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2020 Chevrolet Colorado ZR2 Diesel

The 2020 Chevrolet Colorado ZR2 Diesel is a 135-hp turbocharged with a hydra-matic 6l50 6-speed automatic and four-wheel drive.

It makes 135 horsepower and 500 lb-ft of torque. EPA fuel-economy estimates are 18 mpg city and 22 mpg highway.

The Colorado measures 212.4 inches long on a 128.5-inch wheelbase and has a curb weight of 2,234 lb.

Spec Value
Vehicle
Body TypePickup
PowertrainDiesel
Price
Destination Charge$1,195
Engine
Engine Type2.8L I-4 Turbo-Diesel: grey cast iron block, cast aluminum head, DOHC 4 valves/cylinder, common rail direct fuel injection. Available on ZR2/Bison.
Horsepower135 hp
Torque500 lb-ft
Valvetrain3.6L V-6: DOHC, 4 valves/cylinder, continuously variable valve timing. 2.8L Diesel: DOHC, 4 valves/cylinder
Bore and Stroke94 x 100 (2.8L Diesel)
Injection Typecommon rail direct fuel injection (2.8L Diesel)
Drivetrain
Drive Type4-wheel drive (4WD) standard; class-exclusive front and rear electronic locking differentials
Transmission
TransmissionHydra-Matic 6L50 6-speed automatic (2.8L diesel)
1st Gear4.06
2nd Gear2.37
3rd Gear1.55
4th Gear1.16
5th Gear0.85
6th Gear0.67
Reverse3.2
Final Drive3.42
Fuel Economy
City18 MPG
Highway22 MPG
Recommended Fueldiesel (2.8L)
Suspension
Front SuspensionIndependent coil-over-shock with Multimatic Dynamic Suspensions Spool Valve (DSSV) dampers; electronic locking front differential
Rear SuspensionSolid axle with semi-elliptic two-stage multi-leaf springs; Multimatic Dynamic Suspensions Spool Valve (DSSV) dampers; electronic locking rear differential
Brakes
Front Brake CalipersPower-assisted four-wheel disc with Duralife long-life rotors; standard ABS; hill-descent control
Front Brake Disc12.20 in / 310 mm (Duralife)
Rear Brake Disc12.75 in / 324 mm (Duralife)
Tires & Wheels
Wheels Front17 x 8-inch aluminum
Wheels Rear17 x 8-inch aluminum
Tires FrontP265/65R17 Goodyear Wrangler Duratrac off-road
Tires RearP265/65R17 Goodyear Wrangler Duratrac off-road
Dimensions & Weight
Length212.4 in
Width76.7 in
Height72.2 in
Wheelbase128.5 in
Front Track65.9 in
Rear Track65.9 in
Curb Weight2,234 lbs
Interior
Headroom Front41.4 in
Headroom Rear36.7 in
Legroom Front45 in
Legroom Rear28.6 in
Shoulder Room Front57.5 in
Shoulder Room Rear57.3 in
Hip Room Front55 in
Hip Room Rear52.2 in

Safety & Recalls

NCAP safety ratings

Overall ★★★★★
Frontal crash ★★★★★
Side crash ★★★★★
Rollover ★★★★★ (21.2 % risk)
Tested variant: 2020 Chevrolet Colorado PU/CC 4WD
Other tested variants (3)
  • 2020 Chevrolet Colorado PU/EC 4WD: 4 ★ overall
  • 2020 Chevrolet Colorado PU/CC 2WD: 4 ★ overall
  • 2020 Chevrolet Colorado PU/EC 2WD: 4 ★ overall

Recalls

No recalls on file with NHTSA for the 2020 Chevrolet COLORADO.

86 owner complaints to NHTSA for the 2020 Chevrolet COLORADO

Owner Complaints

86 owner complaints filed with NHTSA for the 2020 Chevrolet COLORADO (1 mention a crash, 3 a fire, 3 an injury). See all on nhtsa.gov

Most-cited areas
Power Train33
Engine18
Unknown Or Other15
Service Brakes11
Steering10
Electrical System6
A complaint can cite more than one area.
Most recent complaints
Oct 21, 2026 · Engine
“The engine malfunctioned, specifically the 4 camshaft actuator solenoid valves, making the car unable to safely drive. The check engine light came on, likely indicating the car was unsafe to drive. GM…”
Oct 8, 2026 · Service Brakes
“Coupling on vacuum pump broke off while in motion. Pieces fell near engine. Camshaft, vacuum pump and brake booster will need to be replace. Vehicle mileage is at 65124 miles. No reason to have such a…”
Sep 14, 2026 · Power Train
“My 2020 Colorado at 14k miles, the dealer did the transmission oil flush and it helped till the warranty ran out. Now I have the same problem again at 32k miles. I bought the truck because GM said the…”
Sep 4, 2026 · Service Brakes
“On September 4, 2026, I experienced an extremely serious and frightening braking failure while driving my 2020 Chevrolet Colorado 2.5L. I was driving my granddaughter to school and was pulling into…”
Sep 1, 2026 · Steering, Service Brakes, Engine
“While driving my 2020 Chevrolet Colorado through [XXX], the truck began having difficulty accelerating. As I exited the highway and turned into a gas station, the truck suddenly lost power. The…”

Complaints are unverified reports submitted to NHTSA by owners. They cover the whole model year, not a specific trim, and a count alone doesn't show how common a problem is.

Source: US National Highway Traffic Safety Administration (nhtsa.gov), matched as 2020 CHEVROLET COLORADO. US-market vehicles only; data cached for up to 7 days.

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