Understanding P0135 on Your 2022 Camaro
Your 2022 Chevrolet Camaro has set a P0135 diagnostic code, indicating a malfunction in the oxygen sensor heater circuit for Bank 1, Sensor 1. The 2022 Camaro lineup included the 2.0L turbocharged four-cylinder (275 hp), 3.6L V6 (335 hp), 6.2L LT1 V8 (455 hp), and the supercharged 6.2L LT4 in the ZL1 (650 hp).
On V6 and V8 models, Bank 1 is typically the driver's side (V8) or firewall side (V6) cylinder bank. On the turbo-four, there's one bank. Sensor 1 is the upstream O2 sensor before the catalytic converter. The heated sensor element allows quick transition to closed-loop fuel control.
Symptoms You May Notice
- Check engine light (steady)
- Minor fuel economy reduction
- Rough idle when cold
- Longer warm-up period
- Emissions test failure
Most Camaro owners notice the check engine light first. Once the car warms up, performance should be normal.
Common Causes on the 2022 Camaro
O2 Sensor Heater Element Failure
Even on a 2-3 year old car, the heater element can fail from manufacturing variation or thermal stress. The Camaro's performance-oriented engines produce significant exhaust heat.
Wiring or Connector Issue
Heat exposure near exhaust components can damage wiring insulation. The V8 models run particularly hot, stressing electrical components in the engine bay.
Aftermarket Exhaust Modifications
If your Camaro has headers, performance exhaust, or other modifications, the O2 sensor may experience different conditions than stock configuration.
Blown Fuse
A blown O2 heater fuse will trigger P0135. Check this first—it's free and takes minutes.
Warranty Coverage
Your 2022 Camaro should have warranty coverage:
- Bumper-to-Bumper: 3 years/36,000 miles (likely still active)
- Powertrain: 5 years/60,000 miles
- Federal Emissions: 8 years/80,000 miles for major components
If under 36,000 miles and within 3 years of purchase, this repair should be free. Contact your Chevrolet dealer to verify coverage.
Diagnosis Steps
- Verify warranty—May cover the repair
- Identify your engine—Affects sensor location
- Check fuse—Quick and free
- Note any modifications—May affect diagnosis and warranty
- Test heater resistance—Should be 2-30 ohms
- Verify power supply—Battery voltage with key on
Repair Costs (If Out of Warranty)
Professional Repair
- Dealer: $200-$400
- Independent shop: $150-$320
- Performance shop: $180-$350
DIY Approach
- OEM AC Delco sensor: $80-$150
- Quality aftermarket: $60-$120
What to Expect at the Dealer
Under warranty:
- Service advisor documents symptoms
- Technician scans codes and checks TSBs
- Heater circuit testing per GM procedures
- Most likely: O2 sensor replacement
- Software updates if applicable
- Verification drive
Typical repair time is 1-3 hours depending on engine configuration.
DIY Considerations
Only attempt DIY if out of warranty. Sensor access varies:
- 2.0L Turbo: Best access, most DIY-friendly
- 3.6L V6: Moderate difficulty
- 6.2L V8: Tight clearances, may need jack and stands
- ZL1: Supercharger complicates access significantly
Modifications and Warranty
Note that performance modifications may affect warranty coverage:
- Aftermarket headers can void emissions warranty
- Tunes may affect coverage determination
- Document that P0135 is unrelated to mods if possible
Performance Impact
P0135 doesn't affect full-throttle performance once the engine is warm. Your Camaro will still make full power on the track or drag strip. The issue is limited to cold-start fuel mixture and emissions.