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GM Issues TSB On Chevy Express And GMC Savana Over Faulty Brake Calipers

General Motors has issued a technical service bulletin (TSB) on the 2021 model year Chevy Express and GMC Savana utility vans over an issue related to the front and rear brake calipers.

The problem: affected vehicles may have two separate potential conditions. The first problem is related to one of the front calipers, which may have been produced out of specification on the caliper clearance to the rotor, resulting in brake drag. The second problem affects the rear caliper, which may have been damaged while the vehicle was on the assembly line.

The hazards: if left unaddressed, the first problem may lead to reduced pad life, eventually causing the vehicle to pull to the right or left. The assembly line damage in the second issue, meanwhile, may have caused a microcrack in the rear brake caliper’s piston, which can cause the brake fluid to leak. This will also illuminate the brake malfunction indicator lamp (MIL) on the instrument panel, alerting the driver of the issue.

Chevy Express

The fix: dealers are instructed to replace both the front and rear brake calipers, which should fix both problems in affected vehicles. These repairs will be performed at no cost to the vehicle owner.

Affected vehicles:

Next steps: GM will notify owners of affected 2021 Chevy Express and GMC Savana vehicles and instruct them to make an appointment with their dealer. Owners who have questions regarding this technical service bulletin can use the contact information below to reach out to Chevrolet or GMC directly. This TSB program will remain in effect until February 28rd, 2023.

Contacts:

  • General Motors TSB number: N202325860
  • Chevrolet Customer Service: 1-800-222-1020
  • GMC Customer Service: 1-800-462-8782

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Sam loves to write and has a passion for auto racing, karting and performance driving of all types.

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Comments

  1. How do you screw up something like this on a platform that’s over two decades old?

    Reply
    1. Probably due to COVID lol.!!!

      Reply
    2. Times one million. Should have never happened. Been building too many of these for decades for amateur stuff like this to even happen.

      Reply
  2. The result of this is someone on the assembly line will get a suggestion award for suggesting a fix for a problem they saw that management wouldn’t stop the line to fix. It’s cheaper to let dealerships repair than to hold up production. I was a captive mechanic on an assembly line for 4 years and I’ve seen this type of management many times, they don’t stop the line for anything that can be addressed later at the dealer. Plus the mechanic that eventually repairs it doesn’t get paid nearly as much for warranty work as they do for customer pay work. So it’s a win win for manufacturers.

    Reply
  3. Can someone recommend Plus Size Sexy Nightwear? Cheers xx

    Reply
    1. 2 six packs.

      Reply
    2. I hope they replace all 4 so they are matching pairs?

      Reply
  4. Wow, never had issues like this on my 75 Chevy Beauville van!

    Reply
  5. Someone who works at GM or knows someone who does: is GM going to make an electric version of this proven van platform they have essentially been building since the 1970’s to compete with the electric Transit, RAM, and Sprinter?

    Reply
  6. i have a 2019 express 2500 , been having prob. with excessive steering wheel shimmy when brakes are applied, only 19000 mi. on it to date, maybe they need to stop sourcing parts from china

    Reply

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