# Service bulletin PIE0643

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: 10200171
- Published by NHTSA: 2021\-08\-09
- Manufacturer's number: PIE0643
- Manufacturer's date: 2021\-06\-01
- NHTSA component: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

## NHTSA's summary

This engineering information \(EI\) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Malfunction Indicator Lamp \(MIL\) illuminated on Driver Information Center \(DIC\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10200171-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10200171-9999.pdf)

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

## Components

Electrical system, Instrument cluster

## Vehicles listed

- 2021 BUICK ENVISION
- 2020 to 2021 CADILLAC CT4
- 2020 to 2021 CADILLAC CT5
- 2021 CADILLAC ESCALADE ESV
- 2021 CADILLAC ESCALADE NA
- 2020 to 2021 CHEVROLET CORVETTE
- 2021 CHEVROLET SUBURBAN
- 2021 CHEVROLET TAHOE
- 2021 GMC YUKON
- 2021 GMC YUKON XL

## Recalls for the same vehicles and component

- [20V790000](/recalls/nhtsa/20V790000.md), 2020-12-17: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

## Other bulletins for the same vehicles and component

- [PIT5851D](/bulletins/10249267.md), 2024-01-29, Service bulletin: ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER. This Preliminary information communicates an issues with the odometer being incorrect after a programming event and how the dealership can resolve the issue.
- [07\-08\-49\-020R](/bulletins/10244214.md), 2023-10-18, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT; ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER. This informational bulletin provides information for the IPC odometer programming method quick reference guide.
- [PIT5851B](/bulletins/10227654.md), 2022-12-12, Service bulletin: ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER. This Preliminary information communicates an issues with the odometer being incorrect after a programming event and how the dealership can resolve the issue.
- [PIT5195G](/bulletins/10213796.md), 2022-06-13, Service bulletin: ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER. This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate. Dealer should advise the customer the specification for speedometer needle accuracy is \+/\- 2 MPH at any given speed when looking straight at the needle.
- [22\-NA\-113](/bulletins/10213525.md), 2022-06-06, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM. This service bulletin provides repair information to correct a customer concern of Head Up Display \(HUD\) Blank, Non\-Responsive to Brightness, Aim, or Page Controls, DTC U0158 Set.
- [PIT5902A](/bulletins/10210346.md), 2022-04-18, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This Preliminary information communicates an issues where the fuel filter life can not be reset in the radio display and dealers are to reprogram the IPC with updated cals to correct the issue.
- [PIT5902](/bulletins/10210337.md), 2022-04-18, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT. This Preliminary information communicates an issues where the fuel filter life can not be reset in the radio display and engineering is working on a fix.
- [PIT5837A](/bulletins/10208073.md), 2022-02-14, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This Preliminary information communicates an issues with false codes setting in vehicles due to timing issues between the modules.
- [PIT5851](/bulletins/10202388.md), 2021-10-25, Service bulletin: ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER. This Preliminary information communicates an issues with the odometer being incorrect after a programming event and how the dealership can resolve the issue.
- [PIE0636A](/bulletins/10200168.md), 2021-08-09, Service bulletin: EXTERIOR LIGHTING; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM. This engineering information \(EI\) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to Malfunction Indicator Lamp \(MIL\) Illuminated on Driver Information Center \(DIC\), DTCs P18E9, P18EA and/or P18EB Set.

JSON: [/v1/bulletins/10200171](/v1/bulletins/10200171)

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