Safety Ratings

Frontal Moderate Overlap Test Results


Potential Number Of Units Affected: 3947

On certain pickup truck and sport utility vehicles equipped with 2-wheel drive, the right-hand antilock brake system (ABS) module feed pipe and/or brake crossover pipe tube nuts could have been tightened without seating the pipe-flared-ends enough to withstand normal assembly and vehicle inputs without partially unseating. If this occurred, the seal could have been broken during vehicle assembly, or brake fluid cycling, and a leak could occur, increasing the brake stopping distance. If so, the vehicle would not comply with requirements of FMVSS No. 105, "Hydraulic and Electrical Brake Systems".

Dealers will inspect the brake pipe union for signs of brake fluid and, if necessary, install a new brake pipe union. Owner notification began during late August 1999. Owners who do not receive the free remedy within a reasonable time should contact GMC at 1-800-462-8782.

Dates of Manufacture:
March - July 1999

Models Involved:
S10 Truck, Sonoma, Jimmy, Blazer

Manufacturer Recall Number:


The safety ratings and information is provided directly from the
Insurance Institute for Highway Safety (IIHS) and the National Highway Traffic Safety Administration (NHTSA)

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