P0135 on Your 2022 Tucson
Your 2022 Hyundai Tucson has set a P0135 diagnostic code, indicating a malfunction in the oxygen sensor heater circuit for Bank 1, Sensor 1. The redesigned 2022 Tucson offers the 2.5L four-cylinder (187 hp), 1.6L turbo hybrid (226 hp combined), or PHEV (261 hp combined). All are inline engines with a single exhaust bank.
At 2-3 years old, your Tucson should still have excellent warranty coverage.
Symptoms
- Check engine light on
- Slightly reduced fuel economy
- Minor rough cold idle
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 (likely still active)
- Powertrain: 10 years/100,000 miles
- Federal Emissions: 8 years/80,000 miles
This repair should be covered at no cost.
Repair Costs (If Out of Warranty)
- Dealer: $170-$300
- Independent shop: $140-$260
- DIY: $50-$120