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2022 Traverse Rough Shifting and Transmission Warning

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Mike T. · rep 0 · May 25, 1:38 AM · 1 replies · solved · Question

Vehicle: 2022 Chevrolet Traverse Premier

My 2022 Chevrolet Traverse Premier has started acting up with its transmission. It feels like it's clunking into gear, especially from 1st to 2nd, and sometimes hesitates significantly to shift. This is happening intermittently, but it's becoming more frequent.

A "Service Transmission" message has popped up on the dash a couple of times, but then it goes away after a while. I haven't scanned for codes yet, but this is a fairly new vehicle, and I'm very concerned. Is this a known issue with these transmissions, and what should I do?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 1:38 AM

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ClearTheCode admin answer:

Transmission issues, especially on a relatively new vehicle like your 2022 Chevrolet Traverse Premier, are concerning. The symptoms you describe – rough shifting, clunking, hesitation, and a 'Service Transmission' warning – indicate a problem that needs immediate attention. While I can't provide specific codes without a scan, here's what could be happening and how to proceed:

  1. Check for Diagnostic Trouble Codes (DTCs):

    • Even if the 'Service Transmission' light goes off, a code is almost certainly stored in the Transmission Control Module (TCM) or Engine Control Module (ECM). Use an OBD-II scanner to retrieve these codes. Look for P-codes (powertrain) related to transmission performance (e.g., P07xx series) or U-codes (network communication) if there's a module issue.

  2. Common Causes for Transmission Problems:

    • Low or Contaminated Fluid: While less likely on a new vehicle, checking transmission fluid level and condition is a basic first step. Low fluid can cause shifting problems and overheating. Contaminated fluid indicates internal wear.
    • Faulty Solenoids: The transmission uses solenoids to control fluid flow for shifting. A failing shift solenoid can cause rough shifts, delayed engagement, or prevent certain gears from engaging.
    • Valve Body Issues: The valve body directs hydraulic fluid to the clutch packs. Problems here can lead to erratic shifting.
    • Software Glitches/Updates: Sometimes, rough shifting can be resolved with a software update to the TCM. Your dealership will have the latest updates.
    • Internal Mechanical Wear: Although rare on a new vehicle, excessive wear or damage to clutches, bands, or gears could be the cause.

  3. Driving Habits:

    • Avoid aggressive acceleration or heavy towing until the issue is resolved, as this can exacerbate the problem.

When to see a shop: Given that your Traverse is a 2022 model, it is almost certainly still under the factory powertrain warranty. Do not delay taking it to a Chevrolet dealership. Transmission issues are complex and require specialized diagnostic tools and expertise. Attempting to diagnose or repair it yourself could void your warranty or cause further damage. Document all symptoms, when they occur, and any codes you retrieved. The dealership will be able to perform a thorough diagnosis, check for technical service bulletins (TSBs), and perform any necessary repairs or software updates under warranty.

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