# Service bulletin SSM74334

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: 10158984
- Published by NHTSA: 2019\-04\-22
- Manufacturer's number: SSM74334
- Manufacturer's date: 2019\-03\-14
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:APPLIANCE:AIR CONDITIONER

## NHTSA's summary

HVAC software update causes Auxiliary Climate Control to stop producing cold air \- rear refrigerant valve is not opened. Applicable to 18 MY and 19 MY vehicles only.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10158984-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10158984-9999.pdf)

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

## Components

Electrical system, Equipment and accessories, Heating and air conditioning, Software

## Vehicles listed

- 2018 to 2019 LAND ROVER RANGE ROVER
- 2018 to 2019 LAND ROVER RANGE ROVER SPORT

## Other bulletins for the same vehicles and component

- [SSM71360](/bulletins/10206635.md), 2022-01-18, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Software Update.
- [SSM70258](/bulletins/10206633.md), 2022-01-18, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Software Update.
- [LTB00619NAS1](/bulletins/10204785.md), 2021-12-13, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Technical Bulletin: Unable To Release Valet Mode Upon Correct PIN Entry onwards
- [SFCC\_NOV2021\_25](/bulletins/10204122.md), 2021-12-07, Service bulletin: EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM\(GLOBAL POSITIONING SYSTEM\). Post 21A Update Apple CarPlay® Navigation Voice Guidance Not Heard
- [BIG5MAR21\_46](/bulletins/10189974.md), 2021-04-06, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE; ENGINE. Engine stumbles, misfires and rough running at idle with a potential MIL illumination.
- [JLRTB02056NAS1](/bulletins/10182150.md), 2020-11-06, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. The Malfunction Indicator Lamp \(MIL\) is illuminated on the Instrument Panel Cluster \(IPC\)with no other effects on vehicle operation.
- [SFCC Jul20\_26](/bulletins/10178159.md), 2020-08-07, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. 20B Software Delay until July 15th Software was delayed to include software fix for L551 APIX cable issue Audio popping noise iOS13 Bluetooth improvements Additional improvements
- [NAS20.05.002\_2](/bulletins/10177146.md), 2020-07-08, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. A potential issue has been identified on a limited number of Land Rover vehicles within the listed Affected Vehicle which require a Powertrain Control Module \(PCM\) software update.
- [NAS20.05.002](/bulletins/10175606.md), 2020-05-29, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM:SOFTWARE. A potential issue has been identified on a limited number of Land Rover vehicles within the listed Affected Vehicle which require a Powertrain Control Module \(PCM\) software update.
- [N456NAS1](/bulletins/10175605.md), 2020-05-29, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). A potential issue has been identified on certain Land Rover vehicles within the listed Affected Vehicle Range which require a Powertrain Control Module \(PCM\) software update.

JSON: [/v1/bulletins/10158984](/v1/bulletins/10158984)

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