# Service bulletin PIT5868

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: 10204458
- Published by NHTSA: 2021\-12\-13
- Manufacturer's number: PIT5868
- Manufacturer's date: 2021\-11\-29
- NHTSA component: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:HEATER CORE; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT

## NHTSA's summary

This Preliminary information communicates an issues will low or poor heater performance on the drivers side. Dealers are to inspect the HVAC temperature door linkage and if ok replace the heater core.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10204458-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10204458-9999.pdf)

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

## Components

Equipment and accessories, Glass, wipers and mirrors, Heating and air conditioning

## Vehicles listed

- 2021 CADILLAC ESCALADE
- 2021 CADILLAC ESCALADE ESV
- 2019 to 2021 CHEVROLET SILVERADO 1500
- 2020 CHEVROLET SILVERADO 2500
- 2021 CHEVROLET SUBURBAN
- 2021 CHEVROLET TAHOE
- 2019 GMC SIERRA 1500
- 2021 GMC SIERRA 1500
- 2020 GMC SIERRA 2500
- 2021 GMC YUKON
- 2021 GMC YUKON XL

## Recalls for the same vehicles and component

- [2022160](/recalls/tc/2022160.md), 2022-03-31: Accessories
- [21V496000](/recalls/nhtsa/21V496000.md), 2021-07-01: EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
- [2020165](/recalls/tc/2020165.md), 2020-04-16: Accessories
- [2019494](/recalls/tc/2019494.md), 2019-10-03: Accessories
- [2019205](/recalls/tc/2019205.md), 2019-04-26: Accessories

## Other bulletins for the same vehicles and component

- [22\-NA\-161](/bulletins/11023368.md), 2025-09-27, Service bulletin: ELECTRICAL SYSTEM; VISIBILITY/WIPER. This informational bulletin provides information for dealers/technicians on power folding mirrors do not fold at the same speed.
- [24\-NA\-046](/bulletins/11015605.md), 2025-03-13, Service bulletin: STRUCTURE:BODY; VISIBILITY/WIPER. This technical bulletin provides a procedure to correct the condition of Suction Cup Marks on Window Glass.
- [PIE0818](/bulletins/11015146.md), 2025-03-06, Service bulletin: STRUCTURE:BODY; VISIBILITY/WIPER. This engineering information \(EI\) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to the outside rearview mirror skull cap missing.
- [21\-NA\-043](/bulletins/11014230.md), 2025-02-12, Service bulletin: VISIBILITY/WIPER; SERVICE BRAKES; ENGINE; ELECTRICAL SYSTEM; WHEELS. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold \(prepping\) to the customer.
- [23\-NA\-167](/bulletins/11011946.md), 2024-12-18, Service bulletin: VISIBILITY/WIPER. This informational bulletin provides information on Outside Rear View Mirror Defog or Defrost Times Different for Passenger and Driver Mirrors.
- [PI0754G](/bulletins/11006511.md), 2024-08-17, Service bulletin: VISIBILITY/WIPER. This PI provides information on Rear and Side Tempered Glass Spots \(Quench Marks\) and that they are a normal characteristic.
- [23\-NA\-084](/bulletins/11006379.md), 2024-08-15, Service bulletin: BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING; VISIBILITY/WIPER; ELECTRICAL SYSTEM. This service bulletin provides repair information to correct a customer concern of a Blue Hourglass and No Gridlines on Radio Rear View Camera Display While in Reverse.
- [16\-NA\-342](/bulletins/11006284.md), 2024-08-13, Service bulletin: ELECTRICAL SYSTEM; VISIBILITY/WIPER. This service bulletin provides a procedure to check the rearview mirror coax connector for looseness by disconnecting and reconnecting the electrical connector to correct the customers concern for the rearview mirror video screen displaying blue.
- [16\-NA\-342](/bulletins/11004728.md), 2024-07-16, Service bulletin: ELECTRICAL SYSTEM; VISIBILITY/WIPER. This service bulletin provides a procedure to check the rearview mirror coax connector for looseness by disconnecting and reconnecting the electrical connector to correct the customers concern for the rearview mirror video screen displaying blue.
- [23\-NA\-064](/bulletins/10254014.md), 2024-05-02, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.

JSON: [/v1/bulletins/10204458](/v1/bulletins/10204458)

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