GM 10-Speed Transmission Recall Expands: Valve Body Failures and Ongoing Shifting Problems
What’s the Problem
General Motors has expanded and complicated its ongoing recall of vehicles equipped with the 10-speed automatic transmission because of continuing valve body failures and associated safety risks. Recent updates show that more truck and SUV models are now part of the recall, and some owners who already had recall work done may need additional service because the original software update was incorrectly installed.
At the heart of the problem is a flawed transmission valve body — a core component that controls hydraulic pressure and shift logic inside the transmission. Wear or failure of this component can lead to erratic shifting and, in severe cases, momentary wheel lock-ups while driving. The recall is intended to detect and mitigate this risk, but the remedy and expansion of affected vehicles continue to evolve.
Allegations
The core complaints from owners and industry observers are that:
The valve body wears prematurely, leading to loss of pressure and unsafe shifting behavior.
GM’s initial remedy focused primarily on software fixes that mitigate symptoms rather than addressing the root hardware defect.
In some reported cases, dealers installed an incorrect software version, meaning vehicles meant to be protected against unsafe conditions still remain vulnerable.
These allegations mirror broader criticisms that GM’s recall remedies — both software and valve body part revisions — may not be fully effective in preventing recurring failures in everyday use. Independent technicians and owners have expressed frustration with slow parts availability, extended vehicle downtime, and concern about long-term reliability.
Recall / TSB
The recall effort covers multiple recall campaigns and technical service actions:
The valve body recall has been expanded to add additional 2022-model trucks and large SUVs that were not initially covered, especially those equipped with Electronic Transmission Range Select (ETRS) electronic shift systems.
A smaller subset of trucks that previously received software updates now needs a do-over because the installed software version was incorrect and does not effectively detect valve body wear.
Technical Service Bulletins (TSBs) guiding new repair procedures (such as updated valve body internals to address known weak points) have been issued by GM to replace or repair defective components during warranty/special coverage. These TSBs refine how dealers should address wash-out valve wear conditions that trigger codes like P0747 (Transmission Control Solenoid Valve Stuck).
Symptoms
Owners with affected vehicles may experience some or all of the following:
Harsh shifting, delayed gear engagement, or erratic gear changes.
Illuminated transmission warning lights or codes (e.g., P0747).
Limp-home or reduced-gear behavior triggered by software safeguards.
In rare instances, momentary rear wheel lock-up during downshifts at speed, creating a significant safety risk.
These symptoms often surface at higher speeds or under load (such as towing), and historically some owners have reported extended periods of repair delay due to parts scarcity.
How to Proceed
If you own a GM truck or SUV equipped with a 10-speed automatic transmission and believe it may be affected by the valve body recall, consider the following steps:
Check your vehicle’s recall status by VIN with GM or the National Highway Traffic Safety Administration (NHTSA).
Schedule a dealer inspection to confirm whether the valve body recall applies and whether the correct software and hardware remedies have been performed.
Document all communications and repair orders in case the transmission issues persist or are only partially remedied.
Contact Valero Law if you continue to experience shifting failures, unsafe transmission behavior, or if the recall remedy has not resolved your issues after multiple dealer visits.
Call Valero Law
If your GM truck or SUV has a defective 10-speed transmission with recurring valve body issues, and the recall remedies haven’t fixed the problem, you may be entitled to compensation under applicable lemon laws. Contact Valero Law, APC for a free case evaluation.