.
Continental / Harman-supplied Uconnect 4 and 4C (UCQ / UAQ)
Frequently shown with a T0 prefix and an alphanumeric tail, for example something resembling T0xxx... The prefix sits inline with the rest of the serial on the chassis label.
Panasonic-supplied Uconnect units
Often start with TM9 followed by additional digits or letters. This format has been widely associated with Panasonic-supplied Mopar radios of the Uconnect 4 era, and community reports note Panasonic hardware appearing more frequently on later Pacifica builds.
Uconnect 4 with 5-inch display (UAG)
Also carries a printed serial on its chassis label; however, the prefix can vary by supplier batch, so the safest approach is to copy the full string from the label rather than assume a fixed format.
If the alphanumeric you read does not match any of these examples, recheck that you copied the serial line and not the part number. The serial is normally the longest string on the label and is the one tied to the barcode.
How to Unlock a Chrysler Pacifica Radio After Power Loss
- Instead of contacting Chrysler dealer or searching forums you can find the code online using the radio S/N.
- First locate the serial number. The best place to search is on the unit itself, and in some cases you can see it on the Pacifica's radio screen.
- Type it into the field above, and the system will generate the correct 2019 Pacifica unlock code.
- After receiving your code, type it in using Pacifica's radio controls to release the blockade fully.
- The entire process takes just a short moment and requires no VIN, documents, or technical knowledge.
Unlocking the Radio After Code Generation
Now that you've found the S/N and retrieved the unlock code, the last step is entering it into your radio.
Chrysler original head units display a ENTER CODE message when ready for input.
The process is usually simple, but button layouts and confirmation methods may vary depending on the radio version installed in your Pacifica.
Step-by-Step Code Input Guide
To unlock on the 2019 Chrysler Pacifica Uconnect 8.4":
- Turn ignition to ON. The screen displays "ENTER CODE".
- Tap each digit of your 4-digit code.
- Radio auto-confirms after the 4th digit. No confirm button needed.
3 wrong attempts trigger a 60-minute lockout. Keep ignition ON for the full wait. Turning off the ignition restarts the timer.
Entering Process Explained
Once you have the correct anti-theft code for your 2019 Pacifica radio, the entry itself is fast - but the radio will lock you out for half an hour if you keep entering wrong codes, so verify before you start.
Limited Attempt Warning
You only get three attempts. Three wrong codes in a row place the radio in a WAIT state and the screen reads WAIT. To clear it, the radio must remain powered with the ignition in RUN for a continuous 30 minutes (the vehicle may be driven during this time). Switching the key off does not shortcut the timer.
Entering the code
Turn the ignition to RUN or ACC so the radio boots and shows the CODE / Anti-Theft prompt. On the 8.4-inch Uconnect (UCQ/UAQ), tap each digit on the touchscreen number pad. On the 5-inch Uconnect 4 (UAG) base radio, enter the digits using the on-screen keypad. Confirm with the OK/Enter on-screen control or the equivalent hardware button. When the code is accepted, the radio returns to the normal home screen and audio resumes.
If it does not unlock
Stop after the second wrong attempt and recheck the serial you used to obtain the code. Make sure no leading letters or trailing digits were dropped. If WAIT appears, leave the radio powered for the full 30 minutes before trying again.
What Caused the Radio to Lock?
The 2019 Chrysler Pacifica radio locks automatically after power is cut. Pacifica owners often experience this during battery replacement or after electrical repairs.
Most common cause: battery replacement or disconnect. Other causes:
- Blown fuse after electrical work
- Buying the Pacifica pre-owned without a known code
- Battery disconnect for service
- Battery drained from not driving
The code is based on the radio serial number only — not the VIN.
Troubleshooting Common Radio Problems - Pacifica 2019
3 wrong entries lock the Pacifica RA3 for 60 minutes. Keep ignition in ON or ACC. Cutting power restarts the timer.
The Pacifica Uconnect RA3 uses touchscreen-only code entry. Press each digit on the on-screen keypad. No physical buttons needed. Auto-unlocks after the 4th digit.
The Pacifica RA3 label carries both serial and part number. Serial: 14 chars, starts with T00AM, T00BE, or TM9. Part number (do not use): starts with P05064 or 68.
Double-check the label. Contact support for a free re-check if needed.
If no code prompt appears, anti-theft is inactive. Trigger the prompt by briefly pulling the radio fuse, then reconnect and turn to ON.
The radio chassis label: serial = 14 chars starting with T00AM, T00BE, or TM9. Part number starts with P05064 or 68 — not the serial.