Finding the Radio S/N for Jeep
The starting step is locating the radio serial.
Most people assume the code depends on the Jeep model or year, but in reality, the unlock process relies on the unique radio's serial number.
Each radio has its own serial tied to the security system.
This is even better, because if you have a used radio, the VIN or other Jeep-specific data wouldn't help.
Depending on the radio version used, you may be able to retrieve the serial directly from the display or by checking the label on the radio chassis.
Radios Offered in the 2020 Compass
The 2020 Compass carries the Uconnect 4 family forward unchanged from 2019. There are three factory head units on the trim ladder, separated by screen size and built-in navigation, plus a 5-inch Uconnect 3 base unit that continues on the entry trim.
- Uconnect 4 (
UAG) - 7-inch non-NAV touchscreen. Standard on Latitude, Latitude Plus, Altitude and Sun & Wheel pack. Visual ID: 7-inch display centred in the dash with bezel material around it; Apple CarPlay and Android Auto are supported, but there is no factory NAV app and no Map tile on the home screen. By volume the most common radio on 2020 Compasses. - Uconnect 4C (
UAS) - 8.4-inch non-NAV touchscreen. Standard on Trailhawk, optional on Latitude Plus and Limited. Visual ID: large 8.4-inch screen filling the dash opening edge to edge, CarPlay and Android Auto present, but no Map/NAV tile because navigation is not built in. - Uconnect 4C NAV (
UAQ) - 8.4-inch touchscreen with built-in GPS. Standard on Limited and High Altitude, common option on Trailhawk. Visual ID: same 8.4-inch bezel and glass as UAS, but the home screen carries a dedicated NAV/Map tile and on-board maps are bundled.
Quick test for the touchscreens: 7-inch screen = UAG, 8.4-inch without a Map tile = UAS, 8.4-inch with a Map tile = UAQ. The 5-inch Uconnect 3 on Sport is a separate, simpler unit and not part of this family.
Screen-Based Serial Lookup Method
These are the steps you need to follow for 2020 Jeep Compass:
The 2020 Jeep Compass (MP platform, redesigned) features the Uconnect 7.0" touchscreen (RA2.1). The redesigned MP Compass has a more modern dashboard compared to the older MK49 platform, with the 7" screen mounted in a streamlined center stack. Access the serial via Dealer Mode:
- Turn ignition to ACC or ON.
- Hold down the Temperature Up and Temperature Down buttons simultaneously for approximately 5 seconds.
- The Engineering Menu shows on the 7" screen.
- Navigate to: System Info → Target Main Data → Serial Number.
Note: On the 7" Uconnect, navigate to "Target Main Data" rather than "Radio Part Info" — that is the correct path.
Quick Method: Find the Serial Number on the Screen
The 2020 Compass continues with the Uconnect 4 family - 8.4-inch UAQ NAV, 8.4-inch UAS non-NAV and the smaller 7-inch UAG. On these units the head-unit serial number can normally be read on screen via the hidden dealer/diagnostic menu, although some 2020 builds had dealer mode tightened by a software update.
Uconnect 4C 8.4 (UAQ / UAS)
- Switch the ignition to RUN/ACC and wait for the Uconnect interface to finish booting.
- Press and hold the driver-side temperature UP, the driver-side temperature DOWN, and the front DEFROST buttons together for roughly 5-10 seconds.
- If the climate-button shortcut does nothing on a software-updated unit, press and hold the bottom-left and bottom-right corners of the screen at the same time for about 5-10 seconds.
- Browse to the radio/system info section to view the serial number printed on screen.
- Photograph the screen before transcribing the characters.
Uconnect 4 7-inch (UAG)
- Place the ignition in RUN/ACC and let the screen finish loading.
- Press and hold the temperature UP and temperature DOWN buttons together for around 5-10 seconds to open the engineering menu.
- Open System Info / Target Main Data and read the serial number on screen.
