2019 Buick P0302: What It Means & Is It Safe to Drive?
P0302 on the 2019 Buick: Cylinder 2 Misfire Detected. Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
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What this code means
The PCM has detected a misfire on cylinder 2. Same logic as P0301, but for a different cylinder.
Common causes on the 2019 Buick
- Worn or fouled spark plug on cylinder 2
- Failing ignition coil
- Leaking or clogged fuel injector
- Low compression on cylinder 2
Symptoms
- Check Engine Light
- Noticeable shaking, especially at idle
- Loss of power or hesitation
Typical fixes
- Replace spark plug/coil on cylinder 2
- Clean or replace injector
- Address internal engine problems if compression is low
Repair cost range
For a 2019 Buick, repairs for P0302 typically fall between $150 and $900, depending on the root cause and labor rates in your area.
Known issues on Buick
Buick cylinder 2 misfire diagnosis mirrors P0301. On 3.6L LFX engines, swap the coil from cylinder 2 to confirm before replacing. On 2.0T Ecotec, cylinder 2 GDI carbon buildup is equally common as cylinder 1.
Most commonly affected models
Enclave 3.6L 2008–2017Regal 2.0T 2011–2017LaCrosse 3.6L 2010–2016