# Service bulletin TSB\-91\-13\-78

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: 10051840
- Published by NHTSA: 2013\-04\-15
- Manufacturer's number: TSB\-91\-13\-78
- Manufacturer's date: 2013\-03\-15
- NHTSA component: VEHICLE SPEED CONTROL:CRUISE CONTROL; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING; SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR; EQUIPMENT; EQUIPMENT:ELECTRICAL; EQUIPMENT ADAPTIVE/MOBILITY

## NHTSA's summary

AUDI: THE FIELD OF VISION OF RADAR SENSOR\(S\) ARE BLOCKED, THIS IS DUE TO LEAVES, SNOW, WATER SPRAY, OR DIRT, CAUSING DEACTIVATION OF RADAR SENSORS, IF NO OBJECTS ARE DETECTED FOR EXTENDED DURATION. MODEL 2011\-2014 A6, A7, A8. \*PE

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Brakes, Equipment and accessories, Throttle and cruise control, Anti\-lock brakes, Wheel speed sensor

## Vehicles listed

- 2012 to 2013 AUDI A6
- 2012 to 2013 AUDI A7
- 2011 to 2013 AUDI A8

## Other bulletins for the same vehicles and component

- [A4523362072304\_1](/bulletins/10247205.md), 2024-01-04, Service bulletin: UNKNOWN OR OTHER; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT; ELECTRICAL SYSTEM:ADAS:HILL DESCENT ASSIST:SENSOR. This bulletin provides information for when the ABS/ESC speed sensor has an implausible signal.
- [A4623452070679\_1](/bulletins/10238235.md), 2023-07-10, Service bulletin: SERVICE BRAKES, AIR:ANTILOCK. This bulletin provides information for when one or more DC is stored in the ABS control unit related to the parking switch; DTC C100C07 and/or C100C29.

JSON: [/v1/bulletins/10051840](/v1/bulletins/10051840)

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