Gear Shift Indicators (GSI)

The EU Commission has published Regulation 65/2012 on Gear Shift Indicators. This implements Article 11 of the General Safety Regulation 661/2009.

Purpose: GSI inform the driver when to change gear to minimise fuel consumption, thereby encouraging drivers to adopt a fuel efficient driving style and reducing both fuel consumption and CO2 emissions in real world driving.

Applicability: M1 vehicles with a reference mass not exceeding 2610 kg and fitted with a manual gearbox.

The regulation defines ‘manual gearbox’ as any gearbox that has a manual mode that can shift between gears as an immediate consequence of an action from the driver.

Visual Characteristics: The GSI must have a clear visual display to indicate to the driver which gear to shift to. This may be complimented by an audible indication. The display must not mask the identity of any other tell tales.

Functional Characteristics: The GSI shall suggest changing the gear when the fuel consumption with the suggested gear is estimated to be lower than the current one selected.

The regulation contains a test procedure which is used to determine the fuel economy impact of the GSI shift points.

Timing: The regulations applies from 1st November 2012 for new types and 1st November 2014 for all registrations.


One thought on “Gear Shift Indicators (GSI)

  1. Rich,

    Interestingly GSI does not give the manufacturer any opportunity to re-test any particular vehicle variant/version using the GSI shift points to then be able to claim that as his official fuel economy data! Will require a change to Reg 83 and 115 to make that happen.

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