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Lion Lemon

2020 · Midsize Sedan

Buick Regal Lemon Law

Experiencing problems with your Buick Regal? Our California lemon law attorneys can help you get the compensation you deserve.

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Common Buick Regal Problems

The LFY 2.0T engine's intake manifold runner control valve actuator fails, causing a loss of low-end torque, poor throttle response, and check engine light with DTC P2004 for intake manifold runner stuck open.
The 9-speed automatic transmission (9T50) experiences torque converter shudder between 35 and 50 mph during light acceleration, caused by degraded ATF fluid breaking down the TCC friction material lining.
The rear suspension trailing arm bushings develop premature cracking and separation, causing a noticeable rear-end wander during lane changes and a hollow clunking sound over uneven road surfaces.
The variable displacement oil pump controlled by solenoid P0521 fails to regulate oil pressure properly, resulting in oil pressure fluctuations, engine bearing wear, and potential catastrophic engine failure on the LFY 2.0T.
The passenger occupant detection sensor mat in the front seat malfunctions, causing the airbag status indicator to show the airbag as off even when an adult is seated, creating a serious safety deficiency per NHTSA complaints.

Your California Lemon Law Rights

Under California's Song-Beverly Consumer Warranty Act, if your Buick Regal has a substantial defect that cannot be repaired after a reasonable number of attempts, you may be entitled to:

  • Full refund of the purchase price
  • Replacement vehicle of comparable value
  • Cash compensation (cash-and-keep settlement)
  • Attorney's fees paid by the manufacturer

Buick Regal Lemon Law FAQ

My Buick Regal's 2.0T engine failed due to oil pump problems under warranty. Can I pursue a Lemon Law claim in California?

Yes. A catastrophic engine failure caused by a defective oil pump is a clear substantial nonconformity under the Song-Beverly Act. Even a single engine replacement may support a lemon law claim if the defect is severe enough. If the replacement engine develops the same oil pressure issues, your case becomes even stronger.

The dealer applied a software update for my Regal's transmission shudder but it came back. Does this count as a repair attempt?

Yes. Under California Lemon Law, any attempt by the dealer to fix the problem counts as a repair attempt, including software reflashes, fluid changes, and adaptive relearns. Each visit where the dealer addresses the transmission shudder complaint is documented on a repair order and counts toward the statutory threshold for a lemon law presumption.

Is the airbag occupant sensor defect in my Regal a safety issue that strengthens my California Lemon Law case?

Absolutely. A malfunctioning occupant detection sensor that disables the passenger airbag is a critical safety defect under the Song-Beverly Act. California law provides a lower threshold of only two repair attempts for defects that could cause death or serious bodily injury. A non-deploying airbag in a collision clearly meets this standard.

Can I get a replacement Buick vehicle instead of a refund under California Lemon Law for my Regal?

Yes. The Song-Beverly Act gives the consumer the choice between a refund and a replacement vehicle of the same make and model. If the Regal model has been discontinued, you are entitled to a comparable replacement vehicle. The manufacturer must also cover any incidental costs such as registration transfer and sales tax on the replacement.

Other Buick Models We Cover

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