Cuando usted comprar un coche nuevo, you generally expect it to be free from defects, from the engine to the interior. In some cases, though, defects in the manufacturing or production process can cause serious issues that will require action on the part of the automaker. This is exactly what has been happening with the 10-speed automatic transmissions in GM cars for the past year.

Full-size SUV models like the Chevrolet Silverado and Chevrolet Tahoe, GMC Sierra and GMC Yukon, Cadillac Escalade, Cadillac Escalade ESV, and even performance sedans like the Cadillac CT4 and CT5 from the years 2019 and beyond are experiencing severe transmission control valve issues, and the number of affected vehicles has reached well over 400,000. Knowing what the problem is and what you can do about it if you have one of these vehicles will help you stay safe on the road and get the help you need.

What the Defect Actually Does

​While any issue with a vehicle’s transmission is potentially serious, this GM defect is particularly dangerous. GM’s 10-speed automatic transmission is incredibly complex and uses precise pressure control to operate. In the affected models and model years, though, the control valve that regulates this pressure can wear prematurely. When that happens, the hydraulic pressure in the transmission becomes very inconsistent.

​Early on, this inconsistent pressure translates to harsh shifting, rough gear transitions, and delayed gear changes. Over time, though, the mechanism that shifts the gears can become uncalibrated by the transmission control module and may suddenly try to shift into two gears at once.

When this happens while the vehicle is downshifting from higher gears, the rear wheels may lock up under certain conditions, which can increase the risk of loss of vehicle control. At highway speeds, when this circumstance is most likely to occur, this condition can increase the risk of vehicle instability and potential accidents.

Affected Vehicles, Check Your VIN

​The number of vehicles that have been affected by this defect is growing and may be updated as additional information becomes available. This means that you should check your vehicle identification number (VIN) to see if your car is one of the specific makes, models, and model years that need to be brought into the dealership. Earlier recalls limited the range of models affected to specific vehicles, but more recent developments have widened the number of GM vehicles that are included in the safety recall.

If you have not received a notice, your vehicle may not be included in a current recall, but checking your VIN can confirm eligibility. You can do so on the National Highway Traffic Safety Administration website. You’ll be able to see any and all recalls that include your specific vehicle so you can get the help you need to stay safe.

It is also important to note that the 2022 Tahoe, Suburban, Yukon, and Escalade models are equipped with Electronic Transmission Range Select (ETRS) and are now under a separate, expanded recall (NHTSA 26V-085), which was issued in early 2026.

Why the Software Fix Is Not the End of the Story

​To remedy this defect in the 10-speed transmission, GM is offering a software update intended to provide additional warnings and reduce certain risks associated with the condition. This software update presents a “reduced propulsion” and “service engine” warning when your vehicle is around 10,000 miles from a potential rear-wheel lockup, so you can get it to a service center and get the worn valve replaced. It will also limit the transmission to five speeds, reducing the risk of the lockup happening.

While this can help you avoid a major crash, it does not address the root cause of the problem, which is the excess wear on the valve; it is merely an early warning system. There are some new valve bodies being developed, but they are currently difficult to get a hold of, and availability may vary depending on supply and service scheduling.

What Owners Should Do Right Now

Because this recall is so complex as well as potentially dangerous, if you own one of the affected vehicles, you need to be proactive about the problem. Your first step should be to check your VIN on the NHTSA database to see if your car is affected.

Once you have done that, contact the GM dealership directly. Ask them whether they will be issuing a recall for your particular vehicle and what remedy they plan to apply to it. You should be very specific when asking this question, so you can find out whether you will be getting the software update or if the redesigned valve body will be available.

Throughout the entire process of checking for the recall, be sure to keep detailed documentation. Write down everything you do and everyone you contact when trying to get the problem repaired. You should also keep any receipts, emails, or other written material that gets sent your way while your vehicle is still under the active recall.

If any issues come up later, once your factory warranty is up, you will want to have this documentation to support any goodwill repair requests at the dealership.

Where the Recall Ends and Owner Responsibility Begins

​While the recall attempts to limit the safety issues caused by the transmission design flaw, it does not address the root cause of it. Because of this, GM is issuing some warranty extensions for vehicles that are affected by the defect. The time and mileage caps on these extensions, though, vary from vehicle to vehicle and may not be sufficient for people who put many miles on their vehicle per year. If you end up with transmission issues after your warranty has run out, you may be responsible for repair costs if the issue occurs outside your coverage.

​If you want to protect yourself from the major cost of a transmission replacement down the line, a contrato de servicio de vehiculo (VSC) is one option to consider. With the right protection plan, you can get the replacement you need for a covered repair without depleting your emergency fund.

Get an Extra Layer of Protection With Endurance

​Since the GM recall is not yet addressing the actual cause of the transmission problems, owners of these vehicles need to be prepared, and an extended warranty or vehicle service contract from a third-party provider is a great choice.

Endurance ofrece planes de protección para automóviles of all kinds for all types of drivers and vehicles. Whether you want standard powertrain protection to help keep your transmission in good condition or you want something more comprehensive for your whole vehicle, Endurance has a plan for you.

Endurance offers coverage options for certain vehicles that may not be eligible with some providers, such as Canadian Gray Market cars, vehicles with a rebuilt or salvage title, and cars used for commercial purposes like rideshare and delivery.

Endurance plans also come with a suite of extra benefits to help keep you safe and secure on the road. These include things like Asistencia en carretera 24 horas al día, 7 días a la semana, protección contra interrupción de viaje, y Cobertura de alquiler de vehículos. Plus, you can get Endurance’s Beneficios de élite free for one year, including tire repair or replacement, windshield coverage, key fob replacement, and more.

​When you need the right coverage for your vehicle, get in touch with an Endurance representative at (800) 253-8203 para Cotización Gratis. También puedes comprar en línea para ver tu precio y recomendaciones de planes de inmediato.

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