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P0355 on Chevrolet Traverse

Ignition Coil E Primary/Secondary Circuit Malfunction

Factory diagnostic protocol and troubleshooting wire for fault code P0355 specifically for the Chevrolet Traverse (2020–2026, 2.5L Turbo 4-Cyl (328HP) / 3.6L V6 (310HP AWD)).

Verified OEM Telemetry & Field Repair Tree
Chevrolet Traverse2020–2026
Chevrolet Traverse
SUV2.5L Turbo 4-Cyl (328HP) / 3.6L V6 (310HP AWD)
Reliability
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
Not Recommended
Critical urgency level
Est. Repair Cost
$100 - $350
Parts & Labor DIY
Check P0355 On Another Chevrolet Model:
Diagnose P0355 on Specific Traverse Model Year:

1. Symptoms of P0355 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 P0355, drivers commonly observe:

Flashing CEL on Chevrolet Traverse (2.5L Turbo 4-Cyl (328HP) / 3.6L V6 (310HP AWD))
Violent shuddering on Chevrolet Traverse (2.5L Turbo 4-Cyl (328HP) / 3.6L V6 (310HP AWD))
P0305 code 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%
Dead Cylinder 5 ignition coil (Chevrolet OEM Part)
25%
Wiring damage (Chevrolet OEM Part)
12%
PCM driver fault (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
Scan and Record Freeze Frame Telemetry

Connect an OBD-II scan tool and record freeze frame sensor telemetry for code P0355 to note engine RPM, load, and voltage when the fault triggered. on the Chevrolet Traverse equipped with 2.5L Turbo 4-Cyl (328HP) / 3.6L V6 (310HP AWD).

Required Tool: OBD-II Scanner
02
Inspect Related Wiring Harness & Connectors

Inspect the electrical connector and wiring harness related to P0355 for chafing, corrosion, moisture, or pin push-out. on the Chevrolet Traverse equipped with 2.5L Turbo 4-Cyl (328HP) / 3.6L V6 (310HP AWD).

Required Tool: Flashlight, Multimeter
03
Test Component Resistance & Voltage Supply

Measure circuit voltage supply (12V B+ or 5V reference) and sensor/actuator resistance according to factory repair manual specifications. on the Chevrolet Traverse equipped with 2.5L Turbo 4-Cyl (328HP) / 3.6L V6 (310HP AWD).

Required Tool: Digital Multimeter
04
Replace Defective Component

Install a new OEM-grade replacement part, torque fasteners to factory spec, and ensure electrical locking tabs click firmly. on the Chevrolet Traverse equipped with 2.5L Turbo 4-Cyl (328HP) / 3.6L V6 (310HP AWD).

Required Tool: Hand Tool Socket Set, Torque Wrench
05
Clear Trouble Codes & Complete Drive Cycle

Clear all stored DTCs from vehicle memory and perform an OBD-II drive cycle to confirm the diagnostic monitor resets to 'Ready'. on the Chevrolet Traverse equipped with 2.5L Turbo 4-Cyl (328HP) / 3.6L V6 (310HP AWD).

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing Chevrolet Traverse (P0355)

Prime Fast Delivery & Verified Fitment
OEM Ignition Component

Direct-Fit Laser Iridium Spark Plugs (Set of 4/6)

4.8 / 5.0 (Top Rated)

Pre-gapped iridium spark plugs engineered to restore smooth combustion on Chevrolet Traverse.

$36 – $68 Prime
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Ignition Service Tool

Magnetic Swivel Spark Plug Socket Set

4.8 / 5.0 (Amazon Choice)

360-degree magnetic swivel socket prevents ceramic plug cracks inside deep engine spark wells.

$16.99 Prime
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Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

Compare OEM & Aftermarket Replacement Sensors for Chevrolet TraverseVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
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Other Common Fault Codes on Chevrolet Traverse

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

4. Chevrolet Traverse P0355 FAQs

What causes code P0355 to trigger on a Chevrolet Traverse?

On the Chevrolet Traverse (2.5L Turbo 4-Cyl (328HP) / 3.6L V6 (310HP AWD)), P0355 is most frequently caused by Dead Cylinder 5 ignition coil or Wiring damage.

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 P0355?

No. Cylinder 5 ignition coil dead. Given that P0355 carries a Critical severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.