General Motors has issued a technical service bulletin for the 2020 Cadillac CT5-V sport sedan over a problem related to its differential control module.
According to the TSB document that GM sent to dealerships, the differential control module in affected vehicles may not properly shut down when the vehicle is turned off. This can result in a delayed startup which will cause it to lose synchronization with the brake system control module. This problem affects the 2020 model year Cadillac CT5-V only.
To remedy this minor issue, dealers will reprogram the brake system control module. These repairs will take a little under an hour for Cadillac service to remedy and does not require any repair parts, as this is a software problem only. This is a recent TSB that was only sent out to dealerships this month. The repairs will be performed at no cost to the vehicle owner.
The 2020 Cadillac CT5-V comes standard with a computer-controlled electronic differential that improves the sport sedan’s traction and handling. This advanced electronic differential is critical to the CT5-V’s impressive handling performance and is also offered in other GM products like the Chevy Camaro and C8 Corvette.
The 2020 Cadillac CT5-V is the performance-focused variant of the CT5 luxury sedan. It comes standard with a twin-turbo 3.0L V6 LGY engine making a healthy 360 horsepower and 405 pound-feet of torque. A GM 10-speed automatic transmission is standard and sends power to the rear wheels through the aforementioned e-differential. All-wheel-drive is also available as an optional extra. Other performance-enhancing standard equipment includes fourth-generation Magnetic Ride Control, Brembo front brakes and 19-inch alloy wheels shod in sticky summer-only tires.
The Cadillac CT5-V will be joined by an ultra-high performance CT5-V Blackwing model next summer, which will come with a supercharged 6.2L V8 LT4 engine and six-speed manual transmission. More information on this hardcore version of the sedan will be released in the months leading up to its arrival next year.
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Comments
Why isn’t this software update/fix performed withbOTA update? Eliminating the 1 hour dealer visit?
I would agree with you except I don’t want any company to have remote access to my cars
Interesting. A few weeks ago, my CT5-V had a message pop up on the Driver info display “Service Rear Axle.” It was only there for about 10 seconds or so, and hasn’t returned, but I wonder if this TSB is related.
I’ve really enjoyed the car so far. Runs & Drives terrific, but there have been quite a few electronic “gremlins” I’ve had to take it in for.
We’ve been having hesitation/skipping problems with our new CT5, twice it has lost power entirely while at highway speeds in cruise control. It had starting issues also and finally had its starter replaced. Anyone else having similar problems?
I can relate to both Jet and Paula just bought a
2024 CT5 Blackwing and I got the Service Rear Axel and also experienced some hesitation problems on the highway that happened to me once .Taking it in for service.
Love the car IT handles and brakes like a dream