Affected vehicles include model-year 2020-21 Cadillac CT4 and CT5 sedans and model-year 2019-20 CT6 sedans, as well as model-year 2020-22 Chevrolet Camaro performance coupes, equipped with a 10-speed automatic transmission. The issue stems from a transmission control valve that may experience excess wear over time and result in harsh shifting. This may cause the front wheels to lock up, increasing the risk of a crash.
As a remedy, dealers will install transmission control module monitoring software for free. Owner notification letters are expected to be mailed beginning April 21, but those with further questions can contact Cadillac at 800-333-4223 or Chevrolet at 800-222-1020 (GM’s number for this recall is N242480630), the National Highway Traffic Safety Administration’s vehicle-safety hotline at 888-327-4236, or visit its website to check their vehicle identification numberand learn more.
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