9-Speed Automatic Transmission Assembly for 2020-2023 Chevrolet Blazer
Product Notes Read before buying
This is a 9-speed automatic transmission for All-Wheel Drive (AWD) models equipped with the 2.0L turbocharged engine only. It will not fit Front-Wheel Drive (FWD) vehicles or models with the 2.5L or 3.6L engine.
Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.
Vehicle Fitment Guide
This part fits the following vehicles:
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| LT | SUV | 2020 - 2022 | L4 2.0L Turbo | AWD | Automatic |
| Premier | SUV | 2021 - 2022 | L4 2.0L Turbo | AWD | Automatic |
| True North | SUV | 2021 | L4 2.0L Turbo | AWD | Automatic |
| 2023 |
Know This Transmission Before You Buy
The research behind our purchase interview — recalls, bulletins and real install economics for this transmission family:
A quick look at your own vehicle makes sure the right transmission shows up:
- Verify RPO code on the driver's door B-pillar QR code label (confirm M3T or M3D/M3E/M3H as applicable).
- Confirm engine is the 2.0L Turbocharged 4-cylinder (LSY) via emissions label or 8th VIN digit.
- Confirm vehicle is All-Wheel Drive (AWD).
- Verify original transmission part number matches 24297433.
What the install really takes — plan and budget with confidence:
Special tools this job needs:
- Engine support fixture/bar
- Transmission jack
- GM-compatible diagnostic scan tool (MDI 2 with Techline Connect / GDS2)
- DT-52909 Manual Park Release Tool
- Torque wrench
Budget for these consumables at install:
- GM DEXRON-VI Automatic Transmission Fluid (approx. 5.3 to 6.3 quarts for service fill; 9.0 to 10.0 quarts for dry fill)
- Front pump/torque converter seal (GM Part #24293119 or equivalent)
- Axle shaft seals
- Professional-grade transmission cooler-line flush (e.g., Lubegard Kooler Kleen)
What your vehicle’s computers will need after the swap:
What’s involved: Solenoid Characterization Reprogramming and Transmission Service Fast Learn
sources differ: Arm 1 states Solenoid Characterization Reprogramming using the Transmission Unique Number (TUN) via GM SPS2 is mandatory prior to the Fast Learn procedure, while Arm 2 only notes the Transmission Service Fast Learn. The more cautious approach of requiring both TUN characterization and Fast Learn is selected to prevent immediate clutch damage.
Pro tips for a smooth first start-up — hand them to whoever does the install:
- Torque Converter Seating: Ensure the torque converter is fully seated into the front pump before bolting the transmission to the engine to avoid cracking the fluid pump.
- Solenoid Characterization (TUN/PUN) Documentation: Write down the 16-digit or 11-digit TUN from the barcode label on top of the case before installation, as it is inaccessible once installed.
- Fluid Level Check Procedure: No dipstick is present. Fluid level must be checked via the side level plug with the engine idling and fluid temperature strictly between 185°F and 203°F (85°C to 95°C).
- Bellhousing Dowel Pins: Ensure both alignment dowel pins are present in the engine block and clean to prevent input shaft, bearing, and pump failure.
Easy to get right once you know them:
- Skipping Solenoid Characterization and Fast Learn programming, leading to harsh shifting, slipping, and burned clutches.
- Ordering the wrong 9-speed variant (mistaking the 9T50 for the 9T60, or vice versa, or ordering a 9T65 meant for 3.6L V6 engines).
- Improper fluid level checking (checking cold or with the engine off, leading to overfilling or underfilling).
- Reusing contaminated cooler lines without performing a professional flush, washing debris into the new unit.
Not issues with the units on this page — the manufacturer documented these for every transmission of this family, wherever you buy one. Handy for your installer:
🔎 Recommended at install: Follow diagnostic roadmap for DTCs related to control solenoids causing erratic shifting, hesitation, or shudder.
🔎 Recommended at install: Caused by an undersized orifice in the valve body spacer plate slowing down the selectable one-way clutch (SOWC) release when fluid is below 32°F.
🔎 Recommended at install: Inspect and repair to prevent internal clutch damage or loss of propulsion.
🔎 Recommended at install: Commonly linked to a broken magnet in the park valve position sensors; prevents ETRS from releasing the park pawl.
🔎 Recommended at install: Use updated high-quality Dexron-VI fluid recommendations to mitigate vibration.
🔎 Recommended at install: Inspect and replace missing bolts to prevent fluid leaks and potential fire risk.
🔎 Recommended at install: Inspect for incorrect sun gear that could cause half-shaft disengagement, loss of drive power, or rollaway.
Researched from factory recalls, TSBs and OEM service data (reference unit 400-11084-5207469). Unit-specific details — mileage, condition, warranty, freight — are covered in the checkout interview.
Policies, in plain English.
Shipping & Handling
- Ships by LTL freight on a pallet — a real freight truck, not a parcel van
- Your checkout freight quote covers delivery to your door (liftgate service included for residential addresses)
- The carrier calls ahead to schedule a delivery window — someone must be present to receive it
- Typically palletized and picked up within 2–3 business days; transit time depends on distance
120-Day Warranty
This part includes a 120-day warranty.
- If the part fails within the warranty window, we'll replace it or refund per the coverage terms
- Coverage is parts-only — installation labor is not included
- Warranty covers defects — not installation errors, misuse, or damage after installation
Your pre-purchase interview reviews these exact terms with you before anything is charged.
Returns (30 Days)
We accept returns of uninstalled parts within 30 days of delivery for this part.
- Defective parts: We will replace the part or issue a refund at our discretion
- Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
- Return shipping: This part ships by freight (LTL) — the part price is refundable per the terms above, but shipping costs are non-refundable and return freight follows the seller's return terms. Your pre-purchase interview walks through the exact numbers before you buy
- Parts must be returned in original packaging and unmodified condition
- Poorly packaged returns that arrive damaged will not be credited
Damaged in Shipping?
Freight damage is rare — and you're fully protected when you do two things at delivery:
- Inspect before you sign — you're allowed time to look the pallet over while the driver waits
- Write any damage on the delivery receipt before signing — that one line is what makes a freight claim succeed
- Severe damage? Refuse the delivery — it goes back at no cost to you and we make it right
- Photograph the pallet before unwrapping; report concealed damage within 24 hours of delivery
We handle the carrier claim — you just help document it. Your pre-purchase interview walks through this checklist too.
Order Cancellation
Cancel before shipment for a full refund. Once the pallet has been built, a preparation charge may apply — and once the freight carrier picks it up, shipping costs are non-refundable and standard return terms apply. Your pre-purchase interview shows the exact numbers before you pay.
Expert Guides
2020-2023 Chevrolet Blazer 2.0L Turbo AWD 9-Speed Transmission: Problems, Identification, and Used Replacement
Identify the exact 9T-series variant for your 2.0L AWD Blazer, understand common shudder and shifting failures, and learn what to look for when buying a used replacement unit.
Read Full Guide →Related Trouble Codes (OBD-II)
2 matching guidesIf your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.
Miscellaneous Information
OEM Part Numbers:
GM: 24297433
Fits Years: 2020 2021 2022 2023
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This unit ships with the selling yard's 120-day warranty. Longer plans can be requested during checkout.
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