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GM transmission bolts missing, leak and fire risk

NHTSA campaign 20V668000 · Reported Oct 29, 2020 · General Motors LLC

critical How serious is it? About this label

A transmission fluid leak can eventually leave the vehicle unable to move under its own power, and if the fluid reaches a source of ignition it could catch fire, raising the risk of both a crash and a fire. The notice does not tell owners to stop driving.

Key facts

NHTSA campaign number	20V668000
Reported to NHTSA	Oct 29, 2020
Manufacturer	General Motors LLC
Part affected	Power Train:automatic Transmission
Vehicles covered	25 model/year combinations, model years 2018–2020
Do-not-drive advisory	No
Park-outside advisory	No
Repair	Free at any franchised dealer

What's wrong, in plain English

On certain GM vehicles, the endcap on the start/stop transmission accumulator may be missing bolts. This can let transmission fluid leak out. Over time, the leak can get bad enough that the vehicle loses the ability to move forward. If the leaking fluid comes into contact with something that can ignite it, it could catch fire.

What you should do

1. Check your VIN at nhtsa.gov/recalls to confirm your vehicle is included.
2. Contact your dealer to have the accumulator inspected; call GMC at 1-888-988-7267, Buick at 1-866-608-8080, Chevrolet at 1-800-222-1020, or Cadillac at 1-800-458-8006.
3. If bolts are missing, the accumulator will be replaced free of charge.

Where do I find my VIN, and what do I tell the dealer?

Your VIN is the 17-character code on the lower left of the windshield, on your registration and usually on your insurance card. Enter it at nhtsa.gov/recalls to see whether this recall is still open on your car. When you call the dealer, say you have an open safety recall and give them NHTSA campaign number 20V668000. More in how recalls work.

Affected vehicles (25)

2018 Buick Lacrosse
2018 Chevrolet Cruze
2018 Chevrolet Equinox
2018 Chevrolet Malibu
2018 Chevrolet Traverse
2018 GMC Terrain
2019 Buick Enclave
2019 Buick Encore
2019 Buick Lacrosse
2019 Cadillac XT4
2019 Chevrolet Blazer
2019 Chevrolet Cruze

Show all 25 vehicles

2019 Chevrolet Equinox
2019 Chevrolet Traverse
2019 GMC Acadia
2019 GMC Terrain
2020 Buick Enclave
2020 Buick Encore
2020 Cadillac XT4
2020 Cadillac XT6
2020 Chevrolet Blazer
2020 Chevrolet Equinox
2020 Chevrolet Traverse
2020 GMC Acadia
2020 GMC Terrain

Who to contact

Buick — official Buick recall lookup

Customer service: 1-800-521-7300

Cadillac — official Cadillac recall lookup

Customer service: 1-800-458-8006

Chevrolet — official Chevrolet recall lookup

Customer service: 1-800-222-1020

GMC — official GMC recall lookup

Customer service: 1-800-462-8782

Any franchised dealer for the brand can do the repair. Phone numbers are taken from manufacturer sites and recent NHTSA notices; if one has changed, the number in your own recall letter is the one to use.

The bigger picture

Cadillac Power Train Recalls Cover Wheel Lockup and Lost Propulsion · all 8 Cadillac recalls in this area
Chevrolet Power Train Recalls Cover Drive Loss and Wheel Lockup · all 15 Chevrolet recalls in this area
GMC Power Train Recalls Cover Wheel Lockup and Lost Propulsion · all 10 GMC recalls in this area

Other GMC Acadia recalls

Oct 21, 2026GMC Acadia Front Seats May Have Insufficient Weldshigh
Feb 26, 2026GM vehicles may be missing the electronic owner's manuallow
Oct 12, 2023Cadillac XT5, XT6 and GMC Acadia windshield problemhigh
Mar 16, 2023Cadillac, Chevy, GMC SUVs Transmission Half-Shaft Failurehigh
Feb 2, 2023Cadillac XT5, GMC Acadia Half-Shaft Can Separatehigh
Sep 22, 2022Cadillac XT5, XT6, GMC Acadia Camera May Failhigh

All 18 Acadia recalls

Official notice

Component: POWER TRAIN:AUTOMATIC TRANSMISSION
Summary: General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse and GMC Terrain, 2018 Chevrolet Malibu, 2019-2020 Buick Encore, Buick Enclave, Cadillac XT4, Chevrolet Blazer and GMC Acadia, and 2020 Cadillac XT6 vehicles. The start/stop accumulator endcap may have missing bolts.
Safety risk: Missing bolts on the start-stop accumulator endcap could result in a transmission oil leak and may progress to a loss of propulsion, increasing the risk of a crash. A transmission fluid leak in the presence of an ignition source may increase the risk of fire.
Remedy: GM will notify owners, and dealers will inspect the start-stop transmission accumulator and replace it if any bolts are missing, free of charge. The recall began December 15, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick Customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202313440.

Verify your specific vehicle by VIN at nhtsa.gov. Recall repairs are free of charge by law.