Volvo WIA

Regulator investigations

Opened by NHTSA's Office of Defects Investigation. An investigation is a question the regulator asked about a possible defect, not a fault it found — most end without a recall.

• Frame bending

  Defect petition, opened September 2001, closed March 2002.

• Truck rollover crashes

  Preliminary evaluation, opened March 1999, closed September 1999.

What the maker told its dealers

Service bulletins are the manufacturer's own repair guidance to dealers, filed with NHTSA. A bulletin is not a defect finding; the count rises with how many things a maker writes down, not only with how many go wrong.

Volvo filed 26 bulletins about the 1999 WIA.

• Electrical system: 7
• Engine and engine cooling: 7
• Power train: 5
• Equipment: 3
• Fuel system, diesel: 1
• Service brakes, air: 1
• Suspension: 1
• Vehicle speed control: 1

• Volvo Chassis - Equipped with An Automated Manual Transmission (AMT, iShift) - SNV 19-002 - AMT Oil Filter Housing Corrosion · July 2022
• Volvo Chassis - Drag Link Inspection And Replacement Criteria · July 2022
• AMT Control Housing Bench Testing - False Failures · July 2022
• DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer · July 2022
• Programming Failure - Chassis With Cummins Engine And An Allison Transmission · July 2022
• NOx Sensor Troubleshooting Guide - US10+OBD13 And Newer Emissions · July 2022
• DTC U012100 - Lost Communication With Anti-Lock Brake System (ABS) Control Module, No Additional Information · July 2022
• (Back Office) - Cruise Control Inoperative After Updating Software VECU5 Without ESP Package (UESP) · July 2022

18 more.

Grouped by NHTSA's top-level system; a bulletin filed under a sub-heading counts toward its system.