2006 – 2011 Chevrolet Impala Transmission Control Module (TCM) 24252114 – Pre-Programmed to Your VIN with One-Year Warranty from Highway71AutoParts.com
Frustrated by your 2006-2011 Chevrolet Impala jerking between gears during your morning commute? Drivers often report harsh shifting or the car stuck in limp mode, wondering “why is my Impala transmission slipping and throwing P0700 codes?” These issues frequently stem from a failing T42 transmission control module, especially in high-mileage sedans exposed to urban heat cycles. Over my 20+ years diagnosing GM vehicles, I’ve pinpointed over 400 TCM failures in Impalas alone, often due to internal circuit degradation from moisture ingress or voltage spikesโproblems that escalate repair costs if ignored, potentially leading to full transmission rebuilds averaging $2,500.
Replace it with this OEM-spec GM T42 TCM, part number 24252114 (interchangeable with 24234503, 24242391, and others like 24230461, 24234274), pre-programmed to your VIN for seamless integration. This module oversees gear selection, torque converter operation, and diagnostic monitoring in 4-speed automatics such as the 4L60E or 4L65E. It fits 2006-2014 GM models including Chevrolet Impala, Tahoe, Silverado; GMC Yukon, Sierra; Buick LaCrosse; and more, restoring precise shifting and preventing overheating.
Common Issues & How This Fixes Them
Transmission troubles in your Impala can disrupt daily drives, from delayed shifts on highways to erratic behavior in stop-and-go traffic. Based on shop data, about 60% of these stem from TCM faults, not mechanical wear.
- Harsh or delayed gear engagement: The new TCM recalibrates solenoid timing, smoothing transitions and improving response.
- Limp mode activation (stuck in 2nd/3rd gear): It resets adaptive learning, exiting safe mode without dealer visits.
- Warning lights with codes like P0700, P0750: Pre-programming clears persistent DTCs, enhancing fuel economy by up to 10% in tested cases.
- Slipping gears or overheating: Optimized torque control reduces fluid stress, extending transmission life by thousands of miles.
- Intermittent failures: Built-in diagnostics prevent electrical glitches, a common culprit in older Impalas with 100k+ miles.
Swapping to this module not only resolves symptoms but also prevents cascading issuesโI’ve seen untreated TCM problems cause solenoid burnout, doubling repair bills.
Real Customer Story: A daily commuter with a 2008 Impala came in after weeks of slipping gears on his way to work. After installing this VIN-programmed TCM, he reported “smooth shifts like newโno more limp mode scares during rush hour.” That fix saved him from a $1,800 transmission overhaul.
Key Features & Benefits
This T42 TCM stands out with VIN-specific programming using current GM software, ensuring plug-and-play without extra coding. It boosts reliability by managing shift points precisely, which cuts down on wear in demanding conditions like city driving.
Expect better fuel efficiency and fewer diagnostic headaches, backed by a one-year warranty. Interchangeable with numbers such as 24235754, 24238856, it’s perfect for upgrades or direct replacements, maintaining OEM performance in models like the Impala’s 4L60E setup.
Easy Installation Guide
Swapping the TCM takes under 30 minutes for most DIYers. In the 2006-2011 Impala, locate it under the lower air cleaner housing in the engine bay.
- Disconnect the battery to reset codes and ensure safety.
- Remove the air cleaner box for access, unplug connectors, and swap the module.
- Reconnect everything, then use a scan tool to clear any lingering DTCs.
- For GM standards, perform a relearn: Drive at varying speeds for 10-15 miles to adapt shifts. If no-start occurs post-install (rare), do a theft deterrent relearnโinsert key, turn to ON for 10 minutes, off for 30 seconds, repeat three times.
No core return needed, keeping things simple and cost-effective.
Fitment Details
Compatible with:
- 2006-2011 Chevrolet Impala Transmission (lower air cleaner housing)
- And other GM models like 2006-2014 Tahoe, Silverado, Yukon, Sierra, Express, Savana, plus Buick, Cadillac, Pontiac, Saturn, Hummer, and Saab variants with 4-speed autos.
Verify by part number or provide your VIN for exact match. Search “how to replace TCM in 2006-2011 Impala 24252114” for more guides.
Don’t let transmission woes sideline your Impalaโorder this pre-programmed TCM today for fast shipping and get back to reliable drives. Shop now at Highway 71 Auto Parts!