Where to Find the Serial Number on your Grand Cherokee
The first step is to locate the radio's serial num.
Based on the head unit type fitted in your 2011 Grand Cherokee, the serial can be accessed either through the screen menu or by pulling the unit out and checking the label on the radio itself.
Follow the steps below to identify your serial the right way.
Factory Radios on the 2011 Jeep Grand Cherokee
The 2011 model year launched the all-new WK2-platform Grand Cherokee and rolled out the MyGIG-era radio lineup that Mopar shared across Chrysler, Dodge, and Jeep. Identifying which head unit is in your dash determines where the serial number is printed and how the security-code prompt is presented.
- Base AM/FM/CD (sales code RES) - Entry-level Media Center 130 single-CD receiver fitted to lower-trim Grand Cherokees. Small non-touchscreen monochrome display with hard buttons, CD slot, MP3/WMA support, and no Bluetooth or navigation. This was the highest-volume factory radio on the 2011 Laredo trim.
- MyGIG Media Center 430 (sales code RBZ) - Optional MyGIG touchscreen with a 6.5-inch color display, internal hard drive, USB, SiriusXM, and Bluetooth (where equipped). Has no Nav tile on the home screen and no Garmin splash at boot. Common upgrade on Limited trims for 2011.
- MyGIG Navigation 430N with Garmin (sales code RHB) - Same 6.5-inch MyGIG hardware as the RBZ but adds Garmin-based GPS navigation. The giveaway is the Garmin logo at boot and a Nav button on the home screen. Available factory option on 2011 Grand Cherokees.
- MyGIG Navigation 730N with NAVTEQ (sales code RHR / RB5) - Top-tier MyGIG nav radio with NAVTEQ maps and Harman Becker GUI, fitted to Overland and other higher-spec packages. Same 6.5-inch screen as the RHB but uses different navigation software (NAVTEQ instead of Garmin) and adds SiriusXM Traffic and Travel Link.
Quickest visual check: small non-touch display with a CD slot = RES; 6.5-inch touchscreen without a Nav icon = RBZ; 6.5-inch touchscreen with a Garmin boot splash = RHB; 6.5-inch touchscreen with a NAVTEQ-style map UI = RHR.
Screen-Based Serial Lookup Method
The method for 2011 Jeep Grand Cherokee is this:
The 2011 Jeep Grand Cherokee (WK2) of this era was equipped with a MyGIG or early Uconnect head unit. The WK2's prominent center stack positions the head unit high and centrally, but these radios have no on-screen serial display.
The serial number is on a manufacturer label on the side, top, or rear of the radio chassis — readable only after pulling out the unit from the Grand Cherokee's dash opening.
Releasing the Radio to See the S/N on the Tag
If the serial number cannot be accessed on-screen, use the pull-out method.
Most Jeep Grand Cherokee original radios include a sticker with the serial number printed on the chassis.
Step-by-Step:
- Switch off the vehicle.
- Detach the dashboard frame surrounding the radio.
- Release the fasteners.
- Move the unit slightly out to access the label.
The serial number is usually located near the manufacturer sticker.
To extract the radio from the 2011 Grand Cherokee (WK2):
- Switch off the vehicle completely.
- Remove the large dashboard bezel around the radio and HVAC controls. The WK2's wide center stack trim has plastic retaining clips – start at the top or bottom edge and pry along the perimeter.
- Remove the four Phillips mounting screws holding the radio to the bracket.
- Ease the radio forward. The Grand Cherokee has decent clearance for removal.
WK2 Note: Certain Grand Cherokee trims have a larger climate control cluster below the radio — both come off together as one panel on most trims.
View Serial by Pulling Out the Radio Unit
On the 2011 Jeep Grand Cherokee (WK2 platform), the most reliable way to read the radio serial number is to release the head unit from the center stack and inspect the manufacturer label printed on the chassis. Whether the car is equipped with the base RES single-CD receiver or one of the MyGIG units (RBZ, RHB, or RHR/RB5), the procedure is essentially the same.
- Safety first. Turn the ignition fully off and remove the key. Disconnect the negative battery terminal and wait several minutes before working in the dash so any SRS / airbag capacitors can discharge. Avoid yellow airbag wiring and release every connector by its lock tab rather than tugging on the wires.
- Tools to have ready. A set of plastic pry/trim tools (or a small flat-blade screwdriver wrapped in painter's tape to protect the soft-touch finish), a 7mm socket with ratchet and short extension, a #2 Phillips screwdriver, and a small parts tray for the four chassis screws.
