OBD codes / P0562 / Jeep Grand Cherokee
P0562 on a Jeep Grand Cherokee
System Voltage Low
3.6L Pentastar V6 and 5.7L HEMI V8, WK2 (2011–2021) and later
What P0562 usually means on a Grand Cherokee
P0562 means the PCM saw system voltage below the normal range. On the Grand Cherokee the usual causes are a tired battery, a failing alternator, or corroded grounds and terminals. These trucks are also known for TIPM (Totally Integrated Power Module) quirks, so a flaky power module can occasionally contribute to odd electrical complaints, but that is not where you start. Low voltage can cascade into a batch of unrelated warnings, so fixing the charging system often clears several symptoms at once.
Most likely causes on this model
- Weak or aging battery
A battery that no longer holds voltage under load is the most common and cheapest cause to rule out.
- Failing alternator
An alternator that cannot maintain charging voltage drags system voltage low, especially under electrical load.
- Corroded grounds or battery terminals
Poor connections raise resistance and drop voltage where the PCM measures it.
- TIPM-related fault
Stated carefully: these Chryslers have documented power-module quirks, but it is a later suspect, not a first one.
What it costs on a Grand Cherokee
Start with a charging-system test, which most shops do cheaply or free; a battery or alternator is a straightforward few-hundred-dollar repair. Grounds and terminals cost little more than cleaning time. A TIPM, if it truly is the cause, is the expensive outlier and should only be considered after the basics test good.
Grand Cherokee owners also ask
Is P0562 on my Grand Cherokee the dreaded TIPM?
Usually not. The vast majority of low-voltage codes are a weak battery, a failing alternator, or a bad ground. Test the charging system first and only look at the TIPM once those come back good.
Can a low battery cause other warning lights along with P0562?
Yes. When system voltage drops, modules can misbehave and throw a cluster of unrelated warnings. Restoring proper charging voltage often clears several of those symptoms at once.
Year, engine and mileage change the answer. Get a diagnosis for your Grand Cherokee — it weighs these causes against your exact configuration and real complaint data.
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Based on widely reported patterns for this model; individual causes vary by year, engine and history. Generic P0562 behavior is covered on the main P0562 page. Confirm with a scan tool before buying parts.