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Technical Service Bulletin

91 Driver assist systems: intervention by active front assist - PPE/PPC

United States 444 Volkswagen of America, Inc. (6444)

[Status | Released for publishing

Release date [Jul 15, 2025

New customer code

Object of complaint Complaint type [Position|
assistance systems, comfort controls -> emergency braking function -> functionality -> too early
automatic emergency braking (Front Assist)

assistance systems, comfort controls -> emergency braking function -> functionality -> misfire
automatic partial braking (City-ANB) y

assistance systems, comfort controls -> emergency braking function -> functionality -> too late
automatic emergency braking (Front Assist) y

assistance systems, comfort controls -> emergency braking function -> | functionality -> unintentional
automatic partial braking (City-ANB) deployment

assistance systems, comfort controls -> emergency braking function -> functionality -> no deployment
automatic partial braking (City-ANB) y Ploy’
assistance systems, comfort controls -> emergency braking function -> A fy .
automatic partial braking (City-ANB) functionality -> no function
assistance systems, comfort controls -> emergency braking function -> ; .

automatic emergency braking (Front Assist) functionality -> no deployment
assistance systems, comfort controls -> emergency braking function -> | functionality -> operation
automatic partial braking (City-ANB) sequence incorrect
assistance systems, comfort controls -> emergency braking function -> | functionality -> activates
automatic emergency braking (Front Assist) without cause

assistance systems, comfort controls -> emergency braking function -> functionality -> fault
automatic emergency braking (Front Assist) y y
assistance systems, comfort controls -> emergency braking function -> | functionality -> activates
automatic partial braking (City-ANB) without cause

assistance systems, comfort controls -> emergency braking function -> A fy

automatic partial braking (City-ANB) functionality -> faulty
assistance systems, comfort controls -> emergency braking function -> functionality -> no function
automatic emergency braking (Front Assist)

assistance systems, comfort controls -> emergency braking function -> | functionality -> unintentional
automatic emergency braking (Front Assist) deployment

Vehicle data

Sales types

jrusfaozsfa
2osfa fT
zosfa |
2osfa TT
Documents

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Technical Service Bulletin Transaction No.: 2076135/2
91 Driver assist systems: intervention by active front assist - PPE/PPC Release date: Jul 15, 2025
Condition

REVISION HISTORY

revision ose euros

04/24/2025 | Revised header (updated model years)

11/26/2024 | Initial publication

Customer states:

+ The front assist is intervening.

The symbol shown below (Figure 1) is displayed if one of the following actions is initiated:

+ Collision warning.

+ Brake jolt.

+ Automatic brake pressure increase.

+ Automatic brake intervention.

Figure 1: Front assist icon displayed on the instrument cluster or the MMI.

The symbol shown below (Figure 2) is displayed if the swerve assist is active.

Figure 2: Swerve assist activation icon.

Technical Background

Refer to the “Active front assist” chapter of the Owner's Manual and self-study program 687 — Audi Q6 e-tron (type
GF).
Production Solution
Not applicable.
Service
This bulletin may apply to vehicles still within the new model launch repair authorization period!
— For vehicles still in the launch phase, the workshop must create a case with the Technical Assistance
Center (TAC) per the repair authorization. Reference the TSB in the first line of the TAC case.
You can use the “Active front assist” test program to call up the intervention history and display it in ODIS-S. The
test program can be found under:

+ Test plan > Select self-test > Diagnostic capable system > O0A5 - Front sensors for driver assistant systems —

R242 > 00A5 - Technical Service Bulletin (TSB) > Active front assist
The test program asks you to enter the date of the intervention. The test program then checks whether active front
assist interventions took place in the period between three days before and three days after the date entered. At the
end, the program provides a list of the interventions during this period.
In the table below, you will find an overview of the various intervention-types and their explanations:

Result of the ODIS test | Explanation

program “Active front

assist”

Preliminary warning If a possible collision risk is detected, the driver is made aware of the danger by a
visual and acoustic warning.

Main warning If there is an immediate risk of a collision, an acute warning may be issued in the form
of a short brake jolt. The only ways of avoiding the collision may be for the driver to
take evasive action or to brake hard.

RAB Reaction time-increasing automatic braking (RAB):

Early initiation of partial braking increases the time until the impending collision and
thus gives the driver more time to react appropriately. The driver is also made aware of
a dangerous situation and the speed of impact is reduced in the event of a possible
collision.

DAB Deescalating automatic braking (DAB):

In situations where a collision can only be avoided by braking immediately, automatic
braking is performed. This helps to avoid accidents or reduces their severity.

AFB Automatic braking to a stop (AFB):

In critical situations at intersections, when driving away from a standstill and at low
speeds, the vehicle is automatically braked to a stop to prevent a collision with
oncoming vehicles in the adjacent lane or vehicles/cyclists crossing the vehicle’s path.

FZB Driver-triggered controlled braking (FZB):

In critical situations, the braking force applied by the driver is increased so that a
collision is avoided, if possible. This sub-function assists drivers who do not brake
sufficiently in critical situations.
AWU Swerve support (AWU):
Swerve support is a corrective steering function which can assist the driver for a limited
time within the system limits when there is a risk of a frontal collision with stationary or
oncoming road users or road users moving in the same direction. To do this, the
system continuously determines the current collision risk. If the driver makes a clear
steering movement when there is an acute collision risk, the system checks whether it
is possible to avoid the collision by swerving in the direction specified by the driver's
steering movement. If there is sufficient space to swerve and thus to avoid a collision,
the system assists the driver in performing the evasive maneuver they initiated by
providing steering assistance; the system may also perform targeted braking of
individual wheels. In addition to this, partial braking to reduce the vehicle’s speed may
also be performed during the evasive maneuver. The driver can override the
assistance provided by the swerve support at any time.
ANA Automatic emergency swerve (ANA):
Automatic emergency swerve is a corrective steering function which can assist the
driver for a limited time within the system limits with a collision-avoiding steering
intervention when there is a risk of a frontal collision with stationary road users or road
users moving in the same direction. To do this, the system continuously determines the
current collision risk. The system checks whether it is possible to avoid the collision by
performing an automatic evasive maneuver. If there is sufficient space to swerve and
thus to avoid a collision, the system performs an evasive maneuver in the form of a
steering intervention; the system may also perform targeted braking of individual
wheels. In addition to this, partial braking to reduce the vehicle’s speed may also be
performed during the evasive maneuver. The driver can override the intervention by
the emergency swerve function at any time.
Warranty
Claim Type: + Ifthe vehicle is outside of any warranty, this Technical Service Bulletin is
informational only.
Damage Code: 0039
Labor Operations: GFF 0150 0060 Time stated on the
diagnostic protocol
GFF 0150 0010 See SRT with
associated
operations
Claim Comment: As per TSB 2076135/2
All warranty claims submitted for payment must be in accordance with the Audi Warranty Policies and Procedures
Manual. Claims are subject to review or audit by Audi Warranty.
Additional Information
All part and service references provided in this TSB (2076135) are subject to change and/or removal. Always check
with your Parts Department and/or ETKA for the latest information and parts bulletins. Please check the Repair
Manual for fasteners, bolts, nuts, and screws that require replacement during the repair.

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