- Pop the receiver trim panel. The radio bezel on the WK2 Grand Cherokee is held by perimeter spring clips. Start at the bottom edge with a panel tool and work outward, freeing the metal retaining clips along the entire perimeter. There are several clips around the bezel, so move in small steps rather than levering hard at one point. Recover any clips that stay behind in the dash holes and re-seat them on the bezel.
- Disconnect bezel-mounted controls. Tilt the loose bezel toward you and unplug any harnesses attached to it (typically hazard switch / climate or display connectors), then set the bezel aside on a soft surface so the painted face is not scuffed.
- Remove the four 7mm chassis screws. The radio is secured to the dash sub-frame by four 7mm hex-head screws, typically one near each corner of the mounting cage. Remove all four and keep them together so they are not mixed with bezel hardware.
- Slide the unit out and disconnect. Pull the radio straight forward out of its opening, then release the locking antenna connector and unplug the multi-pin electrical harness(es) at the back of the unit.
- Read and record the S/N. The 14-character serial number is printed on a white or silver manufacturer label on the chassis (top, side, or rear depending on the unit), alongside a Chrysler/Mopar part number and a barcode. Photograph the label with your phone for a clear, zoomable copy and transcribe the value carefully - capitalisation matters and the digit zero is easy to confuse with the letter O.
- Reinstallation tips. Reconnect harnesses before sliding the unit back in; route the antenna cable so it does not get pinched; tighten the four 7mm screws snug but not over-torqued; align the bezel and press around its perimeter until you feel each clip seat.
Tips: for stubborn clips, work the trim tool in small increments rather than levering hard at one spot; warm cabin temperatures make the plastic more forgiving than a cold morning in the garage; and label the harness connectors if you plan to leave the radio out for any length of time.
Example: Jeep Grand Cherokee serial number label location
Standard Serial Number Patterns on This Radio
Typical radio models in the 2011 Grand Cherokee WK2:
- MyGIG RER 730N (navigation touchscreen) – Serial prefix:
TM9 - MyGIG REP 430N (nav non-touch, if equipped) – Serial prefix:
TM9 - Uconnect 4.3" (standard non-nav) – Serial prefix:
T00AM
All serials are 14 characters, alphanumeric. The part number starts with P05064... or 68... — only the serial generates the unlock code.
Typical Serial Number Formats for 2011 Grand Cherokee Radios
Serial numbers on the 2011 Grand Cherokee's factory radios are typically 14 characters long and commonly begin with the letter T, printed on the chassis label together with a Chrysler/Mopar part number and a barcode. The exact prefix usually depends on which sales-code radio is installed.
RES (Base AM/FM/CD)
- Typically a 14-character alphanumeric string commonly beginning with
T, followed by a family identifier and a production sequence printed on the chassis label. Treat any leading whitespace, dashes, or anS/Nprefix on the label as formatting only - they are not part of the serial value you submit.
RBZ / RHB (MyGIG 430 and 430N)
- Commonly begins with
T00-style prefixes such asT00AMorT00BE, followed by digits to make up the full 14-character string. These are the most common factory MyGIG units you will see in 2011 Grand Cherokees and are typically Mitsubishi-built.
RHR / RB5 (MyGIG 730N with NAVTEQ Nav)
- Commonly begins with
TM9followed by a numeric sequence to fill the 14-character format. These are the higher-trim navigation variants and are typically found on Overland, Limited 4x4 packages, and SRT-equipped cars.
Always verify the printed value against the chassis label - prefixes can vary between production runs and supplier batches, and an entry that is one character off will be rejected by the radio.
Radio Code Input Guide
After receiving 2011 Jeep Grand Cherokee unlock code from the serial, you're ready to reactivate the radio.
Some drivers hesitate at this stage because input methods can look different across radio versions, but it's usually easy.
When the radio shows dashed lines, it means the unit is waiting for the correct numbers.
Detailed Entering Instructions for Grand Cherokee 2011
To input the code on the 2011 Grand Cherokee's radio:
- Turn ignition to ON. The screen shows "CODE" or "ENTER CODE".
- Touchscreen models (MyGIG 730N): Tap the touchscreen to enter each digit.
- Non-touchscreen (4.3" base): Press preset button 1 multiple times for the first digit, button 2 for the second, etc. Hold Enter/OK to confirm.
Warning: 3 incorrect entries trigger a lockout. Keep the radio running for approximately 60 minutes to reset.
Entering Process
Once you have the correct 4-digit anti-theft code for your 2011 Grand Cherokee's radio, entering it is straightforward, but you only get a limited number of attempts before the unit forces a cooldown.
