Chevy Trailblazer Transmission Problems & Cost

Introduced for the 2002 model year, the Chevrolet Trailblazer was the marque’s entry into the hotly contested midsize SUV segment. Sales were brisk, and this Chevy truck won many awards, partly due to its innovative engines. Even though it was discontinued in 2009, you still see plenty of them on the road today. This is thanks to those innovative and reliable engines, and that durable Chevrolet Trailblazer 4L60E. But, Trailblazer transmission problems still happen. So let’s find out what you can do about them.

Need a replacement transmission? Get an estimate for replacement transmissions and local installation. Look up your transmission model by vehicle make and model.

What Transmission Do I Have?

Chevy Trailblazer Transmission Models

Chevy Trailblazer: 4L60E Transmission

Chevy Trailblazer Transmission Replacement Cost Estimate

Pricing varies by model. To be 100% sure on pricing, have your VIN# handy and use our Get An Estimate feature to look up your transmission by VIN#.

Replacement 4L60E Transmission:

TransmissionStreet Smart TransmissionAutozoneAdvance Auto Parts
4L60E / 4L65E148015071599

What are the DTC codes related to Chevy Trailblazer transmission problems?

P0717 – Input/Turbine Speed Sensor Circuit No Signal – If the ECU can’t communicate with the input speed sensor, this DTC gets stored.
P0894 – Transmission component slipping – This OBDII trouble one of the gear ratios is not consistent with what the ECU is asking for.
P0756 – Shift Solenoid ‘B’ Performance or Stuck Off – If the ECU saved this code, then a solenoid isn’t working right, or it’s stuck off.
P0741 – Torque Converter Clutch Circuit Performance or Stuck Off – This diagnostic trouble code means the TCC solenoid is not performing according to specification.
P0961 – Pressure control solenoid ‘A’ control circuit range/performance – This code means there is a low voltage condition on a line pressure control solenoid.
P2769 – Torque convertor clutch circuit low – This diagnostic trouble code means the ECU is having a problem with the electrical circuit that controls the TCC solenoid.

Chevy Trailblazer Transmission Recalls

None Found

Chevy Trailblazer Technical Service Bulletins (TSB)

TSB PIP4051C – Harsh Shifting – Chevrolet Trailblazer 4L60E
Problem – Unusually harsh gear changes, combined with a P0717 DTC for an input shaft speed sensor error, are often caused by damage to the ISS sensor wiring.
Solution – If wire damage is found (usually to the white wire), the wiring and sensor will have to be replaced. The pump cover should also be examined for sharp points/edges that could damage the wiring. If any are found, they should be smoothed with a file.

Intermittent harsh shifting -Chevrolet Trailblazer 4L60E
Problem – A common Chevrolet Trailblazer 4L60E transmission problem is an intermittent hard 1-2 shift, often accompanied by engine bogging. This condition can be caused by the torque convertor clutch applying during the shift.
Solution – To remedy the problem, the wiring harness needs to be inspected from the transmission case connector to the rear of the engine on the driver side. It’s possible that the wires for the TCC solenoid and pressure control solenoid have become frayed on a body seam. If this is the case, the wiring will need to be repaired, and the harness repositioned.

PIP5071 – Squawking noise on the 2-3 shift – Chevrolet Trailblazer 4L60E
Problem – An unusual squawking or groaning noise may be heard on the upshift from 2nd to 3rd gear.
Solution – The 3-4 friction and steel plates, clutch plate, apply plate, and selective backing plates will have to be replaced.

Common Problems with the Chevy Trailblazer Transmission

Lack of Response
Leaking Fluid
Low Fluid
Burning Smell
Grinding or Shaking
Whining, Clunking or Humming
Refuses to Go Into Gear
Torque Converter Issues
Valve Body Issues
Transmission Noisy in Neutral
Gears Slipping
No 3rd or 4th Gear
No 1st or 2nd Gear
No Reverse
Dragging Clutch
Trouble Codes / Check Engine Light

Can I drive with a transmission problem?

Chevrolet Trailblazer transmission problems generally start out small, which may tempt you to keep driving the truck. However the continued strain of driving will eventually cause damage to other components, leading to a much higher repair bill. So you should really have a mechanic check the truck out at the first sign of trouble.

How often does a Chevy Trailblazer transmission need to be replaced?

Obviously, you will get a lot more life out of a transmission if you maintain it properly. Driving style and factory design flaws also play a part. That said, the average Chevrolet Trailblazer 4L60E transmission usually lasts between 130,000-180,000 miles. A remanufactured transmission on the other hand, can sometimes last a lot longer.

How are Chevy Trailblazer transmission issues diagnosed?

Although you might be able to guesstimate the cause of your Chevy Trailblazer transmission problems, you actually need the right tools and experience to figure out what needs to be fixed. An OBD2 code scanner is a good place to start, followed by a thorough visual inspection.

How is a Chevy Trailblazer transmission replaced?

