The Lemon IndexThe electrically heated thermostat circuit is open.
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
Failed thermostat heater. Then: wiring fault.
Owners named P0597 in 10 complaints to the U.S. government, most often on the Chevrolet Volt.
Cars owners report it on
Complaints that name P0597, by model. Raw counts, not a failure rate: popular models get more complaints.
Years owners report it on most: 2017 Chevrolet Volt
The details
What P0597 means
The electrically heated thermostat circuit is open.
Can I drive with P0597?
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
30% of the owner complaints that name P0597 also say the car warning lights and electrical faults. A complaint can describe more than one problem, so this doesn't prove the code caused it.
Common causes of P0597
- Failed thermostat heater
- Wiring fault
A shop should confirm the cause with a scan and tests before replacing parts.
What owners describe
- Warning lights and electrical faults: 30% of complaints
- Loses power or goes into limp mode: 20% of complaints
- Stalls or shuts off: 20% of complaints
Share of complaints naming the code whose text also mentions each problem.
Model years that report P0597 most
2017 Chevrolet Volt (2).
Related codes
P0598 P059F P0571 P0562 P0556 P052E P0524 P0523
Quick answers
What does P0597 mean?
Thermostat Heater Control Circuit/Open. The electrically heated thermostat circuit is open.
Can I drive with P0597?
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
What causes P0597?
Failed thermostat heater; Wiring fault.
Counts: NHTSA owner complaints whose text names P0597. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.