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GM says a new central compute system, planned to debut in the 2028 Cadillac Escalade IQ, will expand the range of vehicle software updates that can be delivered over the air. Senior executive Jaclyn McQuaid said the goal is to reduce dealership visits, but GM has not said which updates will qualify or when the system will reach future Silverados.
General Motors says a new central compute system planned for its next-generation vehicles should let more software updates reach owners over the air, reducing the number of issues that require a dealership visit. Jaclyn McQuaid, GM’s senior vice president of vehicle products, said the aim is to move more work from dealerships to remote updates, while cautioning that not every update will be possible remotely.
McQuaid described the goal in an interview on The Drivecast, responding to a question about whether GM’s new system could support software updates without a service visit when no physical hardware needs attention. “The goal is to significantly reduce what would need a dealership visit versus what can be done OTA,” she said. She added that she could not say every update would be available over the air.
GM says the central system will consolidate functions now handled by dozens of separate modules. McQuaid said the architecture will expand the range of components capable of receiving OTA updates. The automaker says the system will have 40 times more computing power than its current architecture, though the report does not specify the measurement or comparison conditions behind that figure.
The first planned application is the 2028 Cadillac Escalade IQ, not a Silverado. GM has not announced when the system will arrive in future Silverado models. McQuaid said the company is bringing software development in-house, with GM engineers writing code for the system. She said common software across gas and electric vehicles could allow GM to develop and validate software once, then use it across a wider range of models.
How Remote Updates Could Change Ownership
More software work handled remotely could mean fewer trips to a dealer for owners, especially when a problem can be addressed with a code change rather than a physical repair. GM could also reduce duplicated development and testing if it can use shared software across more vehicles. McQuaid presented both outcomes as aims of the architecture, not as measured results already achieved.
The change would not remove the need for service departments. Mechanical repairs and hardware work—such as replacing tires or worn suspension parts—still require hands-on service. Even for software, GM has not detailed which functions or faults will be eligible for OTA fixes, or how owners will be notified and asked to install them.
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From Existing Updates to Central Computing
GM vehicles already receive some over-the-air software updates, according to McQuaid. She said she had recently accepted an update in a new light-duty gas-powered truck that took about 15 minutes. The current system, however, uses many separate modules, and McQuaid said some can receive OTA updates while others may not.
The central compute system is part of GM’s planned next-generation electrical architecture. The automaker has described it as the foundation for future vehicle software and features. McQuaid contrasted it with a zonal approach, saying a single central computer may avoid some fragmentation and latency, while also presenting packaging challenges because the unit is large. Her comments describe GM’s engineering rationale; the report provides no independent comparison of performance between architectures.
“The goal is to significantly reduce what would need a dealership visit versus what can be done OTA.”
— Jaclyn McQuaid, GM senior vice president of vehicle products, speaking to The Drive
Silverado Rollout and Update Limits
GM has not provided a Silverado launch date for the central compute system, a list of vehicles beyond the Escalade IQ that will use it, or a schedule for broader deployment. The company also has not identified which updates will be remotely installable, how often owners can expect them, or how many dealership visits the system could prevent.
The 40-times computing-power figure is attributed to McQuaid, but the source material gives no technical definition, test conditions or direct benchmark. Nor does it establish how the system will perform in production vehicles. Hardware faults and physical maintenance will continue to require service, and the extent of any reduction in visits remains a goal rather than a demonstrated outcome.
Escalade IQ Starts the Rollout
The next stated milestone is the central compute system’s planned debut in the 2028 Cadillac Escalade IQ. GM has not announced when it will confirm additional models, including future Silverados, or release detailed information on which OTA features and fixes the system will support.
As the launch approaches, owners and fleet operators will need more specifics on update eligibility, installation timing, connectivity requirements and what still requires a dealer. Until GM publishes those details, fewer dealership visits should be understood as the company’s stated objective, not a guaranteed result for Silverado owners.
Key Questions
Will the new system be in the next Silverado?
GM has not announced when the central compute system will reach future Silverados. The first planned vehicle is the 2028 Cadillac Escalade IQ.
Will every repair be handled over the air?
No. McQuaid said GM cannot promise that every update will be OTA-capable. Work that requires physical parts or repairs will still need a service visit.
Do GM vehicles already receive over-the-air updates?
Yes. McQuaid said GM vehicles currently receive some OTA updates, although the existing system relies on dozens of modules and not all of them may support remote updates.
How much more computing power will the new system have?
McQuaid said it will have 40 times more compute power than GM’s current architecture. The source report does not provide the measurement method or comparison conditions.
Source: thedrive.com
