NHTSA ID Number: 10219391 Manufacturer Communication Number: 21-NA-181 Summary This service bulletin provides 9th gear operation information to respond to customers that may comment on transmission shift operation. Condition Some customers may comment that the transmission doesn’t shift into 9th gear or maintain 9th gear operation to customer expectations. Information The GM 9-speed transmission does … Read more
NHTSA ID Number: 10226379 Manufacturer Communication Number: PIT5940A Summary This Preliminary information communicates that a customer may notice that the gridlines on the backup camera are very dim. They may mention that this occurred after an OTA update. The dealer technician is advised to perform no repairs. The technician is advised that engineering is looking into a … Read more
NHTSA ID Number: 10222825 Manufacturer Communication Number: 16-NA-405 Summary This service bulletin provides a procedure to install a PCV heater or a charge air cooler to correct the turbo charger system from freezing causing cold weather performance issues. Condition Some customers may comment that when driving in extremely cold weather conditions (-18°C or less / 0°F … Read more
NHTSA ID Number: 10219266 Manufacturer Communication Number: 20-NA-065 Summary This bulletin provides information on tools available to find an intake vacuum leak or exhaust leak to correct a condition of MIL Illuminated with Multiple Fuel Trim and/or Oxygen Sensor Codes Set. Condition Some customers may comment that the MIL is illuminated. Technicians may find one or … Read more
NHTSA ID Number: 10220386 Manufacturer Communication Number: N212354520-01 Summary Customer Satisfaction Program. Due to the industry-wide semiconductor shortage, the front heated/ventilated seats, front heated seats, or rear heated seats are not functional on certain 2022-2023 model year vehicles listed above, built beginning November 15, 2021. The affected vehicle owners should have been made aware of the condition … Read more