# Service bulletin No. 174\-23

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: 10246460
- Published by NHTSA: 2023\-12\-08
- Manufacturer's number: No. 174\-23
- Manufacturer's date: 2023\-11\-29
- NHTSA component: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; EQUIPMENT

## NHTSA's summary

Technical information for little or no cooling power from air\-conditioning system

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10246460-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10246460-9999.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

- 2019 to 2024 PORSCHE CAYENNE
- 2024 PORSCHE CAYENNE COUPE
- 2019 to 2024 PORSCHE CAYENNE E\-HYBRID
- 2020 to 2022 PORSCHE CAYENNE GT
- 2021 to 2024 PORSCHE CAYENNE GTS
- 2019 to 2024 PORSCHE CAYENNE S
- 2024 PORSCHE CAYENNE S COUPE
- 2020 PORSCHE CAYENNE S E\-HYBRID
- 2019 to 2020 PORSCHE CAYENNE TURBO
- 2023 PORSCHE CAYENNE TURBO
- 2020 PORSCHE CAYENNE TURBO COUPE
- 2024 PORSCHE CAYENNE TURBO E\-HYBRID
- 2022 to 2024 PORSCHE CAYENNE TURBO GT
- 2019 to 2023 PORSCHE CAYENNE TURBO S E\-HYBRID
- 2020 PORSCHE CAYENNE TURBO S HYB COUPE
- 2019 to 2024 PORSCHE PANAMERA
- 2020 PORSCHE redundant CAYENNE E\-HYBRID

## Recalls for the same vehicles and component

- [2025716](/recalls/tc/2025716.md), 2025-12-19: Visual System
- [2023662](/recalls/tc/2023662.md), 2023-12-13: Accessories
- [19V111000](/recalls/nhtsa/19V111000.md), 2019-02-21: BACK OVER PREVENTION: SENSING SYSTEM: CAMERA; VISIBILITY:REARVIEW MIRRORS/DEVICES:INTERIOR

## Other bulletins for the same vehicles and component

- [No. 96\-26](/bulletins/11037849.md), 2026-10-02, Service bulletin: VISIBILITY/WIPER; STRUCTURE:BODY. Symptom\-based workshop manual for Noises from Front Wiper Blade
- [No. 68\-26](/bulletins/11037790.md), 2026-10-02, Service bulletin: STRUCTURE:BODY; VISIBILITY/WIPER. Technical Information for Wiper Arm Cover for Rear Window Wiper System Loose/Missing: Use the Cayenne Electric Wiper System
- [No. 43\-26](/bulletins/11037785.md), 2026-10-02, Warranty extension: VISIBILITY/WIPER; ELECTRICAL SYSTEM. Technical Information for Warranty Extension for Front Door Wiring Harness related to Real Top View \(RTV\) issues
- [No. 58\-26](/bulletins/11037048.md), 2026-09-04, Service bulletin: ELECTRICAL SYSTEM; VISIBILITY/WIPER. Symptom\-based workshop manual for Reversing Camera Spray Nozzle Not Working \- Dirty/Clogged/Air in the System
- [No. 80\-26](/bulletins/11036995.md), 2026-09-04, Service bulletin: VISIBILITY/WIPER; STRUCTURE:BODY. Symptom\-based workshop manual for Reworking Squeaking and/or Creaking Noises from the Panoramic Roof Area \- Roof Module and Roof Trim Panel
- [No. 2601.1](/bulletins/11033641.md), 2026-06-05, Service bulletin: VISIBILITY/WIPER; ELECTRICAL SYSTEM. Instructions on advanced technical information for G2.II Panamera \- Exclusive Design Taillight Faulty
- [No. 03\-26\-4](/bulletins/11033622.md), 2026-06-05, Service bulletin: VISIBILITY/WIPER; ELECTRICAL SYSTEM. Technical information for a Complaint Regarding the Camera View \(Real Top View\) in the PCM Central Display
- [No. 03\-26](/bulletins/11033618.md), 2026-06-05, Service bulletin: ELECTRICAL SYSTEM; VISIBILITY/WIPER. Technical information for a Complaint Regarding the Camera View \(Real Top View\) in the PCM Central Display
- [No. 37\-26](/bulletins/11032436.md), 2026-05-07, Service bulletin: ELECTRICAL SYSTEM; VISIBILITY/WIPER. Symptom based workshop manual for Information Messages Regarding Assistance System Failures, Fault Memory Entry: Implausible Chassis Number “C12B3F3” in the Assistance Systems Control Unit
- [No. 2601](/bulletins/11029158.md), 2026-03-02, Service bulletin: ELECTRICAL SYSTEM; VISIBILITY/WIPER. Instructions on advanced technical information for the Panamera \- exclusive design taillight faulty.

JSON: [/v1/bulletins/10246460](/v1/bulletins/10246460)

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