Diagsheet

2019 GMC Terrain · symptom sheet

Engine stalls or loses power while driving

  • 25owner reports
  • 17,000median miles
  • 0involved a crash

Newest report Sep 24, 2026 · checked Sep 26, 2026

119 of the 185 complaints on this car are about the engine. 25 of those describe stalling. Only brake wear is reported more often on this car.

Tick what matches of 25 reports

13
7
21
4
1
2

What got replaced

Owners who name the part that was replaced mention the battery (3 reports).

Recalls and investigations

One recall on the engine covers the 2019 model year. A recall on the same system isn't always the same failure, so read the defect text.

20V-668Oct 29, 2020
Power Train:Automatic Transmission

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.

Risk and remedy
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.

All 3 recalls on the 2019 GMC Terrain, with the owner complaints on each recalled system

When it happens

The middle half of failures fell between 13,000 and 67,773 miles, from the 12 reports that gave a mileage.

419
120
721
122
323
224
325
426

What owners wrote

“First the car started jerking while drive over 50mph, next day driving down the street and the car shut off, stating loss of power. I replaced the battery, it was giving battery low codes, only to get a certified mechanic say the timing chain was out. Just purchased the car in March 2022.”

Filed Apr 22, 2024

Should you keep driving it?

This page can't tell you that. 0 of 25 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.

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