# Service bulletin 21NA147

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10200146
- Published by NHTSA: 2021\-08\-09
- Manufacturer's number: 21NA147
- Manufacturer's date: 2021\-06\-22
- NHTSA component: ELECTRICAL SYSTEM:IGNITION:COIL:SPARK PLUGS; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ENGINE AND ENGINE COOLING

## NHTSA's summary

This service bulletin provides a repair procedure to correct a customer concern of Coolant and/or Oil Leak, Malfunction Indicator Lamp \(MIL\) Illuminated?.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10200146-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10200146-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Engine, Equipment and accessories, Ignition, Spark plugs

## Vehicles listed

- 2010 to 2021 BUICK ENCLAVE
- 2010 to 2019 BUICK LACROSSE
- 2018 to 2020 BUICK REGAL
- 2013 to 2019 CADILLAC ATS
- 2020 to 2022 CADILLAC CT5
- 2016 to 2020 CADILLAC CT6
- 2010 to 2019 CADILLAC CTS
- 2014 CADILLAC CTS\-V
- 2010 to 2016 CADILLAC SRX
- 2017 to 2022 CADILLAC XT5
- 2020 to 2022 CADILLAC XT6
- 2013 to 2019 CADILLAC XTS
- 2019 to 2021 CHEVROLET BLAZER
- 2010 to 2022 CHEVROLET CAMARO
- 2012 to 2015 CHEVROLET CAPRICE POLICE PURSUIT
- 2013 to 2015 CHEVROLET CAPTIVA
- 2012 CHEVROLET CAPTIVA SPORT
- 2015 to 2021 CHEVROLET COLORADO
- 2010 to 2017 CHEVROLET EQUINOX
- 2012 to 2020 CHEVROLET IMPALA
- 2010 to 2022 CHEVROLET TRAVERSE
- 2010 to 2022 GMC ACADIA
- 2015 to 2022 GMC CANYON
- 2010 to 2017 GMC TERRAIN

## Recalls for the same vehicles and component

- [16V502000](/recalls/nhtsa/16V502000.md), 2016-07-05: ELECTRICAL SYSTEM:IGNITION; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)
- [14V394000](/recalls/nhtsa/14V394000.md), 2014-07-02: ELECTRICAL SYSTEM:IGNITION
- [14V355000](/recalls/nhtsa/14V355000.md), 2014-06-23: ELECTRICAL SYSTEM:IGNITION
- [14V346000](/recalls/nhtsa/14V346000.md), 2014-06-20: ELECTRICAL SYSTEM:IGNITION

## Other bulletins for the same vehicles and component

- [PIE0296](/bulletins/10253123.md), 2024-04-15, Service bulletin: ELECTRICAL SYSTEM:IGNITION:ANTI\-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. Engineering Information
- [14299D](/bulletins/10248761.md), 2024-01-16, Service bulletin: ELECTRICAL SYSTEM:IGNITION; ELECTRICAL SYSTEM. Unintended Ignition Key Rotation
- [14294A](/bulletins/10248759.md), 2024-01-16, Service bulletin: ELECTRICAL SYSTEM:IGNITION:ANTI\-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER; EQUIPMENT:ELECTRICAL. Ignition Key
- [14294](/bulletins/10248758.md), 2024-01-16, Service bulletin: EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:IGNITION:ANTI\-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. Ignition Key
- [PIT5119B](/bulletins/10247719.md), 2023-12-26, Service bulletin: UNKNOWN OR OTHER; ELECTRICAL SYSTEM:IGNITION:ANTI\-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. Intermittent Remote Keyless Entry Inoperative.
- [PIT4271E](/bulletins/10247648.md), 2023-12-26, Service bulletin: UNKNOWN OR OTHER; ELECTRICAL SYSTEM:IGNITION. Light Flashes or Stays on Steady During A Remote Start.
- [14497A](/bulletins/10245893.md), 2023-12-04, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:IGNITION. Unintended Ignition Key Rotation
- [14299A](/bulletins/10245888.md), 2023-12-04, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:IGNITION. Unintended Ignition Key Rotation
- [14172B](/bulletins/10245885.md), 2023-12-04, Service bulletin: ELECTRICAL SYSTEM:IGNITION; ELECTRICAL SYSTEM. Unintended Ignition Key Rotation
- [14172A](/bulletins/10245884.md), 2023-12-04, Service bulletin: ELECTRICAL SYSTEM:IGNITION; ELECTRICAL SYSTEM. Unintended Ignition Key Rotation

JSON: [/v1/bulletins/10200146](/v1/bulletins/10200146)

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