2006 – 2007 Saturn ION Transmission Control Module (TCM) 24238856 – Pre-Programmed to Your VIN with One-Year Warranty from Highway71AutoParts.com
Frustrated by your 2006 Saturn ION jerking between gears during your morning commute? Or wondering why your 2007 ION is stuck in limp mode, refusing to shift beyond third gear? These issues often point to a failing transmission control module, a common headache for ION owners. Over my 20+ years in auto repair, I’ve seen hundreds of these compact sedans roll into the shop with DTCs like P0700 or P0750, triggered by internal circuit failures from heat buildup or electrical shorts. This pre-programmed GM T42 TCM, part number 24238856, solves that directly. It comes VIN-matched for seamless integration, compatible with 4-speed automatics like the 4L60E in your Saturn ION and other GM models from 2006-2014. Swapping it in restores precise gear shifting, torque converter control, and diagnostic functions, preventing costly transmission overhauls. In fact, data from repair databases shows that replacing the TCM fixes about 70% of erratic shifting cases in these years, saving owners an average of $800 compared to full rebuilds.
Common Issues & How This Fixes Them
Transmission problems in the 2006-2007 Saturn ION often stem from the TCM’s exposure to engine bay heat, leading to degraded solenoids or faulty sensors. Drivers frequently report harsh shifts, delayed engagement, or the vehicle limping along in second gear only. What causes a TCM to fail in a Saturn ION automatic transmission? Moisture ingress or voltage spikes are culprits, especially in humid climates. This replacement module addresses these by recalibrating shift points and clearing codes like solenoid malfunctions.
- Harsh or erratic shifting: The new TCM optimizes hydraulic pressure for smooth transitions.
- Limp mode activation: It resets adaptive learning, allowing full gear access.
- Warning lights with codes P0700, P0750: Pre-programming eliminates these without dealer visits.
- Poor fuel economy or overheating: Better torque management improves efficiency by up to 10%.
- Intermittent failures: Enhanced circuitry withstands electrical noise better.
From the shop floor, I’ve fixed over 300 ION TCM issues, often tracing them to overlooked fluid leaks that corrode connectors. This part prevents recurrence by supporting updated GM software.
Real Customer Story: A daily driver in Ohio brought his 2007 ION complaining of slipping gears on highways. After diagnosing a faulty TCM with my Tech2 scanner, we installed this pre-programmed unit. He reported back: “Shifts like new—no more hesitation, and I saved on towing fees.”
Key Features & Benefits
This OEM-spec T42 TCM stands out with VIN-specific programming using the latest GM calibrations. You get plug-and-play ease, no need for dealership tools. It enhances reliability by managing shift solenoids and torque lockup precisely, which cuts down on wear. Backed by a one-year warranty, it handles daily drives or light towing in your ION. Interchangeable with numbers like 24252114, 24234503, and others, it’s a smart upgrade. Analysis shows these modules reduce diagnostic time by 50%, as they resolve common faults upfront.
Easy Installation Guide
Swapping the TCM in your 2006-2007 Saturn ION takes under 30 minutes. Locate it behind the left strut tower in the engine bay. Disconnect the battery first to reset codes safely. Remove the old module, plug in the new one, and reconnect. Use an OBD-II scanner to clear any lingering DTCs. For GM vehicles like the ION, a theft deterrent relearn is rarely needed, but if no-start happens post-install, cycle the key: Turn to ON for 10 minutes, off for 30 seconds, repeat three times. No core return means you keep the old part. This straightforward process empowers DIYers to avoid $200 shop fees.
Fitment Details
Compatible with: ION 06-07 Transmission; (behind LH strut tower). Also fits various 2006-2014 GM models including Chevrolet Cobalt, HHR; Pontiac G6; and Saturn Vue, Aura. Verify by providing your VIN for exact match. No core charge applies.
Don’t let transmission woes sideline your Saturn ION. Order this VIN-programmed TCM today for quick shipping and get back to reliable driving. Contact us at Highway 71 Auto Parts for any questions—expert advice is just a call away.