# Service bulletin SSM74547

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: 10165948
- Published by NHTSA: 2019\-10\-15
- Manufacturer's number: SSM74547
- Manufacturer's date: 2019\-09\-17
- NHTSA component: FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

## NHTSA's summary

Adaptive speed control not available, intelligent emergency braking not available, forward alert not available over 80km/h \(50mph\) is displayed on the Instrument Cluster \(IC\). Diagnostic Trouble Code \(DTC\) C1A67\-78 and/or C1A67\-54 are set in the Adaptive Speed Control Module \(ASCM\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10165948-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10165948-9999.pdf)

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

## Components

Driver assistance, Electrical system, Adaptive cruise control

## Trouble codes named

C1A67

## Vehicles listed

- 2019 to 2020 LAND ROVER DISCOVERY
- 2018 to 2020 LAND ROVER RANGE ROVER
- 2018 to 2020 LAND ROVER RANGE ROVER SPORT

## Other bulletins for the same vehicles and component

- [SSM74547Attachme](/bulletins/10165949.md), 2019-10-15, Service bulletin: ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING. Adaptive speed control not available, intelligent emergency braking not available, forward alert not available over 80km/h \(50mph\) is displayed on the Instrument Cluster \(IC\). Diagnostic Trouble Code \(DTC\) C1A67\-78 and/or C1A67\-54 are set in the Adaptive Speed Control Module \(ASCM\).
- [LTB01270NAS1](/bulletins/10157149.md), 2019-04-08, Service bulletin: SERVICE BRAKES; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL. A 'Driver Intervene' message may be intermittently displayed on the Instrument Cluster and the adaptive cruise control driver intervention system operates when not required, with unexpected braking at low speed. Upon further investigation, no related DTC \(Diagnostic Trouble Code\) will be stored.

JSON: [/v1/bulletins/10165948](/v1/bulletins/10165948)

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