2012 Volvo VNL service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Wiring diagrams and electrical sections
- Powertrain, brakes, steering, suspension, HVAC and more
Trims covered
- Base Straight Truck - Long Conventional
- Base Tractor Truck - Long Conventional
Engines covered
- 16.1L 984Cu. In. l6 DIESEL Turbocharged
- 14.9L 912Cu. In. l6 DIESEL Turbocharged
- 12.8L 780Cu. In. 6 DIESEL
- 10.8L 661Cu. In. l6 DIESEL Turbocharged
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
Volvo Trucks North America (Volvo) is recalling certain model year 2007-2014 VAH, VHD, VNL, VNM, and VT models. The affected vehicles were built without a redundant clutch disengagement switch. Witho
Without a signal to disengage the clutch when the brakes are applied, the distance required to stop
Volvo Trucks will notify owners and dealers will inspect and repair the vehicles if necessary. The
Volvo Trucks North America (Volvo) is recalling certain model year 2011-2013 VHD and VNL vehicles manufactured December 13, 2010, through July 17, 2012. These vehicles are equipped with an MGM Type 2
Overheated brake components could result in a fire.
Volvo will notify owners and the brake chambers will be replaced as needed, free of charge. The saf
Volvo is recalling certain model year 2012-2014 VHD, VNL, and VNM trucks, manufactured from April 18, 2011, through March 14, 2013, and equipped with a horizontally mounted remote battery disconnect s
Loose or chafed cables may lead to overheating of the battery cable and switch which may result in a
Volvo will send owners an interim letter and dealers will replace and relocate the remote battery di
VOLVO TRUCKS IS RECALLING CERTAIN MODEL YEAR 2012 VHD, VNL, AND VNM TRUCKS EQUIPPED WITH A MERITOR DRIVELINE. THE TUBING USED TO ASSEMBLE THE DRIVELINES HAS A NONCONFORMING SEAM WELD WITH INSUFFICIE
THIS CAN RESULT IN SEAM WELD FRACTURE WHEN TORQUE IS APPLIED. ONCE THE TUBE SEAM WELD IS FRACTURED,
DEALERS WILL REPLACE THE DRIVELINES FREE OF CHARGE. THE SAFETY RECALL BEGAN ON JULY 25, 2011. OWNE
Volvo Trucks North America (Volvo) is recalling certain model year 2011-2013 VNL and VNM trucks manufactured June 21, 2010, to December 14, 2012. The affected trucks are equipped with Fontaine Ultra
If the fifth wheel and locking mechanism are sufficiently damaged, the locking mechanism may fail to
Volvo will notify owners, and Fontaine dealers will replace the fifth wheel with an Ultra NT model f
Volvo Trucks North America (Volvo) is recalling certain model year 2011-2012 VAH, VHD, VNL, and VNM trucks manufactured February 1, 2010, through September 30, 2010 and June 1, 2011, through November
Inoperable wipers may result in poor driver visibility, increasing the risk of a crash.
Volvo will notify owners and dealers will replace the windshield wiper motor, free of charge. The r
Volvo Trucks North America (Volvo) is recalling certain model year 2012-2014 Volvo VNL trucks manufactured December 1, 2011, to September 1, 2013, equipped with certain Electric Auxiliary Power Units
If the mounting points crack and tear or the attaching bolts loosen or fail, the power unit may deta
Volvo will notify owners and IFS dealers will inspect the APU for damage and, where needed, install
VOLVO TRUCKS IS RECALLING CERTAIN MODEL YEAR 2011-2012 VNL AND VNM TRUCKS MANUFACTURED FROM MAY 1, 2010, THROUGH JANUARY 31, 2011. DURING THE COUPLING PROCESS, IT IS POSSIBLE FOR THE DRIVER TO PARTIA
IF THE DRIVER DRIVES AWAY WITH A TRAILER THAT IS NOT PROPERLY COUPLED, THE TRAILER CAN COME LOOSE AN
DEALERS WILL NOTIFY OWNERS, AND DEALERS WILL REPLACE THE LOCK BAR FREE OF CHARGE. THE SAFETY RECALL
VOLVO IS RECALLING CERTAIN MODEL YEAR 2011-2012 VHD AND MODEL YEAR 2011-2013 VNL AND VNM VEHICLES, MANUFACTURED FROM DECEMBER 2, 2010, THROUGH JANUARY 18, 2012, AND EQUIPPED WITH BENDIX ATR-6 TRACTION
INADVERTENT BRAKE APPLICATION CAN CAUSE THE BRAKES TO OVERHEAT AND LEAD TO A FIRE. INADVERTENT BRA
VOLVO WILL NOTIFY OWNERS, AND PROVIDE A TEMPORARY REPAIR UNTIL BENDIX DEVELOPS A PERMANENT REMEDY.
CBR - Automated Manual Transmission ( AMT ) Flywheel Pilot Bearing Wear On Input Shaft.
CBR - Active "Set Park Brake" Message On Drivers Information Display (DID)
CBR - Telematics Gateway (TGW) Connect Ability Issues.
CBR: TGW Will Not Connect After SIM Card Replacement
CBR: 11L Engine - Air Conditioner (A/C) Line Damaged At Bracket - Model Year 2007 to Present.
CBR: Volvo VHD & VN Models - Vehicle Wil Not Start, PTO Active Message Displayed In Cluster, PTO Light On When PTO Switch Is Turned Off
TSB: Barksdale Leveling Valve, Leak Test
CBR: Programming Failure - Chassis With Cummins Engine And An Allison Transmission
Showing the 8 most recent of 79 technical service bulletins on file with NHTSA.
DRAG LINK FAILED, A KNOWN ISSUE TO THE MANUFACTURER RESULTING IN TOTAL LOSS OF CONTROL. CRASHED INTO CENTER WALL THEN THRU GUARDRAIL AND DOWN EMBANKMENT. AIR BAGS FAILED TO DEPLOY ALSO. PASSENGER WAS
DRAG LINK FAILED, A KNOWN ISSUE TO THE MANUFACTURER RESULTING IN TOTAL LOSS OF CONTROL. CRASHED INTO CENTER WALL THEN THRU GUARDRAIL AND DOWN EMBANKMENT. AIR BAGS FAILED TO DEPLOY ALSO. PASSENGER WAS
TL* THE CONTACT OWNS A 2016 (NA) VOLVO VNL. THE CONTACT STATED THAT WHILE GETTING OFF THE TOP BUNK OF THE VEHICLE, THE CONTACT BECAME INJURED AND RECEIVED NERVE DAMAGE. THE VEHICLE WAS TAKEN TO THE DE
I BOTH THE VOLVO 780 SEMI TRUCK 8 MONTHS AGO AND I DO STILL HAVE A PROBLEM. I DO REPLACE WHOLE SUSPENSION, MAKE A 6 TIMES ALIGNMENT AND TRUCK STILL SWAY IN THE ROAD. DEALER FROM CONNECTICUT DO TEST D
TL* THE CONTACT OWNS A 2012 VOLVO VNL. THE CONTACT STATED THAT THERE WAS A MANUFACTURER RECALL ON THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER TO BE SERVICED, BUT THE CONTACT WAS UNCERTAIN IF THE
Showing the 5 most serious of 7 complaints filed with NHTSA.
