2004-2007 Buick Rainier: Reliability
Updated: 11/23/08
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Our reliability study for this generation Buick Rainier includes details on average repair costs, manufacturer recalls, and everything you need to know to gauge the long-term reliability of this generation Buick Rainier .
Trouble Spots
Consumer Guide's® Auto Editors have scoured repair bulletins and questioned mechanics to search
for commonly occurring problems for a particular vehicle. In some cases we also give possible manufacturer-suggested
solutions. In many instances these trouble spots are Technical Service Bulletins posted by the manufacturer,
however, we have our own expert looking at additional vehicle problems.
Electrical problem:
The turn signals may stay on, or all four may flash at the same time due to a faulty flasher. (2004)
Electrical problem:
The ABS warning light may come on due to a poor electrical ground for the electronic brake control module. (2004-05)
Electrical problem:
On vehicles equipped with OnStar the global positioning system may lose precision (lose track). Window tinting may cause this or, if the antenna is in the rear parcel shelf, by things placed on the shelf. (2004-05)
Electrical problem:
If the OnStar system quits or won't come (no power), but comes back to life if the fuse is removed for five minutes, the vehicle communications interface module must be replaced or else the problem ill recur. (2004-06)
Fuel gauge:
The engine may not start or may stall because the tank is empty yet the gauge shows fuel remaining, or the fuel gauge will not show full after refilling due to sulfur corrosion of the fuel level sender and, if after treating with Fuel System Cleaner PLUS the problem remains, the sender may need to be replaced. (2004-06)
Fuel pump:
If the gas tank is hard to fill because the nozzle keeps clicking off, or gas spits back out, there is a problem with the filler pipe, which needs to be replaced along with a section of hose that has a check valve. (2004)
Tail/brake lights:
The taillights and brake light may quit working and new circuit board(s) will be installed under warranty for up to 6 years/72,000 miles. (2004)
Water leak:
Strange behavior of the 4WD or AWD system, especially after a car wash or rain could be due to water entering the speed sensor wiring at the rear sensor. (2004-05)
Water leak:
Vehicles with the 4.2L 6-cylinder engine may suffer from water in the transmission evidenced by rust on the dipstick and shuddering between 40-50 mph, requiring replacement of the dipstick tube. (2004-05)
Wipers:
The rear wiper may do a poor job for which there is a revised replacement wiper arm. (2004)
Consumer Guide® Estimated Repair Costs
This table lists costs of likely repairs for comparison with other vehicles. The
dollar amount includes the cost of the part(s) and labor (based on $50 per hour) for the
typical repair without extras or add-ons. Like the pricing information, replacement
costs can vary widely depending on region. Expect charges at a new-car dealership
to be slightly higher.
| Item Name | Repair Cost |
| A/C Compressor | $670 |
| Alternator | $460 |
| Automatic Transmission or Transaxle | $2,700 |
| Brakes | $580 |
| Clutch, Pressure Plate, Bearing | |
| Constant Velocity Joints | $2,130 |
| Exhaust System | $810 |
| Radiator | $670 |
| Shocks and/or Struts | $1,110 |
| Timing Chain or Belt | $560 |
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