Chevrolet Bolt EV Heating and Air Conditioning: 5 Symptoms Worth Taking Seriously (2017-2023)

Most heating and air conditioning problems announce themselves well before they strand anybody. On a 2017-2023 Bolt EV, these are the ones worth acting on.

1. Vents that will not switch from defrost to floor

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

2. A clicking or ticking behind the dash when you change temperature

It rarely gets better on its own, and it usually gets louder before it gets expensive. Start by looking at blower motor resistors.

3. A musty smell for the first thirty seconds after startup

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

4. Air that only blows on the highest fan setting

By the time this is obvious you are generally replacing more than one part. Start by looking at blower motor resistors.

5. Air that is cold at highway speed and warm at a stoplight

This is the symptom people put off longest and regret most. Start by looking at cabin air filters.

What to Do Next

Cabin air filter every 12,000 to 15,000 miles, or annually. In North Texas with construction dust and cedar season, annually is the honest number.

Rear climate content, heated and cooled seats, and tri-zone systems all change the parts list.

We stock genuine GM parts for every nameplate on this list and ship nationwide from Dallas. Start at our Chevrolet OEM parts catalog, or search for Bolt EV cabin air filters if you already know what you need.