# Service bulletin B620615

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: 10147778
- Published by NHTSA: 2018\-11\-13
- Manufacturer's number: B620615
- Manufacturer's date: 2015\-10\-01
- NHTSA component: VEHICLE SPEED CONTROL:CRUISE CONTROL

## NHTSA's summary

"Active Cruise Control will not engage. AFFECTED VEHICLES This Service Action involves F25 \(X3\) produced from December 9, 2010 to July 31, 2012. Vehicles which require this Service Action to be completed will show it as ""Open"" when checked either in the ""Service Menu"" of DCSnet \(Dealer Communication System\) or with the Key Reader."

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2015/MC-10147778-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2015/MC-10147778-0001.pdf)

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

## Components

Throttle and cruise control

## Vehicles listed

- 2011 to 2013 BMW X3

## Other bulletins for the same vehicles and component

- [B660916](/bulletins/10151333.md), 2018-12-10, Service bulletin: VEHICLE SPEED CONTROL:CRUISE CONTROL; EQUIPMENT; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL. """Collision Warning Failed"" or ""Pedestrian Warning Failed"" CCM Display. While driving, a Check Control Message \(CCM\) is displayed advising of the following: Front collision warning failed Pedestrian detection failed The following fault code is stored in the KAFAS \(Camera\-based Driver Assistance System\): 0X800AC4 \- Camera calibration failed The KAFAS camera is not properly mounted and secured to the mounting bracket on the windshield; And/ or: The mounting bracket glued to the windshield is not installed correctly. The pictures below show both incorrect and correct installation. This picture shows the KAFAS camera installed in the bracket. Notice the spacing highlighted by the ""green lines"""
- [122112](/bulletins/10150365.md), 2018-12-03, Service bulletin: VEHICLE SPEED CONTROL. "N51, N52K and N52T: Idle Fluctuation During Engine Warm\-up Phase. After a cold engine start, the idle speed may be unstable or start fluctuating up and down slightly while the vehicle is stopped. On vehicles with automatic transmissions, roughness or shuddering may be felt during this warm\-up period when diving away slowly in ""D"" or in ""R"" without depressing the accelerator pedal. No relevant errors are stored in the DME fault code memory, and these symptoms are no longer present once the engine is at operating temperature \(\> 90C\). Unfavorable DME software"
- [120915](/bulletins/10147599.md), 2018-11-13, Service bulletin: VEHICLE SPEED CONTROL; VEHICLE SPEED CONTROL:ACCELERATOR PEDAL. "SUBJECT N55: Slight Surging at Constant Speeds when Accelerating Very Lightly. The vehicle shudders or surges slightly while driving at constant speeds and applying the accelerator very lightly. This symptom is most easily reproduced under light loads when the current fuel consumption is approximately 3448 miles per gallon. The current fuel consumption can selected and monitored in the instrument cluster while driving \(the ""fuel consumption, current"" option is set to active in the settings menu\). No relevant fault will be stored in the DME memory. DME software; the fuel injection rate under these conditions is too close to the minimum calculated threshold."
- [B090315](/bulletins/10146941.md), 2018-11-05, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; VEHICLE SPEED CONTROL:CRUISE CONTROL. "Cruise Control does not Operate after Programming with ISTA/P 3.56.x. After programming the vehicle with ISTA/P 3.56.x \(integration level F025\-15\-07\-50x\), cruise control cannot be activated. If the customer tries to activate cruise control, a Check Control message ""System cannot be activated"" is displayed. CAUSE This is caused by a software error in ISTA/P 3.56.x and is planned to be resolved with ISTA/P 3.56.2."

JSON: [/v1/bulletins/10147778](/v1/bulletins/10147778)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20B620615&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10147778&vehicle=Service%20bulletin%20B620615)