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P0135 on Chevrolet Traverse: Fix & DLC Location

Factory diagnostic troubleshooting wire for fault code P0135 (O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)) specifically on the Chevrolet Traverse (2020–2026, 2.5L Turbo 4-Cyl (328HP) / 3.6L V6 (310HP AWD)).

2020–2026
TraverseSUV
Sensor Voltage Ref
0.1V – 5.0V Ref
Traverse SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Drivable (Short Trip)
Low to Medium urgency level
Est. DIY Time
45 – 90 Min
Basic hand tools
Check P0135 On Another Chevrolet Model:

1. Symptoms of P0135 on Chevrolet Traverse

When the Engine Control Module (ECM/PCM) on your Chevrolet Traverse (2.5L Turbo 4-Cyl (328HP) / 3.6L V6 (310HP AWD)) logs fault code P0135, drivers commonly observe:

Check Engine Light on on Chevrolet Traverse (2.5L Turbo 4-Cyl (328HP) / 3.6L V6 (310HP AWD))
Slightly increased fuel consumption on short trips on Chevrolet Traverse (2.5L Turbo 4-Cyl (328HP) / 3.6L V6 (310HP AWD))
Failed state emissions inspection on Chevrolet Traverse (2.5L Turbo 4-Cyl (328HP) / 3.6L V6 (310HP AWD))
Chevrolet Traverse OBD-II Port Location
The 16-pin diagnostic connector is located Driver lower kick panel to the right of brake pedal. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Chevrolet Traverse

Historical warranty claims and technical repair bulletins for Chevrolet Traverse point to the following failure distribution:

55%
Burnt-out internal heating element in upstream oxygen sensor (Chevrolet OEM Part)
25%
Blown O2 sensor heater fuse (Chevrolet OEM Part)
12%
Melted or damaged sensor wiring near exhaust manifold (Chevrolet OEM Part)
8%
Excessive circuit resistance (Chevrolet OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Chevrolet Traverse.

3. Step-by-Step DIY Repair Guide for Chevrolet Traverse

01
Check the Heater Fuse

Locate the under-hood fuse box and test the O2 sensor heater fuse with a multimeter or test light. on the Chevrolet Traverse equipped with 2.5L Turbo 4-Cyl (328HP) / 3.6L V6 (310HP AWD).

02
Measure Sensor Heater Resistance

Unplug the Bank 1 Sensor 1 connector and test resistance between the two heater pins (typically 3 to 15 ohms). on the Chevrolet Traverse equipped with 2.5L Turbo 4-Cyl (328HP) / 3.6L V6 (310HP AWD).

03
Replace Upstream O2 Sensor

Use an O2 sensor socket wrench to remove the old sensor from the exhaust manifold and install an OEM-spec replacement with anti-seize on the threads. on the Chevrolet Traverse equipped with 2.5L Turbo 4-Cyl (328HP) / 3.6L V6 (310HP AWD).

Other Common Fault Codes on Chevrolet Traverse

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Chevrolet Traverse:

4. Chevrolet Traverse P0135 FAQs

What causes code P0135 to trigger on a Chevrolet Traverse?

On the Chevrolet Traverse (2.5L Turbo 4-Cyl (328HP) / 3.6L V6 (310HP AWD)), P0135 is most frequently caused by Burnt-out internal heating element in upstream oxygen sensor or Blown O2 sensor heater fuse.

Where is the OBD-II port located on my Chevrolet Traverse?

On the Chevrolet Traverse, the 16-pin DLC diagnostic connector is located Driver lower kick panel to the right of brake pedal. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Chevrolet Traverse with code P0135?

Yes, vehicle is safe to drive, but will stay in open-loop mode longer upon startup. Given that P0135 carries a Low to Medium severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.