To replace your Chevy Trailblazer transmission, it needs to be lifted up off the ground to access all of the parts that need to be unbolted. After the transmission is lowered to the ground (usually with a transmission jack), the new transmission can be installed in the reverse order. However, the ECU will have to be reprogrammed / reflashed to accept the new transmission.

Recommendations for Chevy Trailblazer transmission issues?

To save time and get back on the road faster, have your 17-digit truck VIN# handy and you can get an online quote for a reman Chevy Trailblazer transmission here, then find a local shop using our Find a Shop guide to install it for you.

How to Solve Chevy Trailblazer Transmission Problems

Solution A: Buy a Used Chevy Trailblazer Transmission

For a quick solution to most severe Chevrolet Trailblazer transmission problems, you may consider buying a used 4L60E transmission from the local junkyard. They’re cheap and easy to find. Plus most of them come with a warranty. However, it may have even more problems than you have right now, and you wouldn’t know unless you tore it apart.

Solution B: Buy a Rebuilt Chevy Trailblazer Transmission

A less risky option would be to get a rebuilt 4L60E transmission from either your mechanic, or a local transmission repair shop. These typically have a lot of new transmission parts, like seals and clutches. And they usually come with some sort of warranty. But many mechanics won’t know how to modify the transmission, so it won’t have the same inherent problems that stem from the factory design flaws. Plus, the warranty you get might only be good at that one shop, leaving you without warranty coverage if you travel.

Solution C: Buy a Remanufactured Chevy Trailblazer Transmission

To keep your truck on the road for as long as possible, you should strongly consider a remanufactured transmission. These typically contain higher quality transmission parts, and the whole build process can create a much better transmission, provided there are quality control checks in place. The warranties are usually much better too.

Fair Replacement Transmission Cost by Vehicle

  1. Find your transmission model in the table below for fair prices from reputable suppliers. Also fair labor cost for local installation at a local auto repair shop.

  2. Not Sure Which Transmission You Have?
    Click Here To Look It Up By Your Year, Make, Model
    Get Prices for Transmissions, Installation Hours and Estimated Install Cost

Fair Remanufactured Transmission Price Ranges by Transmission Model Updated for 2019

transmission repair cost
Download Replacement Transmission Cost Guide PDF

What Problem Does Your Chevy Trailblazer Have?

Let us know the year, mileage and problem you’re having as well as any trouble (OBD) codes you’ve found. If you’ve been given a quote or paid for a repair, we’d like to hear about that too!

Leave a Comment


I was driving at night going to my daughters check engine light came on po894 shifted funny twice I stopped. Shifting hard into first gear stop at her house later that night went home car drove perfect what do you think is the problem transmission fluid is perfect and clean


my trailblazer stopped pulling all of a sudden while driving like I just knocked it out of gear will not pull in any gear


I have a 2005 trailblazer with 219,000 miles on it. I was driving down the interstate when all of a sudden it felt like the transmission was bumped into neutral. Reverse and all drive gears are slipping. If I let it sit a minute and start it it will go, but then it’ll start slipping again. Any ideas?

Steve L

2005 Chevy Trailblazer LT. At 126,000 miles my check engine light came on. Upon having the code read, (P0894 “Transmission Component Slipping”) the estimate was $2100 to have the transmission replaced in Milwaukee, Wisconsin. The only problem that was noticed was a hard shift (1-2) after the truck was driven at highway speeds.


Changes gears but sounds like a manual transmission ready to change

danny wall

my trailblaser wont shift into any gear


My Chevy trailblazer will go in reverse but bill not go in drive what could be the problem


Mine did this and it was the shift selonoid


When u first start it,it shifts out good. But when it gets hot it goes to first an second,then its like it goes into nutrual,then I have no gears until it cools down,then it does it again. Its a 2002 Chevy trailblazer, the milage 233338.


Mine is doing the same thing. You found the problem yet?


my 2003 trailblazer is slow to shift gears. it winds out to like 2500 rpms before shifting


My trailblazer goes into drive, but not in reverse. There is also a huge leak of oil. What can I do to fix the problem?


My trailblazer 2004 make huge transsmision leak, what can I do


What can I do to get in gear


My 2005trailblazer4x4has a tapping near the transmission area in gear and out of gear and a chatter or shudder in drive around forty to fifty mph but not constantly.

Joy Mason

I stopped to turn around. When I put it in reverse, the transmission went into reverse but the gear shift went all the way into park. It would not let me take the gear shift out of park or even push in the button on the side of the handle, which has to be done before you can move the gear shift. When I took my foot off the break, it was still in reverse. Luckily, I was still near my house so I literally backed down the road to my driveway. After the car motor ran for a few minutes in my driveway, it died without me doing anything. My trailblazer is a 2004 with 230,000 miles. It has been a pretty good car and not given me too many problems. I’m not sure what went wrong today. I’m willing to spend some money on it because I feel like it is still in pretty good shape, but I don’t want to spend more than it is really worth. Not sure what to do.


The plastic clip the connects the shifter cable to the transmission has broke. Mine has done this twice