KA-01466

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Document Information
Location: Transmission/Powertrain
Topic: Transmission dropping into neutral
Condition: Intermittent
Diagnostic Trouble Codes: N/A
Measure
When handling a customer concern of the transmission dropping into neutral when slowing
down or stopping the vehicle, it is necessary to ensure the engine is in good health as well as
inspecting the air intake system to ensure an air leak is not present.
In the first instance an intake path pressure test should be carried out. This test can be found
under the "Air Intake Section" within SIS.
When looking for air leaks pay particular attention to the components including and after the
air flow meters. An air leak after the air flow meters will allow unmetered air into the intake
system, potentially resulting in the transmission dropping into neutral.
If you are unable to find an air leak and the transmission continues to drop into neutral, please
raise a Technical Request attaching the transmission diagnoses checklist found in KA-01067.
Parts Information
N/A
Attachments
N/A
KA Update Information
02/02/2022 - First Release
This document is uncontrolled when printed. Before use, check the Knowledge Base
within the McLaren Retailer Portal to verify that this is the current version.