# Service bulletin A531302 2034404\-

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: 10124513
- Published by NHTSA: 2017\-12\-05
- Manufacturer's number: A531302 2034404\-
- Manufacturer's date: 2013\-07\-11
- NHTSA component: ELECTRICAL SYSTEM; PARKING BRAKE

## NHTSA's summary

Customer may report that the vehicle does not start due to a discharged battery. DTC U101100 \(supply voltage too low\) is stored in the gateway, J533 \(address word 19\), and/or the electronic parking brake \(EPB\) control module, J540 \(address word 53\). According to the test plan "19\-Read Data Bus Keep\-Awake Manager", the EPB control module kept the data bus active for prolonged periods of time. The EPB switch appears to be permanently operating \(applying or releasing the parking brake\) due to an internal mechanical issue or because it is jammed or blocked by debris or by a foreign object. Test plan "19\-Read Data Bus Keep\-Awake Manager", identifies the EPB control module as keeping the data bus active for prolonged periods of time.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2013/MC-10124513-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2013/MC-10124513-0001.pdf)

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

## Components

Brakes, Electrical system, Parking brake

## Trouble codes named

U1011

## Vehicles listed

- 2013 AUDI A4 ALLROAD
- 2013 AUDI A5
- 2012 to 2013 AUDI A6
- 2012 to 2013 AUDI A7
- 2011 to 2013 AUDI A8
- 2013 AUDI Q5
- 2013 AUDI S4
- 2013 AUDI S5

## Other bulletins for the same vehicles and component

- [46148420311353](/bulletins/10250961.md), 2024-03-04, Service bulletin: PARKING BRAKE. Yellow warning light for electric parking brake on, ACC inoperative once
- [4612262031135](/bulletins/10250479.md), 2024-02-20, Service bulletin: AIR BAGS; PARKING BRAKE; LANE DEPARTURE. Yellow warning light for electric parking brake on, ACC inoperative once
- [Update97Y7](/bulletins/10249089.md), 2024-01-22, Service bulletin: UNKNOWN OR OTHER; PARKING BRAKE:CONVENTIONAL:MECHANICAL. Vehicle Departure Deactivation and EPB
- [00135120318504](/bulletins/10228291.md), 2023-01-03, Service bulletin: PARKING BRAKE; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Customer complains of one or both of the following: \-Engine and ignition shut off when driver?s door is opened. \-Electronic Parking Brake \(EPB\) activates when driver?s door is opened \(A6/A7/S6/S7 only\)
- [00134620318503](/bulletins/10228286.md), 2023-01-03, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; PARKING BRAKE. Customer complains of one or both of the following: \-Engine and ignition shut off when driver?s door is opened. \-Electronic Parking Brake \(EPB\) activates when driver?s door is opened \(A6/A7/S6/S7 only\) \-00 software version management for all audi 2002 and on
- [00135120318504](/bulletins/10224970.md), 2022-10-31, Service bulletin: PARKING BRAKE; ELECTRICAL SYSTEM; STRUCTURE:BODY:DOOR; ENGINE AND ENGINE COOLING. Customer complains of one or both of the following: \-Engine and ignition shut off when driver?s door is opened. \-Electronic Parking Brake \(EPB\) activates when driver?s door is opened \(A6/A7/S6/S7 only\)
- [00134620318503](/bulletins/10224965.md), 2022-10-31, Service bulletin: ELECTRICAL SYSTEM; PARKING BRAKE. Customer complains of one or both of the following: \-Engine and ignition shut off when driver?s door is opened. \-Electronic Parking Brake \(EPB\) activates when driver?s door is opened \(A6/A7/S6/S7 only\) \-00 software version management for all audi 2002 and on
- [27 13 20 2033524](/bulletins/10210617.md), 2022-05-02, Service bulletin: PARKING BRAKE. Incorrect tolerances of cruise control ?Set? button. Cruise control deactivates sporadically or cannot be activated. A new set speed cannot be saved. ?Set? button on cruise control stalk does not work.
- [27 13 17 2033524](/bulletins/10210614.md), 2022-05-02, Service bulletin: PARKING BRAKE. Incorrect tolerances of cruise control ?Set? button. Cruise control deactivates sporadically or cannot be activated. A new set speed cannot be saved. ?Set? button on cruise control stalk does not work.
- [A9121642024323\_7](/bulletins/10186569.md), 2021-02-04, Service bulletin: PARKING BRAKE:ELECTRICAL:CONTROL MODULE. This bulletin contains technical information regarding when the parking aid sporadically warns of obstacles that don't exist or it is inoperative/constant warning.

JSON: [/v1/bulletins/10124513](/v1/bulletins/10124513)

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