Exact make, model and year evidence from official US sources. Recall campaigns, ODI investigations, complaint allegations and EPA estimates remain separate.
A campaign may cover only certain production dates, plants or equipment. A zero result here is not safety clearance. Use NHTSA’s official VIN tool for the individual vehicle.
Exact model-level NHTSA results for 1996 BUICK Riviera. Campaign records are official safety actions; applicability to a particular car still requires its VIN.
A BACKFIRE DURING ENGINE STARTING CAN CAUSE BREAKAGE OF THE UPPER INTAKE MANIFOLD.
Consequence
THIS CONDITION CAN CAUSE A NO-START CONDITION AND POSSIBLY AN ENGINE COMPARTMENT FIRE.
Remedy
DEALERS WILL UPDATE THE POWERTRAIN CONTROL MODULE PROGRAMMING. UNTIL THE CAMPAIGN REPAIR IS MADE, THE VEHICLE HOOD SHOULD BE SHUT WHENEVER STARTING THE VEHICLE TO REDUCE THE CHANCE OF PERSONAL INJURY.
THESE VEHICLES WERE ASSEMBLED WITH A MALFUNCTION ALARM, LIGHTING AND LOCKING (MALL) MODULE THAT CAN CONTAIN A DAMAGED CAPACITOR. IF THE CAPACITOR IS DAMAGED, THE "KEY IN THE IGNITION" WARNING CHIME AND THE DRIVER SEAT BELT UNBUCKLED WARNING CHIME AND INDICATOR LAMP MAY NOT WORK. THIS DOES NOT MEET THE REQUIREMENTS OF FMVSS NO. 114, "THEFT PROTECTION" AND FMVSS NO. 208, "OCCUPANT CRASH PROTECTION." IN ADDITION, OTHER CHIME REMINDER FUNCTIONS, INTERIOR LIGHTING CONTROLS, AND POWER DOOR LOCKING FEATURES ARE ALSO AFFECTED.
Consequence
CONSEQUENCE OF NON-COMPLIANCE; THE DRIVER MAY NOT BE AWARE THAT THE KEY WAS LEFT IN THE IGNITION OR THAT THE SAFETY BELT WAS NOT BUCKLED.
Remedy
DEALERS WILL INSPECT AND, IF REQUIRED, REPLACE THE MALL MODULE.
02 · Owner allegations
55 NHTSA complaints
Counts are not adjusted for sales, vehicle age, mileage, publicity or reporting behavior. They are allegations, not defect findings or a reliability score.
Crash mentions
0
Fire mentions
1
Injuries reported
0
Most-reported component labels
ENGINE AND ENGINE COOLING11
SERVICE BRAKES9
ELECTRICAL SYSTEM8
FUEL SYSTEM8
HYDRAULIC8
GASOLINE7
Complaints across nearby Buick Riviera model years
Totals for the same nameplate, scaled against its highest year here. They are not adjusted for how many were sold, how old they are, how far they are driven, or how much publicity a fault received — an older or better-selling year will usually carry more reports. This shows where the reporting sits, not which year is better.
An investigation means ODI reviewed a possible safety issue for this exact model-year identity. Opening one is not a defect finding; closing one does not by itself clear a vehicle.
SEAT BELTS:REAR/OTHER · No associated recall campaign number was published in this investigation row.
04 · EPA configurations
Fuel economy & specifications
FuelEconomy.gov records are summarized as ranges where this model name has multiple engines, drivetrains or trims.
EPA configurations
2
Combined economy
19–21 mpg/MPGe
City / highway
16–17 / 25–27 mpg/MPGe
Engine displacement
3.8 L
Cylinders
6
Fuel type
Premium · Regular
Drive
Front-Wheel Drive
Vehicle class
Midsize Cars
Annual fuel-cost estimate
$3100–4200
05 · Evidence strength
Exact identity. Explicit limits.
No opaque score. Evidence strength is expressed through source availability, exact match method, jurisdiction and honest empty states.
exact match
Recall campaigns
2 exact US model-year records in this bounded view.
exact match
Complaints
55 exact US model-year allegations; narratives and VIN fragments are omitted.
exact match
ODI investigations
2 exact US model-year action numbers in the approved import snapshot.
canonical only
Model aliases
Only the exact NHTSA vPIC model name is published; unverified aliases are not merged.
not published
Manufacturer ownership
No rights-reviewed official ownership record is joined to this exact model-year.
PUBLIC EVIDENCE PASSPORT
Identity, freshness and provenance.
The canonical URL is this file’s permanent public identifier. Source IDs and timestamps show exactly what was matched and when; they do not turn the evidence into a verdict.
Only NHTSA vPIC, NHTSA ODI complaints and investigations, NHTSA recalls and FuelEconomy.gov contribute to this vehicle claim. CPSC equipment notices are searched separately and never joined to vehicle fitment. UK MOT, Canadian, New Zealand and European records are not merged into this US claim.
06 · Research paths
Diagnose first. Confirm fitment.
These are transparent searches, not diagnoses or endorsed parts. Recall remedies come before purchases; exact part fitment requires VIN, trim, powertrain, production date and OE number.
11 complaint labels
ENGINE AND ENGINE COOLING
Check recalls and diagnostic information before replacing anything.
Awin US and R2 affiliate inventory are not published until a US programme, merchant and exact-fitment projection are approved. No offer currently has both merchant approval and exact vehicle fitment, so commercial links never count as evidence.