Diagsheet

2018 Chevrolet Silverado 1500 · symptom sheet

Transmission fails or needs replacement

  • 31owner reports
  • 85,377median miles
  • $5,000median quote
  • 0involved a crash

Newest report Aug 4, 2026 · checked Sep 9, 2026

170 of the 515 complaints on this car are about the transmission and drivetrain. 31 of those describe transmission failure.

Tick what matches of 31 reports

1
12
5
4
5

What got replaced

Owners who name the part that was replaced mention the transmission (31 reports) and the torque converter (11 reports).

Recalls and investigations

No recall on the transmission and drivetrain covers the 2018 model year as of Sep 9, 2026.

What owners paid

8 of the 31 reports quote a price. Each dot is one quote. The middle half runs $1,158 to $7,907.

$1,158$5,000$7,907
$0k$2k$4k$6k$8k

When it happens

The middle half of failures fell between 69,000 and 100,000 miles, from the 18 reports that gave a mileage.

119
422
123
424
1625
526

What owners wrote

“Torque converter failed which led to premature transmission failure at 115,000. Known common issue with 6L80 and TSB advising this. No recall”

Filed Dec 22, 2025

“2018 Chevy Silverado with 84,000 miles and the transmission is broken. Truck is currently in a shop to have a new transmission installed.”

Filed Sep 11, 2025 · 84,000 miles

“I’ve had to have the transmission replaced before hitting 123k miles There is a constant shake, tremble in the car that dealer mechanics cannot figure out and they relate the issue to the transmission Electrical dashboard and ac lightning fixture burnt out”

Filed Jul 7, 2025 · 123,000 miles

“Bad torque converter cause transmission to totally fail. Had chevy do transmission flush,2 yrs ago. Back in Aug 2024, transmission started to slip,while driving,then totally failed,no forward or reverse gears,nothing, had truck towed into chevy dealer, almost $7000.00 later,transmission had to be replaced.”

Filed Mar 21, 2025

Should you keep driving it?

This page can't tell you that. 0 of 31 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.

File your own report with NHTSA. Complaint counts are how a problem gets an investigation.

Other problems on this car