Overhead Roof Console Inoperative / Service Safety Restraints Message / Sunroof Inoperative / Dome Lights Inoperative / DTCs B1A7A and U1121 – 2021-2023 Cadillac Chevrolet GMC

Chevrolet GMC Cadillac

NHTSA ID Number: 10224301 Manufacturer Communication Number: PIT5949 Summary This Preliminary information communicates an issue during start up that the following symptoms occur: – Service Safety Restraints System Message – Sunroof Inoperative – Sunshade Lights Inoperative – Dome Lights Inoperative – Power Liftgate Inoperative when using switch in overhead console – DTCs U1121 set in the BCM and B1A7A set in the …

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