2019 Buick LaCrosse

The 2019 Buick LaCrosse is a full-size sedan offering a comfortable ride and a spacious interior. It was available with two engine options: a 2.5L inline-4 (194 hp, 190 lb-ft torque) paired with a 6-speed automatic transmission, and a 3.6L V6 (310 hp, 268 lb-ft torque) paired with a 9-speed automatic transmission. Many owners appreciate the LaCrosse’s quiet cabin, smooth ride, and elegant styling. Some common complaints revolve around the infotainment system’s responsiveness and the relatively uninspiring handling compared to sportier rivals.

Engine

2.5L Inline-4 Engine

• Excessive Oil Consumption
  • Description/Symptoms: Some owners have reported higher than expected oil consumption. Symptoms can include the low oil pressure light illuminating, the engine running rough, or blue smoke coming from the exhaust.
  • Solution: Regular oil level checks and possible engine repairs, such as piston ring replacement, might be necessary.
  • Estimated Cost to Fix: $1,500 - $5,000+ depending on the extent of the damage.
  • Recalls: None Found

3.6L V6 Engine

• Valve Spring Failure
  • Description/Symptoms: Some owners experience valve spring failure, particularly on vehicles with higher mileage. Symptoms can include a ticking or knocking noise from the engine, a decrease in engine performance, or a check engine light.
  • Solution: Replacement of the affected valve springs.
  • Estimated Cost to Fix: $800 - $2,000+
  • Recalls: None Found

Transmission

6-Speed Automatic (Paired with 2.5L Engine)

• No Issues Found

9-Speed Automatic (Paired with 3.6L Engine)

• Harsh Shifting/Hesitation
  • Description/Symptoms: Some owners have reported experiencing harsh or jerky shifts, especially between lower gears. Others have described hesitation during acceleration.
  • Solution: In some cases, a transmission control module (TCM) reflash can resolve the issue. In more severe instances, valve body replacement or a complete transmission rebuild may be necessary.
  • Estimated Cost to Fix: $100 - $4,000+ depending on the solution
  • Recalls: None Found

Suspension

• Strut/Shock Absorber Leaks
  • Description/Symptoms: Premature failure of struts or shock absorbers, leading to leaks, a bouncy ride, and diminished handling.
  • Solution: Replacement of the leaking struts or shock absorbers.
  • Estimated Cost to Fix: $300 - $800 per corner, depending on the shop and part brand.
  • Recalls: None Found

Electrical

• Infotainment System Freezing/Rebooting
  • Description/Symptoms: The infotainment screen freezing, becoming unresponsive, or randomly rebooting. This can affect navigation, audio, and climate control functions.
  • Solution: Software updates, replacement of the head unit.
  • Estimated Cost to Fix: $0 (software update) - $1,200+ (head unit replacement).
  • Recalls: None Found
• Battery Drain Issues
  • Description/Symptoms: Battery draining prematurely, especially if the vehicle sits for extended periods.
  • Solution: Diagnosing parasitic draws, ensuring proper charging system operation, or replacing the battery.
  • Estimated Cost to Fix: $100 - $300 (diagnostics), $150 - $300+ (new battery).
  • Recalls: None Found

Exterior

• Headlight Condensation
  • Description/Symptoms: Moisture buildup inside the headlight housings.
  • Solution: Replacing the headlight assembly or attempting to seal the existing unit (though this may only be a temporary fix).
  • Estimated Cost to Fix: $300 - $800 per headlight assembly.
  • Recalls: None Found

Interior

• Sunroof Rattling/Leaks
  • Description/Symptoms: Rattling noises coming from the sunroof area, or water leaks, especially during heavy rain.
  • Solution: Adjusting or lubricating the sunroof mechanism; replacing the sunroof seals or entire assembly.
  • Estimated Cost to Fix: $100 - $1,500+ depending on the severity.
  • Recalls: None Found

Summary:

The 2019 Buick LaCrosse presents a mixed bag of potential issues. While the car is generally reliable, there are certain areas to be aware of. The most concerning problems appear to be related to the 3.6L V6 engine such as the valve spring failure and excessive oil consumption with the 2.5L engine, as well as harsh shifting in the 9-speed transmission. The electrical and infotainment systems also have reported problems but don’t seem to be as severe. The cost to repair these issues can range from minor fixes to substantial repairs, making a thorough inspection before purchase crucial. The 9-speed transmission and 3.6L engine are the two primary areas of concern when considering the 2019 LaCrosse.