The problem
General Motors, LLC (GM) is recalling certain 2024 Cadillac Lyriq, Chevrolet Blazer EV, Chevrolet Silverado EV, GMC Hummer EV SUV, and GMC Sierra EV vehicles. The electric motors in the rear drive units may have insufficiently insulated wires that can contact each other, resulting in a loss of drive power.
The risk
A loss of drive power increases the risk of a crash.
The fix
Dealers will replace the rear drive unit, free of charge. Owner notification letters were mailed May 16, 2024. Owners may contact Chevrolet customer service at 1-800-222-1020; Cadillac customer service at 1-800-458-8006; Hummer customer service at 1-800-732-5493; or GMC customer service at 1-800-462-8782. GM's number for this recall is N242447080.
Recall details
| NHTSA campaign | 24V-320 (24V320000) |
|---|---|
| Manufacturer number | N242447080 |
| Manufacturer | General Motors, LLC |
| Component | Electrical system › Propulsion system |
| Report date | May 9, 2024 |
| Owners notified | May 16, 2024 |
| Vehicles affected | 10 |
| Initiated by | Manufacturer |
Vehicles covered
Plus 1 other model/year combinations not covered on this site.
Owner complaints about the electrical system
Frequently asked questions
Is the recall 24V-320 repair free?
Yes. Cadillac dealers will fix the problem at no cost: Dealers will replace the rear drive unit, free of charge. Owner notification letters were mailed May 16, 2024. Owners may contact Chevrolet customer service at 1-800-222-1020; Cadillac customer service at 1-800-458-8006; Hummer customer service at…
How do I know if my car is included?
Not every vehicle of the listed model years is affected — the recall covers 10 vehicles built in a certain window. Check your 17-character VIN with our VIN recall check or at nhtsa.gov/recalls.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.