2004 Chevrolet Impala

Complaint history

When NHTSA received these reports. Changes in reporting alone do not establish a change in failure rates.

Problems owners report

Listed groups have at least 3 complaints. The page includes the 20 largest groups plus any additional flagged groups; some complaints are not assigned to a group.

AI groups complaints by meaning; the groups are approximate. Share ratio compares the problem’s share of this vehicle’s complaints with its share on other vehicles over the last 24 months (shown from 3 recent complaints). A 2× ratio means twice the complaint share, not twice the failure risk. Flags mark unusual shares or recent surges after an AI review of the complaint content. “First signal” does not mean the pattern has persisted continuously.How recall estimates are calculated.

Recalls

• NHTSA recall #15V701000October 26, 20151,003,556 vehicles affected

  engine and engine cooling: engine; engine and engine cooling: exhaust system: manifold/header/muffler/tail pipe

  General Motors LLC (GM) is recalling certain model year 1998-1999 Chevrolet Lumina and Oldsmobile Intrigue, 1997-2004 Buick Regal and Pontiac Grand Prix, 2000-2004 Chevrolet Impala, and 1998-2004 Chevrolet Monte Carlo vehicles. The affected vehicles were previously repaired under recalls 08V-118, 09V-116, and 15V-201 to address the possibility that engine oil may drip onto the hot exhaust manifold.

  Engine oil that drips onto the hot surface of the exhaust manifold may result in a fire.

  Remedy

  The remedy applied under recalls 08V-118, 09V-116, and 15V-201 did not adequately remove the safety risk. Under the improved remedy, dealers will replace the engine’s front valve cover and gasket. Vehicles that are covered by recalls 08V-118, 09V-116, or 15V-201 that have not yet received the original remedy will instead receive the improved remedy under the original recall number. The recall began on February 19, 2016. Owners may contact Chevrolet customer service at 1-800-222-1020, Buick customer service at 1-800-521-7300, Oldsmobile customer service at 1-800-442-6537 and Pontiac customer service at 1-800-458-8006. GM's number for this recall is 15757. Note: Until the improved remedy has been applied, owners are advised to park their vehicle outside since the fire risk exists even when the vehicle is unattended.

• NHTSA recall #15V201000April 6, 2015330,742 vehicles affected

  engine and engine cooling: engine

  General Motors LLC (GM) notified the agency on April 2, 2015, that they are is recalling certain model year 2004 Buick Regal vehicles manufactured April 9, 2003, to June 1, 2003, 2004 Chevrolet Impala vehicles manufactured April 8, 2003, to June 23, 2003, and 2004 Chevrolet Monte Carlo vehicles manufactured April 7, 2003, to June 23, 2003. On May 18, 2015, GM expanded the recall to cover an additional 49,751 2004 Pontiac Grand Prix vehicles manufactured January 6, 2003, to June 25, 2004. In the affected vehicles, the valve cover gasket may leak.

  The leaking engine oil can drip onto the hot surface of the exhaust manifold, increasing the risk of a fire.

  Remedy

  GM will notify owners, and dealers will remove the plastic cover and plastic oil fill tube extension and replace the front valve cover and gasket. These repairs will be done free of charge. The recall began on April 24, 2015. Owners may contact Buick customer service at 1-800-521-7300, Pontiac customer service at 1-800-762-2737 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 14574.

• NHTSA recall #14V400000July 3, 20145,877,718 vehicles affected

  electrical system: ignition

  This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. General Motors LLC (GM) notified the agency on July 3, 2014, that they are recalling 5,877,718 model year 2000-2005 Chevrolet Impala and Monte Carlo, 1997-2003 Chevrolet Malibu, 2004-2005 Malibu Classic, 1999-2004 Oldsmobile Alero, 1998-2002 Oldsmobile Intrigue, 1999-2005 Pontiac Grand Am and 2004-2008 Pontiac Grand Prix vehicles. In these models, the weight on the key ring and/or road conditions or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine.

  If the key is not in the run position, the air bags may not deploy if the vehicle is involved in a crash, increasing the risk of injury.

  Remedy

  GM will notify owners, and dealers will install two key rings and an insert in the key slot or a cover over the key head on all ignition keys, free of charge. The recall began on September 9, 2014. GM's number for this recall is 14350.

• NHTSA recall #04V287000June 23, 200447,991 vehicles affected

  service brakes, hydraulic

  Certain passenger vehicles were produced with lower than specified torque on both front brake caliper to steering knuckle attachment bolts. With improper torque, the clamp load at the joint may not be adequate to prevent movement between the caliper bracket and knuckle.

  Depending on whether one or both bolts backs out or fractures, the result Can be locking of the affected wheel during braking and an abrupt steering input in the direction of the locked wheel, reduced braking and noise from the affected wheel, or severing of a brake hose, increased brake pedal travel, and reduced steering control. Reduced braking or steering control could cause a crash.

  Remedy

  Dealers are to tighten both bolts to the specified torque. Owner notification began on june 28, 2004. Owners should contact Chevrolet 1-800-630-2438 or Pontiac 1-800-620-7668.

Other model years

• 1995 44
• 1996 88
• 2000 818
• 2001 742
• 2002 795
• 2003 695
• 2004
• 2005 609
• 2006 524
• 2007 627
• 2008 810
• 2009 824
• 2010 442
• 2011 505
• 2012 258
• 2013 272
• 2014 638
• 2015 300
• 2016 111
• 2017 117
• 2018 59
• 2019 28