2026 Tank 300 Tank Turn Unavailable: Record Crawl Control and Rear Differential Lock Status

When Tank Turn appears on the display but does not activate off road, do not immediately describe the issue as “failed rear-wheel steering”. The Mexican 2026 Tank 300 Luxury has this turning assistance function, and its handbook lists prerequisites. Recording them helps avoid ordering rear-wheel steering hardware that the material has not confirmed.

The function appears in the Crawl Control chapter

The equipment sheet calls it Tank Turn. The handbook's Crawl Control chapter describes turning assistance that can help reduce the turning radius. [T04][T12] This does not explain rear-wheel steering hardware construction, and the function name alone cannot generate a steering actuator purchase list.

The handbook's activation conditions include Crawl Control being in the relevant operating state and the electronically controlled rear differential lock being unlocked. It also describes steering-position and pedal-state requirements. [T12] Record the function state, differential-lock indication and on-screen messages at the time for a repairer familiar with this vehicle to check.

Checking prerequisites does not complete diagnosis

An unmet prerequisite may explain why a particular attempt did not activate the function, but it cannot establish that no other fault exists. Do not repeatedly try it on public roads or unsuitable surfaces, or force operation outside the instructions. Any subsequent replacement still requires relevant diagnostic evidence.

Scope and verification

This article is limited to Mexico; MY26; GWM TANK 300; Luxury 2.0T HEV. [Model year and trim basis][T01] Factory equipment information identifies functions and parts; it is not a fault or replacement criterion. The handbook describes operating conditions only for functions separately confirmed by the manufacturer for this trim; it does not establish applicability to other markets or optional equipment. [Applicable handbook listing][T18]

No public data were available in the reviewed material for OE numbers, repair parameters, separate parts availability or compatibility and interchangeability. [To be verified] Compatibility or interchangeability must be checked using the vehicle identification number (VIN) and the local factory parts catalogue in Mexico.

For parts discussed here, use the parts enquiry page.

[T01]: https://www.gwm-mx.com/content/dam/gwm/pages/mx/es/pdf/Legales_Oferta_comercial_abril2026.pdf
[T04]: https://www.gwm-mx.com/content/dam/gwm/pages/mx/es/pdf/fichas/gwm-tank300-ficha-tecnica-2026.pdf
[T12]: https://www.gwm-mx.com/content/dam/gwm/pages/language-masters/es/owner/support/user-manuales/ManualUsuarioTank.pdf
[T18]: https://www.gwm-mx.com/es/owner/support/manual-tank-300