2019 GMC Sierra 1500 Reliability Score & Common Problems

Owners of the 2019 GMC Sierra 1500 frequently report issues with the vehicle's braking system, including sudden, unintentional braking and complete brake failure. Symptoms often described include the vehicle abruptly stopping without warning, brake pedals becoming stiff, and multiple brake-related warning messages appearing on the dashboard. These issues are reported to occur at various mileages, with some instances noted as early as 7,000 miles and others beyond 120,000 miles. Safety implications are significant, with reports of crashes and injuries linked to these brake failures. Buyers considering this model should be aware of these potential braking system issues and the associated safety risks.

Owners report frequent power steering failures in the 2019 GMC Sierra 1500, often resulting in the steering wheel becoming difficult to turn or locking entirely. Symptoms typically include loss of power steering assistance, accompanied by dashboard warnings such as "Service ESC" and "Steering Assist Reduced." These issues are noted across various mileages, with some occurring as early as 13,000 miles. Safety implications are significant, with three complaints involving crashes due to steering failures. Buyers considering this model should be aware of potential steering system malfunctions that may require significant effort to manage during driving.

Owners of the 2019 GMC Sierra 1500 frequently report issues related to water leaks, particularly around the rear window and third brake light, leading to concerns about mold and water damage. Complaints often describe problems with electronic systems, such as IntelliBeam headlights deactivating unexpectedly and backup cameras showing intermittent blue screens or fuzzy images, which can hinder visibility. Some owners experience rear-end lockups at low speeds, with two incidents resulting in injuries, raising safety concerns. These issues appear across various mileage ranges, with some electronic problems noted around 51,000 miles. Buyers should be aware of these recurring issues and the potential for costly repairs if outside warranty coverage.

Owners of the 2019 GMC Sierra 1500 frequently report engine failures, often necessitating engine replacements. Common symptoms include engine shuddering, loss of motive power, abnormal ticking sounds, and illuminated warning lights such as the check engine light. Many complaints mention engine issues occurring around 50,000 to 120,000 miles, with some indicating problems like metal shavings in the oil pan, lifter and camshaft damage, and engine seizing. Safety implications include instances where the vehicle loses power while driving, which could increase the risk of accidents. Potential buyers should be aware of these patterns and the potential need for significant engine repairs.

Owners of the 2019 GMC Sierra 1500 frequently report issues with water leaks, particularly from the rear window and third brake light, which can lead to water entering the cab and potential mold growth. Complaints also describe problems with the tailgate unlatching during transit, posing a risk of damage and safety concerns. Additionally, some owners note the peeling of the vehicle's exterior frame coating, leading to rust, typically around 25,000 miles. A few reports mention structural failures such as a sunroof explosion and a hard tri-fold bed cover detaching while driving. These issues suggest potential safety implications, including visibility problems and risks associated with unsecured vehicle components.

Owners of the 2019 GMC Sierra 1500 frequently report issues with the backup camera display brightness when the vehicle is put into reverse, particularly at night. Complaints describe the screen as being excessively bright, which can be blinding and makes it difficult to use side mirrors effectively, potentially compromising night vision. This issue appears to occur regardless of the vehicle's mileage, with no specific mileage range mentioned. Additionally, one owner reports a problem with LED headlamp covers becoming obstructed by snow, reducing visibility. Another owner notes an intermittent issue with the lane departure signal, which sometimes blinks only once instead of the intended three times. These issues are primarily related to visibility and could pose safety challenges when driving or reversing in low-light conditions.

Owners of the 2019 GMC Sierra 1500 report issues with air bags failing to deploy during collisions, notably in incidents involving rear-end and deer impacts. Common symptoms described include air bag covers detaching and smoke filling the cabin, with the vehicle's system indicating deployment despite no physical air bags being released. These issues are reported at low mileage, around 6,000 miles, and involve significant safety implications, as all documented cases involve crashes. Prospective buyers should be aware of these air bag deployment concerns, particularly in the context of crash safety.