Some 2020-2021 Ford F-Super Duty trucks equipped with a 6.7L engine may exhibit a low-speed downshift operation concern with automatic engine braking enabled.
This bulletin applies to 2020 GMC Acadia vehicles equipped with a 2.0L engine and 2019-2020 Sierra 1500 (new model) vehicles equipped with a 2.7L engine.
Some 2020-2022 Lincoln Corsair vehicles equipped with a power adjustable steering column may exhibit a creaking/squeaking/grinding and/or rubbing noise while the steering column is adjusted into the tilt up or down position.
