# Service bulletin PIC6433A

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: 10211759
- Published by NHTSA: 2022\-05\-16
- Manufacturer's number: PIC6433A
- Manufacturer's date: 2022\-04\-07
- NHTSA component: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:IGNITION:ANTI\-THEFT:CONTROL MODULE

## NHTSA's summary

This Preliminary information communicates that a service theft deterrent message may display with no DTC's. OnStar turned off the ECM read request to prevent re\-occurrence.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10211759-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10211759-9999.pdf)

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

## Components

Electrical system, Ignition

## Vehicles listed

- 2021 CADILLAC CT4
- 2021 CADILLAC CT5

## Other bulletins for the same vehicles and component

- [PIC5650K](/bulletins/10237659.md), 2023-06-13, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM:IGNITION. This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this concern. If unable to duplicate the concern ask if the customer uses any Radio Frequency Identification Devices when the concern is present. Dealer should also direct their customers to the appropriate section in the Owner manuals that references that the device complies.
- [21\-NA\-244](/bulletins/10231404.md), 2023-02-07, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:IGNITION:ANTI\-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. This service bulletin provides a repair procedure to correct a customer concern of a No Fob detected message on Driver Information Center \(DIC\) and/or No Crank / No Start condition.
- [21NA147](/bulletins/10200146.md), 2021-08-09, Service bulletin: ELECTRICAL SYSTEM:IGNITION:COIL:SPARK PLUGS; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ENGINE AND ENGINE COOLING. This service bulletin provides a repair procedure to correct a customer concern of Coolant and/or Oil Leak, Malfunction Indicator Lamp \(MIL\) Illuminated?.
- [21NA068](/bulletins/10192034.md), 2021-05-10, Service bulletin: ELECTRICAL SYSTEM:IGNITION:ANTI\-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. This warranty administration bulletin provides policy information requirements applicable to key fob replacement under the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2021 and newer model year vehicles with RPO ATH \(U.S. Only\).
- [21NA061](/bulletins/10192031.md), 2021-05-10, Service bulletin: ELECTRICAL SYSTEM:IGNITION:ANTI\-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. This service bulletin provides information for dealers on Using EL\-52545 When Diagnosing PEPs Transmitter Key Fobs \(North America ONLY\).

JSON: [/v1/bulletins/10211759](/v1/bulletins/10211759)

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