P0135 on Your 2022 Santa Fe
Your 2022 Hyundai Santa Fe has set a P0135 diagnostic code, indicating a malfunction in the oxygen sensor heater circuit for Bank 1, Sensor 1. The 2022 Santa Fe offers the 2.5L four-cylinder (191 hp), 2.5L turbo (281 hp), or hybrid/PHEV powertrains. All feature inline engines with a single exhaust bank.
At 2-3 years old, your Santa Fe has excellent warranty coverage.
Symptoms
- Check engine light on
- Possibly nothing unusual
- Minor fuel economy reduction
Common Causes
O2 Sensor Heater Element Failure
Manufacturing variation or early wear.
Connector or Wiring Issue
Heat exposure affects connections.
Blown Fuse
Check the O2 heater fuse first.
Warranty Coverage
- Bumper-to-Bumper: 5 years/60,000 miles (fully active)
- Powertrain: 10 years/100,000 miles
- Federal Emissions: 8 years/80,000 miles
This repair should be covered at no cost.
What to Expect at the Dealer
- Code scan and testing
- TSB check
- O2 sensor replacement
- Verification
Expect 1-2 hours for the repair.
Hybrid/PHEV Notes
If your Santa Fe is a hybrid or PHEV, the O2 sensor affects the gas engine portion. The dealer has specialized equipment for hybrid diagnosis.