Find Jeep Grand Cherokee 2020 Radio Code In Seconds

2020 Grand Cherokee - Which Radio Did You Get?

The 2020 Grand Cherokee carries over the WK2 Uconnect 4C platform unchanged from 2019. There are two factory head units to identify across the trim ladder, both with Apple CarPlay and Android Auto.

1. Uconnect 4 (UAG) - 7-inch non-NAV touchscreen, standard on the 2020 Laredo. Visual ID: smaller 7-inch screen centred in the dash opening with bezel filling the surround; CarPlay and Android Auto are supported, but there is no built-in NAV app and no Map tile on the home screen. The entry-level radio for 2020 by volume.
2. Uconnect 4C NAV (UAV) - 8.4-inch touchscreen with built-in GPS, standard on Limited, Trailhawk, Overland, Summit, SRT and Trackhawk; optional on Laredo. Visual ID: large 8.4-inch screen filling the dash bezel edge to edge, with a dedicated NAV/Map tile on the home screen and 3D map imagery; on SRT/Trackhawk the home screen also unlocks Performance Pages. The UAV uses a disassociated screen module - the 8.4-inch display sits in a separate housing from the radio receiver behind the dash, which is the main hardware change versus the older UAQ.

1. Quick test: 7-inch screen with no Map tile = UAG.
2. 8.4-inch screen with a Map tile = UAV.

Using Hidden Radio Menus to Find the Serial

The 2020 Grand Cherokee continues with the WK2 Uconnect 4 line-up - 7-inch UAG and 8.4-inch UAV NAV - and the radio serial number can normally be read on screen via a hidden dealer/diagnostic menu. Some 2020 builds had dealer-mode access tightened by Uconnect software updates, so a fallback path is useful.

Uconnect 4C 8.4 (UAV NAV)

1. Switch the ignition to RUN/ACC and wait for the Uconnect interface to finish booting.
2. Press and hold the driver-side temperature UP, the driver-side temperature DOWN, and the front DEFROST buttons together for roughly 7 seconds until the dealer/engineering screen opens.
3. 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.
4. Browse to the radio/system info section to view the serial number on screen.
5. Photograph the screen before transcribing the characters.

Uconnect 4 7-inch (UAG)

1. Place the ignition in RUN/ACC and let the screen finish loading.
2. Press and hold both temperature UP and temperature DOWN buttons together for around 7 seconds to open the engineering menu.
3. Open System Info / Target Main Data and read the serial number on screen.
4. Take a photo of the display so the digits can be copied accurately. If the engineering menu refuses to appear on the 7-inch UAG, fall back to the chassis-label method.

Manufacturer Label Inspection

If dealer mode has been disabled on a 2020 Grand Cherokee by a Uconnect software update - or if the 7-inch UAG will not enter the engineering menu - the printed chassis label remains the next reliable source for the serial. The Uconnect 4 head unit on the WK2 sits in a centre stack that is closely integrated with the climate cluster, so work slowly and methodically.

1. 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.
2. Tools you will need: plastic trim removal kit, Phillips and small Torx bit set, 7mm/10mm socket set, flashlight.
3. Open the dash storage door if fitted, then pry the receiver/centre stack bezel free with a plastic trim tool, starting at the lower edge and working up the sides; on the WK2 this bezel typically releases through around fourteen retaining clips.
4. Unplug the hazard switch and any HVAC/control connectors at the rear of the bezel, then lay the trim aside on a clean cloth.
5. Remove the screws (typically four 7mm screws, two upper and two lower) holding the radio cage to the dash support bracket.
6. Slide the radio rearward and disconnect the antenna lead and the multi-pin power/data harness on the back. On UAV-equipped cars the 8.4-inch display is a separate module from the receiver, so the receiver is what carries the serial-number label.
7. The serial number sits on a printed barcode/sticker label on the top or side of the radio chassis, next to the part number and supplier markings.
8. Photograph the label and double-check ambiguous characters such as 0/O, 1/I and B/8 before submitting the serial. There is often a module behind the factory radio that restricts cavity depth, so do not pull harder if the unit resists - check for hidden brackets first. If you are not comfortable working around airbag wiring or the integrated climate cluster, have a professional installer remove the unit for you.

Common S/N Formats Used on 2020 Grand Cherokee Units

The factory radios fitted to the 2020 Grand Cherokee use the standard Mopar/Uconnect serial style. The exact prefix depends on which Uconnect tier shipped with the car and which supplier (Continental, Harman or Panasonic) built the unit - the 2018+ 4C UAS/UAQ/UAV head units are commonly Panasonic-built.

Uconnect 4C 8.4 (UAV NAV)

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

Uconnect 4 7-inch (UAG)

1. 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.
2. Copy the serial exactly as printed and avoid guessing characters that look unclear.