Is it safe to drive with a P0563 code?

Severity is high. Address P0563 sooner rather than later — driving with an active check engine light can worsen the problem or void emissions warranties.

How much does it cost to fix P0563?

Repair costs for P0563 typically range from $100 to $600 in the US, depending on the underlying cause. The most common fix is: Failed alternator voltage regulator.

What are the symptoms of P0563?

CEL. Burned-out bulbs frequently. Boiling battery. Module damage.

Check Engine Code

P0563

System Voltage High

Severity: high DIY difficulty: 2/5 Typical cost: $100–$600

Last updated April 30, 2026

What P0563 means

Voltage exceeds the safe upper limit (~15.5V+). Usually a failed voltage regulator inside the alternator.

Symptoms

CEL
Burned-out bulbs frequently
Boiling battery
Module damage

Likely causes (most common first)

Failed alternator voltage regulator
Bad ground causing voltage spike
Failed PCM control of alternator

Can I keep driving?

High — risk of damage if ignored

Typical repair cost

DIY fixes can start near $100 (parts only). Shop repairs for P0563 typically run up to $600 depending on the underlying cause and vehicle. Start with the most common cause — Failed alternator voltage regulator — before throwing parts at it.

Symptoms that match P0563

If you got here from a search query, one of these might describe what your car is actually doing:

Battery Warning Light On — It Means the Charging System, Not the Battery

Recommended parts & tools for P0563

Compare the parts and tools that pair with AXLY:

Best Car Battery Terminal Cleaners & Protectors for 2024 →Best Portable Jump Starters for a Dead Car Battery →Best Car Battery Chargers & Maintainers →Best Multimeters for Car Electrical Diagnosis → Browse all car gear →

As an Amazon Associate, AXLY earns from qualifying purchases.

Related codes

P0562

Confirm P0563 yourself in 60 seconds

Two cheap things and you can read P0563 yourself — plus every other stored code and live engine data, free. No subscription.

1. Download AXLY Free 2. Veepeak OBDCheck BLE+ — ~$30