This bulletin applies to 2016-2018 Chevy Camaro and Corvette vehicles equipped with the 6.2L LTi or LY4 engine, which may experience a mystery coolant loss. If the coolant is low, pressure test the system looking for leaks at the outer cylinder head bolt locations.
Some 2012-2013 Ford Flex, Mustang, Taurus and Edge vehicles equipped with a 3.5L twin-independent variable cam timing (TIVCT) or 3.7L engine and built on Jan. 3, 2012,through July 31, 2012, may exhibit a MIL on with DTC P1450.
An owner of a 2008-2015 Buick Enclave may comment about the ABS and red brake lamp on. When trying to retrieve DTCs, the technician’s scan tool may not communicate with the EBCM. The scan tool may communicate with all other high and low speed GM LAN modules and some may have set a U0121 DTC against the EBCM.
Ram 2500, 3500 and 3500 Cab Chassis vehicles equipped with a 6.4L engine and 66RFE automatic transmission may need the converter replaced and technicians can find out by inspecting the torque converter build date.
This bulletin applies to 2016-2020 Toyota Mirai vehicles equipped with hydrogen engines. During vehicle inspections, when the under covers are removed, debris may be found on the under cover near the end of the hydrogen tank. Upon closer inspection, the debris is found to be coming from the end protector of the tank.