TSB: CADILLAC ESCALADE, ESCALADE ESV, SIERRA 1500, SILVERADO 1500, SUBURBAN, TAHOE, YUKON, YUKON XL (2020–2024)

Bulletin PIT5734G — January 30, 2024

Bulletin Details

Bulletin IDPIT5734G
ManufacturerCADILLAC
ModelsESCALADE, ESCALADE ESV, SIERRA 1500, SILVERADO 1500, SUBURBAN, TAHOE, YUKON, YUKON XL
Model Years2020–2024
Date IssuedJanuary 30, 2024
Date Added to NHTSAFebruary 12, 2024
ComponentVISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
Vehicles Affected52 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

This Preliminary information communicates an issue with poor heater performance and advises dealerships to inspect the heater core inlet and outlet hoses for being twisted or kinked.

Affected Vehicles

MakeModelYearComponent
CADILLAC ESCALADE 2024 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CADILLAC ESCALADE 2024 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
GMC SIERRA 1500 2024 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
GMC SIERRA 1500 2024 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
CHEVROLET SILVERADO 1500 2024 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
CHEVROLET SILVERADO 1500 2024 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CHEVROLET SUBURBAN 2024 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CHEVROLET SUBURBAN 2024 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
CHEVROLET TAHOE 2024 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CHEVROLET TAHOE 2024 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
GMC YUKON 2024 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
GMC YUKON 2024 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
CADILLAC ESCALADE ESV 2023 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CADILLAC ESCALADE ESV 2023 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
GMC SIERRA 1500 2023 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
GMC SIERRA 1500 2023 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CHEVROLET SILVERADO 1500 2023 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
CHEVROLET SILVERADO 1500 2023 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CHEVROLET SUBURBAN 2023 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CHEVROLET SUBURBAN 2023 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
CHEVROLET TAHOE 2023 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CHEVROLET TAHOE 2023 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
GMC YUKON XL 2023 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
GMC YUKON XL 2023 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CADILLAC ESCALADE ESV 2022 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CADILLAC ESCALADE ESV 2022 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
GMC SIERRA 1500 2022 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
GMC SIERRA 1500 2022 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CHEVROLET SILVERADO 1500 2022 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
CHEVROLET SILVERADO 1500 2022 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CHEVROLET SUBURBAN 2022 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CHEVROLET SUBURBAN 2022 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
CHEVROLET TAHOE 2022 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CHEVROLET TAHOE 2022 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
GMC YUKON XL 2022 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
GMC YUKON XL 2022 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
CADILLAC ESCALADE ESV 2021 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
CADILLAC ESCALADE ESV 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
GMC SIERRA 1500 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
GMC SIERRA 1500 2021 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
CHEVROLET SILVERADO 1500 2021 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
CHEVROLET SILVERADO 1500 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CHEVROLET SUBURBAN 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CHEVROLET SUBURBAN 2021 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
CHEVROLET TAHOE 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CHEVROLET TAHOE 2021 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
GMC YUKON XL 2021 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
GMC YUKON XL 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
GMC SIERRA 1500 2020 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
GMC SIERRA 1500 2020 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
CHEVROLET SILVERADO 1500 2020 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CHEVROLET SILVERADO 1500 2020 138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

Related CADILLAC Recalls

CampaignModelYearComponentSummary
CTS 2016 AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR... General Motors, LLC (GM) is recalling certain 2015 Cadillac Escalade, Escalad...
ATS 2015 AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR... General Motors, LLC (GM) is recalling certain 2015 Cadillac Escalade, Escalad...
ESCALADE 2015 AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR... General Motors, LLC (GM) is recalling certain 2015 Cadillac Escalade, Escalad...
SRX 2015 AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR... General Motors, LLC (GM) is recalling certain 2015 Cadillac Escalade, Escalad...
SRX 2016 AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR... General Motors, LLC (GM) is recalling certain 2015 Cadillac Escalade, Escalad...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized CADILLAC dealer. Bring this bulletin ID (PIT5734G) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.