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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Service Safety Restraint System Message with DTC B1A7A Set – 2022 Buick Envision

2022 Buick Envision

NHTSA ID Number: 10218888 Manufacturer Communication Number: 22-NA-162 Summary This technical bulletin provides repair information to correct a customer concern of Service Safety Restraint System Message with DTC B1A7A Set.   Condition Some customers may comment that during an Autostart event the overhead console may incorrectly cause a “Service Safety Restraint System” message in the Driver Instrument …

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

2021 Chevrolet Tahoe

NHTSA ID Number: 10204456 Manufacturer Communication Number: PIT5774D Summary This Preliminary information communicates an issue with: Overhead Console Inoperative / Service Safety Restraints Message / Sunroof Inoperative / DTC’s B1A7A and U1121.  Dealers are to cycle the power to the overhead console to correct the issue.  Engineering has released updated roof consoles to correct this concern.  Dealers are …

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Service Safety Restraint System Message With B1A7A In History Or Right Rear Dome Lamp Not Working – 2022 Buick Envision

2022 Buick Envision

NHTSA ID Number: 10206742 Manufacturer Communication Number: PIT5879   Summary This Preliminary information communicates an issue where the airbag indicator may be illuminated with a B1A7A stored and/or inoperative right rear dome light.     1 Affected Product Vehicle MAKE MODEL YEAR BUICK ENVISION 2022   Condition Some customers may have a Service Safety Restraint System message accompanied …

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