GM Extends Chevy Colorado Coverage for Fuel Injector Flow Fix — Why California Owners Should Pay Attention

GM has quietly expanded coverage for a fuel-injector flow-rate fix affecting select 2023–2024 Chevy Colorado pickups equipped with the turbocharged 2.7 L I4 engine. Under Service Update N242452130, dealerships now offer a free ECM reprogramming to correct inaccurate injector flow calibration, and this goodwill coverage now extends.

So, what's the big deal?

No hardware needs replacing—just a software update. Techs plug in your vehicle, verify the issue, and reflash the engine module, taking about 30 minutes. That simplicity masks what owners are reporting: noticeably smoother idling, quicker throttle response, and even improved fuel economy.

One Chevy Colorado (and GMC Canyon) owner on Reddit summed it up well after the update:

“Truck runs just as good as it did before the recall… that lady at GM said there’s a fuel injection issue”

Another Redditor reported a clear bump in MPG—going from 18 mpg to 22 mpg after the software update. These firsthand experiences highlight that even though this isn't a full-blown recall, the fix clearly enhances vehicle performance.

Why California Drivers Should Care

1. It's a documented safety or performance-related defect

Under California's Lemon Law and Song-Beverly Act, persistent issues related to drivability—especially affecting throttle, idle, or efficiency—can qualify as a defect if not resolved.

2. Repeated or extended repairs = potential claim

If your Colorado receives this ECM update and still suffers from poor idle, stalling, or fuel economy issues, that strengthens your case. Multiple attempts to fix the injector flow via reprogramming can be used as proof of a defective powertrain.

3. Evidence is already in GM’s own paperwork

The service update, extended coverage, and public complaints show that GM recognizes the issue exists. That documentation is golden evidence for Lemon Law claims.

What Should You Do Now?

  • Check your vehicle’s VIN status at your dealer or via GM customer service (use Service Update: N242452130).

  • Schedule the ECU update, even if you’re not noticing obvious symptoms.

  • Track driving behavior before and after the update—note idle quality, throttle response, and miles per gallon.

  • Retain all service records, including details on the software fix and any follow-up service visits.

  • If issues persist post-update, don’t ignore them. Consider contacting a California Lemon Law attorney—Valero Law, APC offers free case evaluations.

Final Takeaway

This service update isn’t just insurance against minor drivability quirks—it’s an official acknowledgment from GM that something in the powertrain software needed tuning. For California owners, it’s a chance to proactively resolve an issue before it becomes a bigger headache—or grounds for a Lemon Law claim.

If you’re in Los Angeles or anywhere across California, and your 2023–2024 Chevy Colorado still doesn’t feel right after the fuel-injector update—or if it required multiple reprogramming attempts—you might be eligible for repurchase, replacement, or cash settlement under state law.

📞 Call Valero Law, APC at (424) 299‑4447 or fill out our free evaluation form today. No recovery? No fee. Let us help you get the resolution you deserve.