ABS Light on Speedometer + Transmission Not Shifting? Help Needed!

Questions and Support
1

I’m having some issues with my Chevrolet, and I’m hoping someone here can help me out.

The Problem

Recently, I’ve noticed that the ABS light on my speedometer is consistently illuminated. At the same time, I’m experiencing a problem with the transmission not shifting properly. It’s really concerning because I rely on my vehicle daily, and these issues are making driving a bit of a challenge.

What I’ve Noticed

  • ABS Light: The light comes on unexpectedly, and I’m not sure what the trigger is. Could this mean there’s a problem with the anti-lock braking system?
  • Transmission Struggles: The transmission seems to be hesitant when shifting gears. Sometimes it feels like it’s slipping or just refusing to shift altogether.

What I’ve Tried

  • I’ve checked the brake fluid and it’s at a good level.
  • I tried disconnecting the battery to reset the system, but the ABS light came back on shortly after.
  • I’ve also been on the lookout for any diagnostic trouble codes (DTCs) using my OBD-II scanner, but nothing conclusive has shown up.

Questions

  1. Could these two issues be related? I’m worried there might be something more serious going on with the electronic systems in my car.
  2. What are some common fixes for ABS light issues? Would replacing a sensor typically solve the problem?
  3. Any advice on transmission issues? Should I take it in for a professional check, or are there any DIY fixes?

Conclusion

I appreciate any advice or insights you can provide. Even sharing similar experiences with these kinds of issues could be helpful. Thanks in advance for your help!

2

Hi there! When the ABS light is on, it often means there’s an issue with the ABS system, which can impact the speed sensor. This could impact your transmission as well. Check the wheel speed sensors and wiring for issues.

3

That makes sense! I was wondering if a faulty speed sensor could affect transmission shifting. It feels like everything’s interconnected.

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4

Definitely! A bad speed sensor can send incorrect readings to the transmission, causing it not to shift properly. I recommend scanning for any fault codes too—it could provide more insight.

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5

What are other potential causes? I heard wiring issues can also lead to these symptoms. Should I check that first?

6

Absolutely! Damaged or corroded wiring can disrupt the signal between the sensor and the vehicle’s computer. Make sure to inspect wiring harnesses for any visible damage.

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7

I had a similar issue and ended up having to replace my speed sensor and fix some wiring. Sometimes, the simplest solutions are overlooked!

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8

Glad to hear you found a fix! What about transmission fluid? Could low fluid also be a contributor to these shifting issues?

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9

Yes, low transmission fluid can lead to shifting problems as well! Make sure to check your fluid levels and condition. Old, burnt fluid can cause shifting issues too.

10

Ugh, car problems are the worst! Have you checked your fuses as well? Sometimes, a blown fuse could cause electrical gremlins in transmission control.

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11

So true! Hopefully, it’s something easy to fix. Should I bring it to a mechanic, or try DIY first?

12

If you’re comfortable, I’d say try some initial diagnostics yourself. However, if you’re not getting anywhere, it’s wise to consult a professional.

13

Good advice! But if it were me, I’d probably panic and call a tow truck first. I’m not very car-savvy!

14

Hey, no shame in that! Sometimes calling in the pros is the best way to go. Better to play it safe than end up making it worse!

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15

Haha, true! I guess I’ll try to check the basics first before resorting to a tow truck. Thanks everyone!

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16

I’ve seen this issue before! The ABS light often links to the wheel speed sensors. You might want to check those first. An OBD-II scanner can help diagnose the codes related to the ABS system.

17

That’s a great insight! I’ve also found that low transmission fluid can cause shifting issues. It’s good to check fluid levels while you’re at it.

18

Make sure to run a full diagnostic check. Sometimes the ABS light can illuminate due to multiple system failures. An OBD-II scanner can help pinpoint the exact problem.

19

True! Low fluid can indeed affect shifting. Don’t forget to inspect for leaks too; they’re often overlooked.

20

I had a similar problem, and it turned out to be a faulty speed sensor. It’s a relatively cheap fix and easy to replace yourself if you’re a bit handy.