N252494002: Full Breakdown of the GM 6.2L V8 Engine Recall and What Owners Need to Know

The recall identifier N252494002 has gained significant attention in 2025 after General Motors (GM) announced a major safety recall affecting vehicles equipped with the 6.2L V8 engine (L87). This recall is tied to loss of propulsion, a serious safety risk that prompted filings with the National Highway Traffic Safety Administration (NHTSA) and widespread concern among truck and SUV owners.

What Is Recall N252494002

N252494002 is an internal GM recall number associated with a federally reported NHTSA safety recall (25V274). The recall addresses a critical engine defect that may cause sudden loss of propulsion while driving.

According to NHTSA documents, the issue stems from internal engine component failures that can lead to:

• Engine stalling

• Reduced or total loss of power

• Increased risk of crashes, especially at highway speeds

This recall is classified as safety-related, not cosmetic or informational.

Vehicles and Engines Affected by N252494002

The recall N252494002 primarily affects GM trucks and SUVs equipped with the 6.2L V8 L87 engine, including:

• Chevrolet Silverado 1500

• GMC Sierra 1500

• Certain full-size GM SUVs (model years vary)

These vehicles are popular for towing, hauling, and long-distance driving, which makes the loss-of-propulsion risk especially serious.

Not all 6.2L engines are affected—only those produced within specific manufacturing date ranges outlined in the NHTSA recall filings.

What Is the Engine Defect Behind N252494002

The core issue behind N252494002 involves internal engine failures, which reports and owner complaints suggest may include:

• Crankshaft or bearing damage

• Improper manufacturing tolerances

• Premature wear of internal components

• Potential lubrication-related failures

In some cases, drivers reported no warning lights before power loss, increasing the danger. GM acknowledged that under certain conditions, the engine can fail without gradual degradation, making early detection difficult.

Safety Risks and Symptoms to Watch For

The most serious risk associated with N252494002 is unexpected loss of propulsion, which can occur:

• At highway speeds

• While towing

• During acceleration or merging

Warning signs may include:

• Engine knocking or ticking noises

• Sudden reduction in power

• Check engine light illumination

• Complete engine shutdown

However, NHTSA documents note that failure can occur without prior symptoms, reinforcing the urgency of the recall.

GM’s Response and Recall Remedy

Under recall N252494002, GM is required to:

• Notify affected owners

• Inspect impacted vehicles

• Repair or replace defective engine components at no cost

Depending on inspection results, remedies may include:

• Engine repair

• Partial engine replacement

• Full engine replacement in severe cases

GM dealerships are instructed to follow specific service bulletins tied to the recall and report findings back to the manufacturer and NHTSA.

What Owners Should Do If Their Vehicle Is Affected

If you own a GM vehicle with a 6.2L V8 engine, you should:

1. Check your VIN on the NHTSA recall website

2. Contact an authorized GM dealership

3. Schedule a recall inspection immediately

4. Avoid aggressive driving or towing until inspected

5. Keep records of all service visits

Some owners are also consulting consumer protection or lemon law attorneys, especially if engine failure has already occurred outside warranty coverage.

Conclusion

N252494002 is a serious GM engine recall tied to loss of propulsion in vehicles equipped with the 6.2L V8 L87 engine. Filed with the NHTSA and backed by owner complaints and technical reports, this recall highlights the importance of prompt inspection and repair.

If you own an affected Chevrolet or GMC vehicle, taking immediate action is critical for safety, reliability, and long-term vehicle value. Staying informed about N252494002 ensures you can protect yourself, your passengers, and others on the road.