- Limited Attempt Warning (read first). Mopar MyGIG units (and the base RES receiver) typically allow up to three attempts to enter a valid code. After three successive invalid entries the radio drops into a WAIT (LOCK) state and the display will read
WAIT. To clear it, leave the ignition in the RUN position with the radio powered for a continuous 30 minutes (the vehicle may be driven during this time). After exiting the WAIT state the display returns toCODEand a valid code can be entered. Do not power-cycle the radio during the cooldown - it generally resets the timer. - Power up. Turn the ignition to RUN (or ACC if your trim supports it) and wait for the radio to finish booting and show the
CODE/ENTER CODEprompt. - Entry on a MyGIG (RBZ / RHB / RHR / RB5) touchscreen. Use the on-screen numeric keypad to tap each of the four digits of your code in sequence. Once the fourth digit is shown, an
OK/GObutton becomes active on screen. Tap it to submit; a correct code clears the prompt and the radio returns to normal operation. - Entry on the base RES (single-CD) radio. With the ignition in RUN and the display showing
CODE, use the station preset buttons (1-4) to dial each of the four digits, then press the labelled enter/OK button to submit (or briefly hold the assigned preset, depending on the unit's labelling). The display returns to play mode when the code is accepted. - If the code is rejected. Stop after the second failed attempt, double-check the code against your paperwork, and start a fresh entry from the first digit on the next attempt. It is much cheaper to take the 30-minute wait than to risk further escalation.
- Tip. Tap each digit deliberately - rapid double-taps on the MyGIG touchscreen can register an extra digit and inadvertently submit an incorrect entry.
Step-by-Step Jeep Grand Cherokee 2011 Radio Code Retrieval Guide
To get the code, you'll take only a few easy steps.
- Find the radio's serial - this is the only info required by our side.
Unlike when contacting the dealer, no VIN is needed. - When you've found the S/N, type it into the form above.
Our system checks it against a database of supported units and automatically finds the matching security code. - In most cases, the code appears instantly on the screen after you pay and is also sent to your email , just in case.
If we need to check it manually, you'll be informed before checkout. - When you receive it, simply enter it into your radio to restore the functionality.
Grand Cherokee 2011 Common Radio Problems
After 3 failed attempts on a MyGIG or early Uconnect Grand Cherokee radio trigger a ~60-minute lockout. The screen displays "WAIT" or goes quiet. To clear the lockout:
- Keep the ignition ON — engine doesn't need to run, but the key must stay in ON.
- Do not turning the ignition off — the clock restarts from zero.
- After the wait, the "CODE" display returns.
MyGIG and early Uconnect Grand Cherokee radios lack on-screen serial retrieval — physical removal is required. On the label, look for:
- Serial number — 14 alphanumeric characters, starting with
TM9orT00AM. This is what you need. - Part number — starts with
P05064or68. Do not use.
WK2 Grand Cherokees often go through multiple battery changes over their lifespan — keep the serial noted somewhere safe once you've accessed it saves a repeat trip.
If the Grand Cherokee's radio does not show a code prompt after a battery event:
- Check the ignition is in the ON position and wait 15–20 seconds for the radio to boot.
- Check the fuse panel — fuse failure prevents the radio from powering on.
- The WK2's tall center stack may have a slightly unseated radio connector — reseat the harness if nothing displays.
How you enter the code on the Grand Cherokee WK2 varies by which radio it has:
- Touchscreen (MyGIG 730N) — Use the on-screen keypad.
- Non-touchscreen (4.3"/base) — Press preset buttons 1–4 to cycle each digit, then hold Enter/OK.
If unsure: a glass display you can touch means touchscreen entry; a button-only face means preset button entry.
Code failure on a MyGIG or early Uconnect Grand Cherokee radio almost always means the wrong serial number was submitted. The label on the radio carries both the serial (14 characters, prefix TM9 or T00AM) and the part number (P05064... or 68...). Only the serial produces the unlock code.
Should the code fail, verify the serial carefully on the physical sticker and reach out for a free re-check.
Why Is the Radio Asking for a Code?
WK2 Grand Cherokees frequently experience radio lockouts because of:
- Battery disconnect or replacement — the primary trigger on these older radios. Any power interruption activates the anti-theft.
- Electrical service work — the WK2 has many electronic features and service requiring a battery disconnect locks the radio.
- Aging battery failure — batteries in vehicles of this age fail without warning, which arms the anti-theft.
- Used purchase — Grand Cherokees are popular used vehicles, and the code is often not passed on.
The unlock code is permanently tied to the radio serial and does not change.