Chevrolet Traverse Exhaust and Emissions: 4 Symptoms Worth Taking Seriously (2018-2023)

Most exhaust and emissions problems announce themselves well before they strand anybody. On a 2018-2023 Traverse, these are the ones worth acting on.

1. A diesel that regenerates far more often than it used to

It rarely gets better on its own, and it usually gets louder before it gets expensive. Start by looking at diesel particulate filters.

2. A P0420 or P0430 efficiency code

It rarely gets better on its own, and it usually gets louder before it gets expensive. Start by looking at oxygen sensors.

3. A check engine light that appears after fueling and clears itself

This is the symptom people put off longest and regret most. Start by looking at DEF injectors.

4. An exhaust tick on cold start that quiets as the manifold expands

This one is usually early, which is good news, because it is cheap to fix early. Start by looking at oxygen sensors.

What to Do Next

Not scheduled. Converters are warranted separately under federal emissions rules, so check coverage before you buy.

Emissions equipment varies by state of original sale on some model years.

Shops and fleets can set up wholesale pricing at gmpartsclub.com/wholesale. Everyone else can start at our Chevrolet OEM parts catalog or search for Traverse catalytic converters.

Where to Buy

• Genuine Chevrolet OEM parts
• Catalytic Converters
• Oxygen Sensors
• Def Injectors
• Diesel Particulate Filters
• Wholesale account setup