2004 Buick Rainier buying guide

A data-driven checklist for buying a used 2004 Buick Rainier, built from 158 owner complaints, 2 recall campaigns, 653 service bulletins and federal safety records — not opinions.

Know before you buy

2 recall campaigns affect this model year. Check each one and confirm the repairs were done — recall work is free at any authorized dealer.
Main problem areas: electrical system (83), exterior lighting (21), power train (15), vehicle speed control (12), air bags (10).
Reported incident mileage: among 129 complaints with a usable odometer reading, half were filed between 40,000 and 97,400 miles (median 64,000). This describes when owners reported problems — it does not predict when a particular vehicle will develop one.
3 federal investigations have named this model year — read what they cover.
Fuel economy: 15–16 MPG combined (EPA; engines: 4.2L 6-cyl, 5.3L 8-cyl).

When problems get reported

Reported incident mileage among 129 complaints with usable odometer readings.

under 20k		13
20–40k		19
40–60k		27
60–80k		19
80–100k		21
100–150k		20
150k+		10

Before you hand over money

Run the VIN through our free VIN decoder to confirm the exact build.
Check open recalls by VIN at nhtsa.gov/recalls — a recall that was never fixed is a free repair you can claim.
Get a pre-purchase inspection focused on the problem areas listed above.

This guide is generated from official NHTSA, EPA and FARS records. Complaints are unverified owner reports and raw counts are not adjusted for sales volume.