If you've suddenly noticed your 2016 Jeep Cherokee odometer flashing while you're cruising down the road, your first instinct is probably to panic a little bit. Is the engine about to explode? Is the transmission giving up the ghost? Fortunately, it's usually nothing that dramatic, though it is definitely annoying. In the world of Mopar and Jeep, a flashing odometer is basically the car's way of saying, "Hey, I'm having a communication breakdown."
It isn't like a check engine light that tells you a sensor is bad. Instead, it's an indicator that one of the many computers in your Jeep isn't "talking" to the others correctly. This is almost always related to something called a Proxi Alignment issue. Let's break down why this happens and what you can actually do about it without losing your mind.
What exactly is a Proxi Alignment?
To understand why your mileage is blinking at you, you have to realize that your 2016 Jeep Cherokee is basically a rolling laptop. It has dozens of modules—the Body Control Module (BCM), the Powertrain Control Module (PCM), the radio, the instrument cluster, and even the door modules—all connected via a network called the CAN bus.
Think of a Proxi Alignment like a digital roll call. When you start the car, the BCM (the boss computer) sends out a signal to see if everyone is present and accounted for. If a module doesn't respond, or if a new module shows up that wasn't invited to the party, the BCM gets confused. Since it doesn't have a specific "communication error" light on the dash, it defaults to making the odometer flash. It's a subtle—well, maybe not that subtle—way of telling you the vehicle's configuration doesn't match what's stored in its memory.
Common reasons for the flashing
So, why did this start happening out of the blue? Usually, there's a trigger. If you haven't touched anything and it just started, it's a bit more mysterious, but usually, it follows one of these scenarios:
1. You recently replaced the battery
Jeeps are notoriously sensitive to voltage. If your battery started to die or you swapped it out for a new one, the sudden loss or surge of power can sometimes trip up the modules. One module might wake up slower than the others during that first start-up, missing the "roll call," and suddenly you've got a flashing odometer.
2. Aftermarket radio installation
This is probably the biggest culprit for the 2016 Jeep Cherokee odometer flashing. If you pulled out the factory Uconnect system to put in a shiny new Apple CarPlay or Android Auto head unit, you've essentially removed a major node from the network. The BCM is still looking for that factory radio, can't find it, and starts blinking the mileage to let you know something is missing.
3. A module is failing
Sometimes, a component just stops working. Maybe it's the hands-free Bluetooth module (which is a common fail point in these years) or a blind-spot sensor. If that part goes "dark," the rest of the car notices its absence and triggers the flash.
4. Loose wiring or blown fuses
It sounds simple, but a blown fuse to a specific module can cause this. If the module isn't getting power, it can't check in with the BCM.
Can I still drive my Jeep?
The short answer is: Yes, it's perfectly safe to drive.
A flashing odometer doesn't affect the mechanical side of things. Your engine isn't going to stall, and your brakes aren't going to fail because of it. It's purely an electronic communication error. That said, it's incredibly distracting, especially when you're driving at night. Plus, if the error is caused by a failing module (like your airbag module or ABS module), those specific systems might not work correctly. So, while you can get to work and back, you definitely shouldn't ignore it forever.
How to fix the flashing odometer
If you want to get rid of that blinking light, you have a few options depending on how much you want to spend and how tech-savvy you are.
The "Wait and See" Method
Sometimes, if the flash was caused by a temporary low-voltage situation (like a cold morning start with an old battery), it might actually fix itself after a few drive cycles. This isn't super common, but I've seen it happen. Give it a day or two before you go spending money.
The Battery Reset
It's the oldest trick in the book. Pop the hood, disconnect the negative battery terminal, and let the car sit for about 30 minutes. This forces all the capacitors in the modules to drain and effectively "reboots" the whole car. When you hook it back up, the modules will perform a fresh handshake. It's a long shot for a Proxi issue, but it's free, so why not try?
The Dealership Route
This is the most straightforward fix but also the most expensive. You take it to a Jeep dealership, and they connect it to their WiTech diagnostic system. They'll run a Proxi Alignment procedure, which basically tells the BCM to re-scan the whole car and save the current configuration as the new "normal." It usually takes about 30 minutes, but most dealers will charge you a full hour of labor—so expect to pay anywhere from $100 to $200.
The DIY Way (AlfaOBD)
If you're a bit of a tinkerer, you can actually do this yourself for much cheaper. There's a piece of software called AlfaOBD (available for Android and PC). You'll need a compatible Bluetooth OBD2 scanner (like the OBDLink MX+) and possibly a "blue" bypass cable if your Jeep has a secure gateway (though 2016s usually don't need the bypass—that started more in 2018).
With AlfaOBD, you can go into the settings and trigger a Proxi Alignment yourself. It's the same thing the dealer does. Once you run the procedure and clear the codes, the odometer should stop flashing immediately.
Dealing with aftermarket electronics
If your odometer is flashing because you installed a new radio, a simple alignment might not fix it if the BCM is still looking for a component that isn't there. In some cases, you have to use software to "tell" the car that the factory radio is gone.
If you used a high-quality wiring interface (like an iDatalink Maestro) when you installed your radio, these units are usually designed to "mimic" the factory radio on the CAN bus so the odometer doesn't flash. If you just spliced some wires and bypassed the interface, you're almost guaranteed to have the blinking mileage issue.
Wrapping it up
Seeing your 2016 Jeep Cherokee odometer flashing is definitely one of those "Oh great, what now?" moments. It feels like the car is glitching out, but in reality, it's just the computer being a bit of a perfectionist about its "roll call."
If you just changed your battery, try a reset. If you changed your radio, check your interface module. And if it just happened out of nowhere, you'll likely need to find someone (either a dealer or a friend with AlfaOBD) to run a Proxi Alignment. It's a quirk of modern Italian-American car engineering, but once you get those modules synced up again, you'll be back to a solid, non-blinking display.
At the end of the day, don't let it ruin your week. It's a fixable annoyance, not a mechanical death sentence. Just keep an eye on it, and maybe use it as an excuse to finally buy that OBD2 scanner you've been eyeing!