Note: No updates exist past 21.4 for the Solus Ultra. You will not be able to get 22.4, 23.4, or newer versions on this hardware.

: Includes data for approximately 40 vehicle makes, covering most domestic, Asian, and European models up to the 2021 model year.

The software update was the final software release for this specific diagnostic platform. Snap-on officially discontinued software support for the Solus Ultra after this version was released in late 2021. Key Update Information

For technicians dedicated to the robust, dependable platform of the Solus Ultra, the is a necessary investment. It brings modern vehicle coverage and deeper repair insights to a familiar tool, keeping your shop efficient and profitable.

The is a highly sought-after firmware and scanner database upgrade that expands vehicle coverage, introduces custom PID optimization, and updates multi-system diagnostic capabilities. For professional technicians and shop owners, keeping this full-function diagnostic platform current is vital to maintain high efficiency and capture revenue from newer domestic, Asian, and European car models.

The Snap-on SOLUS Ultra 21.4 update is significant because it is the final software release

To get the most out of your SOLUS Ultra, keeping its software up to date is critical. Snap-on offers several purchase options for software upgrades to fit different needs and budgets.

While this is slightly older software (current versions are in the 23.x range), v21.4 is a very stable build that covers most domestic, Asian, and European vehicles up to the 2021 model year.

: The core scanner engine improves its multi-system code scans, labeling critical data benchmarks for systematic pre- and post-repair vehicle auditing. Key Benefits for Automotive Technicians Benefit Area What the 21.4 Update Delivers Broader Vehicle Reach

Version 21.4 represents the last official software support for the Solus Ultra , marking its transition to legacy status.

Install:

The 21.4 software maximizes the internal storage limits of the device, cementing OEM-specific diagnostics across . It ensures deep system interaction with core components including:

This article is based on publicly available information about the Snap‑on Solus Ultra platform as of 2026. Always consult your Snap‑on representative or official documentation for the latest software and update procedures.

Rather than simply acting as a code reader, 21.4 arms the SOLUS Ultra with advanced, hardware-allowable command subroutines. It introduces Engine Special Functions for late-model Alfa Romeo® configurations (such as the Giulia and Stelvio), complex Rear-Axle Slip-Angle Control and Brake Flush protocols for BMW®, and vital anti-lock braking system (ABS), electric power steering, and tire pressure monitoring system (TPMS) relearns for Jeep® platforms. 3. Historical Back-Coverage Optimizations