The Lemon IndexThe heater in the upstream oxygen sensor has an electrical fault, so the sensor is slow to start working.
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
Failed O2 sensor. Then: blown fuse; wiring fault.
Owners named P0030 in 7 complaints to the U.S. government, most often on the Chevrolet Volt.
Cars owners report it on
Complaints that name P0030, 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 P0030 means
The heater in the upstream oxygen sensor has an electrical fault, so the sensor is slow to start working.
Can I drive with P0030?
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
43% of the owner complaints that name P0030 also say the car stalls or shuts off. A complaint can describe more than one problem, so this doesn't prove the code caused it.
Common causes of P0030
- Failed O2 sensor
- Blown fuse
- Wiring fault
A shop should confirm the cause with a scan and tests before replacing parts.
What owners describe
- Stalls or shuts off: 43% of complaints
Share of complaints naming the code whose text also mentions each problem.
Model years that report P0030 most
2017 Chevrolet Volt (2).
Related codes
P0031 P0037 P0024 P0022 P0021 P0019 P0018 P0017
Quick answers
What does P0030 mean?
HO2S Heater Control Circuit (Bank 1 Sensor 1). The heater in the upstream oxygen sensor has an electrical fault, so the sensor is slow to start working.
Can I drive with P0030?
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 P0030?
Failed O2 sensor; Blown fuse; Wiring fault.
Counts: NHTSA owner complaints whose text names P0030. 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.