Service Update N202321920 Engine Coolant Inlet Pipe – 2021 Cadillac Chevrolet GMC

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NHTSA ID Number: 10187621

Manufacturer Communication Number: N202321920

 

Summary

Service Update. A small number of vehicles may have a coolant inlet pipe that may present an obstructed threaded hole for the coolant temp sensor which could result in the check engine light coming on or a potential coolant leak. Dealers are to replace the coolant inlet pipe and temperature sensor.

 

4 Affected Products

Vehicles

MAKE MODEL YEAR
CADILLAC XT4 2021
CADILLAC XT5 2021
CHEVROLET BLAZER 2021
GMC ACADIA 2021

 

 

 


Parts

Quantity Part Name Part No.
1 Engine Coolant Thermostat Inlet Pipe 55507975
1 Engine Coolant Temperature Sensor 55488246
1 Gasket, Thermostat Inlet Pipe 55504553
1 Engine Coolant – US 12378390
Engine Coolant – CA 10953456
1 Exhaust Pipe Clamp 11603519
1 Catalytic Converter Gasket 55502444
2 Exhaust Muffler Gasket 22816982 Service Update N202321920 Engine Coolant Inlet Pipe - 2021 Cadillac Chevrolet GMC | small light
 

 

 

 

 



NHTSA ID Number: 10187348

Manufacturer Communication Number: N202321920

 

Summary

Service Update. A small number of vehicles may have a coolant inlet pipe that may present an obstructed threaded hole for the coolant temp sensor which could result in the check engine light coming on or a potential coolant leak. Dealers are to replace the coolant inlet pipe and temperature sensor.

 

1 Associated Document

Manufacturer Communications

Service Update
N202321920 Engine Coolant Inlet Pipe
Release Date: December 2020
Revision: 00

https://www.nhtsa.gov/recalls?nhtsaId=10187348

MC-10187348-9999.pdf 84.549KB

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1 Associated Document

Manufacturer Communications

Service Update
N202321920 Engine Coolant Inlet Pipe

Release Date: December 2020
Revision: 00

MC-10187621-9999.pdf 84.549KB

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Download [82.57 KB]

 


 

“This site contains affiliate links for which OEMDTC may be compensated”
Bestseller No. 1
Zerex DEX-Cool Organic Acid Technology 50/50 Ready-to-Use Antifreeze/Coolant 1 GA
  • ZEREX DEX-COOL antifreeze coolant is approved by General Motors to the GM 6277M specification
  • ZEREX DEX-COOL antifreeze coolant contains no phosphates, silicates, borates, nitrates, amines and nitrites
  • Valvoline ZEREX DEX-COOL antifreeze coolant is a patented carboxylate formulation with a service life of up to five years or 150,000 miles
  • When diluted 50percent with water, ZEREX DEX-COOL protects modern engine components from winter freezing and summer boiling
  • For any product use or product technical questions call 1-800-TEAM-VAL
SaleBestseller No. 2
Zerex Valvoline DEX-Cool Organic Acid Technology Concentrate Antifreeze/Coolant 1 GA
  • UNSURPASSED FREEZE PROTECTION AND ANTI-BOIL PERFORMANCE outperforms industry standards
  • ORGANIC ACID TECHNOLOGY RESISTS RUST, SCALE & CORROSION while protecting all cooling system metals (including aluminum)
  • HIGH-QUALITY ADDITIVES PROTECT AGAINST LEAKS and won’t harm gaskets, hoses, plastics or original vehicle finish
  • ORANGE CONCENTRATE FORMULA should be mixed with clean tap water or demineralized water at 50/50 ratio for temperatures -34 to 265F; 60/40 for -62 to 270F; and 70/30 for -84 to 267F
SaleBestseller No. 3
ACDelco 10-101 DEX-COOL Extended Life Coolant - 1 Gallon
  • ACDelco 10-101 DEX COOL (ORANGE)
  • Contains A Bittering Agent
  • OEM
Bestseller No. 4
Bestseller No. 5
Zerex DEX-COOL Organic Acid Technology Concentrate Antifreeze/Coolant 1 GA, Case of 6
  • ZEREX DEX-COOL antifreeze coolant is approved to the GM 6277M specification
  • ZEREX DEX-COOL antifreeze coolant contains no phosphates, silicates, borates, nitrates, amines and nitrites
  • Valvoline ZEREX DEX-COOL antifreeze coolant is a patented* carboxylate formulation with a service life of up to five years or 150,000 miles
  • When diluted 50% with water, ZEREX DEX-COOL protects modern engine components from winter freezing and summer boiling
  • For any product use or product technical questions call 1-800-TEAM-VAL
Bestseller No. 6
Zerex Valvoline DEX-Cool Organic Acid Technology 50/50 Prediluted Ready-to-Use Antifreeze/Coolant 1 GA, Case of 6
Bestseller No. 7
PEAK OET Extended Life Orange Concentrate Antifreeze/Coolant for North American Vehicles, 1 Gal.
  • 1 GALLON ENGINE ANTIFREEZE/COOLANT: Fully compatible with other extended life antifreeze/coolants. This item contains a bittering agent called Denatonium Benzoate.
  • PROTECTS: Advanced formulation prevents rust & corrosion protecting all engine cooling system components
  • DESIGNED FOR NORTH AMERICAN VEHICLES: Recommended for use with Ford, Chrysler, and GM vehicles that require an orange organic acid technology formula
  • GUARANTEED: When installed as part of a complete flush and fill, PEAK guarantees this coolant will provide service life protection of up to 150,000 miles or 5 years.
  • CONCENTRATED FORMULA: Ideal for flushing, filling, or topping off your cooling system
Bestseller No. 8
Prestone AF888-6PK Dex-Cool Antifreeze/Coolant - 1 Gallon, (Pack of 6)
  • Recommended and formulated for use in all vehicles that require Dex-Cool coolant
  • Also for use with cars and light-duty trucks with aluminum radiators using extended life coolant
  • Blend of premium long-lasting inhibitors provides extended performance
  • Protects against temperature extremes and the ravages of rust and corrosion
  • Good for 5 years or 150,000 miles
SaleBestseller No. 9
Zerex American Vehicle 50/50 Prediluted Ready-to-Use Antifreeze/Coolant 1 GA
  • UNSURPASSED FREEZE PROTECTION AND ANTI-BOIL PERFORMANCE outperforms industry standards
  • ORGANIC ACID TECHNOLOGY RESISTS CORROSION, SCALE AND RUST while protecting all cooling system metals (including aluminum)
  • HIGH-QUALITY ADDITIVES PROTECT AGAINST LEAKS and won’t harm gaskets, hoses, plastics or original vehicle finish
  • PRE-MIXED ORANGE FORMULA IS READY-TO-USE in a 50/50 ratio with deionized water to protect all modern engine components from winter freezing (-34F) and summer boiling (265F).
Bestseller No. 10
Saab Original 9-4x, 9-5, 9-3, 9-7x Antifreeze Dexcool 12346290
  • Fits: Saab 9-3 2003 to 2011; Saab 9-3 1999 to 2003; Saab 9-4x 2011; Saab 9-5 2010 to 2011
  • Fits: Saab 9-5 1999 to 2009; Saab 9-7x 2005 to 2009

Last update on 2024-03-03 / Affiliate links / Images from Amazon Product Advertising API

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