What to Know About the NHTSA’s GM L87 Investigation
Norman Taylor & Associates
March 9, 2025
The NHTSA is looking into failures in GM’s L87 6.2L V8 engine after numerous reports of serious issues in Chevrolet, GMC, and Cadillac vehicles. Many owners have reportedly complained about bearing problems that can lead to major engine damage.
So, what does this mean for drivers? In this article, we’ll break down what’s happening, which models are affected, what owners are saying, and what steps you can take if you’re impacted.
Why Is the NHTSA Investigating GM’s L87 Engines?
The NHTSA is investigating the L87 engine after nearly 878,000 vehicle owners reported serious problems. Many say their engine bearings are failing, causing the engine to seize or even break apart. What’s worse, these issues often happen without warning, making them a major safety concern.
Signs of GM 6.2L V8 Engine Issues
Owners of L87-equipped vehicles have allegedly noticed several warning signs of engine trouble. Some of the most common issues include:
- Rattling Noises
- Oil Leaks
- Loss of Power
- Engine Stalling
- Warning Lights
What GM Models Have the L87 Engine?
The L87 6.2L V8 engine is found in several popular GM models, and if you own one, you might be affected by the ongoing investigation. The following models come standard or offer the L87 engine as an option:
Standard Models
- 2021–2024 Cadillac Escalade
- 2021–2024 Cadillac Escalade ESV
Optional Models
- 2019–2024 Chevrolet Silverado 1500
- 2019–2024 GMC Sierra 1500
- 2021–2024 Chevrolet Tahoe
- 2021–2024 Chevrolet Suburban
- 2021–2024 GMC Yukon
- 2021–2024 GMC Yukon XL
Some earlier models may have the L86 engine instead, which is not part of this investigation.
What Are Cadillac Escalade Owners Saying?
Many Cadillac Escalade owners have shared their frustrations on forums and the NHTSA website. Their complaints have revealed a pattern of alleged engine failures that left them stranded or facing costly repairs.
Owner Testimonials
- Stalling on the Highway: One driver’s 2023 Escalade stalled at 70 mph on the interstate. After pulling over, they discovered the engine had seized, which then led to a long and frustrating repair process.
- Unexpected Engine Shutdown: Another owner’s Escalade completely shut off while driving, forcing them to navigate across multiple lanes of traffic just to pull over safely. The dealership later confirmed the engine had failed with no warning signs.
- Repeated Engine Failures: Some owners have had to replace their engines more than once, which added to the frustration and reported financial burden of owning one of these vehicles.
What Are My Legal Options?
If you’re dealing with engine issues in your GM vehicle, it’s important to know your rights and what you can do next. Depending on your situation, you might have a few different options.
Class Action Lawsuit
There is potential for a class action lawsuit to emerge as more owners report issues with their L87 engines. A class action allows individuals with similar claims to band together, which can strengthen their case against the manufacturer. If you believe your vehicle is affected, stay informed about any developments regarding these types of lawsuits.
Lemon Law Claims
In California, the Lemon Law provides protections for consumers who purchase defective vehicles. If your vehicle has undergone multiple repairs for the same issue and remains unresolved, you may qualify for a lemon law claim, which could result in a replacement vehicle or refund. A lemon law attorney can help you understand your rights and figure out the best course of action.
Do You Have a Defective 2020 or Newer Vehicle? Contact Us
Think your vehicle could be a lemon? The Norman Taylor & Associates team is here to fight for your rights and get you the compensation you deserve. Contact us today for a FREE consultation!
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