This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in- Park, No Start - DTC B000A Set.
full bulletin at NHTSA ↗2023 Chevrolet Trailblazer powertrain problems
moderate 9 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Complaints
9
Recalls
0
Avg fix
$2,500
When does it fail?
Of the 9 powertrain complaints filed for the 2023 Chevrolet Trailblazer, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering powertrain on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.
full bulletin at NHTSA ↗This Preliminary information communicates diagnostic aids for a surge or fishbite concern
full bulletin at NHTSA ↗This service bulletin provides a repair procedure to correct a customer concern of start/stop inoperative, MIL illuminated w/DTC P2797.
full bulletin at NHTSA ↗This Preliminary information communicates information on what dealer technicians should due if they encounter a broken chain on a CVT transmission
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 4 most recent
The contact owns a 2023 Chevrolet Trailblazer. The contact stated that while driving at 68 MPH, the vehicle stalled. The message "Shift to Park" was displayed. The contact managed to pull over to the shoulder of the road, where the contact attempted to restart the vehicle; however, the vehicle failed to restart. The vehicle was towed to a local dealer, where it remained for further investigation.…
The contact owns a 2023 Chevrolet Trailblazer. The contact stated that after shifting into park(P), there was an abnormal beeping sound coming from the vehicle. There was no warning light illuminated. The contact shifted into neutral(N) and then back into park(P) to stop the beeping sound. The contact stated that while the vehicle was shut off and in park(P); the gear shifter independently…
Repeat issues with the transmission, ongoing issue for about two months. Initially experienced the vehicle not shifting in drive or reverse, which was resolved in drive. The issue persists when in reverse, where I will put it in gear but it will rev without moving, as if the vehicle is in neutral . The dealership has replaced the valve body three times and is now awaiting other parts to attempt…
When I shift my vehicle into park and hit the button to shut it off, a "shift to park" message appears on the DIC screen. I then am required to start my vehicle again, shift into gear, and then put it back into park and attempt to shut the vehicle off again. It has taken me up to 15 minutes to be able to get it to recognize that my vehicle is in park and for the message to not pop up. If I get…
Had powertrain trouble with your 2023 Chevrolet Trailblazer?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the powertrain problem on the 2023 Chevrolet Trailblazer?
It's a documented issue but not catastrophic. 9 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain typically fail?
Based on the 9 complaints filed, powertrain issues most often appear around 48,686 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2023/Chevrolet/Trailblazer.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.