2018 GMC Terrain

Like the Equinox, the GMC Terrain shares the 1.5L LYX turbocharged engine that suffers from excessive oil consumption. Owners report needing to add oil between scheduled changes, and some experience oil-related warning lights. Prolonged low oil conditions can damage the turbocharger and engine internals.

Use Dexos Gen 2 full synthetic oil and check oil levels regularly. Dealers may perform an oil consumption test. If consumption is excessive, piston ring or short block replacement may be covered under powertrain warranty. Use premium fuel as recommended per GM TSBs to reduce carbon buildup contributing to oil consumption.

The fuel pump module can fail and deliver insufficient fuel to the engine, causing stalling and increasing crash risk. This is especially dangerous during highway driving or in traffic. The issue can develop gradually with intermittent symptoms before complete failure.

NHTSA Recall N222372310 covers the fuel pump module replacement. Dealers replace the defective module free of charge. Owners should watch for symptoms like rough idle, hesitation during acceleration, or intermittent stalling.

The 9-speed automatic transmission can exhibit rough shifting, hesitation during acceleration, jerking at low speeds, and delayed gear engagement. Some owners report the transmission slipping or the vehicle lurching forward unexpectedly. These issues are most noticeable during city driving with frequent stop-and-go conditions.

Transmission adaptive learning reset and software update at the dealer. Transmission fluid drain and fill with updated fluid specification. In cases of internal damage, torque converter or complete transmission replacement may be necessary.

Some owners report the front crankshaft seal blowing out, leading to significant oil leaks onto the engine and ground. If not caught quickly, the rapid oil loss can cause engine damage. Owners may notice oil spots under the vehicle, burning oil smell, or smoke from the engine compartment.

Replace the front crankshaft seal and inspect the crankcase ventilation system for excessive pressure that may have caused the seal failure. Clean engine of residual oil. Some cases require replacement of the crankshaft position sensor if oil damage occurred.

Certain 2022 Terrain vehicles equipped with Hankook tires were manufactured with an insufficient amount of curative agent during the tire vulcanization process. This defect can cause tread separation while driving, resulting in a loss of vehicle control and a blowout at highway speeds.

NHTSA recall issued for affected Hankook tires. Dealers inspect and replace defective tires free of charge. Owners should check for bulges, uneven tread wear, or vibrations that may indicate tread separation beginning.

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.

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.

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.

General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Equinox, Impala, Cruze, Volt and Bolt EV vehicles, GMC Terrain vehicles, Buick Lacrosse and Regal vehicles, Cadillac XTS and XTS Professional vehicles and 2018 Chevrolet Malibu vehicles. The rear brake caliper pistons may have an insufficient coating causing gas pockets to form, potentially reducing rear brake performance.

A reduction of braking performance can increase the risk of a crash.

GM will notify owners, and dealers will bleed the vehicle's brake system, free of charge. The recall began October 11, 2018. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 18279.

General Motors LLC (GM) is recalling certain 2015-2018 GMC Canyon, 2016-2017 Buick Envision, 2016-2018 Chevrolet Colorado and Malibu, 2017-2018 GMC Acadia, 2018 Buick LaCrosse, Cadillac ATS, Chevrolet Equinox, and GMC Terrain vehicles. The high pressure fuel pump may detach from its mounting flange, possibly resulting in the pump damaging the high pressure fuel line.

A damaged fuel line can create a fuel leak, increasing the risk of a fire.

GM will notify owners, and dealers will replace the high pressure fuel pump, and high pressure fuel pipe, free of charge. The recall began July 2, 2018. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 18188.

General Motors LLC (GM) is recalling certain 2018 GMC Terrain vehicles. The sensing diagnostic module (SDM) that senses a crash and deploys the necessary air bags may not power down correctly when the vehicle is shut off, causing it to be inoperative when the vehicle is restarted.

If the SDM becomes inoperative, it will not detect a crash or command the necessary air bag deployment, increasing the risk of injury in the event of a crash.

GM will notify owners, and dealers will reprogram the SDM with updated software, free of charge. The recall began June 29, 2018. Owners may contact GMC customer service at 1-800-462-8782. GM's number for this recall is 18179.

General Motors LLC (GM) is recalling certain 2018 Chevrolet Equinox and GMC Terrain vehicles and 2017-2018 GMC Acadia vehicles. The right front intermediate driveshaft may fracture and separate while driving.

If the front right intermediate drive shaft assembly separates while driving, the vehicle will lose propulsion, increasing the risk of a crash. If the assembly separates while parked on a grade, without the park brake engaged, the vehicle may move unintentionally, increasing the risk of a vehicle roll-away.

GM will notify owners, and dealers will replace the right front intermediate drive shaft assembly, free of charge. The recall began August 25, 2017. Owners may contact GMC customer service at 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 17329.