To assist customers who are deaf, hard of hearing, or speech-impaired and who use Text Telephones (TTYs), Chevrolet has TTY equipment available at its Customer Assistance Center. Any TTY user in the U.S. can communicate with Chevrolet by dialing: 1-800-833-2438. TTY users in Canada can dial 1-800-263-3830.
Customer Assistance
OfficesDrive Range, Third Gear (Gen 2/Hybrid) Automatic Transmission Unit
As vehicle speed increases and operating conditions becomeappropriate, the transmission control module (TCM) processes inputsignals from the automatic transmission input and output speedsensors, the throttle position sensor and other vehicle sensors todetermine the precise moment to command OFF the ...