- Take a photo of the display so each character can be copied accurately.
Check it by Pulling Out the Radio Unit
If the serial does not appear in menu, the next step is checking the radio itself.
Many Jeep radios require physical access to the serial tag attached to the unit.
Usual approach:
- Start by completely powering down the engine - pull the key out.
- Then lift the dashboard bezel.
- Next, loosen the mounting points and move the radio forward.
- Look for a factory sticker showing the serial number.
If Engineering Mode doesn't work on your 2020 Compass (MP), extract the radio to find the serial label:
- Power down the vehicle.
- Pry off the bezel panel around the 7" screen. The MP Compass's cleaner trim uses plastic friction clips – a pry tool, starting at the lower edge.
- Remove the 4 Phillips mounting bolts.
- Slide the unit out to read the serial label on the top or side of the chassis.
MP Compass Note: The redesigned Compass has a tighter center stack than the older MK49. Work carefully when removing the bezel to avoid breaking the narrow trim clips.
Serial Number on the Unit
If dealer mode has been disabled on a 2020 Compass by a Uconnect software update, the printed chassis label remains the next reliable source. The Uconnect 4 head unit on the MP Compass sits in a centre stack with the climate cluster below, so work slowly and methodically.
- Safety first: turn the ignition off, remove the key, disconnect the negative battery terminal, and wait a few minutes before touching wiring; never disturb the yellow airbag/SRS connectors and use plastic trim tools to avoid shorts and broken clips.
- Tools you will need: plastic trim removal kit, Phillips and small Torx bit set, 7mm/10mm socket set, flashlight.
- Pop the centre stack bezel free using a plastic pry tool, starting at the lower edge and working up the sides; on the MP Compass keep finger pressure even because the bezel sits next to the climate cluster.
- Unclip any switch/HVAC connectors at the rear of the bezel before setting the trim aside on a clean cloth.
- Remove the screws (typically four, two upper and two lower) holding the radio cage to the dash support bracket.
- Slide the radio rearward and disconnect the antenna lead and the multi-pin power/data harness.
- The serial number sits on the printed barcode/sticker label on the top or side of the radio chassis, next to the part number and supplier markings.
- Photograph the label and double-check ambiguous characters such as 0/O, 1/I and B/8 before submitting the serial. If you are not comfortable working around airbag wiring, have a professional installer remove the unit for you.
Example: Jeep Compass serial number label location
Common S/N Formats Used on 2020 Compass Units
The 2020 Compass (MP) with Uconnect 7.0" serial formats:
T00AM– Primary Harman prefixT00BE– Continental variantT0MYD– Updated Harman production (2020+)
Radio designation: RA2.1 (Uconnect 7.0"). Serial: 14 characters, alphanumeric. S/N pattern is identical across all Uconnect variants.
Serial Number Format Guide for 2020 Jeep Compass
The factory radios fitted to the 2020 Compass use the standard Mopar/Uconnect serial style. The exact prefix depends on which Uconnect tier shipped with the car and which supplier (Visteon, Continental, Harman or Panasonic) built the unit.
Uconnect 4C 8.4 (UAQ / UAS)
- Typically printed as a 14-character alphanumeric string on the chassis label.
- Commonly begins with
T- frequent prefixes includeT00AM,TM9andTQ1- or withA2Con Continental-built variants. - Usually a continuous run of letters and digits with no spaces or dashes.
Uconnect 4 7-inch (UAG)
- Usually carries a Mopar/Harman or Panasonic-style serial printed on the chassis sticker, so use the label on the unit itself as the reference.
- Copy the serial exactly as printed and avoid guessing characters that look unclear.
How to Enter the Radio Code
Now that you've generated 2020 Jeep Compass radio code from the serial number, you're ready to reactivate the radio.
Some drivers get stuck at this stage because input methods can look different across radio versions, but it's usually simple.
When the radio shows CODE, it means the unit is waiting for the correct numbers.
