15663 – OnStar Microphone Quality – 2016 Buick Chevrolet GMC
NHTSA ID Number: 10089571 Manufacturer Communication Number: 15663 Summary 15663 – SERVICE UPDATE. THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO RELOCATE A WIRE CIRCUIT WITHIN THE ONSTAR CONNECTOR ON CERTAIN VEHICLES. THESE VEHICLES LACK A GROUND IN THE MICROPHONE RETURN PATH, WHICH RESULTS IN THE VOICE RECOGNITION BECOMING INOPERABLE WHEN THE VEHICLE IS IN RETAINED ACCESSORY … Read more