The Correct Way to Enter It
To enter the code on your 2020 Compass (MP)'s Uconnect 7.0":
- Ignition ON. Screen shows "ENTER CODE" or ----.
- Tap the touchscreen keypad to enter each digit of the 4-digit code.
- Radio unlocks automatically after entering the 4th digit.
Lockout: 3 wrong attempts = 60-minute lockout. Keep ignition ON. Turning off the ignition restarts the 60-minute wait.
Step-by-Step Code Input Guide
Once the unlock code has been retrieved for a 2020 Compass Uconnect head unit, it can be entered straight at the dash - no scan tool or dealer visit required.
- Limited attempts: Mopar/Uconnect head units only accept three incorrect tries before the radio enters a
WAITstate, so confirm every digit before pressing it. - Turn the ignition to RUN/ACC so the radio powers up while 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/UAS), key the four digits using the on-screen number pad and confirm with the OK/Enter touch button.
- On the Uconnect 4 7-inch (UAG), use the on-screen keypad - or the numbered preset buttons if the unit prompts for them - to enter the code in sequence.
- If
WAITappears after wrong attempts, leave the ignition in RUN with the radio powered for the documented cool-down period (about 30 minutes; the vehicle may be driven during this time) before trying the correct code again.
How Serial-Based Jeep Compass Radio Unlock Works
- Instead of contacting Jeep dealer or searching forums you can generate the code online with the radio serial number.
- Start by finding your radio's serial. The best place to search is on the unit itself, and sometimes it can be visible on the Compass's radio screen.
- Type it into the field above, and the system will calculate the correct 2020 Compass unlock code.
- After getting it, type it in using Compass's radio buttons to unlock the system fully.
- The entire process takes less than a minute for most users and requires minimal effort.
Why Is the Radio Asking for a Code?
The 2020 Compass (MP) encounters radio lockouts most commonly from:
- Battery disconnect or replacement — the most frequent reason on all Uconnect platforms.
- Dead battery from commuter use — compact crossovers with frequent short trips can see charge issues from short-trip driving, causing the anti-theft.
- Used purchase — common in the used car market, and the unlock code is frequently missing at resale.
- Blown fuse — a blown radio fuse cuts the radio supply and activates the anti-theft.
Your unlock code is permanently tied to the radio serial and never expires.
Fixing Common Code Entry Problems for 2020 Compass
The Compass MP's Uconnect 7.0" (RA2.1) uses touchscreen exclusively for code entry — no hardware buttons involved. Tap each digit on the 7" touchscreen. Radio unlocks after the last digit.
Note that the Engineering Menu (Temp Up + Temp Down hold) is for serial retrieval only — not for entering the code.
When a code is rejected on the Compass MP's Uconnect 7.0" typically indicates a serial number mismatch. The RA2.1 serial is 14 characters, prefixed by T00AM, T00BE, or T0MYD. The part number (P... or 68...) is also shown on the label but generates no code.
Dealer Mode is the most reliable way to confirm the serial on the Compass MP. Reach out for a free re-check if anything seems wrong.
The 7" Uconnect on the 2020 Compass (MP) supports on-screen serial retrieval via the Engineering Menu: hold Temperature Up + Temperature Down for 5 seconds, then go to System Info → Target Main Data → Serial Number.
- Serial — 14 characters, starting with
T00AM,T00BE, orT0MYD. Use this. - Part number — starts with
Por68. Do not use.
On this system, the menu path says "Target Main Data" rather than "Radio Part Info" — that is normal for this system.
Three wrong entries on the Compass MP's 7" Uconnect activate a 60-minute lockout. The screen shows "WAIT". To handle the lockout: keep the ignition ON for the entire 60 minutes. Cycling the ignition restarts the wait from zero.
If no code entry screen appears after a power event: confirm ignition is ON and allow a moment for the RA2.1 system to initialize. Inspect the radio fuse — fuse failure prevents the display from powering up.